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 to assess the effect of dipping buffalo rumen samples in 2% Lactic Acid (LA) for 10 sec., 150 ppm Chlorinated water (CW) for 5 sec and 10% Trisodium Phosphate (TSP) for 5 min., on its various quality characteristics was conducted. Tap water washed rumen pieces were used as control. Both the control and treated samples were stored at refrigerated temperature (4±1°C) until visible signs of spoilage observed as indicated by sensory scores. The treated and control rumen 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 were equally and significantly more effective (p<0.01) in reducing total viable, Coliforms, Staphylococcal and E. coli counts than 150 ppm CW, both immediately after treatment as well as during the storage at refrigerated (4±1°C) condition. Sensory scores for odour and colour were significantly lower (p<0.01) for all treated samples than control. The colour scores did not differ significantly among the treatments. However, 10% TSP and 150 ppm CW treatments resulted in significantly higher odour scores than 2% LA treatment. 10% TSP treatment was most effective in reducing L. monocytogenes count followed by 150 ppm CW and 2% LA and the inhibitory effect was maintained throughout the storage period. Conversely, 10% TSP treatment was most effective in reducing Salmonella count only on day zero of refrigerated storage; upon subsequent storage, 10% TSP and 2% LA were equally effective in reducing Salmonella count. 2% LA and 10% TSP were equally and significantly effective in reducing Aermonas count throughout the storage period studied. 10% TSP was most effective in reducing verotoxigenic E. coli count whereas it was 2% LA with respect to Campylobacter count.
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