Advances and opportunities of anaerobic bioconversion of citrus waste

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Alfredo I. García-Galindo1, Monica L. Chávez-González1, Janeth Margarita Ventura Sobrevilla1, Ricardo Gómez-García1, Rosa Salas-Valdez1, Ileana Mayela Moreno Dávila1, Nagamani Balagurusamy2 & Cristóbal N. Aguilar1

1 Group of Bioprocesses and Bioproducts, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. J. Cardenas V., Saltillo, Coahuila, CP 25280, Mexico, Tel.: 52 (844) 416-12-38, Fax: 52 (844) 415-12-38, +52 (844) 415-95-34, E-mail: cristobal.aguilar@uadec.edu.mx

2 Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón, Coahuila, CP 27000, México

In: Handbook of Research on Food Science and Technology, Vol 2 Food Biotechnology and Microbiology (Eds.) Monica Chávez-González, Jose Juan Buenrostro-Figueroa & Cristobal N. Aguilar, Apple Academic Press-CRC Press, New Jersey, USA. In press (ISBN: 978-17-7188-719-9).

Citrus peel waste is rich in biopolymers and the biomass energy in it can be recovered by anaerobic digestion bioprocess. Nevertheless, the process instability is a common operational issue during anaerobic digestion of citrus wastes. Bioprocess monitoring, control, and microbial management are key points to control instability and increase the energy conversion efficiency of anaerobic digesters. Factors affecting anaerobic digestion process, particularly due to physicochemical properties of the substrate and the formation of undesirable compounds during the process, and their effect on microbial bioconversion efficiency during anaerobic digestion are discussed. Further, advances on anaerobic digestion of citrus wastes are analyzed and discussed in this paper along with perspectives and opportunities for future are presented in this paper.

anaerobic digestion-citrus fruit wastes


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