褐梨是乔木,高达5-8米;分布于河北省、山西省、陕西省、山东省、河南省。叶片椭圆卵形至长卵形,长6-10厘米,宽3.5-5厘米,先端具长渐尖头,基部宽楔形,边缘有尖锐锯齿,齿尖向外,幼时有稀疏绒毛,不久全部脱落;叶柄长2-6厘米,微被柔毛或近于无毛。托叶膜质,线状披针形,边缘有稀疏腺齿,内面有稀疏绒毛,早落。
比较分析了褐皮砂梨和红皮砂梨果实的某些品质性状及抗氧化活性的差异。
Comparative analysis was conducted on the difference of some quality characters and antioxidation of black sand pear and red sand pear fruits.
不同浓度壳聚糖保鲜剂对酶活性影响不同,壳聚糖涂膜有效地防止了香梨的褐变。
Different coating preservation has different effects on CAT enzyme activity, chitosan coating significantly prevention and cure Browning of fragrant pear.
各种营养成分褐皮砂梨高于红皮砂梨。
Varied nutrient content of black sand pear fruits is higher than that red sand pear.
应用推荐