Exploitation of agro industrial wastes as immobilization carrier for solid-state fermentation

María C. Orzua, Solange I. Mussatto, Juan Carlos Contreras Esquivel, Raul Rodríguez , Heliodoro de la Garza, Jose A. Teixeira, C. N. Aguilar

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Ten agro industrial wastes were assessed for their suitability as fungus immobilization carrier for solid-state fermentation (SSF). The wastes included creosote bush leaves (Larrea tridentata), variegated Caribbean agave (Agave lechuguilla), lemon peel (Citrus aurantifolia), orange peel (Citrus sinensis), apple pomace (Malus domestica), pistachio shell (Pistacia vera), wheat bran (Triticum spp.), coconut husk (Cocos nucífera), pecan nutshell (Carya illinoinensis), and bean residues (Phaseolus vulgaris). All of them were physical–chemically and microbiologically characterized. Physical–chemical tests consisted in the deter-mination of the critical humidity point and the water absorption index; while the microbiological tests were based on the evaluation of Aspergillus niger Aa-20 growth rate in such materials. The study pointed out that coconut husk, apple pomace, lemon and orange peels were the materials of greater potential for use as immobilization carrier in SSF, since they have high water absorption capacity, and allowed good microorganism growth rate. This result is of significant interest due to the low cost and abundant availability of such wastes.
Original languageEnglish
JournalIndustrial Crops and Products
Volume30
Pages (from-to)24-27
ISSN0926-6690
DOIs
Publication statusPublished - 2009
Externally publishedYes

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