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
48
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/2808492.html
相关试题推荐
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearchersattheLondonSchoolofHygieneandTropicalMedicinepublished
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
随机试题
“第七届中国智能车未来挑战赛”日前在常熟展开。常熟也成为连续三次举办我国无人驾驶智能车辆发展水平比赛的城市。此次比赛主要测试无人驾驶智能车辆完
Arecentpollonuniversitystudents’self-disciplineshowsthatonly30%of
目前我国"血脂异常防治建议"中制定的总胆醇合适水平应小于或等于A.5.72mmo
10个月女孩,母乳喂养,未添加辅食,近2个月出现面黄、食欲下降,查体提示小细胞低
影响语音知觉的因素包括A.语音相似性 B.语音强度 C.语境
慢性萎缩性胃炎A.胃黏膜腺体萎缩、胃酸缺乏 B.胃黏膜浅层淋巴细胞浸润 C.
对“激素依赖型”和“激素抵抗型”肾病综合征的治疗应采用 A.加大糖皮质激素用量
在运输生产活动中,以集装单元为基础进行装卸、运输、保管等作业的运输组织方式是(
某高速公路有一座单跨拱桥,其净跨径为10,计算跨径为l,净矢高为f0,计算矢高为
甲计划将其与乙已签订的合同进行变更,下面说法正确的是()。A.合同的变更是对原合
最新回复
(
0
)