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Patcharee Pripdeevech. Analysis of volatile compounds from Arabica coffee incubated with culture supernatants of lactic acid bacteria. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2019.
Analysis of volatile compounds from Arabica coffee incubated with culture supernatants of lactic acid bacteria
Name: Patcharee Pripdeevech
Organization :
Mae Fah Luang University. School of Science
Email :
patcharee.pri@mfu.ac.th
LCSH:
Volatile organic compounds
-- Analysis
LCSH:
Coffee
Abstract:
Ripe Arabica coffee beans were soaked in water, de man rogosa and sharpe (MRS) agar, and incubated with culture supernatant obtained from two lactic acid bacteria including Lactobacillus bulgaricus and L. acidophilus for three days prior washing and drying in oven at 45 Celsius degrees to obtain a moisture content of 8-12%. They were then roasted at 185 Celsius degrees for 10 min and analyzed for volatile compounds using solid phase microextraction-gas chromatography-mass spectrometry. Two major volatile profiles were obtained, which corresponding to water and MRS soaking, and lactic acid bacterial supernatant incubation. Forty-one volatile compounds were identified among all samples. Two-furancarboxaldehyde and 2-furanmethanol were major compounds in samples from all treatments. The lactic acid bacteria-incubated Arabica coffee beans exhibited significantly higher amounts of vanillin and methyl vanillin than those exposed to water and MRS soaking. This may be resulted from the activity of extracellular enzymes produced by the lactic acid bacteria. Incubation of Arabica coffee beans with culture supernatant of lactic acid bacteria significantly enhanced the amounts of volatile compounds in the beans, without changing the volatile composition of the coffee. This study provides a safe and relatively inexpensive method to recover more volatile compounds in a short period of time
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2019
Modified:
2019-08-29
Issued:
2019-08-29
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn. Pure and Applied Chemistry International Conference 2019 (PACCON 2019) (AC88-93). Bangkok : Mahidol University
eng
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Patcharee Pripdeevech