In vitro rumen fermentation kinetics of some co-products generated in the biodiesel production chain by gas production technique
DOI:
https://doi.org/10.5433/1679-0359.2011v32n4Sup1p2021Keywords:
Alternative food, Biofuel, Degradation Rate, Residue.Abstract
Fermentation kinetics rates of co-products generated in the supply chain of biodiesel were evaluated by in vitro gas production technique. Crambe meal, cottonseed meal, crambe cake, soybean cake and sunflower cake were evaluated. The soybean cake had higher rates of degradation of non-fiber carbohydrates (NFC), compared to other foods, resulting in higher volume of gas. Cottonseed meal and crambe meal had degradation rates of NFC and gas production similar. Although the crambe cake did not differ from crambe meal on gas production in the degradation of NFC, there were differences in the rate of degradation, being the highest value found for the cake. The biggest lag time was required for soybean cake and the lowest for the sunflower cake. The highest rates of degradation of fibrous carbohydrates (FC) were observed in soybean cake and crambe cake, and lowest in sunflower cake. The highest gas production coming from the degradation of FC was obtained for the crambe meal. The soybean cake and crambe cake were the co-products with a better profile on rumen fermentation kinetics in relation to the degradation of non-fiber carbohydrates and fibrous carbohydrates.
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Copyright (c) 2011 Ivone Yurika Mizubuti, Edson Luis de Azambuja Ribeiro, Elzania Sales Pereira, Andrea Pereira Pinto, André Luiz Custódio Franco, Mirna Adriane Syperreck, João Ricardo Rebouças Dórea, Gianne Evans Cunha, Matheus Gabriel Maidana Capelari, Elaine Barbosa Muniz
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