Dandelion (Taraxacum officinale), an oriental herbal medicine, has been shown to favorably affect choleretic, antirheumatic and diuretin properties. Recent reports have indicated that excessive oxidative stress contributes to the development of atherosclerosis-linked metabolic syndrome. The objective of this current study was to investigate the possible hypolipidemic and antioxidative effects of dandelion root and leaf in rabbits fed with a high-cholesterol diet. A group of twenty eight male rabbits was divided into four subgroups; a normal diet group, a high-cholesterol diet group, a high-cholesterol diet with 1% (w/w) dandelion leaf group, and a high-cholesterol diet with 1% (w/w) dandelion root group. After the treatment period, the plasma antioxidant enzymes and lipid profiles were determined. Our results show that treatment with dandelion root and leaf positively changed plasma antioxidant enzyme activities and lipid profiles in cholesterol-fed rabbits, and thus may have potential hypolipidemic and antioxidant effects. Dandelion root and leaf could protect against oxidative stress linked atherosclerosis and decrease the atherogenic index.
The aim of this study was to assess the in vivo potential of ethanolic extracts of Glycine max (L.) Merr. (SoRiTae) and Rhynchosia nulubilis (Yak-Kong) seeds as natural anti-nociceptive and anti-inflammatory agents. To assess the anti-nociceptive and anti-inflammatory potential, the ethanolic extracts of SoRiTae and Yak-Kong seeds were tested in arachidonic acid-induced ear edema, carrageenan induced paw edema, formalin-induced licking time, acetic acid induced writhing and hot plate-induced thermal stimulation in mice. The administration of ethanolic extracts of SoRiTae and Yak-Kong seeds evoked a significant effect of anti-nociceptive and anti-inflammatory activities as compared to standards aminopyrine and indomethacin. The ear edema, paw edema, paw licking time, pain and writhes in mice were significantly reduced (p < 0.05) as compared to the control. The results obtained in this study indicate that both SoRiTae and Yak-Kong soybeans possesses potential anti-nociceptive and anti-inflammatory activities.
Changes in the contents of volatile aldehydes due to lipid oxidation in soybean oil during the deep-fat frying of fried squid rings were determined using solid phase micro-extraction (SPME) and gas chromatography-mass spectrometry (GC-MS). A total of 16 aldehydes such as pentanal, hexanal, heptanal, (Z) or (E)-2-heptenal, octanal, (E,E)-2,4-heptadienal, (E)-2-dodecenal, nonanal, (E)-2-nonenal, decanal, (E,E)-2,4-nonadienal, 4-oxononanal, (Z) or (E)-2-decenal, undecanal, (E,E)-2,4-decadienal, and 2-undecenal were identified in the soybean oil during frying process in mass food service. The relative contents of five aldehydes such as pentanal, hexanal, (Z) or (E)-2-heptenal, (E,E)-2,4-heptadienal, and (E,E)-2,4-nonadienal were significantly increased in the frying oil used over 3 times. Also, there were significant differences in the relative contents of the seven aldehydes such as (E)-2-dodecenal, nananal, (E)-2-nonenal, 4-oxononanal, (Z) or (E)-2-decenal, (E,E)-2,4-decadienal, and 2-undecenal between control and used soybean oil.
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