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Pastos y Forrajes

Print version ISSN 0864-0394On-line version ISSN 2078-8452


BENITEZ-DE LA TORRE, Alfonso et al. Addition of energy sources and inoculants in the elaboration of cassava-based yogurt. Pastos y Forrajes [online]. 2018, vol.41, n.1, pp.30-34. ISSN 0864-0394.

The objective of this work was to evaluate the fermentation of cassava paste with the addition of energy sources of agroindustrial waste and the inoculation of microbial strains available in Cuba. The effect of the addition of molasses, sugarcane juice and whey, as well as the inoculation with the biopreparation IH Plus®, lactic acid bacteria alone and in combination with Saccharomyces cerevisiae, was studied. The acidification rate, production of organic acids and buffering capacity were measured at 8, 16 and 24 days of fermentation, for which a trial was conducted in randomized complete blocks for each studied factor with four repetitions. With the addition of whey, sugarcane juice and molasses in a 1:1 ratio (paste: carbon source) cassava-based yogurt was obtained with pH lower than 4,0 and the production of organic acids was significantly improved with the addition of whey at 24 days with regards to the control (p < 0,05). The addition of sugarcane juice and whey allowed to maintain a constant increase during 24 days in the production of organic acids and buffering capacity compared with the control. No improvements due to the addition of inoculants were observed, which indicated that the natural flora of cassava was sufficient to ferment the paste. It is concluded that it is possible to improve the traditional method of cassava-based yogurt elaboration with the addition of easily-accessed energy sources without the need of adding inoculants.

Keywords : animal feeding; fermentation; inoculation.

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