Discrimination and Measurements of Three Flavonols with Similar Structure Using Terahertz Spectroscopy and Chemometrics
文献类型： 外文期刊
作者： Yan, Ling 1 ; Liu, Changhong 1 ; Qu, Hao 2 ; Liu, Wei 3 ; Zhang, Yan 4 ; Yang, Jianbo 6 ; Zheng, Lei 1 ;
作者机构： 1.Hefei Univ Technol, Sch Food Sci & Engn, Hefei 230009, Anhui, Peoples R China
2.Hefei Univ Technol, Sch Biol & Med Engn, Hefei 230009, Anhui, Peoples R China
3.Hefei Univ, Intelligent Control & Compute Vis Lab, Hefei 230601, Anhui, Peoples R China
4.Hebei Food Inspect & Res Inst, Shijiazhuang 050051, Hebei, Peoples R China
5.Hebei Key Lab Food Safety, Shijiazhuang 050051, Hebei, Peoples R China
6.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230031, Anhui, Peoples R China
关键词： Flavonols; Terahertz spectroscopy; Qualitative identification; Quantitative measurement; Chemometrics
期刊名称：JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES （ 影响因子：1.768； 五年影响因子：1.876 ）
ISSN： 1866-6892
年卷期： 2018 年 39 卷 5 期
页码：
收录情况： SCI
摘要： Terahertz (THz) technique, a recently developed spectral method, has been researched and used for the rapid discrimination and measurements of food compositions due to its low-energy and non-ionizing characteristics. In this study, THz spectroscopy combined with chemometrics has been utilized for qualitative and quantitative analysis of myricetin, quercetin, and kaempferol with concentrations of 0.025, 0.05, and 0.1 mg/mL. The qualitative discrimination was achieved by KNN, ELM, and RF models with the spectra pre-treatments. An excellent discrimination (100% CCR in the prediction set) could be achieved using the RF model. Furthermore, the quantitative analyses were performed by partial least square regression (PLSR) and least squares support vector machine (LS-SVM). Comparing to the PLSR models, the LS-SVM yielded better results with low RMSEP (0.0044, 0.0039, and 0.0048), higher Rp (0.9601, 0.9688, and 0.9359), and higher RPD (8.6272, 9.6333, and 7.9083) for myricetin, quercetin, and kaempferol, respectively. Our results demonstrate that THz spectroscopy technique is a powerful tool for identification of three flavonols with similar chemical structures and quantitative determination of their concentrations.
- 相关文献
作者其他论文 更多>>
-
Inhibitory effect of curcumin on duck tembusu virus
作者：Yin, Dongdong;Liu, Yayun;Liu, Wei;Yin, Lei;Wang, Jieru;Dai, Yin;Shen, Xuehuai;Zhao, Ruihong;Zhan, Kai;Pan, Xiaocheng;Yin, Dongdong;Liu, Yayun;Liu, Wei;Yin, Lei;Wang, Jieru;Dai, Yin;Shen, Xuehuai;Zhao, Ruihong;Zhan, Kai;Pan, Xiaocheng;Wang, Guijun
关键词：Duck tembusu virus; Curcumin; Antiviral activity; Virus replication
-
Identification and characterization of cold-responsive cis-element in the OsPHD13 and OsPHD52 promoter and its upstream regulatory proteins in rice
作者：Wang, Zimeng;Li, Hao;Li, Juan;Yang, Yachun;Xu, Zuntao;Yang, Jianbo;Ma, Hui;Wang, Zimeng;Wei, Pengcheng
关键词：Rice; PHD-finger transcription factor; Low temperature tolerance; Promoter region; CRT/DRE element
-
Effects of cage size on the natural behavior, serum parameters, production performance and hypothalamic mRNA expression profiles of laying hens
作者：Wan, Yi;Ma, Ruiyu;Qi, Renrong;Guan, Helong;Liu, Wei;Li, Junying;Li, Yan;Jiang, Dawei;Zhan, Kai
关键词：Cage size; Laying hen; Natural behavior; Production performance; Hypothalamus transcriptome analysis
-
Effects of adding antibiotics to an inactivated oil-adjuvant avian influenza vaccine on vaccine characteristics and chick health
作者：Shen, Xuehuai;Zhao, Ruihong;Yin, Lei;Yin, Dongdong;Dai, Yin;Hou, Hongyan;Wang, Jieru;Hu, Xiaomiao;Pan, Xiaocheng;Zhang, Danjun;Liu, Wei;Zhan, Kai;Shen, Xuehuai;Liu, Yongjie;Zhang, Anyun
关键词：avian influenza vaccines; antibiotic; immunization effect; drug concentration; chick health
-
Identification and Gene Cloning of a Brittle Culm Mutant (bc22) in Rice
作者：Cao, Xiying;Zhou, Tao;Liu, Wei;Zou, Yu;Ma, Hui;Gu, Dongfang;Ni, Jinlong;Cao, Xiying;Sun, Yue;Xu, Huan;Chen, Qingquan;Zhang, Yuhan;Gu, Dongfang;Ni, Jinlong
关键词：rice; brittle culm mutant; cell wall components; gene mapping
-
Dietary supplementation of Astragalus fermentation products improves the growth performance, immunological characteristics, and disease resistance of crucian carp (Carassius auratus)
作者：Shi, Lisha;Xue, Mingyang;Xing, Yangyang;Xu, Chen;Jiang, Nan;Fan, Yuding;Chen, Jianwu;Liu, Wei;Zeng, Lingbing;Zhou, Yong;Shi, Lisha;Wu, Yeying;Wu, Minglin
关键词：fermentation; growth characteristics; disease resistance; crucian carp; Astragalus
-
Novel insight into the feed conversion ratio in laying hens and construction of its prediction model
作者：Li, Yan;Ma, Ruiyu;Qi, Renrong;Li, Junying;Liu, Wei;Wan, Yi;Li, Sanjun;Zhan, Kai;Li, Hualong;Li, Junying;Xu, Jiechi
关键词：feed conversion ratio; laying hen; molecular mechanism; environmental variable; prediction model
