Species and number of fungi in EM
1996
Poonpilai Suwanarit | Chulee Chaisrisook | Pasanant Duakmai | Suthisak Chadcharoen (Kasetsart Univ., Bangkok (Thailand). Faculty of Sciences. Dept. of Microbiology)
Total count of fungi in EM product lot 1, lot 2, and lot 3, at the period of 0, 8 and 16 weeks were made on PDA and Martin "s medium. The results showed that total number of fungi in each EM product were 10*[3)-10*[4) CFU/ml. Number of fungi in EM product lot 3 were lower than the others. Number of fungi at each level of EM product, surface, middle and bottom of the containers were not different. Number of fungi at 16 weeks showed tendensy to decrease. Number of fungi on PDA and Martin's meduim were not different. From the identification of fungal isolates showed that Aspergillus niger, Penicillium (light green) Penicillium (gray) and Penicillium (green and wrinkly) were found in all 3 lots of EM products. Aspergillus fumigatus, A. flavipes and Rhizopus were found only in EM product lot 1. Emericella (white), Emericella (creamy white) and Fusarium were found in EM product lot 2 and while Penicillium (grayish green) and Aspergillus flavus were found only in EM product lot 2 and Aspergillus oryzae only in EM product lot 3, Study on the viability of each fungi in each EM product were made. The result showed that in EM product lot 1 only Penicillium (light green) and Penicillium (gray) were present until 16 weeks. In EM product lot 2, Emericella (white) and Emericella (creamy white) were found and increased in 8 and 16 weeks. EM. lot 3 only Emericella (white) was found and increased until 16 weeks.
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