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http://dx.doi.org/10.4489/KJM.2012.40.4.254

Decrease efficiency of Offensive Odor from Pig Excreta by Yeast Strain, Pichia farinosa NASS-2 Isolated from Soy Bean Paste  

Yoo, Jae Hong (Agricultural Microbiology Division, National Academy of Agricultural Science, Rural Development Administration)
Park, In Cheol (Agricultural Microbiology Division, National Academy of Agricultural Science, Rural Development Administration)
Kim, Wan Gyu (Agricultural Microbiology Division, National Academy of Agricultural Science, Rural Development Administration)
Publication Information
The Korean Journal of Mycology / v.40, no.4, 2012 , pp. 254-257 More about this Journal
Abstract
The different microbial species were isolated from soy bean paste samples. A yeast strain NASS-2 was effective to decrease odor activity on pig excreata was identified as Pichia farinosa based on nucleotide sequences of 18S ribosomal DNA and Internal transcribed space (ITS). The extracellular fraction of P. farinosa NASS-2 was effective to decrease odor activity of pig excrements. Optimal medium component for decreasing order activity on odor material composed of soluble starch 2.0% (w/v) and yeast extract 0.8% (v/v). The decrease of odor material was maximum at $28^{\circ}C$ for 72 hours with pH 5.5. When the P. farinosa NASS-2 culture broth was treated to pig excrements, the removal efficiency was an average concentration with 1.38 ppm of ammonia gas.
Keywords
Odor material; Pichia farinosa; Pig excrements; Soy bean paste;
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