食品专业英语课件lesson 13

Lesson 10 Basic Steps in Vegetables’ Canning

一、new words

Can n.罐头（美），tin (英)

canned adj.罐头（食品）的，罐装的

a)canned food 罐头食品

b)canned beer 罐装啤酒

canning n.罐装，罐藏，罐头制造

c)canning industry 罐头工业

cannery n.罐头（食品）厂

acid n.酸味adj酸的，酸味的，酸性的

acidic adj酸的

acidic material酸性物质

acidify v.酸化

acidity n 酸性，酸度，酸味

acidity test 酸度测定

heat-resistant 耐热的

heat –stable amylases

spray n. 喷淋，喷雾，飞沫v.喷射，喷溅

high-pressure spray 高压喷雾

agitating screen 振动筛

revolving screen 旋转筛

blast一阵（风），一股（气流）

air blast 空气流

flotation n.浮选

trimming n.修整，清理焊缝

off-color adj. 颜色不佳的，变色的

mash v.捣碎

blanching n.热烫，漂白，预煮

note n.香韵，香调，香型

brine n.盐水

atmosphere [atm.] 大气压

atmospheric 大气的，常压的

seam 接缝，线缝；缝合，接合

filled can 实罐，装有内容物的罐头

bulging n. 胀罐，胖听

paneling n.瘪罐

double seam 三片罐，二道卷封罐

curl of the lid

flange of the can

closing machine 封罐机，压盖机

tin plate n.镀锡铁皮，马口铁

thread 螺纹

lug cap 四旋（瓶）盖

retort n.（立式）杀菌锅，杀菌釜

cooker n.蒸煮机，炊具

whole-kernel n.全粒

batch-process n. 批加工

hydrostatic cooker 水静压式杀菌机

flame sterilization 火焰蒸煮

labeling machine 贴标机

Food preservation

Freezing

Canning

Drying and semi-drying

Fermentation

Pickling 腌制

二、text

Basic Steps in Vegetables’Canning

Vegetables differ from fruits in chemical composition and therefore require different canning conditions.

differ from v. 不同

different adj.不同的

The acidity of vegetables is generally much lower (i.e., high pH value) than that of fruits, and they may contain more heat-resistant soil organisms than fruits.

heat-resistant soil organisms耐热土壤生物

In addition, many vegetables require more cooking than fruits to develop their most desirable flavor and texture.

For these reasons canned vegetables in general require more severe processing than fruits.

What are these reasons?

Basic Steps in Vegetables’Canning

1.Preparation of vegetables

2.Blanching

3.Filling

4.Ensuring vacuum in containers

5.Sealing

6.Heat processing

7.Cooling

beling and Casing

Preparation of vegetables

1、thorough cleaning of raw food material

by high-pressure sprays of water

by strong-flowing streams of water

drycleaning treatment

mechanically removed by revolving or agitating screens

by strong air blasts

2、sorted for size and maturity

sorted for size: