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Topic: Octacosane


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  JIS: Tschinkel 2.12.2002
The carrier gas was helium, and the initial column temperature was between 150 and 200 °C and was programmed to increase to 320°C at 3 or 4°/min and held at 320°C. The system was operated and data collected with a Hewlett-Packard 5970C computer.
The system was calibrated, and the quality of the chromatogram monitored, with a standard mixture consisting of: methyl heptadecanoate, methyl icosanoate, 3-methyltricosane, tricosanyl acetate, octacosane, tetracontane, and tricosanyl heptadecanoate, run at six concentrations.
The mass spectral data for the wax esters were analyzed by single-ion extraction of the data (Nelson et al., 2000).
www.insectscience.org /1.4   (4275 words)

  
 Bee Pollen : by Ray Sahelian, M.D., Benefits of Bee Pollen
The effects of extraction pressure, extraction temperature and the grinding size of the bee pollen on the yields were discussed.
The main composition of the fatty oil from the bee pollen was: oleic acid, palmitic acid, linoic acid, pentacosane, octacosane and so on.
Many competitive sportsmen in this country regularly use pollen extract as a dietary supplement in the belief that it can lead to an improvement in performance.
www.raysahelian.com /beepollen.html   (753 words)

  
 Characterization and Processing Research for Increased Industrial Applicability of New and Traditional Crops: A ...   (Site not responding. Last check: 2007-10-15)
Dilute Dimorphotheca oil (20% in hexane) is recirculated through the lumen of the reactor at 25°C. Triglycerides and liberated fatty acids mono-, and diglycerides were quantified (Muuse et al.
1992) by high-temperature capillary gas chromatography using octacosane and triheptadecanoin as internal standards.
Dimorphecolic acid is liberated upon hydrolysis of Dimorphoteca oil in this membrane bioreactor system (Fig.
www.hort.purdue.edu /newcrop/proceedings1993/V2-038.html   (3375 words)

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