Results 11 to 20 of about 4,457,338 (303)

Targeted Metabolomics Combined with OPLS-DA to Elucidate Phenolic Differences in Eight Cashew Apples

Agriculture
Phenolic compounds were separated and identified using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) and analyzed with OPLS-DA and metabolomics in eight cashew apples. The results showed that the phenolic compound content in Bra4
Haijie Huang, Huifang Ma, Li Zhao, Weijian Huang, Xuejie Feng, Fuchu Hu, Ya Zhao, Liming Chen, Yingjun Ye, Zhongrun Zhang, Yi-jun Liu   +10 more
semanticscholar   +3 more sources

Research on LIBS online monitoring criteria for aircraft skin laser paint removal based on OPLS-DA.

Optics Express
Online monitoring technology plays a pivotal role in advancing the utilization of laser paint removal in aircraft maintenance and automation. Through the utilization of a high-frequency infrared pulse laser paint removal laser-induced breakdown ...
Shaolong Li, Yikai Yang, Shaohua Gao, Dehui Lin, Guo Li, Yue Hu, Wenfen Yang   +6 more
semanticscholar   +3 more sources

Raman Spectroscopy Study of Phosphorites Combined with PCA-HCA and OPLS-DA Models [PDF]

Minerals, 2019
Phosphorite is a nonrenewable strategic resource, a convenient and rapid method of phosphorite grade identification and classification is important to improve phosphate utilization.
Xinyan Yao, Hua-Yi Hou, Huan Liang, Kai Chen, Xiang-Bai Chen   +4 more
semanticscholar   +2 more sources

APPLICATION OF PARAFAC AND OPLS-DA ANALYSES ON HPLC FINGERPRINTS FOR THE CHARACTERIZATION OF Hibiscus sabdariffaCALYXES

Química Nova, 2016
The calyxes of Hibiscus sabdariffa are used in traditional medicine around the world. However, quality assurance protocols and chemical variability have not been previously analyzed.
F. Bernal, Luisa L. Orduz-Díaz, E. Coy-Barrera   +2 more
semanticscholar   +5 more sources

An approach for simultaneous determination for geographical origins of Korean Panax ginseng by UPLC-QTOF/MS coupled with OPLS-DA models [PDF]

Journal of Ginseng Research, 2013
Identification of the origins of Panax ginseng has been issued in Korea scientifically and economically. We describe a metabolomics approach used for discrimination and prediction of ginseng roots from different origins in Korea.
Hyuk Song, Doo-Young Kim, So-Yeun Woo, Hyeong-Kyu Lee, Sei-Ryang Oh   +4 more
semanticscholar   +3 more sources

Combined OPLS-DA and decision tree as a strategy to identify antimicrobial biomarkers of volatile oils analyzed by gas chromatography-mass spectrometry

Revista Brasileira de Farmacognosia, 2018
Bioguided isolation to discriminate antimicrobial compounds from volatile oils is a time- and money-consuming process. Considering the limitations of the classical methods, it would be a great improvement to use chemometric techniques to identify ...
F. A. Santos, I. P. Sousa, N. Furtado, F. B. Costa   +3 more
semanticscholar   +3 more sources

Compared application of the new OPLS-DA statistical model versus partial least squares regression to manage large numbers of variables in an injury case-control study

Scientific Research and Essays, 2011
The use of modern statistical methodology to overcome the known pitfalls of classical regression models in the analysis of large numbers of highly correlated data, has increased considerably in recent years. Statisticians in the field of chemometrics and
H. Sadeghi-Bazargani, S. Bangdiwala, K. Mohammad, H. Maghsoudi, R. Mohammadi   +4 more
semanticscholar   +3 more sources

Volatile Fingerprinting and Regional Differentiation of Safflower (<i>Carthamus tinctorius</i> L.) Using GC-IMS Combined with OPLS-DA. [PDF]

Foods
This study aimed to systematically characterize the volatile organic compound (VOC) profiles of safflower (Carthamus tinctorius L.) from eight major production regions, providing a scientific basis for quality evaluation and geographical traceability. VOC profiling was conducted using gas chromatography–ion mobility spectrometry (GC–IMS), and regional ...
Liu J, Duan H, Wang L, Qin R, Liu J, Liu H, Bao S, Yan W.   +7 more
europepmc   +3 more sources

Comparative Inner Morphological and Chemical Studies on Reynoutria Species in Korea

Plants, 2020
Reynoutria species are medicinal plants that belong to the family Polygonaceae and are widely distributed in eastern Asia, North America and Europe.
Atif Ali Khan Khalil, Kazi-Marjahan Akter, Hye-Jin Kim, Woo Sung Park, Dong-Min Kang, Kyung Ah Koo, Mi-Jeong Ahn   +6 more
doaj   +1 more source

Application of FT-IR spectroscopy and chemometric technique for the identification of three different parts of Camellia nitidissima and discrimination of its authenticated product

Frontiers in Pharmacology, 2022
Camellia nitidissima C.W. Chi is a golden camellia recognized in Chinese herbology and widely used as tea and essential oil in Chinese communities. Due to its diverse pharmacological properties, it can be used to treat various diseases.
Wan Yin Tew, Wan Yin Tew, Chen Ying, Chen Ying, Zhang Wujun, Liu Baocai, Tiem Leong Yoon, Mun Fei Yam, Mun Fei Yam, Chen Jingying   +9 more
doaj   +1 more source