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
2024-02-08
27
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] 【B8】
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
compartments
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3433927.html
相关试题推荐
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
随机试题
孔子(30nfucius),伟大的教育家和思想家,生于公元前551年。孔子30岁开始讲学,弟子来自社会各阶层。他曾亲身执教3000多名弟子。72贤就在
Thereisvirtuallynolimittohowonecanservecommunityinterests,froms
消防水泵房应设置起重设施,并应符合()等。A.水泵重量为0.5-3t时,应设置
效益性是指成本会计在对信息的收集和处理时应考虑其发生的成本和产生的效益。()
坐标正算中,下列何项表达了横坐标增量?( )
简述大学生人际交往的特点
决定腺垂体促甲状腺激素的主要因素是A、糖皮质激素 B、生长激素 C、T3和T
( )鼓励应聘者从不同角度思考问题。A.举例式提问 B.封闭式提问 C.假
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
(2018年真题)个人网上银行具体业务功能不包括()。A.个人余额查询 B.
最新回复
(
0
)