Rapid determination of short-chain fatty acids in colonic contents and faeces of humans and rats by acidified water-extraction and direct-injection gas chromatography

2006 ◽  
Vol 20 (8) ◽  
pp. 674-682 ◽  
Author(s):  
Guohua Zhao ◽  
Margareta Nyman ◽  
Jan Åke Jönsson
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Rapid Determination ◽  
Direct Injection ◽  
Short Chain Fatty Acids ◽  
Water Extraction ◽  
Short Chain ◽  
Chain Fatty Acids

Freeze-drying enables homogeneous and stable sample preparation for determination of fecal short-chain fatty acids

2020 ◽  
Vol 589 ◽  
pp. 113508 ◽  
Author(s):  
Jun Ueyama ◽  
Masaya Oda ◽  
Masaaki Hirayama ◽  
Kuniyo Sugitate ◽  
Norihiro Sakui ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Sample Preparation ◽  
Freeze Drying ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Chain Fatty Acids

Quantitative Gas-Chromatographic Determination of Short-Chain Fatty Acids in Aqueous Samples

1974 ◽  
Vol 20 (9) ◽  
pp. 1235-1237 ◽  
Author(s):  
Dennis P Collin ◽  
Patrick G McCormick ◽  
Milton G Schmitt
Keyword(s):  
Fatty Acids ◽  
Free Acid ◽  
Internal Standard ◽  
Short Chain Fatty Acids ◽  
Chromatographic Determination ◽  
Short Chain ◽  
Aqueous Samples ◽  
Peak Areas ◽  
Chain Fatty Acids

Abstract We report the use of SP-1200 (Supelco Inc.) for quantitative gas-chromatographic determination of short-chain fatty acids (C2-C5) in stool water. The ratio of peak areas for these acids to that for 2-methylvaleric acid (internal standard) is linear for each acid from 60 to 1800 mg/liter. Lactic acid, occasionally present in stool in abnormally high amounts, is not detectable as the free acid on SP-1200, but is determined as its propyl ester on diethyleneglycolsuccinate.

Application of a microbial sensor for determination of short-chain fatty acids in raw milk samples

1992 ◽  
Vol 195 (1) ◽  
pp. 1-2 ◽  
Author(s):  
Hiroyuki Ukeda ◽  
Gotthold Wagner ◽  
G�nther Weis ◽  
Manfred Miller ◽  
Henning Klostermeyer ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Raw Milk ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Milk Samples ◽  
Microbial Sensor ◽  
Chain Fatty Acids
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