巴西食品废弃物作为生物乙醇生产的基质
Íthalo Barbosa Silva de Abreu1, Rayssa Karla Silva2, Joyce Gueiros Wanderley Siqueira1
1Research Group on Biomass Energy, Department of Nuclear Energy, Federal University of Pernambuco, Recife 50740-545, PE, Brazil.
Foods (Basel, Switzerland)
|January 8, 2025
概括
食品废弃物可以通过酸性或酶性水解转化为可发酵糖和生物乙醇. 酸性水解证明更有效,从原始食品废物中产生更高的生物乙醇,提供可持续的生物燃料替代品.
科学领域:
- 生物技术是生物技术.
- 生物化学 生物化学
- 环境科学 环境科学
背景情况:
- 食品废弃物 (FW) 是一个重要的环境污染物,释放温室气体并影响土壤和水体.
- 生物燃料是生物燃料和生物产品生产的宝贵资源,为循环生物经济做出贡献.
- 开发有效的FW价值化方法对于减轻环境问题和促进可持续资源管理至关重要.
研究的目的:
- 研究食物废弃物的转化为可发酵糖和生物乙醇.
- 为了比较酸性和酶性水解的效率,用于从食物废物中生产糖.
- 为了优化酸性水解的条件,并评估不同水解剂的生物乙醇产量.
主要方法:
- 作为预处理步骤,食品废物经过了脂质去除.
- 在不同的条件下 (时间,度,固体负荷,温度) 使用氨基酶 (酶) 和硫酸进行过水解.
- 生物乙醇的生产是通过使用*Saccharomyces cerevisiae*用化物作为碳来源进行静态浸泡发酵来实现的.
主要成果:
- 酸水解的最佳条件产生了降解糖的最高度 (1.5%的硫酸,15%的固体负荷,1小时在127°C).
- 与酶性水解 (72.7%) 相比,酸水解的效率更高 (76.26%).
- 最高的生物乙醇产量 (0.49公斤·公斤葡萄糖-1) 来自原始食品废物的酸化物.
结论:
- 研究的过程是有效的从食品废弃物生产生物乙醇.
- 与酶性水解相比,酸水解是一种更有效的方法,用于从食物废物中生产可发酵糖.
- 这项研究为食品废物管理和低成本生物燃料生产提供了可持续的替代方案.
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