Biorefinery approach for cassava-based industrial wastes: Current status and opportunities

Author

• Ming Zhang^a, 
• Li Xie^a, , , 
• Zhixuan Yin^a, 
• Samir Kumar Khanal^b, 
• Qi Zhou^a

• ^a State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Institute of Biofilm Technology, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
• ^b Department of Molecular Biosciences and Bioengineering (MBBE), University of Hawai’i at Mānoa, Agricultural Sciences Building 218, 1955 East-West Road, Honolulu, HI 96822, United States

Received 2 February 2016, Revised 5 April 2016, Accepted 6 April 2016, Available online 8 April 2016

Highlights

•

Cassava industrial wastes/residues are rich in organic matters and suspended solids.

•

Cassava industrial wastes provide excellent platform to adopt biorefinery approach.

•

Bioconversion processes to produce various high-value products are discussed.

•

Feasibility of various bioconversion approaches and products is analyzed.

•

Propose a biorefinery concept for sustainable development of cassava industries.

---

Abstract

Cassava, an important food crop, has been extensively employed as raw materials for various agri-industries to produce starch, bioethanol and other biobased products/chemicals. These cassava-based industries also generate large quantities of wastes/residues, rich in organic matter and suspended solids, and pose significant environmental issues. Their complex biochemical composition with high organic content endows them with a great potential for bioconversion into value-added products via biorefinery thereby providing economic and environmental sustainability to cassava industries. This state-of-the-art review covers the source, composition and characteristics of cassava industrial wastes and residues, and their bioconversion into value-added products, mainly biofuels (ethanol and butanol), biogas, biosurfactant, organic acids and other valuable biochemicals among others. This paper also outlines future perspectives with respect to developing more effective and efficient bioconversion processes for converting the cassava wastes and residues into high-value products.

---

Graphical abstract

For further details log on website :
http://www.sciencedirect.com/science/article/pii/S0960852416305132