生物降解包装材料聚羟基脂肪酸酯的工艺研究进展  

Research Progress on Production Process of Polyhydroxyalkanoates as Biodegradable Packaging Material

作　　者：田强运 裴树昆 马晓军[1,3] 李冬娜 TIAN Qiang-yun;PEI Shu-kun;MA Xiao-jun;LI Dong-na(College of Light Industry Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China;Huiyuan Printing and Packaging Technology(Tianjin)Co.,Ltd.,Tianjin 300450,China;School ofMaterials and Environmental Engineering,Fujian Polytechnic Normal University,Fujian Fuqing 350300,China)

机构地区：[1]天津科技大学轻工科学与工程学院,天津300457 [2]汇源印刷包装科技(天津)股份有限公司,天津300450 [3]福建技术师范学院材料与环境工程学院,福建福清350300

出　　处：《包装工程》2023年第7期63-75,共13页Packaging Engineering

基　　金：天津市大学生创新训练项目(202210057002);福建省自然科学基金(2022J01981)。

摘　　要：目的高昂的生产成本制约着绿色包装材料聚羟基脂肪酸酯(Polyhydroxyalkanoates,PHAs)的发展,通过对其生物合成过程中的碳源底物、影响因素的研究,实现其低成本、高效率合成以及规模化应用。方法归纳分析现阶段国内外PHAs的研究现状和成果,介绍合成PHAs的碳源底物、微生物培养方式以及在合成阶段溶解氧(DO)、pH值、碳氮比等因素对PHAs合成效率的影响。结论廉价的生物质资源、合理的碳氮比、多批次好氧/厌氧培养、较低的溶解氧浓度、中性或碱性培养环境已经成为提高PHAs产量、降低PHAs生产成本的重要手段。随着生产工艺的不断优化,绿色生物塑料PHAs的规模化生产及其广泛应用必将推动包装材料向绿色化、安全化方向发展。The work aims to realize low-cost and high-efficiency synthesis and large-scale application of polyhy-droxyalkanoates(PHAs)as green packaging material by studying the carbon source substrate and affecting factors in its biosynthesis process in view of that its development is constrained by high production cost.The current research status and achievements of PHAs in China and abroad were summarized and analyzed.Besides,the carbon source substrate,microbial culture mode,as well as the effects of dissolved oxygen(DO),pH value,carbon nitrogen ratio on the synthesis efficiency of PHAs were introduced.Cheap biomass resources,reasonable carbon nitrogen ratio,multi batch aerobic-anaerobic culture,low dissolved oxygen concentration,neutral or alkaline culture environment have become important approaches to promote the accumulation of PHAs and reduce the production cost of PHAs.With the continuous optimization of the production process,the large-scale production and wide application of green bioplastics PHAs will drive the development of packaging materials in the direction of greening and safety.

关 键 词：聚羟基脂肪酸酯 生物降解包装材料 碳源 生产工艺 

分 类 号：TQ484.3[化学工程]