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可持续的糖生产从米使用碳水化合物酶
Fabiane N Silva1, Igor C F Sampaio2, João Marcos de S Chaves2
1Department of Exact Sciences and Natural, State University of Southwest Bahia, Itapetinga 45700-000, Brazil.
ACS omega
|August 4, 2025
概括
这项研究优化了用固态发酵来转化纤维纤维素生物质的酶生产. 由此产生的碳水化合物酶混合物有效地将大米转化为降低糖,为生物能源和食品废物利用提供了潜力.
科学领域:
- 生物技术是生物技术.
- 酶学 是一种酶学.
- 生物质转换生物质转换
背景情况:
- 纤维酶是分解纤维素和转化纤维素生物质的关键酶.
- 通过使用廉价基质进行固态发酵,可以实现具有成本效益的酶生产.
研究的目的:
- 为了优化基质成分和发酵条件,以生产细胞酶.
- 描述产生的碳水化合物酶混合物的酶性质和应用潜力.
主要方法:
- 使用Simplex-Centroid和Doehlert设计来优化基质混合物和发酵参数 (温度,湿度,时间).
- 评估了酶活性,稳定性 (pH,温度,盐耐受性) 和离子/化合物激活.
- 通过碳水化合物酶混合物对大米的水解使用HPLC进行了分析.
主要成果:
- 最佳基质:80%的可可豆外,20%的料棕.
- 最佳发酵:28°C,60%的水分,96小时.
- 酶表现出广泛的pH活性,在70°C的稳定性,性特性 (NaCl的活性增加278%),以及Ca2+和DMSO的激活.
- 碳水化合物酶混合水解米,产生13毫克的降解糖/g生物质,与葡萄糖和果糖确定.
结论:
- 优化的酶配方表明了创新的生物技术潜力.
- 该工艺适合从大米中可持续生产富含果糖的糖.
- 这些发现支持生物能源发电和食品废弃物利用方面的应用.
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