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

Ganesh Dattatraya Saratale; Rahul Bhosale; Sutha Shobana; J Rajesh Banu; Arivalagan Pugazhendhi; Eyas Mahmoud; Ranjna Sirohi; Shashi Kant Bhatia; A E Atabani; Vincenzo Mulone; Jeong-Jun Yoon; Han Seung Shin; Gopalakrishnan Kumar

doi:10.1016/j.biortech.2020.123800

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

Bioresour Technol. 2020 Oct:314:123800. doi: 10.1016/j.biortech.2020.123800. Epub 2020 Jul 9.

Authors

Affiliations

¹ Department of Food Science and Biotechnology, Dongguk University-Seoul, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea.
² Department of Chemical Engineering, College of Engineering, Qatar University, P. O. Box e 2713, Doha, Qatar.
³ Department of Chemistry and Research Centre, Mohamed Sathak Engineering College, Ramanathapuram, Tamil Nadu, India.
⁴ Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, India.
⁵ Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
⁶ Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, PO Box: 15551, Al Ain, United Arab Emirates.
⁷ Department of Postharvest Process and Food Engineering GB Pant University of Agriculture and Technology Pantnagar, 263145, Uttarakhand, India.
⁸ Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea.
⁹ Alternative Fuels Research Laboratory (AFRL), Energy Division, Department of Mechanical Engineering, Faculty of Engineering, Erciyes University, 38039 Kayseri, Turkey.
¹⁰ Department of Industrial Engineering, University of Rome Tor Vergata, Italy.
¹¹ Green & Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), Chungnam 330-825, Republic of Korea.
¹² School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea. Electronic address: gopalakrishnanchml@yonsei.ac.kr.

PMID: 32684320
DOI: 10.1016/j.biortech.2020.123800

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.

Keywords: Added–value products; Biopolymers; Circular economy; Recycling; Spent coffee grounds.

Publication types

Review

MeSH terms

Biofuels
Biopolymers
Biotechnology
Coffee*
Metals, Heavy*

Substances

Biofuels
Biopolymers
Coffee
Metals, Heavy