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Cheng C, Terreno E. Development of a versatile optical pH sensor array for discrimination of anti-aging face creams. Talanta 2024; 278:126447. [PMID: 38909596 DOI: 10.1016/j.talanta.2024.126447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/12/2024] [Accepted: 06/17/2024] [Indexed: 06/25/2024]
Abstract
The certification of cosmetic products has always been a prominent concern. Here, we have developed a pH sensor and applied it in the field of cosmetic safety. Initially, we designed two probes, CH with aggregation-induced emission (AIE) effect and the near-infrared fluorophore derivative CYTYR. By encapsulating them with DSPE-PEG2000-NH2, we obtained the CHCY-lipo nano-micelles with fluorescence resonance energy transfer (FRET) response. By combining them into a sensor array called pC, we achieved sensitive detection of a wide pH range, ranging from 4.69 to 9.25. To validate the performance of the pC sensor array, we employed a multi-channel mode and applied it to differentiate commercial anti-aging creams. Through linear discriminant analysis and 3D fingerprint analysis, the pC sensor array successfully distinguished anti-aging creams from different countries, providing a rapid and accurate method for cosmetic safety identification. The results of this study demonstrate the potential of the pC sensor array for quick authentication of cosmetic products, offering significant support and application prospects in safeguarding consumer health.
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Affiliation(s)
- Cheng Cheng
- Molecular & Preclinical Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126, Torino, Italy
| | - Enzo Terreno
- Molecular & Preclinical Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126, Torino, Italy.
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Liu C, Wang N, Liu LX, Zhang YY, Liu YG. An analytical overview of the composition and characteristics of China's food safety standards. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3197-3205. [PMID: 38233355 DOI: 10.1002/jsfa.13262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/06/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024]
Abstract
This paper discusses the framework of China's food safety standards and provides a brief overview of the problems and developmental characteristics of food safety in China. The composition and characteristics of China's food safety standards are revealed by an analysis of the changes in China's general food standards, an overview of the characteristics of the hygiene requirements in the production and operation process, and an introduction to food product and test method standards. In conclusion, Chinese food safety standards are still being improved, but they must also be effectively implemented and followed up in real time in order to continuously improve the quality of food and reduce food safety incidents. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Chen Liu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
- College of Life Sciences, Linyi University, Linyi, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
| | - Nan Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Ling-Xiao Liu
- Linyi Academy of Agricultural Sciences, Linyi, China
| | | | - Yun-Guo Liu
- College of Life Sciences, Linyi University, Linyi, China
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Comment on Pyrrolizidine Alkaloids and Terpenes from Senecio (Asteraceae): Chemistry and Research Gaps in Africa. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248868. [PMID: 36558004 PMCID: PMC9781224 DOI: 10.3390/molecules27248868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
The genus Senecio is one of the largest in Asteraceae. There are thousands of species across the globe, either confirmed or awaiting taxonomic delimitation. While the species are best known for the toxic pyrrolizidine alkaloids that contaminate honeys (as bees select pollen from the species) and teas via lateral transfer and accumulation from adjacent roots of Senecio in the rhizosphere, they are also associated with more serious cases leading to fatality of grazing ruminants or people by contamination or accidental harvesting for medicine. Surprisingly, there are significantly more sesquiterpenoid than pyrrolizidine alkaloid-containing species. The main chemical classes, aside from alkaloids, are flavonoids, cacalols, eremophilanes, and bisabolols, often in the form of furan derivatives or free acids. The chemistry of the species across the globe generally overlaps with the 469 confirmed species of Africa. A small number of species express multiple classes of compounds, meaning the presence of sesquiterpenes does not exclude alkaloids. It is possible that there are many species that express the pyrrolizidine alkaloids, in addition to the cacalols, eremophilanes, and bisabolols. The aim of the current communication is, thus, to identify the research gaps related to the chemistry of African species of Senecio and reveal the possible chemical groups in unexplored taxa by way of example, thereby creating a summary of references that could be used to guide chemical assignment in future studies.
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Wang T, Guo Q, Li P, Yang H. Deep-eutectic solvents/ionic liquids/water mixture as a novel type of green thermo-switchable solvent system for selective extraction and separation of natural products from Rosmarinus officinalis leaves. Food Chem 2022; 390:133225. [PMID: 35597092 DOI: 10.1016/j.foodchem.2022.133225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/18/2022] [Accepted: 05/13/2022] [Indexed: 01/06/2023]
Abstract
In the present study, we designed a novel type of green thermo-switchable solvent system which is composed of ChCl:LA/[BMIM]PF6/H2O (v/v/v, 1/2/1) to extract natural products. When the temperature is 60 ℃, the system is a homogeneous single-phase system, and when cooling to 25 ℃, the system is switched into a heterogeneous two-phase system. Based on the thermo-switchable system, an integrated extraction method was developed which could efficiently extract both rosmarinic acid (hydrophilic) and carnosic acid (hydrophobic) from Rosmarinus officinalis leaves at 60 ℃ and in situ separate the extracted compounds with high recovery yields by cooling the extracts to 25 ℃. Rosmarinic acid was separated into the upper phase (88.97%) and carnosic acid was separated into the lower phase (97.46%). In addition to enhanced efficiency and no consumption of organic solvents, the method also completed the extraction and separation in a single step which further reduced the operation units.
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Affiliation(s)
- Tong Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 Tongjia Xiang, Nanjing 210009, China
| | - Qing Guo
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 Tongjia Xiang, Nanjing 210009, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 Tongjia Xiang, Nanjing 210009, China.
| | - Hua Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, No. 24 Tongjia Xiang, Nanjing 210009, China.
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Sadgrove NJ, Padilla-González GF, Phumthum M. Fundamental Chemistry of Essential Oils and Volatile Organic Compounds, Methods of Analysis and Authentication. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11060789. [PMID: 35336671 PMCID: PMC8955314 DOI: 10.3390/plants11060789] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/07/2022] [Accepted: 03/15/2022] [Indexed: 05/14/2023]
Abstract
The current text provides a comprehensive introduction to essential oils, their biosynthesis, naming, analysis, and chemistry. Importantly, this text quickly brings the reader up to a level of competence in the authentication of essential oils and their components. It gives detailed descriptions of enantiomers and other forms of stereoisomers relevant to the study of natural volatiles and essential oils. The text also describes GC-MS work and provides tips on rapid calculation of arithmetic indices, how to interpret suggested names from the NIST mass spectral library, and what additional efforts are required to validate essential oils and defeat sophisticated adulteration tactics. In brief, essential oils are mixtures of volatile organic compounds that were driven out of the raw plant material in distillation, condensed into an oil that is strongly aroma emitting, and collected in a vessel as the top layer (uncommonly bottom layer) of two phase separated liquids: oil and water. Essential oils commonly include components derived from two biosynthetic groups, being terpenes (monoterpenes, sesquiterpenes and their derivatives) and phenylpropanoids (aromatic ring with a propene tail). The current text provides details of how terpenes and phenylpropanoids are further categorised according to their parent skeleton, then recognised by the character of oxidation, which may be from oxygen, nitrogen, or sulphur, or the presence/absence of a double bond. The essential oil's science niche is an epicentre of individuals from diverse backgrounds, such as aromatherapy, pharmacy, synthetic and analytical chemistry, or the hobbyist. To make the science more accessible to the curious student or researcher, it was necessary to write this fundamentals-level introduction to the chemistry of essential oils (i.e., organic chemistry in the context of essential oils), which is herein presented as a comprehensive and accessible overview. Lastly, the current review constitutes the only resource that highlights common errors and explains in simplistic detail how to correctly interpret GC-MS data then accurately present the respective chemical information to the wider scientific audience. Therefore, detailed study of the contents herein will equip the individual with prerequisite knowledge necessary to effectively analyse an essential oil and make qualified judgement on its authenticity.
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Affiliation(s)
- Nicholas J. Sadgrove
- Royal Botanic Gardens, Kew, Kew Green, Richmond TW9 3DS, UK; (N.J.S.); (G.F.P.-G.)
| | | | - Methee Phumthum
- Royal Botanic Gardens, Kew, Kew Green, Richmond TW9 3DS, UK; (N.J.S.); (G.F.P.-G.)
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
- Correspondence:
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Holmes ST, Hook JM, Schurko RW. Nutraceuticals in Bulk and Dosage Forms: Analysis by 35Cl and 14N Solid-State NMR and DFT Calculations. Mol Pharm 2021; 19:440-455. [PMID: 34792373 DOI: 10.1021/acs.molpharmaceut.1c00708] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study uses 35Cl and 14N solid-state NMR (SSNMR) spectroscopy and dispersion-corrected plane-wave density functional theory (DFT) calculations for the structural characterization of chloride salts of nutraceuticals in their bulk and dosage forms. For eight nutraceuticals, we measure the 35Cl EFG tensor parameters of the chloride ions and use plane-wave DFT calculations to elucidate relationships between NMR parameters and molecular-level structure, which provide rapid NMR crystallographic assessments of structural features. We employ both 35Cl direct excitation and 1H→35Cl cross-polarization methods to characterize a dosage form containing α-d-glucosamine HCl, observe possible impurity and/or adulterant phases, and quantify the weight percent of the active ingredient. To complement this, we also investigate 14N SSNMR spectroscopy and DFT calculations to characterize nitrogen atoms in the nutraceuticals. This includes a discussion of targeted acquisition experimental protocols (i.e., acquiring a select region of the overall pattern that features key discontinuities) that allow ultrawideline spectra to be acquired rapidly, even for unreceptive samples (i.e., those with long values of T1(14N), short values of T2eff(14N), or very broad patterns). It is hoped that these experimental and computational protocols will be useful for the characterization of various solid forms of nutraceuticals (i.e., salts, polymorphs, hydrates, solvates, cocrystals, amorphous solid dispersions, etc.), help detect impurity and counterfeit solid phases in dosage forms, and serve as a foundation for future NMR crystallographic studies of nutraceutical solid forms, including studies using ab initio crystal structure prediction algorithms.
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Affiliation(s)
- Sean T Holmes
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - James M Hook
- NMR Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia.,School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Robert W Schurko
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
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Ariffin SH, A Wahab I, Hassan Y, Abd Wahab MS. Adulterated Traditional-Herbal Medicinal Products and Its Safety Signals in Malaysia. Drug Healthc Patient Saf 2021; 13:133-140. [PMID: 34135639 PMCID: PMC8197568 DOI: 10.2147/dhps.s305953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/24/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Usage of traditional-herbal medicines (THM) for various illnesses has been increased around the world, so does the adulteration of these products with hazardous compounds. There are limited Malaysian data that have been published on the characteristics trend and adverse events associated with adulterated THM products. AIM This study described characteristics of adulterated THM products in Malaysia and aimed to quantify THM products' safety signals of adverse reactions (ARs). METHODS THM products that were seized by Pharmacy Enforcement Division between 2008 and 2014 were extracted and analysed for 59,440 THM products. Of these, only 6452 THM products with complete information were included in the final analyses. Safety signalling tools were used to measure AR signals from AR reports obtained from the National Pharmaceutical Regulatory Agency Adverse Drug Reaction Database. RESULTS More than half of adulterated THM products originated from countries outside of Malaysia, with the majority were from Indonesia. The most common claimed indication of adulterated THM products was for pain and fever relief, while steroids were the most common adulterant. AR signals were generated for cough and cold products for respiratory and thoracic disorders, weight-loss products for cardiac disorders, and women's health products for reproductive and breast disorders. CONCLUSION Health authorities from various fields can work collaboratively by implementing strategic actions that include the use of safety signalling tools to curb the increasing number of adulterated THM products in the Malaysian market.
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Affiliation(s)
- Suriana Hanim Ariffin
- Pharmacy Enforcement Division, National Pharmaceutical Regulatory Agency, Petaling Jaya, 46200, Selangor, Malaysia
| | - Izyan A Wahab
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, 50603, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Yahaya Hassan
- Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Puncak Alam, 42300, Selangor, Malaysia
| | - Mohd Shahezwan Abd Wahab
- Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Puncak Alam, 42300, Selangor, Malaysia
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