Emily Ouma, Immaculate Kanyana, Piet Van Asten,
Quality Assessment of Banana Juice and Beer in Rwanda,
Journal of Food Technology,
Volume 11,Issue 2,
2013,
Pages 38-43,
ISSN 1684-8462,
jftech.2013.38.43,
(https://makhillpublications.co/view-article.php?doi=jftech.2013.38.43)
Abstract: Banana juice and beer samples were collected at different
points along the processing and marketing chain from four localities in Rwanda
and analyzed for microbiological and physico-chemical quality by adapting a
Hazard Analysis and Critical Control Points (HACCP) methodology. The results
showed high total bacterial counts of 9.02-9.86 log10 cfu mL-1
with yeast and moulds as well as lactic acid bacteria being the predominant
microbes. Coliform counts were high in artisanal processed banana beer, 7.65-8.11
log10 cfu mL-1 but were low or undetected in semi-industrial
processed beer samples. The presence of coliforms in the artisanal processed
banana beer indicated post-fermentation contamination. High total bacteria and
coliform counts were associated with samples from artisanal processors, those
drawn from plastic non-food grade containers and diluted with water indicating
these as potential critical points for microbial ingress.
Keywords: Banana beer;juice;microbiological;physico-chemical;coliforms;bacterial counts