Journal ArticleDOI
Identification and quantification of 1,3-dimethylbutylamine (DMBA) from Camellia sinensis tea leaves and dietary supplements.
Bharathi Avula,Mei Wang,S Sagi,Pieter A. Cohen,Pieter A. Cohen,Yan-Hong Wang,Pradeep B. Lasonkar,Amar G. Chittiboyina,Wei Feng,Ikhlas A. Khan,Ikhlas A. Khan +10 more
TLDR
The presence of DMBA was confirmed using a reference standard and was not detected in any of 25 authentic or commercial samples of Camellia sinensis tea leaves (green tea, black tea, Oolong tea, and Pouchung tea).About:
This article is published in Journal of Pharmaceutical and Biomedical Analysis.The article was published on 2015-11-10. It has received 11 citations till now. The article focuses on the topics: DMBA & Sudden death.read more
Citations
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Overview of regulation of dietary supplements in the USA and issues of adulteration with phenethylamines (PEAs).
Rahul S. Pawar,Erich Grundel +1 more
TL;DR: Regulatory actions against manufacturers of products labelled as dietary supplements that contain the aliphatic amines 1,3-dimethylamine and 1,2-dimethylbutylamine, and PEAs such as β-methylphenethylamines, aegeline, and Dendrobium illustrate the FDA's use of its authority under the FD&C Act to promote dietary supplement safety.
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Four experimental stimulants found in sports and weight loss supplements: 2-amino-6-methylheptane (octodrine), 1,4-dimethylamylamine (1,4-DMAA), 1,3-dimethylamylamine (1,3-DMAA) and 1,3-dimethylbutylamine (1,3-DMBA)
TL;DR: Two banned stimulants and two previously unidentified stimulants similar in structure to 1,3-DMAA and octodrine were identified in supplements sold in the United States.
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Emerging techniques for determining the quality and safety of tea products: A review.
Xiao-Lan Yu,Da-Wen Sun,Yong He +2 more
TL;DR: A review on the application of spectroscopic techniques, electrochemical methods, nano-zymes, computer vision, and modifications of chromatographic techniques for quality and safety determination of tea products may serve as guide for other types of foods and beverages, offering potential techniques for their detection and evaluation as discussed by the authors.
Journal ArticleDOI
Separation of Enantiomers Using Gas Chromatography: Application in Forensic Toxicology, Food and Environmental Analysis.
TL;DR: This manuscript compiles analytical methods of enantioseparation by GC, both direct and indirect methods, and its applicability in forensic toxicology, food and environmental analysis.
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Liquid chromatography-quadrupole time of flight mass spectrometric method for targeted analysis of 111 nitrogen-based compounds in weight loss and ergogenic supplements.
TL;DR: A validated liquid chromatography high-resolution mass spectrometry quadrupole time-of-flight (LC-QToF-MS) method was developed for the simultaneous analysis of 111 amine-based compounds belonging to ergogenics, anorectics and other active components including phenethylamines (amphetamines, ephedrines), sibutramine or yohimbine.
References
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Changes in Herb and Dietary Supplement Use in the US Adult Population: A Comparison of the 2002 and 2007 National Health Interview Surveys
TL;DR: Herbal preparations and dietary supplements remain popular in the United States, but the user population and patterns of use are changing.
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Hazards of Hindsight — Monitoring the Safety of Nutritional Supplements
TL;DR: Americans spend more than $32 billion a year on dietary supplements, which do not require premarketing approval before they reach store shelves, and the FDA must identify and remove dangerous supplements only after they have caused harm.
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DMAA as a Dietary Supplement Ingredient
TL;DR: It was found that most frontline providers in this study had very little training in the potential radiation risks from medical imaging and that these providers felt uncomfortable discussing the risks with patients.
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Studies of methylhexaneamine in supplements and geranium oil
TL;DR: This communication shows that geranium oils do not contain methyl hexaneamine and that products labelled as containing geranium oil but which contain methylhexaneamine can only arise from the addition of synthetic material.
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1,3-Dimethylamylamine (DMAA) in supplements and geranium products: natural or synthetic?
TL;DR: The enantiomeric and diastereomersic ratios of two different known synthetic DMAA compounds, as well as the total concentrations of DMAA and its stereoisomeric ratios in 13 different supplements, were determined by gas chromatography.