The changes in the microbiological quality and polyphenol content during black chokeberry juice fermentation
Keywords:
product design, quality, black chokeberry, fermentation, microbiological quality, polyphenols, quality design
Summary
Fermented non-dairy drinks are a new generation of products with health-promoting properties, being a source of beneficial microbiota and biologically active substances. These products may be an alternative to dairy counterparts for consumers with food allergies or lactose and casein intolerance.
The aim of the study was the fermentation of chokeberry juice with the addition of banana pulp and glucose by selected microorganisms: Lactobacillus plantarum and Saccharomyces cerevisiae. During the fermentation, selected parameters were determined, including microbiological quality, taking into account the total number of mesophilic bacteria, lactic acid bacteria, Enterobacteriaceae family bacteria and staphylococci as well as the total content of polyphenols.
The most intensive growth of starter cultures was observed in the samples of juice with the addition of glucose. The content of polyphenolic compounds varied depending on the type of juice enriching additive.
dr hab. inż. Daniela GWIAZDOWSKA, prof. UEP
dr inż. Katarzyna MARCHWIŃSKA
dr inż. Krzysztof JUŚ
Ji Young YOU
Poznan University of Economics and Business
Institute of Quality Science
Department of Natural Science and Quality Assurance
Al. Niepodległości 10, 61-875 Poznań, Poland
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