Microbial production of α-amylase from agro-waste: An approach towards biorefinery and bio-economy

IF 8 Q1 ENERGY & FUELS Energy nexus Pub Date : 2024-04-16 DOI:10.1016/j.nexus.2024.100293
Pramod Kumar Sahu , Renu Singh , Manoj Shrivastava , Sibanada Darjee , Vellaichamy Mageshwaran , Laccy Phurailtpam , Bharti Rohatgi
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Abstract

Economic utilization of waste in the generation of value-added products is the primary prerequisite of a circular economy. Agro-waste is one waste that is enormous on one hand and is rich in nutrients and bioproducts on the other hand. Microbial fermentation is an easy technology that can work following the nature of the waste substrate. Development of such a process is very much possible however it faces the initial challenge of diversity in substrates, microorganisms, enzymes, and bioproducts. It would be thus ideal to make an axis of one waste to one value-added product and then optimize around this axis. Here we explore the potential of a widely industrially used enzyme α-amylase as one terminal of the axis. The other axis would be starch-rich agro-waste like cereal waste. The connection between these two axis terminals would be an α-amylase producing microorganism. A lot of products e.g. nutraceuticals, biofuels, other enzymes, fertilizers, nanoparticles, etc. are possible around this axis. This review explores the suitability of α-amylase to serve as such an axis. We discuss the agro-waste that has the potential for α-amylase production, the industrial applicability of α-amylase, microorganisms known and bioengineered to produce α-amylase, and the optimization of this production process.

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从农业废弃物中微生物生产α-淀粉酶:实现生物精炼和生物经济的途径
经济地利用废物生产增值产品是循环经济的首要前提。农业废弃物是一种一方面数量巨大,另一方面富含营养和生物产品的废弃物。微生物发酵是一种简单易行的技术,可以根据废物基质的性质发挥作用。这种工艺的开发是完全可能的,但它最初面临的挑战是底物、微生物、酶和生物产品的多样性。因此,理想的做法是以一种废物到一种增值产品为轴心,然后围绕这一轴心进行优化。在此,我们探讨了一种在工业上广泛使用的酶α-淀粉酶作为轴的一个终端的潜力。另一个轴将是富含淀粉的农业废料,如谷物废料。连接这两个轴终端的是产生α-淀粉酶的微生物。围绕这条轴线,可以生产出许多产品,如营养保健品、生物燃料、其他酶、肥料、纳米颗粒等。本综述探讨了α-淀粉酶作为这种轴的适宜性。我们讨论了具有生产α-淀粉酶潜力的农业废弃物、α-淀粉酶的工业适用性、已知和生物工程生产α-淀粉酶的微生物,以及这一生产过程的优化。
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来源期刊
Energy nexus
Energy nexus Energy (General), Ecological Modelling, Renewable Energy, Sustainability and the Environment, Water Science and Technology, Agricultural and Biological Sciences (General)
CiteScore
7.70
自引率
0.00%
发文量
0
审稿时长
109 days
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