PROBLEM TO BE SOLVED: To provide an anti-microbe agent, flavor promoter, or growth promoter having excellent effect to anti-microbe property, flavor promotion property or growth promotion property of animals and plants.SOLUTION: A lactic acid fermentation moso extract GQS is a main component. The lactic acid fermentation moso extract GQS is a secondary leaf extract acquired by blending an acidic plant 5, moso leaf powder (bamboo grass leaf) 6, and moso root leaf 7 to the lactic acid fermentation moso powder 1, discharging them into a filter and immersing in water for performing secondary fermentation, and then extracting them.COPYRIGHT: (C)2015,JPO&INPIT【課題】抗微生物性、旨み促進性又は動植物の成長促進性に優れた効果を有する抗微生物剤、旨み促進剤又は成長促進剤を提供することを目的とする。【解決手段】乳酸発酵孟宗竹エキスGQSを主成分とする。乳酸発酵孟宗竹エキスGQSは、乳酸発酵孟宗竹粉1に酸性質植物5、孟宗竹葉粉(笹粉)6、孟宗竹根粉7とを配合し、それらをフィルターに入れて水中に浸漬し二次発酵させた後に抽出した二次葉エキスである。【選択図】図2