PROBLEM TO BE SOLVED: To provide a myoblast proliferation promoter and a focus adjustment function improving agent having an excellent action and effect for enhancement of muscle force and atrophy inhibition, promotion of muscle force metabolism accompanying them, and recovery of eyesight or prevention of reduced visual acuity and the like, while being excellent in safety.SOLUTION: The invention provides a myoblast proliferation promoter and a focus adjustment function improving agent containing purple chrysanthemum extract extracted with water and/or organic solvent, etc. using, as a raw material, Chrysanthemum plants e.g., purple chrysanthemum flowers containing anthocyanin, such as cyanidin 3-o-(6-o-monomanil-β-D-glucopyranoside) and cyanidin 3-o-(6, 6-o-dimalnil-β-D-glucopyranoside) and the like.COPYRIGHT: (C)2015,JPO&INPIT【課題】安全性に優れるとともに、筋力の増強や萎縮抑制、筋力代謝の促進、それに伴う視力の回復や視力低下の防止等に優れた作用・効果を有した筋芽細胞増殖促進剤及びピント調整機能改善剤を提供する。【解決手段】キク科キク属植物(Chrysanthemum)、例えばシアニジン3-o-(6’-o-モノマニル-β-D-グルコピラノシド)及びシアニジン3-o-(6’’,6’’-o-ジマルニル-β-D-グルコピラノシド等のアントシアニンが含まれている紫菊の花を原料として、水及び/又は、有機溶媒等による抽出した紫菊花抽出物を含有する筋芽細胞増殖促進剤及びピント調整機能改善剤。【選択図】図1
