Tea pigment was watersoluble and alcohol-soluble matter ,but their solubility was smaller in1 % acetic acid solution and bigger in 0 .5% sodiumhydroxide solution thanthat in pure water .

• 茶色素为水溶性、醇溶性物质； 但在1 %25 醋酸溶液中的溶解度较纯水小； 在0 .；5%25 氢氧化钠溶液中的溶解度比纯水大。