The essence of deacetylation reaction of chitin was the hydrolysis of N-alkyl ethanamide.
摘质脱乙酰化反应其本质是N-烷基乙酰胺水解。
Chitin and chitosan have been prepared by the methods of EDTA and HCl with the shell of shrimp and Squilla Oratoria as raw materials.
以虾虾蛄为原料分别采用EDTA法酸法制备了素聚糖。
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And these special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊的纳米结构排列使甲壳素外骨骼相对于它们的重量惊人。
But insects and crustaceans build exoskeletons made from chains of modified sugars called chitin.
但是昆虫和甲壳类动物的外骨骼是由被称为甲壳素的修饰糖链制成的。
Chitin is the second-most abundant organic material on earth.
几丁质是球上第二丰富的有机材料。
Through chemical processes, all that chitin can be turned into chitosan, which is where The Shellworks comes in.
经过化学处理后,所有的几丁质转变成壳聚糖,这时候 The Shellworks 登场。
Chitin is molecularly similar to the cellulose we find in plants, but it's harder and more stable.
甲壳素在分子上与我们在植物中发现的纤维素相似,但它更硬、更稳定。
The outer layer of a beetle's body is made of this super stiff polymer called chitin.
甲虫身体的外层是由一种叫做甲壳素的超硬聚合物制成的。
These special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊的纳米结构排列使得几丁质外骨骼异常,重量。
But it's actually made up of another chemical called chitin.
但实际上它是由另一种化学物质——几丁质构成的。
So chitin for example in insects or cellulose is plants is structure.
例如,昆虫中的几丁质或植物中的纤维素都是结构物质。
Lobsters, crabs, scorpions and spiders are other animals with an exoskeleton made of chitin.
龙虾、螃蟹、蝎子和蜘蛛是其他具有由几丁质制成的外骨骼的动物。
And that's thanks in part to a substance in their cell walls called chitin.
而这某种程度上要感谢它们细胞壁中一种叫做角素的物质。
18. And here's where chitin comes in.
这就是角素的来源。
These are made of a naturally occurring polymer called chitin, which is a polymer you find in most insect and crustacean exoskeletons.
这些鳞片是由一种叫做甲壳素的天然聚合物构成的,而在大多数昆虫和甲壳类动物的外骨骼中都能找到这种甲壳素的聚合物。
If you were to zoom into a lobster's shell on the microscopic scale you'd see chitin crystals arranged like stacks of plywood.
如果你在微观尺度上放大龙虾的壳,你会看到甲壳素晶体像胶合板堆一样排列。
They jumped ship, leaving the chitin rafts behind to be full-time photosynthetic drifters.
他们跳船了,留下了几丁质筏子,变成了全职的光合作用漂流者。
By weight, chitin accounts for about 30% of the shell, and it's also the case that with lobsters, they're eaten out the restaurant.
重量上,龙虾壳的30%是几丁质,但是龙虾是在餐厅里食用的。
Structurally they have more in common with animals in that they build their cells from chitin, a material that gives them their distinctive texture.
从结构上说,它们与动物有着更多的共同点,因为它们是几丁质构建自己的细胞的。那种材料使用其质与众不同。
Plus, they were covered from their rounded heads to their many segmented feet in an exoskeleton made of calcite and chitin.
此外,它们从圆圆的头部到多节的脚部都覆盖着由方解石和几丁质构成的外骨骼。
A piece of chocolate, you are allowed bits of insect chitin in the chocolate because they do fall in, they get everywhere.
一块巧克力, 你可以在巧克力中加入一些昆虫几丁质, 因为它们确实会掉进去,到处都是。
Believe it or not, the only other place chitin is found in abundance is in the exoskeletons of insects, crabs, and such!
信不信由你,唯一能发现丰富的角素的其他方只有昆虫、螃蟹之类的外骨骼中。
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