Valorization of dairy waste and by-products through microbial bioprocesses

Zeba Usmani, Minaxi Sharma, James Gaffey, Monika Sharma, Richard J. Dewhurst, Benoît Moreau, John Newbold, William Clark, Vijay Kumar Thakur, Vijai Kumar Gupta*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)

Abstract

Waste is an inherent and unavoidable part of any process which can be attributed to various factors such as process inefficiencies, usability of resources and discarding of not so useful parts of the feedstock. Dairy is a burgeoning industry following the global population growth, resulting in generation of waste such as wastewater (from cleaning, processing, and maintenance), whey and sludge. These components are rich in nutrients, organic and inorganic materials. Additionally, the presence of alkaline and acidic detergents along with sterilizing agents in dairy waste makes it an environmental hazard. Thus, sustainable valorization of dairy waste requires utilization of biological methods such as microbial treatment. This review brings forward the current developments in utilization and valorization of dairy waste through microbes. Aerobic and anaerobic treatment of dairy waste using microbes can be a sustainable and green method to generate biofertilizers, biofuels, power, and other biobased products.

Original languageEnglish
Article number126444
JournalBioresource Technology
Volume346
Early online date28 Nov 2021
DOIs
Publication statusPrint publication - Feb 2022

Keywords

  • Biodegradation
  • Biomass valorization
  • Circular economy
  • Dairy waste
  • Microbial processing

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