| Title: | Comparative study of submerged and surface culture acetification process for orange vinegar |
| Author(s): | Cejudo-Bastante C; Duran-Guerrero E; Garcia-Barroso C; Castro-Mejias R; |
| Address: | "Chemical Engineering and Food Technology Department, University of Cadiz, Puerto Real, Spain. Analytical Chemistry Department, University of Cadiz, Puerto Real, Spain" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: The two main acetification methodologies generally employed in the production of vinegar (surface and submerged cultures) were studied and compared for the production of orange vinegar. Polyphenols (UPLC/DAD) and volatiles compounds (SBSE-GC/MS) were considered as the main variables in the comparative study. Sensory characteristics of the obtained vinegars were also evaluated. RESULTS: Seventeen polyphenols and 24 volatile compounds were determined in the samples during both acetification processes. For phenolic compounds, analysis of variance showed significant higher concentrations when surface culture acetification was employed. However, for the majority of volatile compounds higher contents were observed for submerged culture acetification process, and it was also reflected in the sensory analysis, presenting higher scores for the different descriptors. Multivariate statistical analysis such as principal component analysis demonstrated the possibility of discriminating the samples regarding the type of acetification process. Polyphenols such as apigenin derivative or ferulic acid and volatile compounds such as 4-vinylguaiacol, decanoic acid, nootkatone, trans-geraniol, beta-citronellol or alpha-terpineol, among others, were those compounds that contributed more to the discrimination of the samples. CONCLUSION: The acetification process employed in the production of orange vinegar has been demonstrated to be very significant for the final characteristics of the vinegar obtained. So it must be carefully controlled to obtain high quality products. (c) 2017 Society of Chemical Industry" |
| Keywords: | Acetic Acid/*chemistry/metabolism Citrus sinensis/*chemistry/microbiology Fermentation Flavoring Agents/chemistry/metabolism Food Microbiology/*methods Gas Chromatography-Mass Spectrometry Humans Polyphenols/chemistry/metabolism Saccharomyces/metabolism T; |
| Notes: | "MedlineCejudo-Bastante, Cristina Duran-Guerrero, Enrique Garcia-Barroso, Carmelo Castro-Mejias, Remedios eng Comparative Study England 2017/07/20 J Sci Food Agric. 2018 Feb; 98(3):1052-1060. doi: 10.1002/jsfa.8554. Epub 2017 Aug 25" |
