| 基于水分、全氮量和粗纤维含量的茶鲜叶原料质量近红外评价方法 |
| |
| 引用本文： | 王胜鹏,宛晓春,林茂先,张正竹.基于水分、全氮量和粗纤维含量的茶鲜叶原料质量近红外评价方法[J].茶叶科学,2011,31(1):66-71. |
| |
| 作者姓名： | 王胜鹏 宛晓春 林茂先 张正竹 |
| |
| 作者单位： | 1. 安徽农业大学茶叶生物化学与生物技术教育部重点实验室,安徽 合肥 230036; 2. 合肥美亚光电技术有限责任公司,安徽 合肥 230038 |
| |
| 基金项目： | 农业部948项目，农业科技成果转化资金项目 |
| |
| 摘 要： | 通过交叉验证和偏最小二乘法（PLS）方法,建立了茶鲜叶的近红外光谱（NIRS）与其含水量、粗纤维总量和全氮量之间相关性模型。当主成分数为7时,3个指标的R值分别为0.92、0.86和0.90;交互验证均方根方差（RMSECV）分别为0.769、0.332和0.742。提出了基于鲜叶含水量、粗纤维总量和全氮量的茶鲜叶原料的质量系数方程,得出了鲜叶的质量系数。鲜叶质量系数越大,其质量越高。本文开发了一种基于NIRS技术评价茶鲜叶原料质量的新方法。
|
| 关 键 词： | 茶鲜叶 质量系数 近红外光谱 含水量 粗纤维量 全氮量 |
| 收稿时间： | 2010-05-07 |
Estimating the Quality of Tea Leaf Materials Based on Contents of Moisture,Total Nitrogen and Crude Fiber by NIR-PLS Techniques |
| |
| WANG Sheng-peng,WAN Xiao-chun,LIN Mao-xian,ZHANG Zheng-zhu.Estimating the Quality of Tea Leaf Materials Based on Contents of Moisture,Total Nitrogen and Crude Fiber by NIR-PLS Techniques[J].Journal of Tea Science,2011,31(1):66-71. |
| |
| Authors: | WANG Sheng-peng WAN Xiao-chun LIN Mao-xian ZHANG Zheng-zhu |
| |
| Institution: | 1. Key Laboratory of Tea Biochemistry & Biotechnology, Ministry of Education, Anhui Agricultural University, Hefei 230036, China; 2. Hefei Meiya Optoelectronic Technology Co., Ltd., Hefei 230038, China |
| |
| Abstract: | In order to estimate the quality of the fresh tea leaves by near infrared spectrum(NIRS) technique,the correlative model equation between near infrared spectrum of the fresh tea leaves and their corresponding moisture,crude fiber and total nitrogen amounts respectively through cross-validation and partial least squares(PLS) method were established in this paper.When the dimension was 7,the three indicators of R value were 0.92,0.86 and 0.90,root mean square error of cross-validation(RMSECV) were 0.769,0.332... |
| |
| Keywords: | fresh tea leaves quality index NIRS moisture total crude fiber total nitrogen |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《茶叶科学》浏览原始摘要信息 |
| 点击此处可从《茶叶科学》下载免费的PDF全文 |
|
