花青素 (anthocyanidin) ,又称花色素 ,系黄酮类化合物 ,广泛存在于植物的花果等部位 ,有多种药理作用 ,主要用于治疗心脑血管疾病 〔1〕。本文采用紫外分光光度法测定葡萄籽中花青素的含量。1　仪器与试药1.1　仪器　 751G型紫外—可见分光光度计 (上海分析仪表厂 )。1.2　试 Anthocyanidin (anthocyanidin), also known as anthocyanin, is a flavonoid that is widely found in the flowers and fruits of plants. It has many pharmacological effects and is mainly used for the treatment of cardiovascular and cerebrovascular diseases [1]. In this paper, UV spectrophotometry was used to determine the content of anthocyanin in grape seeds. 1 Instruments and reagents 1.1 Instrument 751G ultraviolet-visible spectrophotometer (Shanghai Analytical Instrument Factory). 1.2 Test