The essence of deacetylation reaction of chitin was the hydrolysis of N-alkyl ethanamide.
摘要甲质脱酰化反应其本质是N-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.
和蛄为原料分别采用EDTA法和盐酸法制备了甲素和聚糖。
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Chitin is the second-most abundant organic material on earth.
几丁质地球上第二丰富有机材料。
And these special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊纳米结构排列使甲壳外骨骼相对于它们重量惊人地坚固。
Chitin is molecularly similar to the cellulose we find in plants, but it's harder and more stable.
甲壳在分子上与我们在植物中发现相似,但它更硬、更稳定。
But insects and crustaceans build exoskeletons made from chains of modified sugars called chitin.
但昆虫和甲壳类动物外骨骼被称为甲壳修饰糖链制成。
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,所有几丁质转变成壳聚糖,这时候 The Shellworks 登场。
The outer layer of a beetle's body is made of this super stiff polymer called chitin.
甲虫身体外层种叫做甲壳超硬聚合物制成。
Fungi support their cell walls with a starchy polymer called chitin.
真菌用种叫做几丁质淀粉质聚合物来支撑它们细胞壁。
And chitin is also the basis for arthropod exoskeletons.
几丁质也节肢动物外骨骼基础。
These special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊纳米结构排列使几丁质外骨骼相对于它们重量来说非常坚韧。
Lobsters, crabs, scorpions and spiders are other animals with an exoskeleton made of chitin.
龙虾、螃蟹、蝎子和蜘蛛其他具有几丁质制成外骨骼动物。
18. And here's where chitin comes in.
这就角来源。
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壳,你会看到甲壳晶体像胶合板堆样排列。
These are made of a naturally occurring polymer called chitin, which is a polymer you find in most insect and crustacean exoskeletons.
这些鳞片种叫做甲壳天然聚合物构成,而在大多数昆虫和甲壳类动物外骨骼中都能找到这种甲壳聚合物。
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种叫做角物质。
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30%几丁质,但龙虾在餐厅里食用。
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共同点,因为它们几丁质构建自己细胞。那种材料使用其质地与众不同。
They jumped ship, leaving the chitin rafts behind to be full-time photosynthetic drifters.
他们跳船,留下几丁质筏,成为全职光合作用漂流者。
Plus, they were covered from their rounded heads to their many segmented feet in an exoskeleton made of calcite and chitin.
此外,它们从圆圆脑袋到许多分段脚都被方解石和几丁质制成外骨骼所覆盖。
A piece of chocolate, you are allowed bits of insect chitin in the chocolate because they do fall in, they get everywhere.
块巧克力, 你可以在巧克力中加入些昆虫几丁质, 因为它们确实会掉进去,到处都。
Believe it or not, the only other place chitin is found in abundance is in the exoskeletons of insects, crabs, and such!
信不信你,唯能发现丰富角其他地方只有昆虫、螃蟹之类外骨骼中。
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