Journal ArticleDOI
A rapid ATR-FTIR spectroscopic method for detection of sibutramine adulteration in tea and coffee based on hierarchical cluster and principal component analyses.
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TLDR
This research comprehensively explored, for the first time, detection of sibutramine in green tea, green coffee and mixed herbal tea using ATR-FTIR spectroscopic technique combined with chemometrics and suggests that existence of the active substance could be successfully determined at the levels in the range of 0.375-12mg.About:
This article is published in Food Chemistry.The article was published on 2017-08-15. It has received 91 citations till now. The article focuses on the topics: Herbal tea.read more
Citations
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Authenticity and traceability in beverages.
TL;DR: This review highlights the recent key studies and related analytical approaches on authentication of beverages including fruit juices, coffee and tea, and wine and other alcoholic beverages.
Journal ArticleDOI
Tackling Fraudsters with Global Strategies to Expose Fraud in the Food Chain.
TL;DR: A wide range of the currently available technologies for detecting food adulteration followed by multivariate pattern recognition tools are discussed and future directions in research, concerned not only with food adulterers but also with food safety and climate change, may be useful for researchers in developing interdisciplinary approaches to contemporary problems.
Journal ArticleDOI
Adsorptive removal of As(V) by crawfish shell biochar: batch and column tests.
TL;DR: The column adsorption experiments showed that Thomas, Yoon-Nelson, and Adams-Bohart models can be expressed as a unified model (EXY model) used for the design of biochar-based filter for As(V) removal, providing a theoretical basis for practical production applications.
Journal ArticleDOI
The famous Turkish rose essential oil: Characterization and authenticity monitoring by FTIR, Raman and GC-MS techniques combined with chemometrics.
TL;DR: Findings showed that FTIR and Raman spectroscopy combined with chemometrics could be used as reliable, robust, rapid, accurate and low-cost analytical techniques for quality evaluation of R. damascena essential oil.
Journal ArticleDOI
Recent developments in vibrational spectroscopic techniques for tea quality and safety analyses
Xiaohui Lin,Da-Wen Sun +1 more
TL;DR: This review compares the employment of different vibrational spectroscopic techniques including near-infrared (NIR) and mid-inf infrared (MIR), Raman, Terahertz (THz) spectroscopies and hyperspectral imaging (HSI) in tandem with regression and classification models in the quantitative and qualitative analyses of tea quality and safety.
References
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Journal ArticleDOI
Hierarchical Grouping to Optimize an Objective Function
TL;DR: In this paper, a procedure for forming hierarchical groups of mutually exclusive subsets, each of which has members that are maximally similar with respect to specified characteristics, is suggested for use in large-scale (n > 100) studies when a precise optimal solution for a specified number of groups is not practical.
Book
The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules
TL;DR: The -NH2, -NHR, and -NR2 groups as discussed by the authors are the most commonly used groups for double bonds containing Nitrogen Atoms, and the -C=N and -N=C groups.
Reference EntryDOI
Interpretation of Infrared Spectra, A Practical Approach
TL;DR: In this paper, the authors present a first-pass interpretation of the infrared spectrum of a molecule, based on structural features of the molecule, whether they are the backbone of the molecules or the functional groups attached to the molecule.
Book ChapterDOI
Obesity and Overweight
TL;DR: Overweight or obesity in adolescents has reache epidemic proportions in the USA and other industr alized countries and these conditions, although lumped together in research and in commentarie reflect adolescents’ being toward the heavier point a continuum that would range from underweight morbidly obese.
Journal ArticleDOI
Classification and identification of bacteria by Fourier-transform infrared spectroscopy
TL;DR: FT-IR patterns can be used to type bacteria and be used as an easy and safe method for the rapid identification of clinical isolates, and FT-IR provides data which can be treated such that classifications are similar and/or complementary to conventional classification schemes.
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