| 基于近红外光谱技术的白茶可溶性糖总量快速测定研究 |
| |
| 引用本文： | 沈诗钰,孙威江,唐琴,陈佳佳,林馥茗,黄艳,周喆,陈翠翠.基于近红外光谱技术的白茶可溶性糖总量快速测定研究[J].天然产物研究与开发,2019(1):16-23. |
| |
| 作者姓名： | 沈诗钰 孙威江 唐琴 陈佳佳 林馥茗 黄艳 周喆 陈翠翠 |
| |
| 作者单位： | 福建农林大学园艺学院;福建农林大学安溪茶学院;福建省茶产业技术开发基地;福建省茶业工程技术研究中心 |
| |
| 基金项目： | 科技部重点研发专项"国家质量基础的共性技术研究与应用"子项(2016YFF0201904-03);福建省科技厅科技重大专项专题(2017NZ0002-1) |
| |
| 摘 要： | 本文以积分球漫反射模块采集113份不同等级不同年份的白茶近红外光谱图并进行预处理分析,采用蒽酮比色法对来自不同厂家的白茶进行含量测定,运用偏最小二乘法(PLS)建立了白茶可溶性糖总量快速测定模型并对模型进行验证。试验结果表明所建立模型的相关系数(R)为0. 963,校正均方根差(RMSEC)为0. 363 9,验证均方根差(RMSEP)为0. 349,验证集平均相对误差为3. 11%。通过NIRS快速测定白茶总糖含量具有较高的可行性,该方法预测结果较好,能够准确、快速、无损的对白茶可溶性糖总量进行快速定量分析。
|
| 关 键 词： | 白茶 可溶性糖总量 快速测定 近红外光谱技术 |
Rapid determination of total water-soluble sugars in white tea by near-infrared spectroscopy |
| |
| SHEN Shi-yu,SUN Wei-jiang,TANG Qin,CHEN Jia-jia,LIN Fu-ming,HUANG Yan,ZHOU Zhe,CHEN Cui-cui.Rapid determination of total water-soluble sugars in white tea by near-infrared spectroscopy[J].Natural Product Research and Development,2019(1):16-23. |
| |
| Authors: | SHEN Shi-yu SUN Wei-jiang TANG Qin CHEN Jia-jia LIN Fu-ming HUANG Yan ZHOU Zhe CHEN Cui-cui |
| |
| Institution: | (Horticultural college of Fujian Agriculture and Forestry University,Fuzhou 350002,China;Anxi tea college of Fujian Agriculture and Forestry University,Fuzhou 362400,China;Tea Industry Technology Development Base of Fujian Province;Tea Industry Engineering Technology Research Center of Fujian Province,Fuzhou 350002,China) |
| |
| Abstract: | This paper quantitatively determines the total water-soluble sugars in white tea rapidly by using Near-infrared Spectroscopy(NIRS)method.113 white tea samples,manufactured by distinct providers in different years,and of different quality grades,are used to do the determination experiments.The near-infrared spectra of these samples is acquired and analyzed in the first place.And then a quantitative analysis model of total water-soluble sugars in white tea is established by adopting partial least square(PLS)method.The experimental results show that the correlation coefficient(R)of the proposed quantitative analysis model is 0.963 9,while the root mean square error of calibration(RMSEC),the root mean square error of predication(RMSEP),and the average relative error of the validation set are 0.363,0.349 and 3.11%,respectively.The model is of good predication performance,and thus can quantitatively determinate the total water-soluble sugars in white tea accurately,rapidly and losslessly.The result indicates the feasibility of NIRS in rapid determination of total water-soluble sugars in white tea. |
| |
| Keywords: | white tea total water-soluble sugars rapid determination NIRS |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
