| Title: | "Evaluation of microfiltration and heat treatment on the microbiological characteristics, phenolic composition and volatile compound profile of pomegranate (Punica granatum L.) juice" |
| Author(s): | Colantuono A; Vitaglione P; Manzo N; Blaiotta G; Montefusco I; Marrazzo A; Pizzolongo F; Romano R; |
| Address: | "Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: Since processing technology and storage may influence the sensory and nutritional value as well as the shelf life of pomegranate juice (PJ), mild technologies based on microfiltration may be a promising alternative to heat treatments for fruit juice preservation. In this study, physicochemical and microbiological properties of raw (RPJ), microfiltered (MPJ) and cloudy pasteurized (PPJ) PJ were compared over a period of 4 weeks. RESULTS: Data demonstrated that microfiltration was comparable to pasteurization in guaranteeing microbiological stability of the juice, avoiding spoilage of the final product. After treatment, PPJ showed the highest amounts of gallic acid (GA) and ellagic acid derivatives (EAs). During storage, the amount of ellagitannins, EAs and GA similarly decreased in all types of juice. Trends towards variations of monomeric anthocyanins in MPJ and variations of polymeric and copigmented anthocyanins in both MPJ and PPJ were found over storage. CONCLUSION: The optimization of pretreatments and filtration parameters can lead to the industrial scale-up of microfiltration technology for the development of high-quality non-heat-treated PJ. (c) 2017 Society of Chemical Industry" |
| Keywords: | Anthocyanins/analysis Chemical Phenomena Ellagic Acid/analysis Filtration/*methods Food Handling/*methods Food Microbiology Food Preservation Fruit and Vegetable Juices/*analysis/microbiology Gallic Acid/analysis Hot Temperature Hydrolyzable Tannins/analy; |
| Notes: | "MedlineColantuono, Antonio Vitaglione, Paola Manzo, Nadia Blaiotta, Giuseppe Montefusco, Immacolata Marrazzo, Andrea Pizzolongo, Fabiana Romano, Raffaele eng Comparative Study England 2017/12/15 J Sci Food Agric. 2018 Jul; 98(9):3324-3332. doi: 10.1002/jsfa.8836. Epub 2018 Feb 7" |
