摘要
近红外技术具有快速、准确、无损等优势,已在较多领域中得到广泛的应用,如水果品质检测、农产品和食品成份检测,还用于定性分析药材中的化学成分等。该研究采集30个来自不同产地、品级的虫草样品(那曲、玉树、林芝各10个),利用多种光谱预处理方法,结合化学计量法,对冬虫夏草进行了红外光谱分析,从而实现了对样品的快速测定。最终建立了“SG平滑+2阶求导”和“1001~1500 nm”组合的虫草分析模型,结果表明,那曲和林芝的虫草品质相近。
Near-infrared technology has the advantages of fast,accurate and non-destructive,and has been widely used in many fields,such as fruit quality testing,agricultural product and food ingredient detection,and is also used for qualitative analysis of chemical composition in medicinal materials.In this study,30Cordyceps sinensis samples from different origins and grades(10 each from Nagqu,Yushu,and Nyingchi)were collected,and a spectral analysis model of Cordyceps sinensis was established by using a variety of spectral pretreatment methods combined with stoichiometric methods,so as to realize the detection of Cordyceps sinensis samples with quick determination.Finally,we established a Cordyceps analysis model combining“SG smoothing+2nd order derivation”and“1001~1500nm”.The results showed that the quality of Cordyceps in Nagchu and Linzhi was similar.
作者
高贝贝
鲁同所
谭方萍
刘嘉帆
黄国良
GAO Bei-bei;LU Tong-suo;TAN Fang-ping;LIU Jia-fan;HUANG Guo-liang(Tibet University,Lhasa 850000,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China)
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2023年第S01期33-34,共2页
Spectroscopy and Spectral Analysis
基金
西藏大学研究生高水平人才培养计划项目(2020-GSP-S041)
西藏自治区2021年第二批中央引导地方科技发展基金项目(XZ202102YD0019C)
国家自然科学基金项目(11803024)
西藏自治区自然科学基金项目(XZ2019ZRG-163)资助
关键词
虫草
近红外光谱
定性分析模型
Cordyceps
Near infrared spectroscopy
Qualitative analysis model
作者简介
高贝贝,1997年生,西藏大学硕士研究生;通讯作者:鲁同所,e-mail:lutongsuo@163.com
