Stoned olive pomace fermentation with Pleurotus species and its evaluation as a possible animal feed
Author(s)
Date Issued
2010
Type
Article
Abstract
The use of stoned olive pomace (SOP) as an unconventional feedstuff for livestock is limited by its inherently low crude protein (CP) content and by the presence of anti-nutritional compounds such as phenols.
Aim of this study was to assess whether solid-state fermentation of SOP with selective lignin-degrading fungi might ameliorate nutritional properties of the waste. Incubation of SOP, mixed (25%, w/w) with various conventional feedstuffs (i.e., wheat bran, wheat middlings, barley grains, crimson clover, wheat flour shorts and field beans), with Pleurotus ostreatus and Pleurotus pulmonarius led to significant CP
increases, ranging from 7 to 29%, and marked removal (from ca. 50–90%) of phenols after 6 weeks. Both species, however, led to moderate delignification associated with significant consumption of hemicelluloses.
Consequently, no improvements of both organic matter digestibility (OMD) and net energy of SOP–feedstuff mixtures occurred after the fungal colonization.
Additional information
L'articolo è disponibile sul sito dell'editore: http://www.sciencedirect.com
Citation
Brozzoli, V. et al. 2010. Stoned olive pomace fermentation with Pleurotus species and its evaluation as a possible animal feed. "Enzyme and Microbial Technology" 46(3-4): 223-228.
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