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引用次数: 0
摘要
细菌纳米纤维素（BNC）目前已成为一种可用于各种工业应用的潜在生物聚合物。然而，主要的问题是用于大规模生产 BNC 的细菌的局限性。本研究旨在从菠萝废料中分离和鉴定潜在的纳米纤维素生产细菌。本研究筛选了 11 个分离菌，并选择了 BNC 产量最高的 F1 分离菌进行 16S rRNA 测序。根据 16S rRNA 分析，Comamonas terrae YSZ sp. (OQ592726.1) 是最佳的 BNC 生产者，产量为 1.68 ± 0.19 g/L。从 FESEM 分析得出的理化特征显示，C. terrae YSZ sp. 产生的 BNC 为无定形，纳米纤维较少。XRD 分析表明，所生产的 BNC 的结晶度指数为 19.3%。据我们所知，这是首次报道从菠萝废料中分离出 C. terrae YSZ sp.
Isolation and characterization of amorphous nanocellulose producing Comamonas terrae YSZ sp. from pineapple wastes
Bacterial nanocellulose (BNC) currently has emerged as a potential biopolymer that can be used for various industrial applications. However, the major concern is the limitation of the bacteria used for BNC production on a larger scale. This study aimed to isolate and identify potential nanocellulose-producing bacteria from pineapple wastes. In this study, 11 isolates were screened and the F1 isolate, which produced the highest BNC yield was chosen for 16S rRNA sequencing. Based on the 16S rRNA analysis, Comamonas terrae YSZ sp. (OQ592726.1) was the best BNC producer with 1.68 ± 0.19 g/L yield. The physicochemical characteristics from FESEM analysis revealed that C. terrae YSZ sp. produced amorphous BNC, with fewer nanofibrils. The XRD analysis showed that the BNC produced had a 19.3% of crystallinity index. To the best of our knowledge, this is the first work reporting the isolation of C. terrae YSZ sp. from pineapple wastes with more amorphous regions providing an interesting alternative for heavy metal removal potentials.
期刊介绍：
"Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad.
"Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."
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