Department of Post Harvest Process and Food Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India.
Department of Post Harvest Process and Food Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India.
Bioresour Technol. 2020 Sep;311:123536. doi: 10.1016/j.biortech.2020.123536. Epub 2020 May 18.
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.
聚羟基丁酸酯（PHB）是由不同微生物物种产生的一类生物聚合物，与石油化工衍生塑料相比，具有可生物降解和生物相容性。PHB 在医学领域、包装工业、纳米技术和农业等领域有先进的应用。PHB 可使用各种原料生产，如甘油、奶制品废物、农业工业废物、食品工业废物和糖。目前 PHB 研究的重点主要集中在降低生产成本和下游加工以从细胞中分离 PHB 上。最近的进展包括通过遗传修饰生产菌株和通过共混来改性 PHB 以开发适合各种应用的理想特性，从而提高 PHB 的生产力和质量。原料的选择在确定该过程的经济可行性和可持续性方面起着至关重要的作用。本文综述了不同废物资源生产聚羟基丁酸酯的适宜性，提供了最新的信息和分析。
