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
45
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] 【B7】
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
reversed
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2806918.html
相关试题推荐
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
It’sreportedbysomescientiststhatphysicalsurroundings______people’semotio
Howmanybookshasthewriterwrittensofar?[br][originaltext]Host:AndIwa
Aristotledefinedafriendas"asinglesouldwellingintwobodies".Member
一家建筑工程公司准备裁员。下列人员中不得解除劳动合同的有()。A:女职工赵某,
白血病联合化疗时应注意哪些事项A.当粒细胞
患者慢性肾炎10余年,近日浮肿,头晕,乏力,呕吐,尿少。查体:血压150/100
如果供应链的各个节点企业只根据来自相邻的下游企业的需求信息进行生产或供应决策,需
某建筑高度24m的二级耐火等级办公建筑与建筑高度为32.5m的住宅建筑相邻,相邻
学习“直角角形是一种特殊的三角形”,这种学习属于() A.词汇学习B.符号学
某上市公司2018年的营业额为15亿元,息税前利润为3.2亿元,公司的资产总额为
最新回复
(
0
)