Residual hexane in meals

1983 ◽  
Vol 60 (2Part1) ◽  
pp. 220-223 ◽  
Author(s):  
J. -P. Wolff
Keyword(s):  
Residual Hexane

Gas Chromatographic Determination of Residual Hexane in Modified Hop Extract

1972 ◽  
Vol 55 (6) ◽  
pp. 1226-1227
Author(s):  
Mark A Litchman ◽  
Lewis A Turano ◽  
Ronald P Upton
Keyword(s):  
Liquid Chromatography ◽  
Quantitative Determination ◽  
Chromatographic Determination ◽  
Methanol Solution ◽  
Chromatographic Column ◽  
Gas Liquid Chromatography ◽  
Porapak Q ◽  
Residual Hexane ◽  
Head Space

Abstract A method is described for the quantitative determination of hexane in modified hop extract by head-space gas-liquid chromatography. A sample of extract is weighed into a serum vial and water-methanol solution is added. The vial is sealed tightly and heated 1 hr in a 70°C bath. A sample of the head-space gas over the solution is injected onto a Porapak Q gas chromatographic column for determination. Recovery of 2–29 ppm hexane added to potassium isohumulone was 95.5–114.8%. The method may be applicable to other hop extracts.

Direct sampling of orujo oil for determining residual hexane by using a chemsensor

2003 ◽  
Vol 80 (6) ◽  
pp. 613-618 ◽  
Author(s):  
F. Peña ◽  
S. Cárdenas ◽  
M. Gallego ◽  
M. Valcárcel
Keyword(s):  
Residual Hexane ◽  
Direct Sampling

A rapid procedure for the determination of residual hexane in oilseed meals and flours

1972 ◽  
Vol 49 (2) ◽  
pp. 129-131 ◽  
Author(s):  
Sara P. Fore ◽  
H. P. Dupuy
Keyword(s):  
Rapid Procedure ◽  
Residual Hexane

Determination of residual hexane in solvent extracted meals

1977 ◽  
Vol 54 (11) ◽  
pp. 542-544 ◽  
Author(s):  
P. J. Wan ◽  
M. Chittwood ◽  
C. M. Cater ◽  
K. F. Mattil
Keyword(s):  
Residual Hexane

scholarly journals An analysis method for determining residual hexane in health functional food products using static headspace gas chromatography

2017 ◽  
Vol 26 (2) ◽  
pp. 363-368 ◽  
Author(s):  
Eun-Jeong Jeong ◽  
Sang Hwa Lee ◽  
Beom-Tea Kim ◽  
Gunyoung Lee ◽  
Sang Soon Yun ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Functional Food ◽  
Food Products ◽  
Headspace Gas Chromatography ◽  
Static Headspace ◽  
Analysis Method ◽  
Residual Hexane ◽  
Static Headspace Gas Chromatography ◽  
Headspace Gas

Microbial Fermentation Extraction Processing of Protein from Soybean

2011 ◽  
Vol 345 ◽  
pp. 168-173
Author(s):  
Hai Bo Wu ◽  
Lian Zhou Jiang ◽  
Yang Li ◽  
Hai Tao Wu
Keyword(s):  
Protein Extraction ◽  
Extraction Process ◽  
Extraction Yield ◽  
Soy Flour ◽  
Microbial Fermentation ◽  
Hexane Extraction ◽  
Fermentation Conditions ◽  
Residual Hexane ◽  
Denature Protein ◽  
Full Fat Soy Flour

Although hexane extraction of soybean oil has the high recovery，residual hexane in oil is noxious for consumer health. Crew pressing and extruding-expelling extraction processes denature protein to render functional properties poor for food and meal use. This processing employed microbial fermentation to extract protein from full fat soy flour so that denaturation degree of protein reduced. The results showed that low temperature flaking and extrusing soy flakes was beneficial to improving protein extraction, after optimizing the fermentation conditions with the Response Surface Methodology (RSM), total protein extraction yield achieved the highest value - 86.66% at optimal fermentation conditions - 6.6% extruded full fat soy flour, 5.4% inoculation volume, the initial pH8.1. These advances make the microbial fermentation extraction process of protein from soybeans attractive channel as the environmentally – friendly technology.

Gas-chromatographic determination of residual hexane in hexane-extracted soybean flakes

1965 ◽  
Vol 42 (1) ◽  
pp. 62-64 ◽  
Author(s):  
L. T. Black ◽  
G. C. Mustakas
Keyword(s):  
Chromatographic Determination ◽  
Residual Hexane
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