• Natural Product Sciences
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• v.9 no.3
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• pp.200-203
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• 2003

Total lipids extracted from the powdered seeds of Carum roxburghianum were fractionated into hydrocarbons (0.30%), wax esters (0.30%), sterol esters (1.35%), triacylglycerols (72.41%), free fatty acids (6.06%), 1,3-diacylglycerols (4.60%), 1,2- diacylglycerols (0.64%), glycolipids (5.10%), sterols (1.20%), 2-monoacylgylcerols (3.18%), 1-monoacylglycerols (1.46%), phosphatidylethanolamines (1.08%) phosphatidylcholines (0.40%), lysophosphatidylethanolamines (1.48%) and phosphatidylinositols (0.44%) with the help of TLC. The fatty acid composition of all the lipid fractions was determined after converting them into their methyl esters with $BF_3-methanol$ reagent and then analyzing them by GC. Oleic acid was found as a major component in all the lipid classes, whereas palmitic, linoleic and linolenic acids were present in lesser quantities. Arachidic acid was identified as a minor component in only seven out of twelve lipid classes.

• Natural Product Sciences
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• v.10 no.6
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• pp.302-305
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• 2004

The lipase and phospholipase activities of meals of resting seeds of C. roxburghianum were studied at different temperatures, solvents and pH. Both the enzymes showed the maximum activities at $40^{\circ}C$ and in n-heptane used as solvent. However, lipase showed maximum activities at two different pH, one at pH 5 (acidic) and other at pH 8 (alkaline) whereas phospholipase showed only one pH optimum at pH 8. During the course of germination, the lipase showed an increase whereas reverse was the case with phospholipase.