PROBLEM TO BE SOLVED: To provide a lipolysis inhibitor and a stomach cancer cell proliferation inhibitor derived from Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part, and to provide a novel saponin compound obtained by separating and purifying Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part extract.SOLUTION: There are provided a lipolysis inhibitor and a stomach cancer cell proliferation inhibitor containing Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part, Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part extract, and a saponin compound obtained by separating and purifying Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part extract as active ingredients and a novel saponin compound obtained by separating and purifying Camellia sinensis (L.) Kuntze var. assamica Kitam. flower part extract.COPYRIGHT: (C)2015,JPO&INPIT【課題】アッサムチャ花部由来の、脂肪分解阻害剤及び胃がん細胞増殖抑制剤、並びに、アッサムチャ花部の抽出液から分離、精製して得られる新規なサポニン化合物を提供する。【解決手段】アッサムチャ花部、アッサムチャ花部の抽出液、アッサムチャ花部の抽出液から分離、精製して得られるサポニン化合物を、活性成分として含むことを特徴とする脂肪分解阻害剤及び胃がん細胞増殖抑制剤、並びに、アッサムチャ花部の抽出液から分離、精製して得られる新規なサポニン化合物。【選択図】 なし