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Title: Critical Overview of Biomass Feedstocks as Sustainable Substrates for the Production of Polyhydroxybutyrate (PHB)
Authors: Sirohi, R
Pandey, JP
Gaur, VK
Gnansounou, E
Sindhu, R
Keywords: biopolymer
industrial wastes
strain improvement
Issue Date: Sep-2020
Publisher: Elsevier
Citation: Bioresource Technology;311:123536.
Abstract: Polyhydroxybutyrates (PHBs) are a class of biopolymers produced by different microbial species and are biodegradable and biocompatible in nature as opposed to petrochemically derived plastics. PHBs have advanced applications in medical sector, packaging industries, nanotechnology and agriculture, among others. PHB is produced using various feedstocks such as glycerol, dairy wastes, agro-industrial wastes, food industry waste and sugars. Current focus on PHB research has been primarily on reducing the cost of production and, on downstream processing to isolate PHB from cells. Recent advancements to improve the productivity and quality of PHB include genetic modification of producer strain and modification of PHB by blending to develop desirable properties suited to diversified applications. Selection of feedstock plays a critical role in determining the economic feasibility and sustainability of the process. This review provides a bird’s eye view of the suitability of different waste resources for producing polyhydroxybutyrate; providing state-of the art information and analysis.
Appears in Collections:2020

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