Clinical Microbiology: Open Access

Influence of microbial consortium as a biological control agent on swine waste odor reduction

Joint Event on 25^th Asia Pacific Biotechnology Congress & 3^rd International Conference on Medical and Clinical Microbiology

May 01-02, 2019 Kyoto, Japan

Lavanya Madhavaraj, Gui-Hwan Han, Kong-Min Kim and Dae-Hyuk Kim

Center for Industrialization of Agricultural and Livestock Microorganism, Republic of Korea Chonbuk National University, Republic of Korea

Scientific Tracks Abstracts: Clin Microbiol

Abstract:

The harmful odors generating from the agricultural industry, especially from swine farm is a serious issue throughout Republic of Korea. The objective of this study was to inhibit and control the swine waste odor by the cost-effective biological control method. Therefore, we have developed a method utilizing microbial consortium that can degrade the swine waste odor without affecting the properties of waste as manure. As part of these studies, we have taken a microbial consortium of Bacillus subtilis, Rhodobacter sphaeroides and Saccharomyces cerevisiae that can be utilized as biological control method due to their property of forming a biofilm and also the reason that these organisms can grow in assimilating ammonium nitrogen which reduces ammonia emission during composting of swine waste. In addition, immobilized whole cells of Nitrosomonas eutropha that are capable of carrying out the nitrification process were also tested as an additive with the consortium. These organisms were present at a concentration as high as 1.2×109 CFU/ml (B. subtilis); 2.0×109 CFU/ml (L. plantarum); 3.9×109 CFU/ml (R. sphaeroides) and 6.7×107 CFU/ml (N. eutropha). Two batch reactions were carried out, one by mixing the consortium along with immobilized whole cells of N. eutropha and the other by using only consortium as an additive. About 35% nitrogen losses and a decrease of ammonium concentration was detected when the immobilized whole cells were added. In contrast, only 20% nitrogen loss was measured when a consortium was utilized. This study demonstrated a simple, cost-effective approach to deodorize and treat swine waste odor effectively.

Biography :

Lavanya Madhavraj is currently working as a Postdoctoral Researcher in Technical Industrialization Team, Centre for Industrialization of Agriculture and Livestock Microorganisms, handling projects in the environmental field, services for our customers for culturing microorganism and production of enzymes in bulk quantity. She has completed her PhD from Department of Environmental Engineering, Chosun University, Republic of Korea. She has hands-on experience in isolation, characterization of new aerobic and anaerobic microbes from human and environmental samples and also her research was based on biofuel production, bioremediation and biodegradation utilizing aerobic or anaerobic microbes.

E-mail: lavanyamadhavraj@gmail.com