Enhancement of Agro-Industrial Waste Composting Process via the Microbial Inoculation: A Brief Review

Abstract

Composting is an important technology used to treat and convert organic waste into value-added products. Recently, several studies have been done to investigate the effects of microbial supplementation on the composting of agro-industrial waste. According to these studies, microbial inoculation is considered to be one of the suitable methods for enhancing the biotransformation of organic materials during the composting process. This review provides up-to-date research findings on microbial inoculation strategies and their role and functions in enhancing the composting process and the improvement of compost quality. Based on this review, the addition of microorganisms could enhance the composting process such as accelerating the organic matter degradation, mineralization and microbial enzymes activities, and the quality of the end-products such as high germination index. It is important to notice in this strategy that sludge’s microbial consortium is feasible to enhance the composting process in pilot-scale and industrial-scale productions. Besides, it also reduces the cost of compost production. The findings of this review show the various positive impact of microbial inoculation on agro-industrial waste composting which in turn might be useful as a reference for selecting a suitable inoculum based on the type of waste materials.

AGRONOMIC PERFORMANCE OF SHALLOT (Allium cepa L. var. Aggregatum) UNDER DIFFERENT MULCH AND ORGANIC FERTILIZERS

“…The application of bioculture and biourine in addition to improving soil texture and functioning as plant hormones are also reported to improve micronutrient deficiencies because they are organic and tend to increase the efficiency of fertilizer use (Yang et al, 2020). The use of organic fertilizers is an effective technique for improving physical properties associated with increasing soil organic matter which leads to soil quality (Müjdeci̇ et al, 2020;Tabaxi et al, 2020), and re-use animal manure, conferring them an added value (Martínez-Alcántara et al, 2016;Zainudin et al, 2022). Hopefully, the use of bioculture and biourine organic fertilizers can increase sustainable agricultural production because as it is known to be environmentally friendly, economically feasible and easily obtained in abundance.…”

Biosurfactant from Bacillus subtilis DS03: Properties and Application in Cleaning Out Place System in a Pilot Sausages Processing

“…Despite the excellent advantages and properties offered by BS, their commercial use is currently limited mainly due to problems related to production costs [ 19 ]. Thus, strategies considering agro-industrial food waste and by-products have been promoted [ 20 ]. Another important aspect is related to the purity of the biologically based compound.…”

Los residuos agroindustriales, una oportunidad para la economía circular

“…Por un lado, residuos de campo, como hojas, tallos, vainas de semillas y tallos que permanecen en el campo después de la cosecha. Por otro lado, los residuos de procesos, como melaza, cáscaras, bagazos, vástagos, semillas, hojas, tallo, paja, pulpa, rastrojo y raíces, que están presentes después de que los cultivos se transforman en productos para consumo final [4].…”

“…Este proceso permite la reutilización de residuos orgánicos heterogéneos mediante un bioproceso aeróbico, que los convierte en abono (compost) para el aumento de la población microbiana existente en los suelos. Son números los residuos agroindustriales que se usan de manera controlada en la producción de compost, como estiércol de cerdo y pollo, tallo de maíz o trigo, serrín y restos de madera, cáscara de cítricos, paja de arroz, bagazo de caña o fibras de algodón [4]. Sin embargo, esta es una práctica que se hace de manera no controlada en muchas zonas de producción, lo que puede generar problemas ambientales.…”