Volume 8, Issue 33 (2011)
FSCT 2011, 8(33): 43-50 |
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Antifungal properties of CMC-based films containing potassium sorbate on selected Aspergillus strains in pistachio. FSCT 2011; 8 (33) :43-50
URL: http://fsct.modares.ac.ir/article-7-353-en.html
URL: http://fsct.modares.ac.ir/article-7-353-en.html
Abstract: (4670 Views)
In this study, antimicrobial effects of the carboxymethyl celloluse (CMC) based-edible films containing 1-4% potassium sorbate (as a antimicrobial agent), were tested against Aspergillus flavus (PTCC 5004), Aspergillus parasiticus (PTCC 5286) and Aspergillus parasiticus (PTCC 5018) by using agar diffusion assay. The films containing 1 and 2 % potassium sorbate showed the inhibitory zone against first and second molds however, they were not effective against Aspergillus parasiticus (PTCC 5018) at these levels of antimicrobial compound. Maximum inhibition zone was observed in 3 and 4% potassium sorbate for all molds. Fresh pistachios were purchased from local market and immersed in aqueous filmogenic solutions of CMC with different concentrations of sorbate (0.25, 0.5 and 1%). In uncoated pistachios, molds counting, showed 2.02×106 CFUg-1 while in the coated samples there was no growth of any molds.
Received: 2009/08/15 | Accepted: 2010/01/11 | Published: 2011/12/28
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