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通过优化氧化酸生产,通过固态发酵来溶解酸岩的新方法

Natalia Alvarez Rodrigues¹, Mariane Molina Buffo², Fernanda Perpétua Casciatori³

¹Graduate Program of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil; Embrapa Instrumentação, Rua XV de Novembro 1452, 13565-905 São Carlos, SP, Brazil; Chemical Engineering Department, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil.

Bioresource technology

|July 28, 2024

概括

这项研究优化了使用Aspergillus niger的固态发酵 (SSF),以促进氧酸生产,以提高酸岩的溶解度. 优化的条件显著增加了可溶,为先进的生物肥料铺平了道路.

科学领域:

农业科学农业科学
生物技术是生物技术.
环境科学环境科学

背景情况:

酸盐岩 (PR) 是农业的重要来源,但其低可溶性限制了营养的可用性.
开发可持续的PR溶解方法对于提高使用效率和减少对合成肥料的依赖至关重要.
固态发酵 (SSF) 提供了一个有前途的生物技术方法来溶解酸盐岩.

研究的目的:

通过SSF优化Aspergillus niger的酸生产,以增强酸岩的溶解.
评估各种农业工业副产品和工艺参数对酸产量和PR溶解的影响.
评估优化SSF工艺在生产生物肥料方面的潜力.

主要方法:

系统评估农业工业副产品 (甘包,小麦,大豆) 作为SSF的基质.
优化关键的工艺参数,包括基质比,pH值,糖糖补充和甲醇添加.
从不同的酸岩 (Bayóvar,Itafós,Registro) 和有机来源量化氧酸生产和可溶释放.

主要成果:

甘和大豆1:1的比例被确定为最有效的基质组合.
甲醇 (7%) 和砂糖 (0.5%) 补充导致氧酸生产增加了三倍.
优化的SSF从Bayóvar,Itafós和Registro PR中实现了显著的溶解,从Bayóvar PR释放的可溶性P高达12.1g/kgds (63.8%的效率).
此外,SSF工艺还有效地从农业工业基板中释放有机.

结论:

使用Aspergillus niger优化SSF是一种高度有效的方法,可以增强酸盐岩的溶解和回收.
开发的过程表明了从农业工业副产品中可持续生产工业生物肥料的潜力.
这种方法通过对农业应用的废弃物进行价值化,有助于促进生物经济的发展.

关键词:

黑色阿斯珀吉勒斯 (Aspergillus niger) 是一种生物肥料生物肥料的使用生物溶解化生物溶解化有机酸有机酸有机酸酸是一种.

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