A5024176082- Spectroscopy and Chemometric Analyses
- Advanced Chemical Sensor Technologies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Metabolomics and Mass Spectrometry Studies
- Meat and Animal Product Quality
- Identification and Quantification in Food
- Tea Polyphenols and Effects
- Traditional Chinese Medicine Analysis
- Heavy Metals in Plants
- Fermentation and Sensory Analysis
- Phytochemicals and Antioxidant Activities
- Chromatography in Natural Products
- Biological and pharmacological studies of plants
- Essential Oils and Antimicrobial Activity
- Pharmacological Effects of Natural Compounds
- Bee Products Chemical Analysis
- Advanced Statistical Methods and Models
- Isotope Analysis in Ecology
- Insect and Pesticide Research
Shanghai Institute of Quality Inspection and Technical Research
2017-2022
China Jiliang University
2012-2014
Untargeted detection of protein adulteration in Chinese yogurt was performed using near-infrared (NIR) spectroscopy and chemometrics class modelling techniques. sixty samples were prepared with pure fresh milk from local market, 197 adulterated by blending the objects different levels edible gelatin, industrial soy powder, which have been frequently used for adulteration. A recently proposed one-class partial least squares (OCPLS) model to NIR spectra analyze those future objects. To improve...
This paper focuses on a rapid and nondestructive way to discriminate the geographical origin of Anxi-Tieguanyin tea by near-infrared (NIR) spectroscopy chemometrics. 450 representative samples were collected from Anxi County, original producing area Tieguanyin tea, another 120 with similar appearance unprotected areas in China. All these measured NIR. The Stahel-Donoho estimates (SDE) outlyingness diagnosis was used remove outliers. Partial least squares discriminant analysis (PLSDA)...
The feasibility of electronic tongue and multivariate analysis was investigated for discriminating the specific geographical origins a Chinese green tea with Protected Designation Origin (PDO). 155 Longjing samples from three subareas were collected analyzed by an array 7 sensors. To remove influence abnormal measurements samples, robust principal component (ROBPCA) used to detect outliers in each class. Partial least squares discriminant (PLSDA) then develop classification model. prediction...
A major safety concern with pidan (preserved eggs) has been the usage of lead (II) oxide (PbO) during its processing. This paper develops a rapid and nondestructive method for discrimination (Pb) in preserved eggs different processing methods by near-infrared (NIR) spectroscopy chemometrics. Ten batches 331 unleaded six 147 processed PbO were collected analyzed NIR spectroscopy. Inductively coupled plasma mass spectrometry (ICP-MS) analysis was used as reference Pb identification. The...
This paper aims to provide a stable instrumental method for provenance discrimination of Anji-White tea by its distinctive taste. 180 authentic and 60 counterfeit white samples were collected specific geographical origins detection; all them measured electronic tongue coupled with 7 independent sensors. Therefore, chemometrics methods, principal component analysis (PCA), partial least squares discriminant (PLSDA) performed in classification. The PCA distribution shows that, analysis, is...
This paper aims at developing a rapid and nondestructive method for analyzing the shelf life of preserved eggs (pidan) by near infrared (NIR) spectroscopy nonlinear multivariate calibration. A major concern with model is that noncomposition-correlated spectral variations among pidan objects different batches production dates would unnecessarily increase complexity cause overfitting degradation prediction. To reduce negative influence unwanted variations, stacked least squares support vector...
The feasibility of combining elemental fingerprints and chemical pattern recognition methods for authentication the geographical origins a Chinese herb, Gastrodia elata BI. (GE), was studied in this paper. A total 210 GE samples were collected from 7 different producing areas. levels 15 mineral elements GE, including Zn, Cd, Co, Cr, Cu, Ca, Mg, Mn, Mo, Ni, Pb, Sr, Fe, Na, K, determined using inductively coupled plasma mass spectrometry (ICP-MS). Using autoscaled data partial least-squares...
Abstract Elemental fingerprint, stable isotopic analysis, and chemometrics were combined to identify organic kiwifruit from ordinarily cultivated kiwifruit. Samples of ( n 1 = 78) ordinary 2 85) collected neighboring areas. For elemental the contents 15 elements in fresh fruits, including Al, Cr, Mg, Pb, Zn, Ca, Cu, Mn, Se, Cd, Fe, Na, Sr, Co, K, determined by inductively coupled plasma optical emission spectrometry (ICP‐OES). Three isotopes, δ 13 C, N, 18 O, analyzed using an isotope‐ratio...
This paper develops a rapid method for discriminating the geographical origins and age of roasted Torreya grandis seeds by near infrared (NIR) spectroscopic analysis pattern recognition. 337 samples were collected from three main producing areas produced in last two years. The objective is to discriminate Fengqiao with protected indication (PGI) those another provinces. Age classification aimed detect old year freshly ones. Partial least squares discriminant (PLSDA) was used develop models,...
Blueberry fruits of different cultivars are featured with quality indices. In this work, three types factors, including 6 physical parameters, 12 chemical and nutritional components, 3 antioxidant indices, were measured to compare classify blueberry from in China. Using the autoscaled data unsupervised principal component analysis was performed for exploratory intercultivar differences influences factors. A supervised classification method, partial least squares discriminant (PLSDA),...
A method based on elemental fingerprint, stable isotopic analysis and combined with chemometrics was proposed to trace the geographical origins of Licorice (Glycyrrhiza uralensis Fisch) from 37 producing areas. For levels 15 elements, including Ca, Cu, Mg, Pb, Zn, Sr, Mn, Se, Cd, Fe, Na, Al, Cr, Co, K, were analyzed by inductively coupled plasma atomic emission spectrometry (ICP-AES). Three isotopes, δ13C, δ15N, δ18O, measured using an isotope-ratio mass spectrometer (IRMS). fine...