Fuji Sangyo Co., Ltd.

Shuichi Kusano

Hiroshi Tamura

Takaaki Yamashita

A method for producing 4'-demethylnobiletin or 4&#x2032;-demethyltangeretin including fermenting a skin derived from at least one citrus fruit selected from citrus fruits belonging to sectionin subgenusin genusor citrus fruits belonging to sectionin subgenusin genus, or a water extract product thereof using one or moremolds selected from, andto obtain a fermented product.

Neurite elongation agent, memory-improving agent and anti-Alzheimer agent comprising 4'-demethylnobiletin or 4&#x2032;-demethyltangeretin as active ingredient, and process for production of the compound

A fermentation product (fermented food) that has high functionality by subjecting a fructan-containing material (in particular, a material including garlic or rakkyo containing fructan at a high concentration) directly to lactic acid fermentation without performing a heat treatment or an enzymatic treatment. More specifically, provided are: a fermentation product having an immunopotentiating effect, which is obtained by lactic acid fermentation of a fructan-containing material using a lactic acid bacteriumS506 strain (MITE BP-643) having fructan-utilizing ability, a mutant strain of the S506 strain having fructan-utilizing ability, or a strain isolated fromand having the same bacteriological properties as those of the S506 strain; and a fermented food which contains the fermentation product.

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Sakaide, Japan

Shuichi Kusano