松科3个树种针叶的营养成分分析

Analysis of Nutritive Compositions of Conifer Needles from 3 Pinaceae Trees

通过测定松科3个树种云南松、华山松和云南油杉针叶的氨基酸、粗蛋白、粗脂肪和总糖含量,进行相关数据分析。结果表明,3种针叶内均含有17种氨基酸;其氨基酸平均含量最高的是谷氨酸、天冬氨酸、精氨酸和苏氨酸,最低的是组氨酸、蛋氨酸和半胱氨酸;3种针叶各种氨基酸含量大小依次为云南松>华山松>云南油杉;3种针叶粗蛋白含量分别为11.37%、13.72%和7.28%;粗脂肪含量分别为6.18%、10.82%和2.76%,总糖含量分别为4.85%、6.54%和7.35%。在与其他针叶树种针叶比较的基础上,探讨了云南松和华山松作为医药原料和畜禽饲料的开发应用前景。

The content of amino acids, crude proteins, crude fats and total sugars in leaves of Pinus yunnanensis, Pinus armandii, Keteleeria evelyniana were analyzed. The results show that all 3 conifer needles contain 17 amino acids. The highest amino acids content in these 3 conifer needles were glutamic acid, aspartic acid, arginine, threonine and the lowest content were histidine, methionine, cysteine. The order of amino acids content in 3 conifer needles was Pinus yunnanensis 〉 Pinus armandii 〉 Keteleeria evelyniana. The contents of crude proteins in Pinus yunnanensis, Pinus armandii and Keteleeria evelyniana＇s leaf were 11.37 %, 13.72 % and 7.28 %, the contents of crude fats were 6. 18 %, 10. 82 % and 2.76 %, the contents of total sugars were 4. 85 %, 6.54 % and 7.35 % respectively. Compared with other conifers needles, future prospects were discussed for the needles as raw materials for medicine and feedstuff.