The purple pigment which is asbtracted from the Althaea roseal is a harmless natural dystuff.This article introduces the research of the purple pigmenting from the althaea roseal and its stability.
从葵花瓣中
紫色素是一种安全无
天然染料.本文对
葵花中
紫色素
及稳定性
研究作了介绍.