Research Journal of Microbiology1816-4935xxxx-xxxxScience International10.3923/jm.2008.429.435OmoyaF.O. AkharaiyiF.C. 6200836Fermentation of the tropical fruits which involved the
activities microorganisms resulted to the alcohol yielded, aroma, taste
and the overall acceptability of the products. Six different alcoholic
beverages from watermelon, watermelon-banana and watermelon-pineapple
mixtures were produced using monoculture and mixed culture fermentation
techniques. Three yeast species (Kleochera apiculata, Torulospora
delbruckii, Saccharomyces cerevisiae) and six bacteria species
(Aerobacter aerogenes, Chromobacterium violacium, Lactobacillus
sp., Leuconostoc oenos, Micrococcus luteus and Streptococcus
lactis were identified during the study. The daily succession of these
organisms in the various fermenting samples, differs in cell mass and
occurrence due to their different growth conditions and factors present.
A higher bacterial load (4.4 ± 0.3-4.9 ±0.4 log (cfu) mL-1)
than yeast (3.0 ±00-4.9 ±0.2 log (cfu) mL-1) counts
was observed in the mixed culture fermentation, while in the monoculture
fermentation, a higher yeast load (4.1 ±0.2-4.9 ±0.3 log (cfu)
mL-1) than bacterial loads (2.5 ±0.1-4.3 ±0.3 log
(cfu) mL-1) counts was recovered. The monoculture fermented
beverages were of better characteristics than the mixed culture fermented
alcoholic beverages.]]>Allan, W.,1983Benda, I.,19824th Edn.,pp: 293-402pp: 293-402Block, D. and J. Glen,2000413738Cole, V.C. and A.C. Noble,1995Duncan, D.B.,195511142Holt, J.G., N.R. Krieg, P.H. Sneath, J.J. Stanley and S.T. Williams,1994Ihekoronye, A.I. and P.O. Ngoddy,1985Pages: 386Pages: 386Jay, J.M.,19965th Edn.,Van Rij, K.,19843rd Edn.,pp: 55-57pp: 55-57Madigan, M.T., J.M. Martinko and J. Parker,19978th Edn.,Odunfa, K.O.,19811981Ogbona, N.,1993388188Querol, A., E. Barrio and D. Ramon,199921253259Sanni, A.I.,1985Musa paradisiacal).]]>1985Shuts, M. and J. Gather,199375551558Smhitte, A., K. Curshman, A. Mittenbergee and A. Koehler,198425-2611261138Ward, D.R. and N.J. Baj,1988428589