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

Apurav Sharma, Sakshi Dogra, Bishakha Thakur, Jyoti Yadav, Raman Soni and Sanjeev Kumar Soni ()
Additional contact information
Apurav Sharma: Department of Microbiology, Panjab University, Chandigarh 160014, India
Sakshi Dogra: Department of Microbiology, Panjab University, Chandigarh 160014, India
Bishakha Thakur: Department of Microbiology, Panjab University, Chandigarh 160014, India
Jyoti Yadav: Department of Microbiology, Panjab University, Chandigarh 160014, India
Raman Soni: Department of Biotechnology, D.A.V. College, Chandigarh 160011, India
Sanjeev Kumar Soni: Department of Microbiology, Panjab University, Chandigarh 160014, India

Sustainability, 2023, vol. 15, issue 12, 1-18

Abstract: 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 × 10 12 CFU/mL and 3.00 × 10 12 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.

Keywords: kitchen waste; enzyme; enzymatic hydrolysis; biofertilizer (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/12/9182/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/12/9182/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:12:p:9182-:d:1165210

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().