title: Microbial community, and biochemical and physiological properties of Korean traditional black raspberry (Robus coreanus Miquel) vinegar.
abstract: BACKGROUND
  The aim of this study was to elucidate the changes in microbial community and biochemical and physiological properties of traditional Muju black raspberry (Robus coreanus Miquel) vinegar (TMBV) during fermentation by culture-independent methods.
  
  
  RESULTS
  During vinegar fermentation, ethanol produced up to 120 g L(-1) until day 35, with continuously increasing yeast concentration to a total of log 7.6 CFU mL(-1) . After day 35, acetic acid bacteria (AAB) concentrations rose to log 5.8 CFU mL(-1) until day 144. Denaturing gradient gel electrophoresis analysis showed that Saccharomyces cerevisiae was detected until day 87 of the fermentation, at which point Acetobacter pasteurianus gradually took over as the dominant species. Total sugar was reduced to 6.6 °Brix and total acidity produced up to 44 g L(-1) .
  
  
  CONCLUSIONS
  In this study, we established the physicochemical analysis and growth dynamics of yeast and AAB during alcoholic and acetic acid fermentation of black raspberry by a traditional method. Overall, S. cerevisiae and A. pasteurianus species appeared to dominate the TMBV fermentation. In conclusion, this study demonstrated a suitable fermentation system for TMBV by the static surface method. © 2015 Society of Chemical Industry.
authors.affiliation: Department of Food Science and Human Nutrition, and Fermented Food Research Center, Chonbuk National University, Jeonju, 561-756, South Korea.
authors.forename: Nho-Eul
authors.initials: NE
authors.lastname: Song
authors.affiliation: Microbial Institute for Fermentation Industry, Sunchang, 595-804, South Korea.
authors.forename: Sung-Ho
authors.initials: SH
authors.lastname: Cho
authors.affiliation: Department of Food Science and Human Nutrition, and Fermented Food Research Center, Chonbuk National University, Jeonju, 561-756, South Korea.
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Baik
mesh_terms: D019342:Acetic Acid; D000091:Acetobacter / Q000254:growth & development / Q000378:metabolism; D000143:Acids / Q000378:metabolism; D001419:Bacteria / Q000254:growth & development / Q000378:metabolism; D050260:Carbohydrate Metabolism; D058645:Denaturing Gradient Gel Electrophoresis; D000431:Ethanol / Q000378:metabolism; D005285:Fermentation; D005516:Food Microbiology; D005638:Fruit / Q000378:metabolism / Q000382:microbiology*; D006801:Humans; D065856:Rubus; D012441:Saccharomyces cerevisiae / Q000254:growth & development / Q000378:metabolism
chemical_list: D000143:Acids; D000431:Ethanol; D019342:Acetic Acid
keywords: fermentation; microorganisms; vinegar; yeast