Petroleum-based plastics commonly and widely used on a daily basis are a threat to ecological health as they do not degrade in an ecologically feasible time frame. A class of natural polymers known as polyhydroxyalkanoates (PHAs) represents an up-and-coming alternative to petroleum-based materials, as they share properties similar to those of commodity plastics, such as polyethylene, polystyrene, among others, with the advantage of being biodegradable. PHAs are naturally produced by microorganisms under stress, and various farming practices have been proposed to be used for the synergistic and sustainable production of PHA for commercial purposes. Aquaculture has demonstrated particular potential for the production of PHA; however, a large struggle in commercializing these polymers is in procuring necessary feedstocks for manufacture outside of the laboratory environment. Through the coupling of PHA production and biofloc technology in aquaculture, the impediments to commercial exploitation can be potentially surmounted, while also providing for higher production efficiency in aquafarms. This mini-review covers the basic aspects of biofloc technology applied to aquaculture for the commercial production of PHA in large scale and offers a brief perspective on the next steps associated with the research and implementation of PHA production with biofloc technology.

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水产养殖废物：聚羟基脂肪酸酯的潜在合成

日常广泛使用的石油基塑料对生态健康构成威胁，因为它们不会在生态可行的时间内降解。一类被称为聚羟基脂肪酸酯 (PHA) 的天然聚合物代表了石油基材料的新兴替代品，因为它们具有与聚乙烯、聚苯乙烯等商品塑料相似的特性，并且具有以下优点：可生物降解。PHA是由微生物在压力下自然产生的，并且已经提出使用各种农业实践来协同和可持续地生产PHA以用于商业目的。水产养殖已显示出生产 PHA 的特殊潜力；然而，这些聚合物商业化的一大难题是采购在实验室环境之外进行制造所需的原料。通过将PHA生产与水产养殖中的生物絮团技术相结合，可以克服商业开发的障碍，同时还可以提高水产养殖场的生产效率。这篇小综述涵盖了生物絮凝技术应用于水产养殖以大规模商业生产 PHA 的基本方面，并简要介绍了与生物絮凝技术生产 PHA 的研究和实施相关的后续步骤。