生物塑料
羟基烷酸
背景(考古学)
制浆造纸工业
持续性
生化工程
环境科学
生产(经济)
生物可分解塑胶
环境友好型
废物管理
生物技术
工程类
生物
古生物学
经济
宏观经济学
细菌
遗传学
生态学
作者
Fady Abdelmalek,Heba Khairy,Aïda M. Farag,Samia S. Omar
标识
DOI:10.1016/j.ijbiomac.2020.04.076
摘要
Plastic accumulation has destructive environmental impacts, so the world needs eco-friendly plastic alternatives. Within this context, polyhydroxyalkanoates (PHAs) appear to be real alternatives to the chemical plastics because they are biocompatible and biodegradable. Despite its similar properties to common plastics, PHAs use is still hampered by higher production costs. PHAs are produced by high density fed-batch cultivation, activated sludge, microbial consortia and continuous substrate supply, and a major cost associated with their production is the carbon source used for bacterial fermentation. Therefore, novel carbon sources have been studied for PHA production including, macro algae, peanut oil, crude glycerol and whey. PHAs were applied in myriad fields such as wood production, food packaging, 3D painting, cancer detection, treating ulcers as well as several agricultural and therapeutic applications. In this review, current knowledge of methods and novel carbon sources enhance the sustainability and reliability of PHAs in the prospective future.
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