Changes in isomaltooligosaccharides during fermentation of Makgeolli
2022
Noh, D.H. | Jeong, S.T. | Park, B.R. | Kim, Y.S. | Lim, B.R.
This study aimed to investigate the differences in the isomaltooligosaccharides present during Makgeolli production according to the type of Nuruk used, fermentation period, and presence of microorganisms. Makgeolli was fermented for 15 days using three kinds of Nuruk (Soyul, Sansung, and Jinju) with and without microbial growth inhibitors. Isomaltooligosaccharide contents were analyzed using high performance anion exchange chromatography. The most abundant isomaltooligosaccharide was panose, which was highest in Makgeolli produced using Soyul Nuruk (SH) on day 6 (24.7 mM), followed by Makgeolli prepared using Sansung Nuruk (SS) on day 2 (18.2 mM) and Makgeolli prepared using Jinju Nuruk (JJ) on day 3 (10.8 mM). Isomaltotriose and isomaltotetraose, which were generated in the control, were not detected when microbial growth was suppressed. Based on these results, isomaltooligosaccharide production is affected more by the enzymes produced by microorganisms during Makgeolli fermentation than by Nuruk itself.
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