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Ticha Caechua. Effects of extraction solvents ratio and methylation time for the determination of fatty acids from rambutan seeds kernel by gas chromatography-flame ionization detector. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2018.
Effects of extraction solvents ratio and methylation time for the determination of fatty acids from rambutan seeds kernel by gas chromatography-flame ionization detector
Name: Sirirat Chanvaivit
Organization :
Burapha University. Department of Chemistry
Email :
sirirat@buu.ac.th
Name: Ticha Caechua
Organization :
Burapha University. Department of Chemistry
LCSH:
Gas chromatography
-- Technique
LCSH:
Methylation
LCSH:
Fatty acids
-- Analysis
LCSH:
Rambutan
Abstract:
The effect of solvents used for the extraction of fatty acids from rambutan seeds
kernel was investigated. The suitable ratio of dichloromethane-methanol-hydrochloric acid to
obtain the highest efficiency was 2:1:0.02 (v/v) followed by sonication for 10 min. The
highest peak area was received after methylation at 80 °C for 4 hours. GC-FID was
performed using DB-225 column (20 m x 0.10 mm, 0.1 um film thickness). Helium was used
as carrier gas at 0.3 mL/min. Injector and detector temperatures were 240 ºC. Injection
volume was 1 μL. Split ratio was set at 100:1. The oven program started at 150 ºC for
0.5 min, rising to 200 ºC at a rate of 100 ºC/min held for 1 min and then 220 ºC at a rate of 10
ºC/min held for 12 min. The last fatty acid came out at 15.10 min. Five main fatty acids in
Rongrean rambutan seed were Palmitic acid (C16:0) 8.20±0.16%, Palmitoleic acid (C16:1n7)
0.80±0.04%, Stearic acid (C18:0) 10.68±0.12%, Oleic acid (C18:1n9) 67.88±0.30% and
Linoleic acid (C18:2n6) 12.45±0.16%. Similar composition of fatty acids was found in
Seechompoo rambutan seed as followed: Palmitic acid 8.34±0.39%, Palmitoleic acid
0.69±0.04%, Stearic acid 11.89±0.13%, Oleic acid 66.97±0.26% and Linoleic acid
12.12±0.28%.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2018
Modified:
2562-07-03
Issued:
2019-07-03
บทความ/Article
application/pdf
BibliograpyCitation :
In Prince of Songkla University Faculty of Science. Pure and Applied Chemistry International Conference (PACCON 2018) (p.FA14-FA18). Songkla : Prince of Songkla University
eng
©copyrights King Mongkut's University of Technology North Bangkok
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0.017523 วินาที
Sirirat Chanvaivit
| Title | Contributor | Type |
|---|---|---|
| Effects of extraction solvents ratio and methylation time for the determination of fatty acids from rambutan seeds kernel by gas chromatography-flame ionization detector
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Sirirat Chanvaivit;Ticha Caechua | บทความ/Article | |
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Ticha Caechua
| Title | Contributor | Type |
|---|---|---|
| Effects of extraction solvents ratio and methylation time for the determination of fatty acids from rambutan seeds kernel by gas chromatography-flame ionization detector
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Sirirat Chanvaivit;Ticha Caechua | บทความ/Article |