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Comparison of Volatile and Nonvolatile Compounds in Rice Fermented by Different Lactic Acid Bacteria
- Title
- Comparison of Volatile and Nonvolatile Compounds in Rice Fermented by Different Lactic Acid Bacteria
- Authors
- Lee, Sang Mi; Hwang, Young Rim; Kim, Moon Seok; Chung, Myung Sub; Kim, Young-Suk
- Ewha Authors
- 김영석; 이상미
- SCOPUS Author ID
- 김영석; 이상미
- Issue Date
- 2019
- Journal Title
- MOLECULES
- ISSN
- 1420-3049
- Citation
- MOLECULES vol. 24, no. 6
- Keywords
- lactic acid bacteria; volatile compounds; nonvolatile compounds; fermented rice
- Publisher
- MDPI
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The production of rice-based beverages fermented by lactic acid bacteria (LAB) can increase the consumption of rice in the form of a dairy replacement. This study investigated volatile and nonvolatile components in rice fermented by 12 different LABs. Volatile compounds of fermented rice samples were analyzed using gas chromatography-mass spectrometry (GC-MS) combined with solid-phase microextraction (SPME), while nonvolatile compounds were determined using gas chromatography-time-of-flight/mass spectrometry (GC-TOF/MS) after derivatization. The 47 identified volatile compounds included acids, aldehydes, esters, furan derivatives, ketones, alcohols, benzene and benzene derivatives, hydrocarbons, and terpenes, while the 37 identified nonvolatile components included amino acids, organic acids, and carbohydrates. The profiles of volatile and nonvolatile components generally differed significantly between obligatorily homofermentative/facultatively heterofermentative LAB and obligatorily heterofermentative LAB. The rice sample fermented by Lactobacillus sakei (RTCL16) was clearly differentiated from the other samples on principal component analysis (PCA) plots. The results of PCA revealed that the rice samples fermented by LABs could be distinguished according to microbial strains.
- DOI
- 10.3390/molecules24061183
- Appears in Collections:
- 공과대학 > 식품생명공학과 > Journal papers
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