Abstract: Described is a fat or oil composition which comprises at least 35 wt % of a diacylglycerol, the constituent fatty acids of said diacylglycerol satisfying the following equation: (an amount of a cis-form unsaturated fatty acid)/(an amount of a saturated fatty acid+an amount of a trans-form unsaturated fatty acid)?6, the usual intake of which as an edible oil makes it possible to reduce arteriosclerotic factors in blood, leading to the prevention of arteriosclerosis, and furthermore, various degenerative diseases.

Abstract: Abstract Provided is an oil/fat composition comprising 60 to 100 wt. % of a diglyceride wherein the diglyceride has, as the fatty acid constituent thereof, 15 to 90 wt. % of an ? 3-unsaturated fatty acid having less than 20 carbon atoms and a cis ? 3-unsaturated fatty acid/(cis ? 6-unsaturated fatty acid+saturated fatty acid+trans unsaturated fatty acid) at a weight ratio of 1 to 6. The composition is excellent in visceral fat burning property, body fat burning property and stability against autoxidation.

Abstract: Provided is an oil/fat composition comprising 10.1 to 94.9 wt. % of a triglyceride, 0.1 to 30 wt. % of a monoglyceride and 5 to 59.9 wt. % of a diglyceride which has, as a fatty acid constituent thereof, 15 to 90 wt. % of an ?3-unsaturated fatty acid having less than 20 carbon atoms. The oil/fat composition of the present invention has excellent heat stability, has body-fat-accumulation resisting action, visceral-fat-accumulation resisting action, blood-sugar-level lowering action, insulin resistance improving action and leptin lowering action and is useful for, as well as pharmaceuticals, preventive or remedial food for diabetes or obesity, and feed.

Abstract: Abstract Provided is an oil/fat composition comprising 60 to 100 wt. % of a diglyceride wherein the diglyceride has, as the fatty acid constituent thereof, 15 to 90 wt. % of an &ohgr; 3-unsaturated fatty acid having less than 20 carbon atoms and a cis &ohgr; 3-unsaturated fatty acid/(cis &ohgr; 6-unsaturated fatty acid+saturated fatty acid+trans unsaturated fatty acid) at a weight ratio of 1 to 6. The composition is excellent in visceral fat burning property, body fat burning property and stability against autoxidation.

Abstract: Provided is an oil/fat composition comprising 10.1 to 94.9 wt. % of a triglyceride, 0.1 to 30 wt. % of a monoglyceride and 5 to 59.9 wt. % of a diglyceride which has, as a fatty acid constituent thereof, 15 to 90 wt. % of an &ohgr;3-unsaturated fatty acid having less than 20 carbon atoms. The oil/fat composition of the present invention has excellent heat stability, has body-fat-accumulation resisting action, visceral-fat-accumulation resisting action, blood-sugar-level lowering action, insulin resistance improving action and leptin lowering action and is useful for, as well as pharmaceuticals, preventive or remedial food for diabetes or obesity, and feed.

Abstract: Described is a fat or oil composition which comprises at least 35 wt % of a diacylglycerol, the constituent fatty acids of said diacylglycerol satisfying the following equation: (an amount of a cis-form unsaturated fatty acid)/(an amount of a saturated fatty acid+an amount of a trans-form unsaturated fatty acid)≧6, the usual intake of which as an edible oil makes it possible to reduce arteriosclerotic factors in blood, leading to the prevention of arteriosclerosis, and furthermore, various degenerative diseases.

Abstract: Described is a fat or oil composition which comprises at least 35 wt. % of a diacylglycerol, the constituent fatty acids of said diacylglycerol satisfying the following equation: (an amount of a cis-form unsaturated fatty acid)/(an amount of a saturated fatty acid+an amount of a trans-form unsaturated fatty acid)≧6. Usual intake of the above-described composition as an edible oil makes it possible to reduce arteriosclerotic factors in blood, leading to the prevention of arteriosclerosis, furthermore, various degenerative diseases.

Abstract: A method of the concentration of acidic phospholipids is disclosed, which comprises a first step wherein lecithin originating in a plant is treated with a solvent containing from 85 to 100% by weight of a lower alcohol and then eliminating the solvent fraction containing said lower alcohol to thereby give a phospholipid mixture, and a second step wherein said phospholipid mixture is treated by using an aqueous solution containing 75% by weight or less of ethanol.In the method of the present invention, the water-soluble components contained in the phospholipid mixture obtained in the first step are efficiently removed in the second step. Thus a lipid mixture containing acidic phospholipids at a high concentration can be relatively easily obtained from the lecithin originating in a plant. This lipid mixture is useful as an emulsifier or a taste modifier.

Abstract: The present invention relates to a protein-lipid complex which modifies the taste of a food, pharmaceutical or cosmetic, particularly has the effect of decreasing the bitterness thereof; and a method for modifying the taste of a food, pharmaceutical or cosmetic with the complex, particularly a method for decreasing the bitterness thereof with the complex.

Abstract: A bitterness-relieving agent which comprises an ester of a mono- or diglyceride with a polycarboxylic acid or a salt of the same, and a medicinal composition for oral use, a food, a cosmetic and a feed containing this bitterness-relieving agent. Because of being excellent in the effect of relieving bitterness, the bitterness-relieving agent of the present invention can be used in medicinal compositions for oral use, foods and cosmetics having bitter taste.

Abstract: A method for suppressing a bitter taste of material to be placed in mouth or in contact with mouth, such as foods, drinks, pharmaceuticals, comprises adding an acidic phospholipid or an acidic lysophospholipid to the material.

Abstract: A phospholipid composition which satisfies the following requirements (i) and (ii):(i) a weight ratio of a nitrogen-containing phospholipid to the sum of a phospholipid, a glycolipid and a sterol derivative of less than 0.5; and(ii) a ratio of an area of a high-polar substance on a silica gel thin-layer chromatogram to the sum of areas of a phospholipid, a glycolipid and a sterol derivative on a silica gel thin-layer chromatogram of less than 500 area/.mu.g. A fat and oil composition containing from 0.001 to 30% by weight of the phospholipid composition is also disclosed. The present invention enables the blending of phospholipids with a frying oil, which has been considered difficult since it causes heat coloration. Thus a fat and oil composition, which is excellent in mold-release characteristics during cooking, has a good smell during heating, suffers from no coloration of oil after heating and shows a good flavor, can be obtained.