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Park C, Yun KE, Chu JM, Lee JY, Hong CP, Nam YD, Jeong J, Han K, Ahn YJ. Performance comparison of fecal preservative and stock solutions for gut microbiome storage at room temperature. J Microbiol 2020; 58:703-710. [PMID: 32583287 DOI: 10.1007/s12275-020-0092-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/06/2020] [Accepted: 05/27/2020] [Indexed: 12/17/2022]
Abstract
The gut microbiome, which is symbiotic within the human body, assists in human digestion. It plays significant roles in identifying intestinal disease as well as in maintaining a healthy body with functional immune and metabolic activities. To confirm the consistency of fecal intestinal microbial research, it is necessary to study the changes in intestinal microbial flora according to the fecal collection solution and storage period. We collected fecal samples from three healthy Korean adults. To examine the efficacy of fecal collection solution, we used NBgene-Gut, OMNIgene-Gut, 70% ethanol (Ethanol-70%), and RNAlater. The samples were stored for up to two months at room temperature using three different methods, and we observed changes in microbial communities over time. We analyzed clusters of changes in the microbial flora by observing fecal stock solutions and metagenome sequencing performed over time. In particular, we confirmed the profiling of alpha and beta diversity and microbial classification according to the differences in intestinal environment among individuals. We also confirmed that the microbial profile remained stable for two months and that the microbial profile did not change significantly over time. In addition, our results suggest the possibility of verifying microbial profiling even for long-term storage of a single sample. In conclusion, collecting fecal samples using a stock solution rather than freezing feces seems to be relatively reproducible and stable for GUT metagenome analysis. Therefore, stock solution tubes in intestinal microbial research can be used without problems.
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Affiliation(s)
- Chanhyeok Park
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea
| | - Kyeong Eui Yun
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea
| | - Jeong Min Chu
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea
| | - Ji Yeon Lee
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea
| | - Chang Pyo Hong
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea
| | - Young Do Nam
- Research Group of Healthcare, Korea Food Research Institute, Jeollabuk-do, 55365, Republic of Korea
| | - Jinuk Jeong
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Kyudong Han
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.
| | - Yong Ju Ahn
- Theragen Bio Co., Ltd., Suwon, Gyeonggi-do, 16229, Republic of Korea.
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