Viability of L.casei in symbiotic carrot juice during fermentation and storage

Petreska Ivanovska, Tanja and Petrusevska Tozi, Lidija and Hadzieva, Jasmina and Smilkov, Katarina and Geskovski, Nikola and Mladenovska, Kristina (2011) Viability of L.casei in symbiotic carrot juice during fermentation and storage. In: Fifth Congress of Pharmacy of Macedonia with International Participation, 21–25 Sept 2011, Ohrid, Macedonia.

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Abstract

Although dairy products are generally good matrices for the delivery of probiotics to humans and traditionally the most used, fruit juices are of growing interest, due to their pleasant taste profile and refreshing characteristics. However, the low survival rate of probiotics in fruit juices resulting from acid environment is of concern.In this study, carrot juice was inoculated with free probiotic cells of L. casei and symbiotic microparticles loaded with L. casei to compare the survival rate of the rpobiotic during fermentation and storage of the symbiotic beverages at 4oC for 6 weeks. The results showed that the survival rate of free probiotic cells in carrot juice was below the therapeutic level at the end of the test due to their sensitivity to the acidic conditions in the medium and need protection to maintain the viability during storage. Results also showed that adding of encapsulated L. casei in carrot juice as symbiotic chitosan-Ca-alginate might solve the problem. Regarding the sensory characteristics of the carrot juice with microparticles, non-significant changes of the textural quality due to the low particle size was observed. Therefore, carrot juice containing symbiotic microparticles may be a new functional product and the effect of particles on the consumers acceptance should be further studied.

Item Type: Conference or Workshop Item (Speech)
Subjects: Natural sciences > Biological sciences
Natural sciences > Chemical sciences
Medical and Health Sciences > Health biotechnology
Medical and Health Sciences > Health sciences
Medical and Health Sciences > Other medical sciences
Divisions: Faculty of Medical Science
Depositing User: Katarina Smilkov
Date Deposited: 02 Apr 2015 09:35
Last Modified: 02 Apr 2015 09:35
URI: http://eprints.ugd.edu.mk/id/eprint/13003

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