Screening for antimicrobial features of 197 propionibacteria and tests with several antifungal lactobacilli led to the development of three protective cultures containing Propionibacterium jensenii SM11 and Lactobacillus paracasei subsp. paracasei strain SM20, SM29 or SM63. These cultures showed inhibitory activities (up to 5 orders of magnitude) against yeasts in dairy products such as yoghurt or cheese surface at refrigerator temperatures (6 degrees C) without an influence on the quality properties of the food. Initial cell numbers of 5 x 10(7) cells/g of propionibacteria and 1 x 10(8) cells/g of lactobacilli were the optimal concentrations to yield a total inhibition of the spoilage yeasts (Candida pulcherrima, Candida magnoliae, Candida parapsilosis and Zygosaccharomyces bailii).
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http://dx.doi.org/10.1078/072320204322881853 | DOI Listing |
Foods
June 2023
School of Health Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
Little is known about how combining probiotics affects the storage survival and functional performance of individual probiotics when incorporated into non-dairy drinks. Viability of GG (LG), ATCC 55730 (LR), subsp. BB-12 (Bb), and 702 (PJ), either alone or in multi-species combinations included in orange juice (OJ), were assessed during storage in refrigerated conditions and compared with bottled water (BW).
View Article and Find Full Text PDFThe gastrointestinal microflora regulates the body's functions and plays an important role in its health. Dysbiosis leads to a number of chronic diseases such as diabetes, obesity, inflammation, atherosclerosis, etc. However, these diseases can be prevented by using probiotics - living microorganisms that benefit the microflora and, therefore, improve the host organism's health.
View Article and Find Full Text PDFEnviron Microbiol
June 2021
Laboratory of Food Microbiology, Wageningen University & Research, P.O. Box 17, Wageningen, 6700AA, The Netherlands.
In this study we show increased biomass formation for four species of food-grade propionic acid bacteria (Acidipropionibacterium acidipropionici, Acidipropionibacterium jensenii, Acidipropionibacterium thoenii and Propionibacterium freudenreichii) when exposed to oxygen, implicating functional respiratory systems. Using an optimal microaerobic condition, P. freudenreichii DSM 20271 consumed lactate to produce propionate and acetate initially.
View Article and Find Full Text PDFInt J Food Microbiol
June 2020
Univ Brest, Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, F-29280 Plouzané, France. Electronic address:
Fungi are commonly identified as the cause for dairy food spoilage. This can lead to substantial economic losses for the dairy industry as well as consumer dissatisfaction. In this context, biopreservation of fermented dairy products using lactic acid bacteria, propionibacteria and fungi capable of producing a large range of antifungal metabolites is of major interest.
View Article and Find Full Text PDFMicroorganisms
October 2019
Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland.
The novel genus encompasses species of industrial importance but also those associated with food spoilage. In particular, , , and play an important role in food fermentation, as biopreservatives, or as potential probiotics. Notably, and can cause brown spot defects in Swiss-type cheeses, which have been tied to the rhamnolipid pigment granadaene.
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