Separate Hydrolysis and Fermentation of Kitchen Waste Residues Using Multi-Enzyme Preparation from Aspergillus niger P-19 for the Production of Biofertilizer Formulations

This study addresses the management of kitchen waste by transforming it into biofertilizer formulations, utilizing an effective, in-house-developed multi-enzyme preparation. An approach consisting of separate hydrolysis and fermentation bioprocessing processes was used, employing a multi-enzyme prep...

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Bibliographic Details
Published in:Sustainability 2023-06, Vol.15 (12), p.9182
Main Authors: Sharma, Apurav, Dogra, Sakshi, Thakur, Bishakha, Yadav, Jyoti, Soni, Raman, Soni, Sanjeev Kumar
Format: Article
Language:English
Subjects:
Aspergillus niger
Bioprocessing
Cellulase
Cellulose
Chlorophyll
Enzymes
Essential nutrients
Fermentation
Fertilizers
Glucose
Hydrolysates
Hydrolysis
Kitchens
Klebsiella
Microorganisms
Nutrients
R&D
Raw materials
Research & development
Sustainability
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Summary:This study addresses the management of kitchen waste by transforming it into biofertilizer formulations, utilizing an effective, in-house-developed multi-enzyme preparation. An approach consisting of separate hydrolysis and fermentation bioprocessing processes was used, employing a multi-enzyme preparation from Aspergillus niger P-19 to separately hydrolyze kitchen waste, followed by the fermentation of the hydrolysate for the growth of Klebsiella pneumoniae AP-407, which has biofertilizer traits. This has led to the simultaneous generation of liquid as well as carrier-based biofertilizer formulations with viable cell counts of 3.00 × 1012 CFU/mL and 3.00 × 1012 CFU/g, respectively. Both biofertilizer formulations significantly enhanced the morphometric characteristics and leaf chlorophyll contents of Tagetes erecta, in addition to enriching the soil with essential nutrients. The current study adopted a novel processing technology for the manufacturing of both carrier and liquid biofertilizers, adopting a zero-waste approach for the management of kitchen waste.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15129182