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Biotransformation of citrus by-products into value added products
Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0003-0079-5950
2014 (English)In: Waste and Biomass Valorization, ISSN 1877-2641, E-ISSN 1877-265X, Vol. 5, no 4, p. 529-549Article in journal (Refereed) Published
Abstract [en]

Citrus by-products are the processing wastes generated after citrus juice extraction and constitute about 50 % of fresh fruit weight. This solid residue comprised of peel (flavedo and albedo), pulp (juice sac residue), rag (membranes and cores) and seeds. The disposal of the fresh peels is becoming a major problem to many factories. Usually, citrus juice industries dry the residue and it is either sold as raw material for pectin extraction or pelletized for animal feeding, though none of these processes is very profitable. This residual material is a poor animal feed supplement because of its extremely low protein content and high amount of sugar. The application of agroindustrial by-products in bioprocesses offers a wide range of alternative substrates, thus helping solve pollution problems related to their disposal. This article reviews attempts that have been made to use citrus by-products to generate several value-added products, such as essential oils, pectin, enzymes, single cell protein, natural antioxidants, ethanol, organic acids, and prebiotics.

Place, publisher, year, edition, pages
2014. Vol. 5, no 4, p. 529-549
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-6914DOI: 10.1007/s12649-013-9250-yISI: 000347721100001Scopus ID: 2-s2.0-84926351203Local ID: 53f984a8-090e-4bcf-9799-96212a1010b3OAI: oai:DiVA.org:ltu-6914DiVA, id: diva2:979800
Note
Validerad; 2014; 20130812 (pauchr)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Christakopoulos, Paul

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