National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A study was conducted to assess the effect of dipping buffalo liver in 2% Lactic Acid (LA) for 10 sec., 0.015% Sodium hypochlorite (SHC) solution for 5 sec and 10% Trisodium Phosphate (TSP) for 5 min., on its various quality characteristics. Tap water washed liver pieces were used as control. Both the control and treated liver samples were stored at refrigerated temperature (4±1°C) until visible signs of spoilage observed as indicated by colour and odour changes. The treated and control liver samples were analyzed for the effect of decontaminants on various inherent microorganisms, inoculated pathogens, sensory and physio-chemical characteristics at regular intervals. Result revealed that 2% LA and 10% TSP treatments were equally and significantly effective (p<0.01) in reducing all the inherent microbial groups on liver samples studied compared to 0.015% SHC treatment. Inoculation studies revealed that 10% TSP was significantly effective(p<0.01) in reducing Listeria monocytogenes count followed by 0.015% SHC and 2% LA on day zero of refrigerated storage and was maintained throughout the storage period studied. Salmonella count on liver samples was significantly reduced (p<0.01) by 10% TSP followed by 2% LA and 0.015% SHC. 2% LA and 10% TSP were equally and significantly effective (p< 0.01) in reducing Aeromonas count on day zero of refrigerated storage; however, upon subsequent storage, 2% LA was significantly more effective than 10% TSP in reducing the Aeromonas count.10% TSP was significantly effective in reducing Verotoxigenic E. coli counts whereas 2% LA was significantly effective in reducing Campylobacter count on buffalo liver samples immediately after the treatment. Sensory scores for odour and colour were significantly lower (p<0.01) for all treated samples than control. However, 0.015% SHC treatment resulted in significantly higher sensory score than that of 2% LA and 10% TSP treatments.
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