马铃薯茎芽力学性能与化学组分及相关性试验研究  

Study on the correlated experiment of mechanical properties and chemical compositions of potato buds

作　　者：巩自卫[1] 郭维俊[2] 孙伟[1] 王芬娥[1] 吴建民[1] 

机构地区：[1]甘肃农业大学工学院,甘肃兰州730070 [2]陇东学院机械工程学院,甘肃庆阳745000

出　　处：《食品工业科技》2015年第19期120-123,共4页Science and Technology of Food Industry

基　　金：甘肃省农业科技创新项目(GNCX-2012-48);甘肃省高校基本科研业务费-马铃薯膜上种植技术及配套机具研究

摘　　要：为研究马铃薯茎芽的理化特性,实验测定了25 d芽龄期的马铃薯茎芽的压缩特性参数以及不同芽龄期茎芽的纤维素、半纤维素和木质素的含量,并分析了其力学性能与化学组分之间的相关性。结果表明,马铃薯茎芽的压缩强度与最大压缩应变由顶部至基部增大;茎芽的纤维素、半纤维素和木质素含量由顶部至基部增加,且茎芽顶部与基部的压缩强度和最大压缩应变差异显著(p<0.05);顶部与基部的半纤维素和木质素含量差异显著(p<0.05)。茎芽的压缩强度与纤维素和半纤维素含量显著正相关,与木质素含量极显著正相关;茎芽的最大压缩应变与纤维素含量显著正相关,与半纤维素和木质素含量极显著正相关。该研究为进一步分析马铃薯茎芽理化特性提供了实验数据。In order to study the physical and chemical properties of potato stalk buds,the compression characteristic parameters on 25 d bud age and the content of cellulose,hemicelluloses and lignin during different bud age period of potato bud were measured by the test,and the interaction correlations between mechanical properties and chemical component of potato buds were analyzed. The results showed that the compression strength and the maximum compressive strain increased from the top to the base of potato stalk buds,the content of cellulose,hemicelluloses and lignin of potato buds increased from the top to the base,and the compression strength and the maximum compressive strain between the top and the base of the bud difference was significant（ p〈0.05）. The content of hemicelluloses and lignin between the top and the base of the bud difference was significant（ p〈0.05）.But the compression strength and the content of cellulose,hemicelluloses had a significantly positive correlation of potato bud,and the content of lignin extremely significant positive correlation,the maximum compressive strain and the content of cellulose had a significantly positive correlation of potato bud,and the content of hemicelluloses and lignin extremely significant positive correlation.The study provided experimental data for the further analysis the physical and chemical properties of potato stalk buds.

关 键 词：马铃薯茎芽 力学性能 化学组分 相关性 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]