Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
Department of Mathematics, COMSATS University Islamabad Lahore Campus, Lahore 54000, Pakistan.
Int J Biol Macromol. 2019 Feb 1;122:969-996. doi: 10.1016/j.ijbiomac.2018.10.092. Epub 2018 Oct 18.
Maize or corn is considered as very distinctive plant. Corn having better capability of utilizing sun light, is a noble way of getting a natural polymer known as starch. Amylopectin and amylase composition in the starch firmly affects the properties of the polysaccharide. Despite of application of CS as food for living being including the human and animals it has many other applications in industry. No doubt it has many flaws which can be controlled by adopting different modifications. Nowadays bio-degradable polymers are useful which are produced by corn starch. Starch based plastics and composites are not cheap but produce less waste which ultimately reduces the plastic pollution. Different types of natural and synthetic polymers and nano clay can be blended with starch. Some of these polymers are tailor made for some special purposes. Natural polymers like chitosan, cellulose, gelatin, collagen, zein, alginate, Kappaphycus alvarezii seaweed, various amino acids, and synthetic polymers like polybutylene, polyacrylic acid, polyethylene, polyvinyl chloride, polyvinyl alcohol, polycaprolactone, and acrylic acid are utilized to modify starch to yield starch base completely bio-decomposable polymers. These biopolymers have the capability to substitute the petroleum based polymers, and can be used for different environmental, industrial and medical applications.
玉米或玉米被认为是一种非常独特的植物。玉米具有更好的利用阳光的能力,是一种获得天然聚合物淀粉的高贵方法。淀粉中的支链淀粉和淀粉酶组成物牢固地影响多糖的性质。尽管玉米淀粉被应用于包括人类和动物在内的生物的食物中,但它在工业中有许多其他应用。毫无疑问,它有许多缺陷,可以通过采用不同的改性来控制。如今,由玉米淀粉生产的生物可降解聚合物非常有用。基于淀粉的塑料和复合材料并不便宜,但产生的废物较少,最终减少了塑料污染。不同类型的天然和合成聚合物和纳米粘土可以与淀粉混合。其中一些聚合物是为某些特殊用途量身定制的。天然聚合物如壳聚糖、纤维素、明胶、胶原、玉米蛋白、藻酸盐、卡拉胶、各种氨基酸,以及合成聚合物如聚丁烯、聚丙烯酸、聚乙烯、聚氯乙烯、聚乙烯醇、聚己内酯和丙烯酸,用于修饰淀粉,以生产完全可生物降解的淀粉基聚合物。这些生物聚合物具有替代石油基聚合物的能力,并可用于不同的环境、工业和医疗应用。