A review on valorization of spent coffee grounds (SCG) towards biopolymers and biocatalysts production

Saratale G. D., Bhosale R., Shobana S., Banu J. R., Pugazhendhi A., Mahmoud E., ...More

BIORESOURCE TECHNOLOGY, vol.314, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Review
  • Volume: 314
  • Publication Date: 2020
  • Doi Number: 10.1016/j.biortech.2020.123800
  • Journal Name: BIORESOURCE TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Compendex, EMBASE, Environment Index, Food Science & Technology Abstracts, Geobase, INSPEC, MEDLINE, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Added-value products, Circular economy, Biopolymers, Recycling, Spent coffee grounds, SUPERCRITICAL-FLUID EXTRACTION, SOLID-STATE FERMENTATION, ACTIVATED CARBONS, POLYHYDROXYALKANOATES PHAS, BIODEGRADABLE POLYMERS, BIODIESEL PRODUCTION, BY-PRODUCTS, OIL, WASTE, ADSORPTION
  • Erciyes University Affiliated: Yes

Abstract

Spent coffee grounds (SCG) are an important waste product millions of tons generated from coffee consumption and could be effectively utilized for various applications due to their high organic content. SCG can be used as a potential feedstock to develop coffee-based biorefinery towards value-added products generation through various biotechnological processes. Considerable developments have been reported on emerging SCG-based processes/products in various environmental fields such as removal of heavy metals and cationic dyes and in wastewater treatment. In addition, SCG are also utilized to produce biochar and biofuels. This review addressed the details of innovative processes used to produce polymers and catalysts from SCG. Moreover, the application of these developed products is provided and future directions of the circular economy for SCG utilization.