首页
登录
职称英语
Why does cream go bad faster than butter? Some researchers think that it com
Why does cream go bad faster than butter? Some researchers think that it com
游客
2023-07-04
23
管理
问题
Why does cream go bad faster than butter? Some researchers think that it comes down to the structure of the food, not its chemical composition — a finding that could help rid some processed foods of chemical preservatives.
Cream and butter contain much【B1】______. so why cream should sour much faster has been a【B2】______.
Both are emulsions — tiny globules of one liquid evenly【B3】______throughout another. The difference lies in what’s in the globules and what’s in the surrounding. In cream, fatty globules【B4】______in a sea of water. In butter, globules of a watery【B5】______are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the【B6】______. This means that in cream, the bacteria are free to grow throughout the mixture. When the situation is【B7】______. the bacteria are locked away in【B8】______buried deep in the sea of fat. Trapped in this way,【B9】______colonies cannot spread and rapidly run out of nutrients. They also slowly poison themselves with their waste products.
In butter, there is a self-limiting system which stops the bacteria growing. The researchers are
already working with food companies keen to see if their products can be made【B10】______bacterial attack through alterations to the food’s structure. They believe that it will be possible to make the emulsions used in salad cream, for instance, more like that in butter. The key will be to do this while keeping the salad cream liquid and not turning it into a solid lump. [br] 【B4】
Why does cream go bad faster than butter? Some researchers think that it comes down to the structure of the food, not its chemical composition — a finding that could help rid some processed foods of chemical preservatives.
Cream and butter contain much(26)the same substances, so why cream should sour much faster has been a(27)mystery. Both are emulsions — tiny globules of one liquid evenly(28)distributed throughout another. The difference lies in what’s in the globules and what’s in the surrounding. In cream, fatty globules(29)drift about in a sea of water. In butter, globules of a watery(30)solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the(31)mixture. This means that in cream, the bacteria are free to grow throughout the mixture. When the situation is(32)reversed, the bacteria are locked away in(33)compartments buried deep in the sea of fat. Trapped in this way,(34)individual colonies cannot spread and rapidly run out of nutrients. They also slowly poison themselves with their waste products.
In butter, there is a self-limiting system which stops the bacteria growing. The researchers are already working with food companies keen to see if their products can be made(35)resistant to bacterial attack through alterations to the food’s structure. They believe that it will be possible to make the emulsions used in salad cream, for instance, more like that in butter. The key will be to do this while keeping the salad cream liquid and not turning it into a solid lump.
选项
答案
drift about
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2806915.html
相关试题推荐
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
WhichofthefollowingsentencesisINCORRECT?A、TheEnglishteachercamein,boo
HowtoBeEffectiveReaders?I.Whatisreading?1)Ame
高层建筑内设置消防水泵房,以下要求错误的是()。A.应采用耐火极限不低于2h
信息系统设备安全是信息系统安全的重要内容,其中设备的()是指设备在一定时间内不
A.蒲黄B.鹿角胶C.钩藤D.沉香E.鱼腥草需要冲服的药物是
一般检测是用红外热像仪对电气设备表面温度分布进行全方位的巡视性检测。
房地产估价报告中,估价结果报告是非常重要的一项内容。 房地产抵押估价结果报告中
关于绩效考评的效标,下列说法不正确的是( )A.效标即指评价员工绩效的指标及标
在确定控制措施或考虑改变现行控制措施时,可考虑按如下顺序选择风险控制方法的是(
最新回复
(
0
)