Ferulic acid esterase (FAE+)-producing lactobacilli are being studied as silage inoculants due to their potential of increasing forage fiber digestibility. In this work, three FAE+ strains were isolated from caprine feces and characterized according to their potential probiotic characteristics and as silage inoculants. CRL1446, a human probiotic isolated from goat cheese, was also included in the experiments as a potential silage inoculant.
View Article and Find Full Text PDFUnlabelled: Consumption of soybean-based foods is affected by the flavor of the legume; due to the presence of undesirable compounds called "beany flavors". To solve this problem, the influence of solid state fermentation by lactobacilli on the production of volatile compounds in soybean paste was determined. The volatile's production was measured by gas chromatography.
View Article and Find Full Text PDFThe use of lactobacilli with feruloyl esterase (FE) activity in the development of functional foods has gained considerable interest in recent years. Microencapsulation of FE-producing bacteria to facilitate their incorporation into food is a challenge. The aim of this study was to evaluate survival and maintenance of FE activity during storage at 4 °C and under simulated gastrointestinal tract (GIT) conditions of microcapsules of FE-producing () strains obtained by spray drying.
View Article and Find Full Text PDFWe report here the draft genome sequence of CRL1446 (2,148,781 bp, 51.4% G+C content). This strain exhibits feruloyl esterase activity and important technological and probiotic properties.
View Article and Find Full Text PDFThe purpose of this study was to determine whether the administration of the feruloyl esterase (FE)-producing strain Lactobacillus fermentum CRL1446 enhances metabolic and oxidative parameters in caloric-restricted (CR) mice. Balb/c male mice were divided into ad libitum fed Group (ALF Group), CR diet Group (CR Group) and CR diet plus L. fermentum Group (CR-Lf Group).
View Article and Find Full Text PDFFree fatty acids are important flavor compounds in cheese. Propionibacterium freudenreichii is the main agent of their release through lipolysis in Swiss cheese. Our aim was to identify the esterase(s) involved in lipolysis by P.
View Article and Find Full Text PDFThe present work evaluates the contribution of esterase activities of lactic acid bacteria isolated from ewe's dairy products to the release of free fatty acids (FFA) in ewe's milk cheese models. At 60 days of ripening, single-strain cheeses Ov 409 and Ov 421 showed high levels of total FFA (3075 and 2494.62 mg/kg, respectively).
View Article and Find Full Text PDFEight Enterococcus faecium strains isolated from ewe milk and artisanal cheese from northwest Argentina were screened for biotechnological properties relevant to flavour development. The API ZYM test showed absence of proteases, presence of high amounts of peptidases, and high esterase-lipase activities. Low extracellular proteolytic activity was observed.
View Article and Find Full Text PDFLactic acid bacteria (LAB) are considered weakly lipolytic compared with many other groups of bacteria (e.g., Pseudomonas, Bacillus, and Achromobacter).
View Article and Find Full Text PDFLactic acid bacteria (LAB) comprise a diverse group of Gram-positive, non-spore-forming microorganisms. These bacteria are widely used in food technology. The species identification of LAB depends mainly on physiological and biochemical criteria.
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