Journal
JOURNAL OF MEDICINAL FOOD
Volume 12, Issue 2, Pages 416-422Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/jmf.2007.0541
Keywords
alpha-eleostearic acid; conjugated linoleic acid; conjugated linolenic acid; Trichosanthes kirilowii Maxim
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The incorporation and metabolism of orally administered punicic acid (PA), one isomer of conjugated linolenic acid (CLNA), in rat tissues and plasma were studied over a 24-hour period. The punic acid was derived from Trichosanthes kirilowii Maxim seed oil, a unique PA-containing material, and identified and analyzed by high-performance liquid chromatography and gas chromatography-mass spectrometry. The results show that PA was incorporated and metabolized to 9c, 11t-conjugated linoleic acid (CLA) in rat plasma, liver, kidney, heart, brain, and adipose tissue. The level of PA and CLA in liver and plasma was higher than in brain, heart, kidney, and adipose tissue, and the lowest accumulation occurred in the brain. The observation that PA can be converted into 9c, 11t-CLA has gained increased importance since it has been demonstrated that 9c, 11t-CLA exerts many biological activities. Therefore natural resources containing CLNA, especially edible T. kirilowii seed, could be a potential dietary source of CLA, following PA metabolism. PA is expected to be used as a functional food and nutraceutical.
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