Fermentation of vegetable substrates by lactic acid bacteria as a basis of functional foods

Irena Němečková, Hedvika Dragounová, Marta Pechačová, Jana Rysová and Petr Roubal
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Irena Němečková: Dairy Research Institute Ltd., Prague, Czech Republic
Hedvika Dragounová: Dairy Research Institute Ltd., Prague, Czech Republic
Marta Pechačová: MILCOM Company Limited, Prague, Czech Republic
Jana Rysová: Food Research Institute Prague, Prague, Czech Republic
Petr Roubal: MILCOM Company Limited, Prague, Czech Republic

Czech Journal of Food Sciences, 2011, vol. 29, issue SpecialIssue, S42-S48

Abstract: People suffering from lactose intolerance, cow's milk allergy or phenylketonuria or people on low-protein diet are restricted in the consumption of dairy products. Their consumers' basket should be variegated and enriched with probiotics. The main task was to evaluate important growth and metabolic characteristics of lactic acid bacteria in rice, natural rice, corn, chickpea and barley. Suspensions of the respective flours in water (8% w/w) were supplemented with glucose (1% w/w), pasteurised and fermented. Suitable combinations of cultures and substrates enable the growth of microorganisms minimally by t 2 decimal orders. This is connected with a specific shape of the acidification curve pH should be higher than 4.5 after 4-h fermentation. The vegetable samples contained lower concentrations of organic acids than milk samples because of their lower contents of the buffering substances. Fermentation did not result in any decrease in the concentration of protein or phenylalanine. Thus, special formulas of foods for people on phenylketonuria diet or low-protein diets should be conceived. Fermentation of vegetable substrates seems to be a prospective technology in functional foods manufacturing.

Keywords: non-dairy probiotic foods; growth curves; acidification curves; phenylketonuria diet; low-protein diet (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:29:y:2011:i:specialissue:id:282-2011-cjfs

DOI: 10.17221/282/2011-CJFS

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Czech Journal of Food Sciences is currently edited by Ing. Zdeňka Náglová, Ph.D.

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