The dormant buds and sh oots of Dangshan pear only contain very small amounts of free amino acid,free Pr o and soluble protein.Perhaps the non-soluble protein consists mainly of Pro an d Hyp.

• 砀山酥梨 休眠芽和枝仅含极少量的游离氨基酸、游离Pro和可溶性蛋白质，不溶性蛋白质可能主要由P ro和Hyp组成。