| Title: | In situ riboflavin fortification of different kefir-like cereal-based beverages using selected Andean LAB strains |
| Author(s): | Yepez A; Russo P; Spano G; Khomenko I; Biasioli F; Capozzi V; Aznar R; |
| Address: | "Department of Microbiology and Ecology, University of Valencia. Av. Dr. Moliner 50, 46100, Burjassot, Valencia, Spain. Department of Science of Agriculture, Food and Environment, University of Foggia, Via Napoli 25, Foggia, 71122, Italy. Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38010, San Michele All' Adige (TN), Italy. Department of Microbiology and Ecology, University of Valencia. Av. Dr. Moliner 50, 46100, Burjassot, Valencia, Spain; Department of Preservation and Food Safety Technologies. Institut of Agrochemistry and Food Technology (IATA-CSIC). Calle Agustin Escardino 7, 46980, Paterna, Valencia, Spain; Spanish Type Culture Collection (CECT). University of Valencia. Calle Agustin Escardino 9, 46980, Paterna, Valencia, Spain. Electronic address: rosa.aznar@uv.es" |
| ISSN/ISBN: | 1095-9998 (Electronic) 0740-0020 (Linking) |
| Abstract: | "Cereal-based functional beverages represent social, economic, and environmental sustainable opportunities to cope with emerging trends in food consumption and global nutrition. Here we report, for the first time, the polyphasic characterization of three cereal-based kefir-like riboflavin-enriched beverages, obtained from oat, maize and barley flours, and their comparison with classical milk-based kefir. The four matrices were successfully fermented with commercial starters: i) milk-kefir and ii) water-kefir, proving the potential of cereal ingredients in the formulation of dairy-like fermented beverages with milk-kefir starter behavior better in these matrices. In the light of their potentiality, seven riboflavin-producing Andean Lactic Acid Bacteria (LAB) were tested for tolerance to food stresses commonly encountered during food fermentation. Moreover, the LAB strains investigated were screened for spontaneous riboflavin overproducing derivatives. Lactobacillus plantarum M5MA1-B2 with outstanding response to stress, was selected to improve riboflavin content in an in situ fortification approach. The combination of L. plantarum M5MA1-B2 riboflavin overproducing strain with milk kefir starter in oat, lead to cover, for one serving of 100?ª+g, 11.4% of Recommended Dietary Allowance (RDA). Besides, addition of L. plantarum M5MA1-B2 improved performance of water kefir in oat and maize matrices. Proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-ToF-MS) analysis provided the on-line Volatile Organic Compounds profiles supporting the best combination of starter, LAB and cereal matrix for novel functional foods development" |
| Keywords: | Animals Avena Beverages/*microbiology Cultured Milk Products Edible Grain/anatomy & histology/*microbiology Fermentation Flour Food Microbiology Kefir/analysis/*microbiology Lactobacillales/*metabolism Lactobacillus plantarum/metabolism Leuconostoc mesent; |
| Notes: | "MedlineYepez, Alba Russo, Pasquale Spano, Giuseppe Khomenko, Iuliia Biasioli, Franco Capozzi, Vittorio Aznar, Rosa eng England 2018/10/10 Food Microbiol. 2019 Feb; 77:61-68. doi: 10.1016/j.fm.2018.08.008. Epub 2018 Aug 20" |
