Sustainable processing of food waste for production of bio-based products for circular bioeconomy

Poonam Sharma, Vivek K. Gaur, Ranjna Sirohi, Sunita Varjani*, Sang Hyoun Kim, Jonathan W C Wong

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

172 Citations (Scopus)


Sustainable development of circular bioeconomy concept is only possible upon adopting potential advanced technologies for food waste valorization. This approach can simultaneously answer resources and environmental challenges incurred due to capital loss and greenhouse gases accumulation. Food waste valorization opens new horizons of economical growth, bringing waste as an opportunity feedstock for bio processes to synthesize biobased products from biological source in a circular loop. Advanced technologies like Ultrasound assisted extraction, Microwave assisted extraction, bioreactors, enzyme immobilization assisted extraction and their combination mitigates the global concern caused due to mismanagement of food waste. Food waste decomposition to sub-zero level using advanced techniques fabricates food waste into bio-based products like bioactive compounds (antioxidants, pigments, polysaccharides, polyphenols, etc.); biofuels (biodiesel, biomethane, biohydrogen); and bioplastics. This review abridges merits and demerits of various advanced techniques extended for food waste valorization and contribution of food waste in revenue generation as value added products.

Original languageEnglish
Article number124684
Number of pages12
JournalBioresource Technology
Early online date9 Jan 2021
Publication statusPublished - Apr 2021

Scopus Subject Areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

User-Defined Keywords

  • Biorefinery
  • Circular bioeconomy
  • Food waste valorization
  • Waste to wealth
  • Zero waste generation


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