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Comparison of volatile profiles in Fagopyrum esculentum (buckwheat) soksungjang prepared with different starter cultures during fermentation

  • Min Kyung Park
  • Hye-Sun Choi
  • Young-Suk Kim
  • In Hee ChoEmail author
Article
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Abstract

This study investigated the differences and changes in the volatile profiles of buckwheat soksungjang (BS) inoculated with multiple microbial starters (Lactobacillus brevis + Aspergillus oryzae, BS-LA vs. Lactobacillus brevis + Bacillus amyloliquefaciens, BS-LB) during fermentation using SPME coupled with GC–MS and partial least square-discriminant analysis. BS samples fermented for 5 weeks could be differentiated from other BS samples with shorter fermentation periods, and the BS-LA and BS-LB samples fermented for 5 weeks were separated. Acids, benzenes, and esters were main volatile compounds in both BS samples, however, their differences and changes were varied. The increase of 3-methylbutanoic acid was bigger in BS-LB than BS-LA, while the contents of 2- and 3-methylbutanal were relatively higher in BS-LA than BS-LB. Furthermore, the contents of esters of BS-LA significantly increased during fermentation. These results indicate that the volatile profiles of BS samples depend on the fermentation periods and the combination of microbial starters.

Keywords

Soksungjang Soybean koji Volatile profiles Fermentation Partial least squares-discriminant analysis 

Notes

Acknowledgements

This research was supported by Basic Science Research Program through National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (Grant No. 2015R1C1A1A01055197).

Supplementary material

10068_2018_549_MOESM1_ESM.docx (55 kb)
Supplementary material 1 (DOCX 55 kb)

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Copyright information

© The Korean Society of Food Science and Technology 2019

Authors and Affiliations

  • Min Kyung Park
    • 1
  • Hye-Sun Choi
    • 2
  • Young-Suk Kim
    • 1
  • In Hee Cho
    • 3
    Email author
  1. 1.Department of Food Science and EngineeringEwha Womans UniversitySeoulKorea
  2. 2.Division of Crop Post-Harvest Technology, National Institute of Crop ScienceRural Development AdministrationSuwonKorea
  3. 3.Department of Food Science and BiotechnologyWonkwang UniversityIksanKorea

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