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
2023-07-08
59
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] 【B2】
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)compart-ments 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
mystery
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2817655.html
相关试题推荐
[originaltext]Intheearly1950s,researchersfoundthatpeoplescoredlowe
[originaltext]Intheearly1950s,researchersfoundthatpeoplescoredlowe
Sometimesthebiggestfindsarethesmallestfinds.Researchersexamininga(
Sometimesthebiggestfindsarethesmallestfinds.Researchersexamininga(
Sometimesthebiggestfindsarethesmallestfinds.Researchersexamininga(
Sometimesthebiggestfindsarethesmallestfinds.Researchersexamininga(
Sometimesthebiggestfindsarethesmallestfinds.Researchersexamininga(
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
Nowadays,traditionalChineseculturalelementscouldbefoundinmanydiffe
HistimeintheArmymusthavetaughthimtokeepthecontentsofhislifeingo
Inthisprivateschool,adentist______thepupils’teethtwiceaweek.A、injures
f(x)是以T为周期的可微函数,则下列函数重以T为周期的函数是()
患者,男,25岁。皮肤、白睛色黄明润,小便色黄如浓茶,大便秘结,舌苔黄腻,脉滑数
35岁已婚女性,G3P1,月经规律无痛经,人工流产后2年来经常下腹部隐痛、腰酸胀
以“梨花院落溶溶月”为上句,下面四个句子中哪个能作为下句与它组成对偶句?选出最恰
在双侧限有偏移的情况下,过程能力指数的确定具有()特点。 A.长期性B.短
简述职业安全卫生预算编制程序。
家住在海沂市A区的甲(户籍在大明市B区,住所地在海沂市A区),因急需一笔资金进口
最新回复
(
0
)