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Meat Sci. 2007 Apr;75(4):603-9. doi: 10.1016/j.meatsci.2006.09.008. Epub 2006 Nov 13.

Quality and shelf life evaluation of fermented sausages of buffalo meat with different levels of heart and fat.

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Department of Post Harvest Engineering and Technology, Aligarh Muslim University, Aligarh 202 002, India.


Investigations were carried to study the effect of heart incorporation (0%, 15% and 20%) and increasing levels of fat (20% and 25%) on physicochemical (pH, moisture content and thiobarbituric acid, TBA number) and microbiological (total plate count and yeast and mold count) quality and shelf life of semi dry sausages of buffalo meat during refrigerated storage (4°C). Different levels of fat significantly (p<0.05) increased the pH of the sausage samples. However different levels of heart incorporation did not significantly (p<0.05) affect pH, moisture content and TBA number of sausage samples. Fresh samples had pH, moisture content and TBA number in the range of 5.15-5.28, 42.4-47.4% and 0.073-0.134 respectively. Refrigerated storage significantly (p<0.05) increased TBA number of control samples while storage did not significantly (p<0.05) increase the TBA number of sodium ascorbate (SA) treated samples. Total plate counts of twelve sausage samples were f under the TFTC (too few to count) limit at the initial stage. Incorporation of different levels of heart and also increasing levels of fat did not significantly (p<0.05) increase the log TPC/g values. Yeast and molds were not detected in twelve samples of semi dry fermented sausages in their fresh condition. Storage revealed that there was a consistent decrease in pH, and moisture content. Refrigerated storage significantly (p<0.05) reduced both pH and moisture contents. TBA number and total plate counts and yeast and mold counts of controls were found to increase significantly (p<0.05) during refrigerated storage. However, in SA treated sausage, only TPC and yeast and mold count significantly (p<0.05) increased during refrigerated storage. Shelf life of the sausages was found to be 60 days under refrigerated storage (4°C).

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