Abstract
Blueberry purée was developed using hydrodynamic cavitation technology. The product was made from entire blueberries without adding any food additives. In this study, microbial reduction following each processing stage (at the industry setting) and after product pasteurization at 86, 88, 90, 92, 94, and 96 °C was investigated. Microbial quality including total plate counts, yeast and molds, and heat-resistant molds counts was determined. Shelf life of pasteurized products stored for up to 24 weeks at room temperature were assessed for microbial quality, soluble solids (°Brix), titratable acidity (citric acid %), pH, viscosity (cP) and flow rate (cm/30 s). Our results indicated that heat-resistant molds, initially present in frozen blueberries with counts at 2.03 log CFU/200g, were totally inactivated at 94 to 96 °C with 1 to 2 min holding time. Shelf life study showed that no product spoilage was caused by bacteria, yeasts and heat-resistant molds along with non-significant changes of textural characteristics. This study provided useful information for the food industry to develop variety of fruit purée products with no wastes of fruit materials. This study provides useful information for the food industry to develop safe liqui...Continue Reading
References
Jul 11, 1991·Applied and Environmental Microbiology·G ScherbaW D O'Brien
Jan 1, 1994·Critical Reviews in Microbiology·V Tournas
Dec 1, 1995·International Journal of Food Microbiology·R G EarnshawR M Hurst
Aug 8, 1998·Biotechnology Progress·I Z ShirgaonkarA B Pandit
Nov 27, 1998·Journal of Applied Microbiology·J RasoS Condón
Sep 25, 2003·Journal of Food Protection·M ZenkerD Knorr
Oct 7, 2003·International Journal of Food Microbiology·P PiyasenaR C McKellar
Dec 14, 2005·Applied and Environmental Microbiology·J RasoF J Sala
Jun 3, 2006·Biotechnology Progress·B Balasundaram, S T L Harrison
Nov 24, 2007·Journal of Food Science·P J MillyD Armstead
Oct 23, 2008·Journal of Food Protection·Yutaka KikokuHiroyuki Nakano
Feb 26, 2009·Journal of Food Science·P J MillyD Armstead
Mar 21, 2009·Journal of Applied Microbiology·A S Sant'anaP R Massaguer
Apr 1, 1978·Journal of Food Protection·D I Murdock, W S Hatcher
Sep 1, 1992·Journal of Food Protection·Dorothy M Wrigley, Natalie G Llorca
Citations
Nov 1, 2020·Foods·Liliana Pérez-LavalleAntonio Valero
May 4, 2021·Critical Reviews in Food Science and Nutrition·Ying FanAndrew J MacIntosh
Feb 16, 2019·Ultrasonics Sonochemistry·Ruly Terán HilaresJúlio César Santos