Analysis of the Bacterial Community during the Storage of Gorosoe(Acer mono Max.) Sap

고로쇠 수액의 저장 중 세균군집 분석

  • Oh, Jung-Hwan (Division of Forest Insect Pests & Diseases, Korea Forest Research Institute) ;
  • Seo, Sang-Tae (Division of Forest Insect Pests & Diseases, Korea Forest Research Institute) ;
  • Oh, Hye-Young (Division of Forest Insect Pests & Diseases, Korea Forest Research Institute) ;
  • Hong, Jin-Sung (Institute of Nature Science, Seoul Women's University) ;
  • Kang, Ha-Young (Division of Forest Insect Pests & Diseases, Korea Forest Research Institute)
  • 오정환 (국립산림과학원 산림병해충연구과) ;
  • 서상태 (국립산림과학원 산림병해충연구과) ;
  • 오혜영 (국립산림과학원 산림병해충연구과) ;
  • 홍진성 (서울여자대학교 자연과학연구소) ;
  • 강하영 (국립산림과학원 산림병해충연구과)
  • Published : 2009.12.31

Abstract

The composition of the bacterial populations in Gorosoe(Acer mono Max.) sap was characterized during storage with different heat treatments($63^{\circ}C$ for 30 min and $73^{\circ}C$ for 15 sec). The saps were aseptically collected at 0, 15 and 30 days of storage and analyzed by dilution plating and 16S rDNA PCR-DGGE analysis. There were significant differences in the total number of colony forming units(CFUs) of bacteria between heated and nonheated saps. Bacteria of nonheated sap were present at a level of $3.4{\times}10^7CFU/m{\ell}^{-1}$, whereas living bacteria were not detected in the heated sap. According to the 16S rDNA sequence and DGGE analysis, Pseudomonas sp. was the most abundant bacterial strain in the samlpes, and the bacterial community structures become more simplified with time and were composed of the Chryseobacterium sp. with time. These results allowed us to characterize the dominant bacteria involved in Gorosoe sap and to better understand their dynamics throughout storage.

Keywords

References

  1. Blackall LL. 1994. Molecular identification of activated sludge foaming bacteria. Water Sci Technol 29:35-42
  2. Choi SY, Sung NJ, Kim HJ. 2006. Physicochemical analysis and sensory evaluation of fermented soy sauce from Gorosoe (Acer mono Max.) and Kojesu (Betula costata T.) saps. Korean J Food & Nutr 19:318-326
  3. Chung MJ, Jo JS, Kim HJ, Sung NJ. 2001. The components of the fermented soy sauce from Gorosoe and Bamboos sap. Korean J Food & Nutr 14:167-174
  4. Johnsen K. Nielsen P. 1999. Diversity of Pseudomonas strains isolated with King's B and Gould's S1 agar determined by repetitive extragenic palindromic-polymerase chain reaction, 16S rDNA sequencing and Fourier transform infrared spectroscopy characterization. FEMS Microbiol Lett 173:155-162 https://doi.org/10.1111/j.1574-6968.1999.tb13497.x
  5. Kauffeld J. 1990. Sweet future. Ohio 21:4-5
  6. Kim CM, Jung DL. Seo HJ. 1991. A study on the ingredients in the sap of Acer mono Max, and Betula costata T. in Mt. Jiri area. J Korean Soc Food Nutr 20:479-482
  7. Korea Forest Service. 2002. Statistical yearbook of forestry. 32
  8. Kwon SD. 2003. A study on the sap of Acer mono, Acer mono for. rubripes and Acer okamotoanum. Unpublished doctoral dissertation, Gyeongsang Uni
  9. Lagace L, Pitre M, Jacques M. Roy D. 2004. Identification of the bacterial community of maple sap by using amplified ribosomal DNA (rDNA) restriction analysis and rDNA sequencing. Appl Environ Microbiol 70:2052-2060 https://doi.org/10.1128/AEM.70.4.2052-2060.2004
  10. Ministry of Environment, Republic of Korea. 2002. Drinking Water Quality Standard
  11. Moon HS, Park SB, Kwon SD, Koo JU. 2004. Bleeding of painted maple in Mt. Jiri area and component analysis. Korean J Ecol 27:263-267 https://doi.org/10.5141/JEFB.2004.27.5.263
  12. Muyzer G, de Waal EC, Uitterlinden AG. 1993. Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA. Appl Enviro Microbiol 59:695-700
  13. Muylaert K, van der Cucht K, Vloemans N, Meester LD. 2002. Relationship between bacterial community composition and Bottom-Up versus Top-Down variables in four eutrophic shallow lakes. Appl Envir Microbiol 68:133-139 https://doi.org/10.1128/AEM.68.10.4740-4750.2002
  14. Muyzer G, Smalla K. 1998. Application of denaturing gradient gel electrophoresis (DGGE) and temperature gradient gel electrophoresis (TGGE) in microbial ecology. Antonie van Leeuwenhoek 73:127-141 https://doi.org/10.1023/A:1000669317571
  15. Park HS, Song WD. Na CS. 1989. Relationship with sap volume, growth and temperature in Mt. Baekun area. Report of Forest Bleeding Research 25:30-34
  16. Terazawa K, Kikuzawa K. 1994. Effects of flooding on leaf dynamics and other seeding responses in flood-tolerant Alnus japonica and flood-intolerant Betula platyphylla var. japonica. Tree Physiol 14:251-261 https://doi.org/10.1093/treephys/14.3.251