Preliminary Screening and Selection of Lactic Acid Bacteria with Potential Probiotic Properties from Fermented Meat Products
Main Article Content
Abstract
The aims of this study were preliminary screen and select for preliminary property of potential
probiotic lactic acid bacteria (LAB) isolated from fermented meat products. The LABs were isolated from
fermented meat products 42 samples such as pork Nham, chicken Nham, beef Nham and fermented
sausages that in Bangkok ’s local markets. Among 325 LAB isolates obtained, 237 isolates (72.92%) and
17 isolates (5.23 %) showed excellent and well growth rate, respectively. The antibacterial activity of LABs
against 4 pathogenic bacteria namely, Staphylococcus aureus, Listeria monocytogenes, Salmonella
Typhimurium and Escherichia coli, was detected by agar spot test. The growth of all pathogens was
inhibited by 26 LAB isolates (10.24%). In acid condition at pH 3 and 4, the 3 and 26 LAB isolates survived
in range of 101 - 102 and 101 – 104 cfu/ml, respectively. However, all LAB isolates tolerated and grew in 0.3,
0.6 and 1% bile salt conditions. The 8 LAB isolates tolerated at pH 2-3 condition and grew more than 60%
in 1% bile salt condition that are preliminary probiotic property. These LABs are suitable probiotic culture
for application in fermented meat products.
Article Details
King Mongkut's Agricultural Journal
References
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