Back to Search
Start Over
Chemical Compositions and Aroma Evaluation of Volatile Oil from the Industrial Cultivation Medium of Enterococcus faecalis.
- Source :
-
Journal of oleo science [J Oleo Sci] 2015; Vol. 64 (10), pp. 1125-33. Date of Electronic Publication: 2015 Sep 15. - Publication Year :
- 2015
-
Abstract
- Enterococcus faecalis is one of the major lactic acid bacterium (LAB) species colonizing the intestines of animals and humans. The characteristic odor of the volatile oils obtained from both the liquid medium after incubation (MAI) and liquid medium before incubation (MBI) in the cultivation process of E. faecalis was investigated to determine the utility of the liquid medium. In total, fifty-six and thirty-two compounds were detected in the volatile oils from the MAI (MAI oil) and MBI (MBI oil), respectively. The principle components of MAI oil were 2,5-dimethylpyrazine (19.3%), phenylacetaldehyde (19.3%), and phenylethyl alcohol (9.3%). The aroma extract dilution analysis (AEDA) method was performed using gas chromatography-olfactometry (GC-O). The total number of aroma-active compounds identified in the volatile oil from MBI and MAI was thirteen compounds; in particular, 5-methyl-2-furanmethanol, phenylacetaldehyde, and phenylethyl alcohol were the most primary aroma-active compounds in MAI oil. These results imply that the industrial cultivation medium after incubation of E. faecalis may be utilized as a source of volatile oils.
- Subjects :
- Acetaldehyde analogs & derivatives
Acetaldehyde analysis
Acetaldehyde isolation & purification
Bacteriological Techniques
Chromatography, Gas
Indicator Dilution Techniques
Oils, Volatile isolation & purification
Olfactometry
Phenylethyl Alcohol analysis
Phenylethyl Alcohol isolation & purification
Pyrazines analysis
Pyrazines isolation & purification
Culture Media chemistry
Enterococcus faecalis metabolism
Odorants analysis
Oils, Volatile analysis
Oils, Volatile chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1347-3352
- Volume :
- 64
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Journal of oleo science
- Publication Type :
- Academic Journal
- Accession number :
- 26369592
- Full Text :
- https://doi.org/10.5650/jos.ess15098