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2018-09-12150碟子
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2018-09-13一次性环保餐具-碟子
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2018-09-14一次性可降解餐具-270ml碗
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2018-09-14一次性餐具-叉子
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2018-09-14环保餐盒
玉米淀粉颗粒的层状结构和微孔结构
玉米淀粉颗粒的层状结构和微孔结构是怎样的？为了让大家更好更多的了解该产品，此问题应该先了解好，下面小编为您讲解吧。
What is the layered structure and microporous structure of corn starch particles? In order to let everyone know more about the product, this problem should be understood first. The following editor will explain it for you.
用光学显微镜观察淀粉颗粒，大多情况下可以看到层状结构，在它的有脐点。淀粉颗粒是以脐点为由球晶按一定规则排列成放射状而构成。
When starch particles are observed with an optical microscope, the layered structure can be seen in most cases, and there is an umbilicus in it. Starch granules are composed of spherulites arranged radially according to certain rules with umbilicus.
而层状结构是由于淀粉颗粒内部折射率之差，或是由于淀粉颗粒中淀粉分子的装填方法、装填密度之差而产生的。
The layered structure is caused by the difference in the refractive index inside the starch particles, or by the difference in the filling method and density of starch molecules in the starch particles.
到目前为止，人们对淀粉颗粒的结构己经有了一个基本的认识。淀粉的很多性质可以从淀粉颗粒的结构中得到解释。但是还有许多重要的问题没有解决。
So far, people have a basic understanding of the structure of starch granules. Many properties of starch can be explained from the structure of starch granules. However, there are still many important problems to be solved.
如淀粉颗粒结构中直链淀粉分子所处的位置和作用以及怎样解释这些双螺旋结构形成整个淀粉颗粒等。
Such as the position and role of amylose molecules in the structure of starch granules and how to explain that these double helix structures form the whole starch granules.
玉米淀粉颗粒在应用领域，由于化学变性所用化学试剂品种及取代度的限制，目前的化学变性技术的发展方向只有进行定位化学改性。
In the field of application of corn starch granules, due to the limitations of chemical reagents used for chemical denaturation and the degree of substitution, the current development direction of chemical denaturation technology is only to carry out positioning chemical modification.
也即控制取代基在淀粉颗粒的位置，控制取代基对直链淀粉及支链淀粉的相对分布及取代基在单个分子上的定位。
That is, to control the position of substituents in starch particles, the relative distribution of substituents to amylose and amylopectin, and the localization of substituents on a single molecule.
如上所述，由于玉米淀粉颗粒的微孔性质，淀粉与化学试剂接触表面积是相当大的，这也为定位取代提供可能。
As mentioned above, due to the microporous nature of corn starch particles, the contact surface area between starch and chemical reagents is quite large, which also provides the possibility of positional substitution.
但到目前还没有一种可以测定取代基位置的仪器或方法，所以实现定位化学改性还有很多工作有待于淀粉科学工作者共同努力。关注我们https://www.qiluxinke.com，了解更多产品信息！
However, up to now, there is no instrument or method that can determine the position of substituents, so there is still a lot of work to be done to achieve localized chemical modification by starch scientists. Follow us https://www.qiluxinke.com Yes, learn more about our products!
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