Results 111 to 120 of about 28,309 (210)

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 OMICS research have developed a new method called Orthogonal projections to latent structures (OPLS)
Sadeghi Bazargani Homayoun, I Bangdiwala Shrikant, Mohammad Kazem, Maghsoudi Hemmat, Mohammadi Reza   +4 more
openaire   +2 more sources

Rapid Identification of Vicatia thibetica de Boiss and Quantitative Analysis of the Content of Six Chemical Components Based on Near-Infrared Spectroscopy

Molecules
This study developed a rapid, non-destructive method combining near-infrared (NIR) spectroscopy with chemometric techniques (OPLS-DA, ANN, and PLS) to accurately identify the geographic origin and quantify six key chemical components of V.
Yunta Zhang, Jian Li, Jin Sun, Tian Xia, Yonglin Hai, Jian Li, Yongcheng Yang, Conglong Xia   +7 more
doaj   +1 more source

Effects of four drying methods on Amomum villosum Lour. 'Guiyan1' volatile organic compounds analyzed via headspace solid phase microextraction and gas chromatography-mass spectrometry coupled with OPLS-DA. [PDF]

RSC Adv, 2022
Tu X, Liu Y, Yanli Y, Wenxiu L, Ping L, Du L, He J, Jian-Neng L.   +7 more
europepmc   +1 more source

Investigation of potential quality indicators for raw laver (Pyropia spp.) standardization: a collaborative approach between traditional assessment and analytical chemistry

Frontiers in Nutrition
IntroductionRaw laver (Pyropia spp.) quality assessment is largely subjective and lacks scientific standardization.MethodsThis study established objective quality markers by integrating biochemical profiling with market-based valuation.
Seul-Ki Park, Gyuseok Lee, Gi-Un Seong, Du-Min Jo, Young-Mog Kim, Young-Mog Kim, Jeong-Seok Cho, Jeong-Ho Lim, Kee-Jai Park   +8 more
doaj   +1 more source

Detection of Adulterants Metanil Yellow in Turmeric Powder Using Fourier Transform Infrared (FTIR) Spectroscopy Combined with Chemometrics OPLS-DA and PLS

IJCA (Indonesian Journal of Chemical Analysis)
Turmeric powder (Curcuma longa L.) is often used for food coloring and flavoring. The high demand for turmeric powder has led to adulteration, one of which is metanil yellow. This study aims to detect metanil yellow dye in turmeric powder using Infrared Spectroscopy (FT-IR) and Chemometrics. The chemometrics model was built by preparing turmeric powder
Dia, Syahril Maulid, Putri, Anggita Rosiana, Muchlashi, Luthfi Ahmad   +2 more
openaire   +3 more sources

Interspecific and Environmental Influence on the Foliar Metabolomes of Mitragyna Species Through Recursive OPLSDA Modeling

Plants
Understanding interspecific and environmental influences on secondary metabolite profiles can be critical in plant metabolomics. This study used a hierarchical orthogonal projections to latent structure discriminant analysis (OPLS-DA) to classify the ...
Tushar Andriyas, Nisa Leksungnoen, Suwimon Uthairatsamee, Chatchai Ngernsaengsaruay, Sanyogita Andriyas   +4 more
doaj   +1 more source

DNA adduct profiling of in vitro colonic meat digests to map red vs. white meat genotoxicity

, 2018
The consumption of red meat has been linked to an increased colorectal cancer (CRC) risk. One of the major hypotheses states that heme iron (present in red meat) stimulates the formation of genotoxic N-nitroso compounds (NOCs) and lipid peroxidation ...
De Paepe, Ellen, Hemeryck, Lieselot, Rombouts, Caroline, Vanhaecke, Lynn   +3 more
core   +1 more source

Early Diagnosis of Fibromyalgia Using Surface-Enhanced Raman Spectroscopy Combined with Chemometrics

Biomedicines
Fibromyalgia (FM) is a chronic muscle pain disorder that shares several clinical features with other related rheumatologic disorders. This study investigates the feasibility of using surface-enhanced Raman spectroscopy (SERS) with gold nanoparticles ...
Haona Bao, Kevin V. Hackshaw, Silvia de Lamo Castellvi, Yalan Wu, Celeste Matos Gonzalez, Shreya Madhav Nuguri, Siyu Yao, Chelsea M. Goetzman, Zachary D. Schultz, Lianbo Yu, Rija Aziz, Michelle M. Osuna-Diaz, Katherine R. Sebastian, Monica M. Giusti, Luis Rodriguez-Saona   +14 more
doaj   +1 more source

Metabolic phenotype-microRNA data fusion analysis of the systemic consequences of Roux-en-Y gastric bypass surgery.

, 2015
BACKGROUND/OBJECTIVES: Bariatric surgery offers sustained marked weight loss and often remission of type 2 diabetes, yet the mechanisms of establishment of these health benefits are not clear.
A Darzi, A Guijarro, A Mencarelli, AD Patterson, C Esau, C W le Roux, C-Y Zhang, CWL Roux, D Yach, DG Hardie, DJ Crockford, E Holmes, F Seyfried, F Seyfried, FJ Ortega, G Mattiasson, H Ashrafian, H Ashrafian, H Ashrafian, H Buchwald, H Chen, H Huang, H Zhang, I Bechmann, J Elmen, J Elmén, J K Nicholson, J V Li, JV Li, K Wallace, KI Mitchelhill, L He, L Johansson, MA Cortez, MC Castro, MS Ebert, N J Gooderham, N Saeidi, N Stylopoulos, P Collins, Q Wu, RF Pfeiffer, T Athanasiou, W Fenske, Y Ueda   +44 more
core   +1 more source

Unravelling the metabolomic diversity of pigmented and non-pigmented traditional rice from Tamil Nadu, India

BMC Plant Biology
Rice metabolomics is widely used for biomarker research in the fields of pharmacology. As a consequence, characterization of the variations of the pigmented and non-pigmented traditional rice varieties of Tamil Nadu is crucial.
Venkatesan Subramanian, Udhaya Nandhini Dhandayuthapani, Senthilraja Kandasamy, Jidhu Vaishnavi Sivaprakasam, Prabha Balasubramaniam, Mohan Kumar Shanmugam, Sriram Nagappan, Subramanian Elangovan, Umesh Kanna Subramani, Kumaresan Palaniyappan, Geethalakshmi Vellingiri, Raveendran Muthurajan   +11 more
doaj   +1 more source