Study on yeast in EM
1996
Savitree Limtong | Pacharee Titasajcha | Poonpilai Suwanarit (Kasetsart Univ., Bangkok (Thailand). Faculty of Science. Dept. of Microbiology)
Number of yeast in 2 samples of EM were not equal. In EM no.1 the number of yeast was 6.66*10*[6) CFU/ml while only 1.44*10*[5) CFU/ml was counted in EM no.2 The pH of both EM samples were relatively low, 3.25 and 3.22 During EM no.1 was stored in room temperature the number of yeast varied in the range of 10*[6)-10*[8) CFU/ml and at 19 weeks of storage 1.40*10*[7) CFU/ml was counted. While in EM no.2 yeast number continuously increased during 12 weeks of storage. After 4,8 and 12 weeks the number of yeast were 4.28*10*[5), 3.62*10*[6) and 2.06*10*[7) CFU/ml, respectively, while pH were 3.38, 4.52 and 5.32 respectively, A total of 36 isolates were collected during yeast count. They were divided into 10 groups based on their difference in colony morphology. From each group 1 isolate was randomly selected for identification from 7 isolated obtained from EM no.1, 3 isolates were identified as Candida, other 3 isolates were Kloeckera and 1 isolate was Rhodotarula. The 3 isolates from EM no.2 were Candida.
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