利用棕榈油和棕榈油废水作为碳源,在芽孢杆菌中生产聚羟基丁酸共聚羟基己酸酯 P(HB-co-HHx)生物聚合物

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-06-06 DOI:10.1002/jctb.7689
Vrunda N Katagi, Roopashri N Arekal, M Somashekara Divyashree
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引用次数: 0

摘要

随着全球对可生物降解聚合物的需求不断增加,这种聚合物的声誉也日益提高。其中,聚羟基烷酸酯(PHA)因其与传统塑料相似的特性而备受市场关注。PHA 是一种天然聚酯,储存在细菌的细胞内碳(C)能量储备中。这种生物聚合物可被提取出来,用于替代石化塑料。中链长(cl)PHA,特别是由芽孢杆菌生产的聚羟基丁酸-聚羟基己酸 P(HB-co-Hx)共聚物,由于其理化性质优于通常合成的 PHB 均聚物而受到实际关注。共聚物的生产取决于生长培养基中提供的碳源。在本研究中,我们使用了棕榈油和棕榈油污水作为 C 源。在本研究中,我们观察到,当污水浓度为 100%,而不是用水来制备生长介质时,产生了大量 PHA 和生物质。生物量和 PHA 的产量范围分别为 4.8-8 和 1.5-4 g L-1。这意味着使用该污水获得的 PHA 产量是对照组的 50-80%,而对照组的产量仅为 40-50%。此处获得的 PHA 的质子核磁共振分析表明,它由 mcl 聚合物 P(HB-co-HHx)组成。© 2024 作者。化学技术与生物技术期刊》由约翰威利父子有限公司代表化学工业学会(SCI)出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Utilization of palm oil and palm oil effluent as a carbon source for the production of polyhydroxybutyrate co-polyhydroxyhexanoate P(HB-co-HHx) a biopolymer in bacillus sp

BACKGROUND

Biodegradable polymers are gaining a reputation as demand is increasing globally. Amongst these Polyhydroxyalkanoates (PHA) are attracting market attention as a consequence of their properties similar to those of conventional plastics. PHA is a natural polyester that is stored as an intracellular carbon (C) energy reserve of bacteria. This biopolymer can be extracted and used in place of petrochemical plastic. Medium chain-length (mcl) PHA, specifically poly hydroxybutyrate-co-hydroxyhexanoate P (HB-co-HHx) copolymer produced by Bacillus, has gained practical attention owing to its superior physicochemical properties compared to the commonly synthesized PHB homopolymer. Co-polymer production is dependent on C sources provided in the growth medium. In the present study we have employed palm oil and palm oil effluent as C source.

RESULTS

In the current study, it was observed that a significant amount of PHA and biomass was produced when the effluent was prepared at a concentration of 100% instead of water for preparing the growth medium. The production of biomass and PHA showed a range of 4.8–8and 1.5–4 g L−1, respectively. This means that the PHA yield obtained using the effluent was 50–80% of the control, whereas the control yielded only 40–50%.

CONCLUSION

Palm industry waste can be used as a substrate in bioprocessing industries. Proton nuclear magnetic resonance analysis of PHA obtained herein indicates that it consists of the mcl polymer P (HB-co-HHx). © 2024 The Author(s). Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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来源期刊
CiteScore
7.00
自引率
5.90%
发文量
268
审稿时长
1.7 months
期刊介绍: Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
期刊最新文献
Issue Information In Focus: Materials and the Environment Symposium (XXXI IMRC México) Issue Information Adsorption behavior of graphite‐like walnut shell biochar modified with ammonia for ciprofloxacin in aqueous solution Eco‐friendly approaches for synthesis of indolyl 1H‐pyrroles using rice‐husk‐derived carbonaceous sulfonation as the green catalyst
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