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Revista Colombiana de Biotecnología
versão impressa ISSN 0123-3475
Resumo
LARA MANTILLA, Cecilia; MENDOZA F, Carmelo A e OVIEDO ZUMAQUE, Luis E. Productivity and selectivity of culture medium from the sour guava (Psidium araca) in the growth of native yeast Candida sp. Rev. colomb. biotecnol [online]. 2010, vol.12, n.2, pp.116-123. ISSN 0123-3475.
This work was carried out to evaluate the efficiency of the culture medium from sour guava (Psidium araca) against commercial media in the growth of three native strains: Candida guillermondii, Candida famata and Candida sp. Microbial growth was evaluated at different concentrations of fruit, 5, 10, 25, 50% w /v, using as control the commercial media: Malta, Sabouraud and PDA (Potato Dextrose Agar). The productivity and selectivity of the sour guava medium was determined by the Ecometric method in a time of 48 hours. The applied statistical analysis to evaluate and compare growth of strains in commercial culture medium and in the medium from sour guava at different concentrations showed: Candida guillermondii grew greater than or equal to 25 and 50% w / v compared with commercial medium, Candida famata and Candida sp showed better growth at 5% w / v, with respect to commercial medium. The results showed that the medium is highly productive and non-selective representing an alternative to the conservation, maintenance and development of the yeasts.
Palavras-chave : Ecométric method; Candida guillermondii; Candida famata; Candida sp.