Determination of polysaccharide content among different wolfberry leaves and fruits

Polysaccharide content of leaves and fruits of Lycium barbarum L.,L. dasystemum Pojark. and L. chinense Mill. were determinate by using phenol- sulfuric acid spectrophotometry. The experimental results showed that the polysaccharide content in leaves was 167. 08 μg·g- 1、126. 00 μg·g- 1and 62. 40 μg·g- 1,respectively; the polysaccharide content in fruit was 80 mg·g- 1、50.68 mg·g- 1and 29. 64 mg·g- 1,respectively. The polysaccharide content were Lycium barbarum L. L. dasystemum Pojark. L. chinense Mill. There are significant positive correlations between fruits and leaves,the correlation coefficient was 0. 97.