食品专业英语课后习题翻译
食品专业英语翻译原文及译文
Characterization of the Seed Oil and Meal from Monechma ciliatum and Prunus mahaleb SeedsJAOCS, Journal of the American Oil Chemists' Society, Aug 2009 by Mariod, Abdalbasit Adam, Aseel, Kawthar Mahmoud, Mustafa, Ali Abdalgadir, Abdel-Wahab, Siddig IbrahimAbstractThe oil and meal from Monechma ciliatum (black mahlab) and Prunus mahaleb (white mahlab) seeds were characterized for their physicochemical properties. The oil content was found to be 30.95 and 13.15% in white and black mahlab seeds, respectively. The refractive indices of white mahlab oil (WMO) and black mahlab oil (BMO) were 1.475 and 1.470, and specific gravities were 0.8511 and 0.8167 g/cm^sup 3^, respectively. Saponification values were 184.23 and 180.3 mg KOH/g, peroxide values were 2.54 and 4.43 meq/kg, and unsaponifiable matter was 0.92 and 0.66%, respectively. The major fatty acids were palmitic 4.5%, stearic 16.0%, oleic 47.3%, and linoleic 31.4% in BMO, while in WMO they were palmitic 5.7%, oleic 45.0%, and linoleic acid 47.0%. A moderate amount of tocopherols were found at 45.2 and 28.5 mg/100 g in BMO and WMO, respectively. Protein content was found to be 21% in black and 28% in white mahlab seeds. The total amount of amino acids in black and white mahlab seeds was found to be 783.3 and 1,223.2 mg/g N, respectively. The concentration (on ppm dry-weight basis) of major elements (Ca, K, and Mg) and of minor elements (Al, Pb Ni, Mn, Cu, Cr, Co, and Fe) was also determined in the meals.Keywords Amino acid * Fatty acid * ICP-MS * Mineral elements * Monechma ciliatum * Physicochemical properties * Prunus mahlabIntroductionRecently, researchers all over the world have been looking to discover new sources of oils. In Sudan many studies have been done looking at the utilization of wild plants as a source of unconventional oil and theirmaximum utilities as antioxidants [1-3]. One of these wild plants, considered among the plants of the future, is black mahlab (Monechma ciliatum), which is well known in Sudan and belongs to the family Acanthaceae. Black mahlab is an annual glabrous herb, 30-65 cm high [4], with simple leaves measuring about 4-7 × 1-2 cm [5]. Black mahlab (Monechma ciliatum) is a famous medicinal plant in western Sudan, especially in the Nuba Mountains and Gabel Mara area. The seeds are used as an effective laxative and contain a fixed oil that emits a sweet and pleasant odor. Its further used in traditional Sudanese fragrances, lotions, and other cosmetics used for wedding preparation and childbirth [6]. In Botswana, Monechma ciliatum was believed to play an important role as a medicine for the remedy of general body pain, liver, and bowel trouble (diarrhea), as well as sterility in women [7]. The plant is used to induce labor and menses in Nigeria. It is also reported that the dried leaves are powdered and burnt as an inhalation for colds [8]. In Sudan, the dried entire plant is used for diarrhea, vomiting, and as a scent preparation. The seed oil content is 11.6% with iodine value of 69 and saponification value of 175.16; the fatty acid composition is 20.2, 17.3, and 17.9% for oleic, linoleic, and arachidic acid, respectively [9, 10]. Previous study by Uguru and others [5] showed that the hot methanol extract of the leaves of M. ciliatum has potent oxytocic property in vivo and in vitro, thus justifying its use in traditional medicine.White mahlab (Prunus mahaleb) is a deciduous tree, 1-2 m high, with many spreading branches; the bark is smooth and mahogany red. The leaves, which are up to 6 cm long, are bright green, shiny, oval, and finely toothed [H]. The white mahlab tree is a member of Rosaceae family, subfamily Prunoideae. The kernels of white mahlab seem to contain only small amounts of cyanogenic glycosides, but coumarin derivatives have been found. From the seeds, a fixed oil can be extracted that contains unusual conjugated linolenic fatty acid [12]. In Sudan, white mahlab is used in wedding preparations by crushing the seeds to manufacture traditional fragrances and lotions such as Dilka, Khumrra, and Darira. Also eating soaked white mahlab seeds is a remedy used for diarrhea in children. White mahlab is collected in Turkey and exported on a large scale. It is used in Turkey as a tonic or an antidiabetic in folk medicine and as a flavoring agent in making pies and candies. The white mahlab kernels form an important source of protein (30.98%) and fatty oil (40.40%). Its oil is also valuable in the preparation of lacquers and varnishes [12].Monechma ciliatum still grows as a wild plant in different areas in western Sudan states. No research data on its commercial production and its oil composition are available.Amino acid composition and protein digestibility measurements are considered necessary to predict accurately the protein quality of foods for human diets [13]. The widespread availability of vegetable oils around the world has resulted in the development of other oil-bearing plant species being neglected [14]. This study investigates the physicochemical and compositional properties including amino acids, minerals, trace elements, and fatty acids of seeds of the two mahlab plants, and a sensory evaluation of the oils obtained from these seeds is performed.Materials and MethodsSamples, Solvents, and ReagentsAll solvents used were of analytical grade. n-Hexane, methanol, chloroform, and petroleum ether were obtained from Prime for Scientific Services, Khartoum, Sudan. HCl, NaOH, HNO^sub 3^, and H^sub 2^O^sub 2^ were Suprapur grade (Merck, Darmstadt, Germany).Dried seeds of white and black mahlab were collected from a local market in Khartoum North, Sudan, then blended to obtain homogeneous samples, and pulverized before representative samples were taken for chemical analysis. For determination of the oven-dry weight, samples were dried at 105 °C for 24 h. Moisture and volatile matter in the samples were determined following a previously described method [15].Proximate Chemical AnalysisMoisture, lipid, ash, and crude-fiber contents were determined following the standard methods of the Association of Official Analytical Chemists [16]. The organic nitrogen content was quantified by the Kjeldahl method, and an estimate of the crude protein content was calculated by multiplication of the organic nitrogen content by a factor of 6.25 [17]. The two different samples were analyzed in triplicate. Total carbohydrate content was calculated from the difference, applying the formula:100% - (% protein % lipid %ash %fiber)Mineral AnalysisTwo replicate aliquote (500 mg) from each of the dried, powdered plant specimens were weighed, then wet-ashed by refluxing overnight with 15 mL of concentrated HNO^sub 3^ and 2.0 mL of 70% HClO^sub 4^ at 150 °C. The samples were dried at 120 °C, and the residues were dissolved in 10 mL of 4.0 N HNO^sub 3^-1% HClO^sub 4^ solution. The mineral content of each sample solution was determined by an Agilent Technologies 7500cinductively coupled plasma mass spectrometry (ICP-MS) system (Agilent Technologies, Wilmington, DE). Wavelengths used for the tested minerals were aluminum (Al) 396.152, calcium (Ca) 393.366, cadmium (Cd) 226.502, chromium (Cr) 206.149, cobalt (Co) 238.892, copper (Cu) 224.700, iron (Fe) 239.562, lead (Pb) 220.353, magnesium (Mg) 279.553, manganese (Mn) 257.610, nickel (Ni) 221.647, potassium (K) 766.490, and zinc (Zn) 213.856. The mineral contents of the samples were quantified against standard solutions of known concentrations, which were analyzed concurrently.Oil Extraction and DeterminationThe seeds were milled gently in a blender (Braun Multimix System 200, with Multimix deluxe grinder, MXK4 Germany), and oil was extracted by Soxhlet apparatus using petroleum ether 40-60 °C and determined following a previously described method [15]. The oil content was determined as a percentage of the extracted oil to the sample weight (w/w). The samples were analyzed in triplicate, then mean and standard deviation were calculated. The extracted oil was stored in a cold room (4 °C) in a dark glass bottle under nitrogen blanket for further analysis.Oil Physicochemical AnalysisFree fatty acids (FFA), iodine value (IV), saponification number (SN), peroxide value (PV), unsaponifiable matter, color, and refractive index (RI) were measured following a previously described method [15]. Color was determined using Lovibond Tintometer, Lovibond model E (Bicasa), suppUed by Griffin and Georgy, England, and refractive index was determined using an Abbe bench refractometer (model 46-315, England) with the temperature maintained at 30 °C. The analysis was done for the freshly extracted oils. The samples were analyzed in triplicate, then mean and standard deviation were calculated.Fatty Acid Composition by Gas Liquid ChromatographyThe fatty acid compositions of the seed oils were determined by gas liquid chromatography (GLC). The oils were converted to their corresponding methyl esters following a previously described method [15]. BF3/ methanol reagent (14% boron trifluoride) was used for methylation. GLC analysis of the fatty acid methyl esters (FAME) was performed using aHewlett-Packard HP5890 Series II gas Chromatograph (GLC) coupled to a flame ionization detector (FID) equipped with an Ultra 2 capillary column (25 m × 0.32 mm × 0.5 µm, 5% biphenyl and 95% dimethyl polysiloxane; Hewlett-Packard, Waldron, Germany), a split injector (split ratio 88:1), and an FID. The column temperature pro gram was 5 min at 150 °C, 10 °C/min to 275 °C, and 10 min at 275 °C. The injector temperature was 250 °Cwith a split ratio of 88:1. The carrier gas was hydrogen at a flow rate of 1.6 mL/min. The detector temperature was 280 °C with air and hydrogen flow rates of 460 and 33 mL/min, respectively. The fatty acid peaks were identified by comparing the retention times with those of a mixture of standard FAMEs (Sigma Chemicals, Deisenhofen, Germany). Each FAME sample was analyzed in duplicate.TocopherolFor determination of tocopherols, a solution of 250 mg of Monechma ciliatum and Prunus mahaleb oils in 25 mL ?-heptane was directly used for the HPLC. The HPLC analysis was conducted using a Merck-Hitachi (Tokyo, Japan) low-pressure grathent system fitted with an L-6000 pump, a Merck-Hitachi F-1000 fluorescence spectrophotometer (detector wavelengths for excitation 295 nm, for emission 330 nm), and a D-2500 integration system. The samples (20 µL each) were injected by a Merck 655-A40 autosampler onto a Diol phas e HPLC column (25 cm × 4.6 mm i.d.) (Merck) using a flow rate of 1.3 mL/min. The mobile phase used wasn-heptane/methy tert-butyl ether (MTBE) (99:1, v/v) [18].Amino Acid Composition by Amino Acid AnalyzerPreparation of Hydrolysate SampleThe content of dry matter and total N were determined according to procedures described by [16]. The content of amino acids (except for tryptophan) in defatted mahlab seeds was determined using Amino Acid Analyzer (L-8900 Hitachi-hitech, Japan) under the experimental conditions recommended for protein hydrolysates. Samples containing 5.0 mg of protein were acid hydrolyzed with 1.0 mL of 6 N HCl in vacuum-sealed hydrolysis vials at 110 °C for 22 h. The ninhydrine was added to the HCl as an internal standard. Hydrolysates were suitable for analysis of all amino acids. The tubes were cooled after hydrolysis, opened, and placed in a desiccator containing NaOH pellets under vacuum until dry (5-6 days). The residue was then dissolved in a suitable volume of a sample dilution Na-S buffer, pH 2.2 (Beckman Instr.), filtered through a millipore membrane (0.22-µm pore size) and analyzed for amino acids by ion-exchange chromatography in a Beckman (model 7300) instrument, equipped with an automatic integrator. Nitrogen in amino acids was determined by multiplying the concentration of individual amino acids by corresponding factors calculated from the percentage N of each amino acid [19]. The ammonia content was included in the calculation of protein nitrogen retrieval, as it comes from the degradation of some amino acids during acid hydrolysis [20, 21]. The ammonia nitrogen content was calculated by multiplying the ammonia content by 0.824 (N = 82.4% NH^sub 3^).Expression of ResultsThe composition of amino acids was expressed as milligrams per gram of N to estimate the quality of the protein in mahlab defatted seeds using the amino acid score pattern where amino acid ratio = (mg of an essential amino acid in 1.0 g of test protein/mg of the same amino acid in 1.0 g of reference prote in × 100). Nine essential amino acids were calculated by using a previously described method [13], where egg protein was used as reference protein.Sensory EvaluationPanelists were chosen to taste the two mahlab oils for characterization of their organoleptic properties (color, flavor, and taste). Oil samples were presented to the panelists in clear glasses at room temperature and in duplicate. The sensory analysis used was described in detail by Min [22]. Sensory qualities of the two oils were evaluated using a hedonic scale of 1-10, where 1 indicated the poorest flavor, color, and taste quality and 10 the highest organoleptic quality. The numerical results were then subjected to statistical analysis.Statistical AnalysisThe analyses were performed wi tìi three replicates. The mean values and standard deviation (mean ± SD) were calculated and tested using the Student's i-test (PResults and DiscussionProximate Chemical AnalysisThe proximate composition of the two mahlab seeds is given in Table 1. T he two samples showed significant differences (P ≤ 0.05) in all the analyzed constituents of the proximate composition except moisture content. The white mahlab seeds showed higher levels of lipid and protein content of 30.95 and 28.0 g/100 g, respectively, while black mahlab showed higher levels of fibers and carbohydrates content at 24.4 and 32.6 g/100 g, respectively. The results of oil content showed that white mahlab seed has a higher amount of oil (30.9 g/100 g) than the black mahlab seed (13.2 g/100 g). In 1981 Ayoub and Babiker [9] reported an oil content of 11.6% for black mahalb, which was higher than that reported in this study. Yücel [24] studied the seeds of Prunus mahaleb, and he found that die oil content ranged from 4.7 to 18.5 g/100 g, while Johansson et al. [25] mentioned that oil contents of Prunus mahaleb ranged from 12 to 16 g/100 g. The oilcontent of Prunus mahaleb in this study was higher than that found in these other studies.Oil Physicochemical PropertiesThe physicochemical properties of the two mahlab seed oils are shown in Table 2. Compared with Codex standards for crude vegetable oils [26], the white mahalab oil showed higher values for specific gravity, refractive index, acid value, peroxide value, saponification value, and unsaponifiable matter. Ayoub and Babiker [9] reported a lower saponification value (175.16) and a lower refractive index (1.4730) for black mahlab oil in comparison witìi me results in this study.From Table 2 it is instructive to note that the refractive indices for the white mahlab seed oil (1.475) and black mahlab seed oil (1.470) fall within the same range of 1.467-1.477 for grapeseed oil. The acid values for WMO and BMO of 7.8 and 7.3 mg KOHVg, respectively, were higher man the Codex standards for sunflower and ground nut oils, whilst the peroxide values for the WMO of 2.54 meq/Kg oil and for the BMO of 4.43 meq 02/Kg oil were less than that recorded for sunflower and ground nut oils in Codex standards. The percent unsaponifiable matter, shown in Table 2 for white mahlab (0.99%) and black mahlab (0.66%) seed oils, was less than that recorded for sunflower and ground nut oils in Codex standards [26].Sensory Evaluation of Black and White Mahlab OilTable 3 shows the results of the sensory evaluation for white and black mahlab oils. WMO oil scored more than 8 as overall score thus classifying the oil as better in color, odor, and taste. There was a significant difference (PFatty Acid CompositionThe fatty acid composition determined by GLC of the black and white mahlab oils is illustrated in Table 4. The major fatty acids in white mahlab seed oil were oleic (45.0%), linoleic (47.0%), and palmitic (5.7%). This result was higher than that reported by Yiicel [24], who reported 35.4, 28.5, and 4.6% for oleic, linoleic, and palmitic, respectively, in white mahlab seed oil. The major fatty acids in black mahlab seed oil were oleic (47.3%), linoleic (31.4%), stearic (16.0%), and palmitic (4.5%). This were higher than reported by Ayoub and Babiker [9] who reported 20.2, 17.3, and 12.5% for oleic, linoleic, and palmitic acids, respectively. They also reported 17.9% for arachidic acid, which was surprisingly not found in this study. The percentage of unsaturated fatty acids in white mahlab oil was 92.1%, while it was 79.9% in black mahlab oil. White mahlab oil was very richin both oleic and linoleic acid, while black mahlab oil was rich in oleic acid only.TocopherolThe tocopherol content of the oil from black and white mahlab seeds is given in Table 5. They had moderate amounts of tocopherols, 45.2 and 28.5 mg/100 g, respectively. The main tocopherol of the two samples wasγ-tocopherol, which represented 80.7 and 77.6% of the total, followed by a-tocopherol and δ-tocopherol, which represented 12.3 and 1.6 mg/100 g in BMO and 1.4 and 6.4 mg/100 g in WMO, respectively.Amino Acid ProfileThe amino acid profile of black and white mahlab seed, analyzed by amino acid hydrolysis, is presented in Table 6. The percentage ofsulphur-containing amino acids (methionine and cystine) in white mahlab seed was 3.9%, while in black mahlab it was 3.4% of the total amino acids, which was the lower than the other amino acids and was considered a reasonable amount for their important function in the cell processes in the oxidation and reduction system (cystine) and as a methyl donor (methionine) in metaboUsm. The total amount of the essential amino acids found in white and black mahlab seed was 623.8 and 454.8 mg/g N, respectively. The total aromatic amino acid levels (phenylalanine and tyrosine) found in white and black mahalab were 1 17.0 and 78.1 mg/g N, respectively. All the essential amino acids with the exception of tryptophan, which was not analyzed, were found to be present at low levels, and the total essential amino acids were found to be lower when compared to that of three different foods: broad bean (2740.0 mg/g N), wheat flour (1960.0 mg/g N), and soy flour (2,630.0 mg/g N) [27]. The total amount of the essential amino acids of white mahlab seed comprised about 50.9% of the total amino acids, which was less than that of black mahlab seed (58.0%).The chemical score suggested that the first limiting amino acid in black mahlab seed sample was methionine cystine followed by threonine, histidinen and isoleucine (Table 7). In the white mahlab seed sample, the chemical score suggested that the first limiting amino acids were threonine, methionine cystine, lysine, and isoleucine.Mineral CompositionMineral analyses are essential to guarantee the quality of any food product. ICP-MS aUowed us to determine the content of 13 minerals, many of which are required in human diets and others which are considered toxic.Table 8 summarizes the results of these analyses. Concentrations of major elements such as Ca, K, and Mg in white mahlab seeds (133.7, 204.2, and 102.2 ppm) were significantly (P <0.05)Table 8 also shows the content of potassium in black and white mahlab seeds was 204.2 and 80.53 ppm, respectively. Potassium plays an important role in human physiology, and sufficient amounts of it in the diet protect against heart disease, hypoglycemia, diabetes, obesity, and kidney disease. The content of magnesium in the studied samples (Table 8) was 102.2 and 69.13 ppm for BMS and WMS, thus providing 28.9 and 19.6% of the recommended dietary allowances [28], respectively. The concentrations of minor elements Al, Pb Ni, Mn, Cu, Cr, Co, and Fe levels were found at low levels in the studied samples.ConclusionsThe results reported here show that the seeds of two different species of mahlab plant collected in Sudan were different in their oil content and the physicochemical properties of that oil. Fatty acid composition was determined by GLC, and the major fatty acids were found to be 4.5% palmitic, 16.0% stearic, 47.3% oleic, and 31.4% linoleic in black mahlab oil. In white mahlab, the major fatty acids of me oil were found to be 5.7% palmitic, 45% oleic, and 47% linoleic acid. The amino acid profile of the defatted seeds as analyzed by amino acid analyzer indicated that the total amount of amino acids of black mahalb was 783 mg/g N and that of white mahlab was 1,223 mg/g N. The percentage of essential amino acids was 58.0% in black mahalb and 50.9% in the white mahlab. The results from sensory evaluation analysis of the two mahlab oils revealed that there was a significant difference (PAcknowledgements We thank Dr. B. Matthäus of M ax RubnerInstitute, Germany, for the analysis of tocpherols and Dr. Colin D. Costin of Cargill Global Food Research, USA, for his valuable help during the preparation of the manuscript. The third author thanks Mr. Mayudin Othman of Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, for ICP-MS mineral analysis.美国油脂化学协会杂志J.JOTA-OCSAug.2009Characterization of the Seed Oil and Meal from Monechma ciliatum and Prunus mahaleb SeedsJAOCS, Journal of the American Oil Chemists' Society, Aug 2009 by Mariod, Abdalbasit Adam, Aseel, Kawthar Mahmoud, Mustafa, Ali Abdalgadir, Abdel-Wahab, Siddig Ibrahim.班级：学号：姓名：来自梅类缘毛和圆叶樱桃种子的植物油和粕的特性摘要来自梅类缘毛（黑樱桃）和圆叶樱桃（白樱桃）籽的植物油和粕因它们的理化性质而具有特性。
食品专业英语
Lesson 1 Nutrition1.Food might be defined as any edible substance that provides nourishment when consumed. 食物可定义为食后起滋养作用的任何可食用的物质。
2.We need them for energy, for building and maintaining body tissue; and for regulating body processes the three essential functions of foods in the body.我们需要这些营养素来提供能量，构成和修补机体组织，调节机体生理过程。
这是食物在人体内的三种基本功能。
3.Nutrition might be defined as the process whereby we obtain the essential nutrients and use them to make many other substances our bodies need.营养可定义为人们赖以获得的必须营养素，并利用这些营养素来制造人体所需的其他物质的过程。
4.The term good nutrition implies that we are obtaining from our food all of the essential nutrients in the amounts needed to keep our bodies functioning and to maintain optimum health. A very simplified definition of good nutrition might be" eating the right foods in the right amounts.”由此可见，唯有营养素才是真正必需的，而正常提供营养素的则是食物。
食品专业英语(附翻译)
Effect of frying in different culinary fats on the fatty acid composition of silver carp 油炸不同烹饪脂肪对鲢鱼脂肪酸组成的影响姓名: 何毅学号: 110107904班级: 食工1105班完成日期: 2013/11/9DOI: 10.1002/fsn3.40食品科学与营养网页292–297，2013 年7 月关键字：•脂肪酸组成；•煎炸；•油；•鲢鱼摘要四种不同的油炒的影响(葵花籽油、大豆油、橄榄油、玉米油) 对鲢鱼脂肪酸的组成的影响进行了评估。
油炸后在所有评价样品的水分含量降低的鱼片脂肪含量增加。
意思是饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)、多不饱和脂肪酸（PUFA），∑ω3和∑ω6含量的原料鱼分别是26.1 ± 0.5、52.1 ± 1.1，15.1 ± 0.6，8.9 ± 0.1 和6.1 ± 0.4%。
煎炸导致脂肪酸鲢鱼脂质和油炸用的脂肪之间的交换。
作为一个相互作用的结果，MUFA，PUFA，∑ω6，和PUFA / SFA的比例样品炒向日葵，大豆和玉米油，显着增加，而大量的SFA下降。
煎炸了∑ω3/ω6比消极影响但橄榄油煎样品中的减少是其他样品之间最小。
除了在大豆油中长链ω3-多不饱和脂肪酸含量的样品由油炸不受影响。
简介海鲜是最丰富的ω3来源-长-多不饱和脂肪酸(LC-PUFA)，主要为二十碳五烯酸(EPA，20:5ω3) 和二十二碳六烯酸(DHA，22:6ω3) 链。
EPA和DHA的出现在个体发育中起着关键的作用，尤其是神经系统的发育、功能和心血管系统、免疫系统（Lauritzen et al. 2001年）的运作。
ω3和ω6多不饱和脂肪酸（PUFA）被认为是必不可少的，但由于他们不能在人体内合成，它们必须通过饮食获得(Mahan 和Escott-Stump 2005)。
食品专业英语课文及material翻译
Lesson 4WHO WHO has has been been actively actively actively participating participating participating in in the the development development development of of principles principles and and recommendation for the safety assessment of GM foods derived from genetically genetically modified modified modified organisms organisms organisms (GMO). (GMO). (GMO). 世界卫生组织现已积极的参与到对转世界卫生组织现已积极的参与到对转基因食品的安全评估的原则和建议的发展中。
The result developed in the course of various expert consultations from the basis for guidelines on national levels and are presently being incorporated into internationally recognized standards. 这个结果在各种专家磋商会议中得以发展并形成了国家水平指导方针的基础，目前正编入国际公认的标准中。
认的标准中。
The next generation of genetically modified foods will be crops with improved nutritional value, thus crossing the borderline to to ““functional foods foods”” and and ““nutraceuticals nutraceuticals””. . 下一代转基因食品将是营养价值得到提高的下一代转基因食品将是营养价值得到提高的作物，因此它跨越了功能食品和营养食品的界限Evaluations will increasingly have to consider the impact of a GM food on the overall nutritional status taking into account the different needs in developed and developing countries . 考虑到发展国家和发展中国家的不同需求，评估将越加考虑转基因食品在总营养状况方面的影响。
食品专业英语翻译
LESSON 1营养我们吃什么，以及我们如何确定我们吃营养状况的一个重要程度，并有外部和内部多种因素的影响。
谁的人要罚款的问题的答案：“我应该吃什么良好的营养？”很容易成为迷失在信息走廊迷宫，困惑由科学家提供的技术资料，由财富或提供简单的答案误导与产品销售[1]。
某处之间是合理的，常识性的信息，我们可以用它来指导我们的声音营养知识的追求。
首先，我们需要学习一些常用术语的定义和营养找出各种各样的指引，可帮助我们衡量我们的饮食质量和健康的饮食模式发展。
营养与食品：定义这个词往往是成对营养与食品一词，因为两者是相辅相成的。
它们是相互依存的，但不能互换。
食品可能被定义为任何提供营养物质，食用时饮用。
它是由许多天然成分的所有化学品的气味，如提供不同的功能了，味道，颜色和营养。
给我们的营养成分，被称为营养素。
这些营养素归类为脂肪，蛋白质，碳水化合物（糖和淀粉），矿物质，维生素和水。
他们被称为必需的营养素，因为我们不能让他们一直没有。
我们需要为他们的能量，为建立和维持人体组织，以及用于调节身体机能的三个食品在体内基本职能。
营养可能被定义为过程，我们得到了必要的营养，并利用它们让我们的身体许多其他物质需要，这个过程将包括饮食和消化食物，吸收和利用，或代谢，它含有的养分。
我们可以从食物中获得所有必需的营养。
但是，它可能获得不进食，消化食物，如果，例如，直接注入营养素如静脉营养静脉营养对我们的。
因此，它是所必需的营养素和食物，通常为他们提供[3]。
由于粮食是重要的，我们需要知道食物的，哪些是对各种营养素的最佳来源，成为一个健康的饮食营养如何结合他们的内容。
良好的营养一词意味着，我们从我们的食物都需要保持在我们的身体运作，并保持最佳的健康必需营养素的数额获得。
一个良好的营养非常简化的定义可能是“在正确的饮食量适当的食物。
”该工作涉及的营养科学家在人体中发现，每一个我们需要一笔发生的事情，当我们收到过多或过少，对粮食和死亡，我们应该吃什么食物和数额会有多大。
食品专业英语Lesson2 Carbohydrate
译文
食品专业英语
These carbohydrates are relatively inert chmeically although they bind water and develop significant viscosity and/or form gels.
食品专业英语
While some molecular aspects are in common to both groups, the sugars and polysaccharides have vastly different functional properties.
译文
尽管这两类物质在分子层面上有某些相似之处，但糖 和多糖的功能性质差异却很大。
食品专业英语
The hydrolysis of disaccharides to monosaccharides occurs with heat and acid and enzyme . Why do a reducing sugar have reactivity?
hint：ketone or aldehyde group
Gelatinization is temperature dependent starting as low as 50℃ and not being totally completed until temperatures reach 120℃。
译文 糊化作用与温度有关，始于50℃，直到120℃才完全结束。
食品专业英语
Saccharide 糖类； monosaccharide 单糖； disaccharide二糖；polysaccharide多糖； Reducing sugar还原糖；nonreducing sugar非还原糖 Covalent(ly)共价的(地)；co-，co-worker; ooperation
食品专业英语 lesson 11
Lesson 11 Nutritionmacro-大macro-nutrient(常量营养元素) ；macro-element (常量元素)micro——微micronutrient (微量营养元素)microelement (微量元素)mal——坏, 恶malnutrition (营养不良)；malodor ( 恶臭)pan(t)- , panta- ，panto——全,全部；原的,总的pantothenic acid (泛酸)Pan-American Airlines ( 泛美航空公司)puridine 吡啶pyridoxine 维生素B6,吡够素bio- 生物的biotin维生素H, 生物素1.Life is nourish ed by food, and the substances in food on which life depend arethe nutrients. 生命是由食品滋养的, 食品中生命需要的物质称为营养元素。
2.These provide the energy and building materials for the countless substances thatare essential to the growth and survival of living things. 这些营养元素是为大量生物生长和生存所必须物质的生成提供能量和组成原料。
3.The manner in which nutrients become integral parts of the body and contributeto its function is dependent on the physiologic and biochemical processes that govern their actions.营养元素成为机体的一部分及其帮助机体发挥正常功能的方式，主要依赖于支配其行为的生理和生化过程。
食品专业英语
1、some bacteria produce harmful toxins or other chemicals that are not present in the food .一些细菌产生一些并不存在于食物中的有害毒素或其他化学物质。
It is not the bacteria itself causes illness ,but rather the toxin the bacteria produce .疾病不是细菌本身产生的，而是细菌所产生的毒素引起。
This can happen even if the pathogen itself has been killed ,as long as it had sufficient time to produce enough toxin before dying.就算病原体本身已经被杀死它还是依然会发生，只要它有足够的时间在死亡之前产生足够的毒素。
2、Some bacteria enter the intestines live,survive the acidic environment of the stomach , and then produce a harmful toxin inside the human digestive system.一些细菌进入肠道后，在胃酸中幸存，进而在人体的消化系统中产生有害的毒素。
Toxico-infection is a combination of the previous two examples in that live cells must be consumed , but the toxin is produced in the intestine and it is the toxin that really causes illness.毒感染是前两者的组合的例子，活细胞必须被消耗，但在肠道内产生的毒素，它真的是导致疾病的毒素。
食品专业英语重点句翻译,仅供参考
Lesson 91. Lipids are a family of naturally occurring compounds grouped together on the basis of their relative insolubility in water in nonpolar solvents. These are naturally occurring molecules that can be isolated from cells and tissues by extration using nonpolar organic solvents.依据在水中的不溶解性和在非极性溶剂中的溶解性，脂肪以家族形式组成而自然出现的。
这些天然存在的分子可以通过采用非极性有机溶剂萃取的方法，在细胞和组织中分离得到。
2. Saturated fats have a uniform shape that allows them to pack together in a crystal lattice. Unsaturated fats have double bonds that introduce kinks into the hydrocarbon chain making crystal formation more difficult.饱和脂肪有一个均一一致的形状，这使得他它们能够在晶格中聚合起来。
不饱和脂肪有双键能使烃链发生扭曲，从而使晶体的形成更加困难。
3. 3. The The most most abundant abundant abundant lipid lipid lipid in in in olive olive olive oil oil oil is is glyceryl glyceryl trioleate, trioleate, a a trimester trimester trimester formed formed formed from from from glycerol glycerol glycerol and and oleic acid, a mono-unsaturated fatty acid with a cis double bond in the middle of the C 18 chain.橄榄油里最丰富的脂质是三油酸甘油酯，是甘油和油酸，与一个单不饱和脂肪酸加上一个顺式双键在C18链的中间形成的一种三聚体。
食品专业英语结课翻译英翻汉
英文文献暂时传不上去，名字叫fiavour formayron in meatand meat products:a revrew大家可以自己下载肉和肉制品中香气构成综述唐纳德S.莫特拉姆大学专业，食品科学与工艺，Whitek nights，读RG66AP，英国（1996年12月6日，接受1998年2月27日）摘要熟肉制品中的风味物质来自热反应过程，主要是美拉德反应和脂质降解反应。
这两种类型的反应涉及到复杂的反应途径，这就导致了产品多样性，以及熟肉制品中挥发性物质的量的增加。
杂环化合物，尤其是那些含有硫的物质是美拉德反应中产生的重要香气物质，它们提供咸、肉、烤、煮的气味。
脂质降解提供熟肉制品中具有脂肪香气的化合物以及那些用以区别不同品种肉的决定性香气物质。
美拉德反应过程中形成的化合物也可能与肉中的其他成分反应，增加整体香气的复杂性。
例如，脂质过氧化过程中形成的醛和其他羰基化合物已证实易于美拉德反应中间体反应。
这种相互作用会引起香气化合物的增加，但它们也修饰了肉香味化合物的整体香气。
特别是，这种相互作用可以控制含硫化合物和其他美拉德反应生成的挥发性物质的形成，以给予了熟肉制品最佳的风味特色。
⑤1998年爱思唯尔科技有限公司保留所有权利。
前言风味是描述肉类食用品质的重要指标，有关肉类风味物质的组成、化学性质及其在生产加工过程中影响风味形成的因素已有许多报道。
在加工方便美味食品中模拟肉类特征风味对形成所希望的特征性肉类风味是相当重要的。
肉类风味只有加热以后才能获得，而未烹调的肉类很少或没有香味，而只有血腥味。
在烧煮期间，瘦肉和脂肪组织中的非挥发性化合物之间发生了复杂的系列热诱导反应，从而导致大量反应产物生成。
尽管熟肉的风味受所形成的味感物质的影响，但在加热期间形成的挥发性化合物(嗅感物质)决定了其香味特征，并大大有助于形成特征性肉类风味。
已鉴定出的肉类挥发性化合物有1000多种。
与猪肉、羊肉或家禽相比，大部分化合物是从牛肉中鉴别出来的（Maarse与Visscher，1996年;莫特拉姆，1991年）。
食品专业英语翻译
During the late 18th and early 19th centuries, The use of deprivation studies allowed scientists to isolate and identity a number of vitamins .Initially, lipid from fish oil was used to cure rickets in rats, and the fat-soluble nutrient was called antirachitic A. 在十八世纪晚期十九世纪早期，科学家们运用隔离 法标识和确定了许多维生素。最初，来自于深海鱼的油 脂中用于治疗老鼠的佝偻病，这种脂溶性的营养物被称 做“治疗佝偻病症的A”
He made a conclusion that “ a natural food such as milk must therefore contain , besides these known principal ingredients , small quantities of unknown substances essential to life . ” 他得出了结论，像牛奶这样的天然食物中，除了 那些已经知道的确定的成分，少量的未知物质对 生命来说也是必需的。
However , his conclusions were rejected by other researchers when they were unable to reproduce his results . One difference was that he had used table sugar ( sucrose ) , while other researchers had used milk sugar ( lactose ) that still contained small amounts of vitamin B . 但是当其他的研究者无法重复他的实验结果时，他 的结论是不被接受的。不同之处在于，他用的是蔗糖 ， 而其他研究者用的是依然含有少量维生素B的乳糖.
食品专业英语课后习题汉译英
汉译英1中国出口的食品主要是劳动密集型食品，如动物产品、果品和蔬菜等。
China's export food is mainly labor-intensive food, such as animal products, fruits and vegetables, and so on.2食品消费水平的提高，将使中国有限的土地和水资源更加紧张。
The food consumption level rise, will cause China limited land and water resources more nervous.3中国的南部与北部、东部与西部、城市与农村之间在经济发展水平和生活水平上存在着明显差异。
China's southern and northern parts, east and the west, between the urban and rural economic development level and in life level there exists a significant difference.4食品能满足人体对能量和营养的基本需求Food can satisfy the human body for energy and basic needs of nutrition5街头快餐可以为人们提供廉价的营养食品，同时，也可能带来食品安全性危险。
Street fast food can provide people with cheap nutrition food, and at the same time, can also bring food safety risk.6.联合国粮农组织建议对街头食品营养状况和安全性进行研究。
The United Nations food and agriculture organization suggest to street food nutrition and safety for research. 7蛋白质是错综复杂、多钟多样的大分子物质，是食品中必需氨基酸和非必需氨基酸的来源。
食品专业英语部分翻译
P60第一段：Alcoholic beverages are produced from a range of raw materialsbut especially from cereals, fruits and sugar crops. They include non-distilled beverages such as beers, wines, ciders, and sake. Disitlled beverages such as whisky and rum are produced from fermented cerealsand molasses, respectively, while brandy is produced by distillation of wine. Other distilled beverages, such as vodka and gin, are produced from neutral spirits obtained by distillation of fermented molasses, grain, potato or whey. A variety of fortified wines are produced byaddition ofinclude sherries, port and Madeira wines. 酒精饮料可由很多原料来生产，但以谷物、水果和糖料作物为主。
酒类饮料包含非蒸馏饮料，如啤酒、葡萄酒、苹果酒和日本米酒。
蒸馏饮料如威士忌和朗姆酒分别由谷物和糖浆发酵制得，而白兰地则是由葡萄酒蒸馏制得。
其余蒸馏饮料，象伏特加和杜松子酒则由发酵糖浆、谷物、马铃薯或乳清所得的白酒经蒸馏制成。
各种各种的加强葡萄酒是在葡萄酒中增添蒸馏的白酒使酒精含量提升到15 -20 %制成。
有名的产品有雪梨白葡萄酒、波尔多红葡萄酒和马德拉烈性甜酒。
食品专业英语5食品的保藏
2017/10/13
《食品专业英语》习题参考答案
III、Translation 1.有时是冷却介质和食品成分之间作用。 2.常见的气体冷却介质是空气和二氧化碳。 3.常见的液态冷却介质是盐水，水和液氨。 4.The vacuum cooling also is called pressure reduced cooling. It is food material in a vacuum environment and kept the water vapor pressure of cool environments below the vapor pressure of food material. 5.Along with the varieties and fruit storage conditions the refrigeration condition will fluctuate.
2017/10/13
《食品专业英语》习题参考答案
II、Fill in the blanks with the proper words. 1.atmosphere 2.toxicity 3.recovery, brief 4.tolerant , capacity 5.speed , extent 6.Ethylene 7.degrading, toughening 8.optimum 9.cytoplasmic 10.inert
2017/10/13
《食品专业英语》习题参考答案
II、Fill in the blanks with the proper words. 1.half-finished 2.materials 3.raw，grain 4.inhibited 5.enzyme 6.Active 7.corruption，respiratory 8.heats 9.quality ， freshness 10.transferred
食品专业英语
Lesson 1 Nutrition1.Food might be defined as any edible substance that provides nourishment when consumed. 食物可定义为食后起滋养作用的任何可食用的物质。
2.We need them for energy, for building and maintaining body tissue; and for regulating body processes the three essential functions of foods in the body.我们需要这些营养素来提供能量，构成和修补机体组织，调节机体生理过程。
这是食物在人体内的三种基本功能。
3.Nutrition might be defined as the process whereby we obtain the essential nutrients and use them to make many other substances our bodies need.营养可定义为人们赖以获得的必须营养素，并利用这些营养素来制造人体所需的其他物质的过程。
4.The term good nutrition implies that we are obtaining from our food all of the essential nutrients in the amounts needed to keep our bodies functioning and to maintain optimum health. A very simplified definition of good nutrition might be" eating the right foods in the right amounts.”由此可见，唯有营养素才是真正必需的，而正常提供营养素的则是食物。
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The food technologist can usually recognize fats when he sees them because they are quite different both in their physical properties and in their chemical composition from the other two main food constituents, carbohydrate and protein.
评估机构必将倾向于考虑转基因食品对人体蛋白比率的影响以确保其符合发展中与发达国家的不同需求
考虑到发展国家和发展中国家的不同需求，评估将越加考虑转基因食品在总营养状况方面的影响。
5.So far there is no report on any adverse effects on humans resulting from the consumption of foods produced by application of recombinant DNA techniques .
应该标注“潜在安全问题”（如，存在成分实质区别，含有致敏蛋白），还是标注“正常消费信息之间”，这之间存在分歧。
我们必须把这两类标准区分开来，一类是潜在安全问题的标准（如物质组成的不同，引起的过敏性蛋白），一类是建立在消费者知情权的标准上。
本文描述了世界卫生组在以下几个方面的作用：评估由DNA重组技术生产的食品安全性的发展原则，建议与指导方针，以及评估未来的挑战纲要。
本文描述了WHO在关于DNA重组技术生产的食品的安全评估的原则，推荐和指导方针的建立发展中的重要作用，同时概述将来的活动中可能的困难和挑战。
8.WHO/FAO were among the first organizations to elaborate the general principles underlying the safety assessment of foods produced by using recombinant DNA techniques .
当食品科学工作者看到脂肪时，通常可以确认他们，因为不论在物理性质和化学组成上，脂肪都与另外两种主要食品组成成分（碳水化合物和蛋白质）不同。
Computer control is the current by-word in fermentation technology and will soon reach the point where you dare not admit that your fermenters are not coupled to a computer; unfortunately, amidst the improvements this brings, we are beginning to see cases of the old dogma ‘instruments prevent creative thinking’
然而，我们期望在下一代基因作物（如营养价值的提高，功能性作物）得到好处的同时也会带来一些新的问题（如复杂的代谢变化，对总营养状况的明显影响)，因此会对食品安全评估带来新的挑战
7.This paper describes the role of WHO in the development of principles , recommendations and guidelines for the safety assessment of foods produced by means of recombinant DNA techniques and outlines the challenges to be met in future activities .
绪论：
This is particularly important for a food engineer since the commercial advantages of an optimal controlled process include it can provide better product quality and lower costs compared with an uncontrolled process.
WHO和FAO是首批进行详述评估应用DNA重组技术生产的食品安全性的一般原则的组织机构。
WHO和FAO是首批对应用DNA重组技术生产食品安全评估的总的原则作审批的组织。
9.This concept is used to identify similarities and differences between the GM food and a comparator with a history of safe use which subsequently guides the safety assessment process
在真空状态下的发酵罐，尤其是空罐，在罐外气压作用下，可能发生形变，但是避免罐压低于空气压力的原因，还是环境中未经灭菌的空气可能会从发酵罐及其管件焊缝的任何细微缝隙或通过连接件以及阀门吸入罐内。
Lesson4
1.WHO has been actively participating in the development of principles and recommendation for the safety assessment of GM foods derived from genetically modified organisms (GMO).
尽管这样，构成转基因食品的安全评估的基础的科学原则已达成一致。
12.WHO plays a central role in the Codex Alimentarius Commission , an intergovernmental body set up to establish international standards on foods .
世界各国关于超出现行传统食品法规所要求的转基因食品额外的监管有不同的观点。
11.Nevertheless, a general consensus has been developed on the major scientific principles underlying the safety assessment of GM foods.
计算机控制是现代发酵技术中的常用语，并且很快你就不能容忍你的发酵罐没有被连接到计算机。不幸的是，在这过程中我们将开始看到旧的教条主义“仪器阻碍看创造性思维”
It is possible,particularly in the case of an empty fermenter,that a vessel under vaccum could be deformed by the external air pressure,but the main reason for avoiding pressure below atmospheric within the fermenter is that the non-sterile(未经灭菌的)air of environment could be drawn through any small leak in the welded seams of the vessel or pipeline,or through joints or valves.
该实质等同的概念被用于鉴定转基因食品和一般食品的相同和区别之处，指导此后评估的程序。
这个概念（“物质平衡”）用来鉴定在转基因食品和有安全使用历史的参照食品间的相似和不同及其将会进一步指导安全评估的进程。
10.There are different philosophies worldwide regarding the need for additional regulatory oversight on GM foods going beyond the requirements of laws wxisting for traditional foods
我方准备把高蛋白玉米作为下一代的转基因食品，并将打破功能食品与螺旋杆菌间定义上的灰色界限
下一代转基因食品将是营养价值得到提高的作物，因此它跨越了功能食品和营养食品的界限。
4.Evaluations will increasingly have to consider the impact of a GM food on the overall nutritional status taking into account the different needs in developed and developing countries .
到目前为止，人类消费转基因食品的危害还未见报道。
到目前为止，还没有文献报道有关人类因为消费应用重组DNA技术所生产的食品而产生不良影响。
6.Howevt generation of GM crops (improved nutritional value , functional foods ) will result in new issues (complex metabolic changes , significant impact om ocerall nutritional status ) and thus will pose new challenges in terms of food safety assessment .
WHO 在食品法典委员会起中心作用，一个由政府间建立的用来制定国际间食品水平的机构。
13.It must be differentiated between labeling base on potential safety issues (e. g. substantial differences in composition, presence of an allergenic protein) and labeling based on the sole “right of the consumer on information”.