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- Title
Fruit waste streams in South Africa and their potential role in developing a bio-economy.
- Authors
Khan, Nuraan; le Roes-Hill, Marilize; Welz, Pamela J.; Grandin, Kerry A.; Kudanga, Tukayi; van Dyk, J. Susan; Ohlhoff, Colin; van Zyl, W. H. (Emile); Pletschke, Brett I.
- Abstract
Current and previous studies on bio-based (fruit) wastes and wastewaters, with a particular emphasis on research in South Africa, were reviewed. Previous studies have focused predominantly on the beneficiation and application of fruit waste as a feedstock for renewable energy. A definite gap in knowledge and application of fruit waste streams with regard to enzyme production as a value-added product is identified. The characteristics and composition of each type of fruit waste are highlighted and their potential as feedstocks in the production of value-added products is identified. The conversion of agri-industrial wastewaters to bioenergy and value-added products is discussed, with special mention of the newly published South African Bio-Economy Strategy, and the potential production of biofuels and enzymes from waste streams using recombinant Aspergillus strains. Finally, to maximise utilisation of waste streams in South Africa and abroad, a conceptual model for an integrated system using different technologies is proposed.
- Subjects
BIOMASS energy; SEWAGE; RENEWABLE energy sources; ENERGY conservation; ALTERNATIVE fuels
- Publication
South African Journal of Science, 2015, Vol 111, Issue 5/6, p17
- ISSN
0038-2353
- Publication type
Article
- DOI
10.17159/sajs.2015/20140189