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
62
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] 【B1】
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
the same substances
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2806912.html
相关试题推荐
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
[originaltext]W:There’sbeenalotoffocusonthefundingincreasethatwasr
IfyouhappentomeetJamesinVancouver,______thebooktohim.A、giveB、yougi
股权投资基金要求目标公司通过保密协议或其他方式,确保其董事、高管和其他关键员工不
某7层写字楼建造于20世纪80年代,为钢筋混凝土框架结构,设楼梯间2个,内外墙体
双重化的两套保护及其相关设备(电子式互感器、MU、智能终端、网络设备、跳闸线圈
已知某银行不良贷款余额占总贷款余额的30%,另外,已知该银行的拨备覆盖率为50%
共用题干 一般资料:求助者,男性,24岁,在读研究生。案例介绍:求助者研究生入
不能用玻璃和塑料容器作密封贮藏的药材是A.高温下易变质的药材 B.易变色药材
毒物种类很多,中毒方式各异,虽然有的毒物中毒尚无特效的解毒药,但救治原则基本相同
结肠破裂修补术后5天,病人血钠136mmol/L,血钾6.8mmol/L,血PH
最新回复
(
0
)