Valorization of Banana Peel for Citric Acid Production under Solid State Fermentation with Aspergillus niger

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
T. Chysirichote
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引用次数: 4

Abstract

Valorization of banana peel (BP) through solid state fermentation (SSF) was aimed in this research. The appropriate conditions of citric acid (CA) production by SSF of Aspergillus niger were investigated. Firstly, the optimum initial pH of the BP and the aeration rate were studied by conducting SSF in a 250-mL flask and 2-L glass column, respectively. It was found that the initial pH of the BP and aeration rates affected the CA production. The results showed that the initial pH of 5.0 and 1.0 vvm aeration were appropriate for the CA production of A. niger using BP as a substrate. The problem of rising temperature during SSF was found when applying the optimum condition to the SSF in the 20-L packed bed bioreactor (PBB), which caused a decrease in the CA production compared to that of the glass column. The cooling air jacket constructed to the PBB to remove the heat during the SSF helped increase the CA production from that in the PBB. The maximum CA production in the 20-L air-jacketed PBB was 124.0±19.2 mg gDS.
黑曲霉固态发酵生产柠檬酸的香蕉皮Valorization
以香蕉皮为研究对象,研究了固体发酵对香蕉皮的发酵作用。研究了黑曲霉SSF产柠檬酸的适宜条件。首先,分别在250-mL烧瓶和2-L玻璃柱中进行SSF,研究了BP的最佳初始pH和曝气速率。结果表明,初始pH值和曝气速率对CA的生成有影响。结果表明,以BP为底物的黑曲霉产CA的适宜条件为初始pH 5.0和1.0 vvm曝气。在20 l填料床生物反应器(PBB)中,采用最佳工艺条件对SSF进行处理,发现SSF过程中存在温度升高的问题,导致CA产量较玻璃塔有所下降。为了在SSF过程中除去热量,在PBB上安装了冷却空气夹套,这有助于增加PBB中的CA产量。在20 l气套PBB中CA的最大产量为124.0±19.2 mg gDS。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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