PROBLEM TO BE SOLVED: To provide a myoblast differentiation promoting food that enhances the muscle thinned because of the aging or a shortage of exercise for a long period of time.SOLUTION: Provided is a myoblast differentiation promoting food containing an active ingredient having a function of promoting the growth of myoblast and the differentiation to muscle tube cell, that is contained in a squeezed juice or a squeezed residue obtained by squeezing the fruit of plants in Rosaceae Aronia genus said active ingredient functions as estrogen receptor β agonist and has a function of increasing estrogen receptor β activity because the action mechanism of achieving weight gain of muscle is direct, conspicuous effect is obtained and also, there is no fear of side effects and said food can be safely taken for a long period of time.COPYRIGHT: (C)2016,JPO&INPIT【課題】老化や長期間に亘る運動不足等が原因で痩せた筋肉を増強すること。【解決手段】バラ科アロニア属の植物の果実を搾汁した搾汁液もしくは搾汁残渣に含まれる、筋芽細胞の増殖及び筋管細胞への分化を促進する作用を有した有効成分を含有した筋芽細胞分化促進食品である。前記有効成分は、エストロゲン受容体βアゴニストとして機能し、エストロゲン受容体β活性を上昇させる作用を有する。【効果】筋肉の増量を図る作用機序が直接的であるため、顕著な効果が得られる。また、副作用の心配がなく、長期間に亘って安全に摂取できる。【選択図】図1
