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
50
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] 【B3】
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
distributed
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2806914.html
相关试题推荐
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
A.selflessB.builtC.complexD.butE.executeF.sustainedG.cheate
AlthoughHarryStackSullivanisoneofthemostinfluentialsocialscientistso
TheRoleoftheOceaninControllingClimateP1:Computermodelsareoneofthe
Humourisprobablythehardestcommoditytoexport.Jokesthatmakeonecou
[originaltext](RINGRINGSOUNDOFPHONEBEINGPICKEDUP.)M:Hello,CampusDail
Protectingjust42sitesacrossAsia,rangingfromtemperateforeststotrop
初产妇,26岁。足月临产,进入第二产程后,官缩规律有力,宫缩因疼痛加剧,产妇烦躁
"宁可终身不饮酒,不可三餐无饮茶",茶文化在中国源远流长,下面对茶的解释有误的一
经济资本主要用于规避银行的()。A.非预期损失 B.预期损失 C.大规模损
(2020年真题)狮子和老虎之间爆发了一场激烈的战争,到了最后,两败俱伤。狮子快
最新回复
(
0
)