| abstract |
PROBLEM TO BE SOLVED: To provide an α-glucosidase inhibitor that can be safely used even in a food and drink base, and an anti-obesity and / or diabetes food or drink composition or a food composition comprising the α-glucosidase inhibitor, or anti-obesity And / or providing a preventive or therapeutic agent for diabetes. [MEANS FOR SOLVING PROBLEMS] A low molecular weight degradation product of a sulfated polysaccharide porphyran belonging to the genus Amanori, which is a water-soluble dietary fiber, has an inhibitory action on α-glucosidase, is highly safe, and can be safely used even in a food and beverage base. It can be used as a possible α-glucosidase inhibitor. As a low molecular weight degradation product of porphyran of the present invention, natural porphyran extracted from seaweeds such as Amanori, or modified porphyran modified by converting a sulfate group salt of the polyphyran, etc. as a raw material It can be decomposed, used as a low molecular weight decomposition product, and as an acceptable salt for their formulation. |