Dietetic composition

Abstract

(Problems) To provide a highly safe dietetic composition originating in green coffee beans by which excellent dietetic effects can be obtained and which contributes to the prevention and treatment of life style-related diseases such as diabetes.(Means for Solving Problems) A dietetic composition characterized by comprising, as the active ingredient, a polar solvent extract of defatted green coffee beans. It is preferable that the above-described polar solvent extract is an extract obtained by using water-containing ethanol, still preferably water-containing ethanol having an ethanol concentration of from 40 to 90% (wt / wt). It is preferable that the above-described defatted green coffee beans are those obtained by extracting green coffee beans with N-hexane to thereby separate oily components therefrom. It is recommended to combine the above-described dietetic composition with one or more members selected from among salacia extract, evening primrose extract, sesamine and garcinia. This dietetic composition is usable as a material for foods, drinks, drugs, or skin preparations for external use.

Description

FIELD OF THE INVENTION[0001]This invention relates to a dietetic composition derived from green coffee beans and is applicable for ingredients of food and drink, medicines, cosmetics, or the like.[0002]Obesity is caused by excessive eating, insufficient exercise or the like, and is considered as a risk factor for lifestyle-related diseases typically seen in diabetic persons. The total number of diabetic patients and people standing a good chance of developing diabetes is increasing yearly.[0003]As dietetic substances, capsaicin to enhance fat metabolism, chitosan to reduce fat absorption, citrus aurantium to enhance lipolysis and others are already known. The above dietetic substances are now used for food or the like to support slimming for the purpose of beautification such as cellulite reduction, excess body water extraction, body fat reduction or the like. However, some of the above dietetic substances are not sufficient to achieve a dietary effect. Therefore, high-value added d...

AI Technical Summary

Benefits of technology

[0006]This invention provides a highly safe dietetic composition, fat absorption suppressive composition, pancreatic lipase activity inhibiting composition, carnitine palmitoyltransferase activity promoting composition and cl-glucosidase activity inhibiting composition derived from green coffee beans.

[0015]In this invention (Invention 1), an excellent and highly-safe diet-promoting composition can be derived from green coffee beans, and the effect on the above programs (1) to (4) can be entirely obtained in a balanced manner. Thus, the weight gain by taking fat into the body can be prevented, and the effective diet can be done.

[0016]Referring now to the aforementioned Publications 1 and 2, a medicine for improving lipid metabolism focused on a function of chlorogenic acid contained in the coffee beans is disclosed in Publication 1 and another different medicine for preventing and improving lifestyle-related diseases is disclosed in Publication 2. And it is disclosed in common that an extract derived from green coffee beans contains an anti-obesity effect.

[0017]However, a dietetic composition in the present invention is a highly-concentrated bioactive composition containing chlorogenic acid derived from green coffee beans after extracting “defatted green coffee beans” with the solar solvent, and is different from the composition obtained simply by extracting the green coffee beans. And, the polar solvent extract derived from the defatted green coffee beans contains plenty of excellent diet-promoting composition as well as chrologenic acid. Therefore, compared to the extract derived from non-defatted green coffee beans, a good effect of diet (weight-reducing effect) can be expected in the present invention. (See Groups 3 and 4 in Chart 9, Example 5 of the Publication 1). In the polar solvent extract derived from the green coffee beans in the present invention, such an excellent weigh-reducing effect can be more expected than in other cases which are done by simply taking the chlorogenic acid into the body. Such an excellent effect is a unique effect which can not be predicted in the Publications 1, 2 and others.(Inventions 2 and 3)

[0028]As described above, when determining the diet effect focusing on fat, normally one of the following effects on the fat metabolism pathway is reviewed; (1) suppression of fat absorption, (2) inhibition of fat accumulation (3) enhancement of lipolysis, and (4) enhancement of fat burning. The aforementioned Publications 1 and 2 teach the lipolysis promoting effect indicated by measuring the amount of triglycerol, and also suggests an anti-obesity effect contained in the green coffee beans. However, it is little known that the extract derived from the green coffee beans has a fat absorption suppressive effect when the fat is taken into the body.

[0045]In the test of the bioactivity of glycolytic enzyme, such as α-amylase, α-glucosidase or the like, derived from the green coffee beans, it was found that the extract derived from the green coffee beans has an excellent inhibitory effect especially in regard to the α-glucosidase. Thus, in this invention (Invention 5), α-glucosidase enzyme activity is inhibited so that postprandial elevation of blood glucose levels can be suppressed and the diabetes and obesity can be finally prevented. In other words, this invention provides an anti-diabetic composition or dietetic composition containing an extract derived from the green coffee beans, as an active substance for inhibiting α-glucosidase activity. And as an active substance for inhibiting α-glucosidase activity, the polar solvent extract (including ethanol extract and N-hexane defatted substance) which is derived from the defatted green coffee beans described in the above Invention 5 can be used for the active substances for effects.

Problems solved by technology

Obesity is caused by excessive eating, insufficient exercise or the like, and is considered as a risk factor for lifestyle-related diseases typically seen in diabetic persons.

However, some of the above dietetic substances are not sufficient to achieve a dietary effect.

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