h*0
2 楼
从生化书看到氨基酸分为带正电、负电、不带电荷和非极性氨基酸4类
请教板油们不带电荷和非极性的区别在哪里?
谢谢。
请教板油们不带电荷和非极性的区别在哪里?
谢谢。
E*A
3 楼
进来学习
s*n
6 楼
应该是charge (+/-), polar and non-polar吧?
l*2
9 楼
我也不清楚,我查了一下发现
蜡纸 英文是waxed paper; stencil paper
就是表面涂蜡的纸。常用于包裹东西防潮
烘培纸 英文是parchment paper
作用是用在烘烤时候防止粘连
英文解释
waxed paper
Paper that has been impregnated with wax to make it waterproof or
greaseproof, used esp. in cooking and the wrapping of foodstuffs
parchment paper
also known as baking parchment paper, is a cellulose-based paper that is
used as a disposable non-stick surface intended for use in baking.
我感觉蜡纸除了防粘外还可以防水。
但高温加热的烘培纸比蜡纸更好。
大家再讨论
蜡纸 英文是waxed paper; stencil paper
就是表面涂蜡的纸。常用于包裹东西防潮
烘培纸 英文是parchment paper
作用是用在烘烤时候防止粘连
英文解释
waxed paper
Paper that has been impregnated with wax to make it waterproof or
greaseproof, used esp. in cooking and the wrapping of foodstuffs
parchment paper
also known as baking parchment paper, is a cellulose-based paper that is
used as a disposable non-stick surface intended for use in baking.
我感觉蜡纸除了防粘外还可以防水。
但高温加热的烘培纸比蜡纸更好。
大家再讨论
l*m
12 楼
One guy has already explained.
Serine is a polar residue. It has OH group so it can interact with water.
It is hydrophilic and can be outside
Phenylalaine is a nonpolar residue. It has benzene ring so it can not
interact with water. It is hydrophobic and usually in the hydrophobic core
inside the protein.
【在 h*******0 的大作中提到】
: 恩
: 请教一下,不带电荷和非极性在化学上意思有什么区别?
: 是不是都是疏水性很强?还有没有其他性质?
: 是不是这类氨基酸都倾向于埋在蛋白质结构的内部?
Serine is a polar residue. It has OH group so it can interact with water.
It is hydrophilic and can be outside
Phenylalaine is a nonpolar residue. It has benzene ring so it can not
interact with water. It is hydrophobic and usually in the hydrophobic core
inside the protein.
【在 h*******0 的大作中提到】
: 恩
: 请教一下,不带电荷和非极性在化学上意思有什么区别?
: 是不是都是疏水性很强?还有没有其他性质?
: 是不是这类氨基酸都倾向于埋在蛋白质结构的内部?
s*i
17 楼
注意燃点!
烘培用Parchment Paper,说是最高温度到425F,不过我做蝴蝶酥用400F烤完后看看好
像就不太行。
包食物用Wax Paper,包个三明治啊,象融化的糖之类也能用蜡纸包好等其冷却。
烘培用Parchment Paper,说是最高温度到425F,不过我做蝴蝶酥用400F烤完后看看好
像就不太行。
包食物用Wax Paper,包个三明治啊,象融化的糖之类也能用蜡纸包好等其冷却。
h*0
20 楼
不带电荷的氨基酸,在什么条件下可以带电呢?
b*g
23 楼
今天刚看了一个cooking节目说wax paper不能进烤箱
h*0
24 楼
Thanks
也就是说极性氨基酸都是环境pH值决定它自身的电荷性质
也就是说极性氨基酸都是环境pH值决定它自身的电荷性质
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