Differentiation Between Natural Hydrocarbons and Low Level Diesel Oil Contamination in Cooked Lobster Meat

1975 ◽  
Vol 32 (2) ◽  
pp. 316-320 ◽  
Author(s):  
M. Paradis ◽  
R. G. Ackman
Keyword(s):  
Gas Chromatography ◽  
Column Chromatography ◽  
Lipid Extraction ◽  
Diesel Oil ◽  
Extraction Column ◽  
Oil Contamination ◽  
Low Level ◽  
Total Lipid Extraction ◽  
Temperature Programmed ◽  
Normal Background

A combination of total lipid extraction, column chromatography, and temperature-programmed gas chromatography was required to demonstrate disputed low level diesel oil contamination in cooked lobster meat. A specific diesel oil contaminant was indicated but identifiable components were not greatly in excess of the same compounds which were also found to be a normal background in organoleptically acceptable canned lobster meat.

Chemical Identification of Meat

1966 ◽  
Vol 49 (4) ◽  
pp. 877-880
Author(s):  
H R Cook ◽  
John D Sturgeon
Keyword(s):  
Gas Chromatography ◽  
Unsaponifiable Matter ◽  
Column Chromatography ◽  
Chemical Identification

Abstract Horse, pork, and beef fat are identified by gas chromatography of the unsaponifiable matter which is first fractionated by column chromatography. Fractions two and three give peaks which identify the fats.

scholarly journals The BUME method: a novel automated chloroform-free 96-well total lipid extraction method for blood plasma

2012 ◽  
Vol 53 (8) ◽  
pp. 1690-1700 ◽  
Author(s):  
Lars Löfgren ◽  
Marcus Ståhlman ◽  
Gun-Britt Forsberg ◽  
Sinikka Saarinen ◽  
Ralf Nilsson ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Total Lipid ◽  
Extraction Method ◽  
Lipid Extraction ◽  
Total Lipid Extraction

The Effect of Various UHT Processing Parameters and Storage Conditions on the Saturated Aldehydes In Half-and-Half Cream

1991 ◽  
Vol 54 (2) ◽  
pp. 109-112 ◽  
Author(s):  
R.K. HUTCHENS ◽  
A.P. HANSEN
Keyword(s):  
Gas Chromatography ◽  
High Temperature ◽  
Column Chromatography ◽  
Steam Injection ◽  
Processing Parameters ◽  
Storage Conditions ◽  
Tetra Pak ◽  
And Storage ◽  
Ultra High Temperature

Raw cream was standardized to 10% fat and processed by ultra-high-temperature (UHT) steam injection at 149°C for 20 s, 149°C for 3.4 s, 138°C for 20 s, and 143°C for 7 s, then aseptically packaged by a Tetra Pak AB3-250 filler. Packages were stored for 12 months at 24°C and analyzed at 0, 1, 3, 6, and 12 months. Fat-soluble carbonyls were extracted from the UHT cream with carbonyl-free hexanes and converted to their 2,4-dinitrophenyl-hydrazone derivatives. Alkanal hydrazones were separated by column chromatography into pure fractions. Spectrophotometry and gas chromatography were used to identify the alkanals. Butanal, hexanal, heptanal, nonanal, and decanal were identified and found to decrease in concentration during storage.

Plasma lipid-bound sialic acid and carcinoembryonic antigen in cancer patients.

1981 ◽  
Vol 27 (10) ◽  
pp. 1737-1739 ◽  
Author(s):  
A M Dnistrian ◽  
M K Schwartz
Keyword(s):  
Sialic Acid ◽  
Carcinoembryonic Antigen ◽  
Cancer Patients ◽  
Lipid Extraction ◽  
Plasma Lipid ◽  
Normal Subjects ◽  
Breast Cancer Patients ◽  
Lung Cancer Patients ◽  
Total Lipid Extraction ◽  
The Individual

Abstract We evaluated lipid-bound sialic acid as a "marker" in cancer patients and assessed the individual and combined value of lipid-bound sialic acid and carcinoembryonic antigen determinations in these patients. Plasma was sampled from 62 normal subjects and 125 cancer patients. Lipid-bound sialic acid was determined by the resorcinol method after total lipid extraction and isolation of the sialolipid fraction from plasma. Neither marker was increased in many breast cancer patients. Carcinoembryonic antigen was increased more commonly and to a greater degree in colon cancer patients and seems to be the preferred marker. Both markers were increased in lung cancer patients and their combined evaluation improved the rate of detection. Lipid-bound sialic acid was increased in more patients with leukemias, lymphomas, Hodgkin's disease, and melanomas, suggesting that it may be a useful biochemical marker in these types of cancer.

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