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Vanhee C, Jacobs B, Canfyn M, Malysheva SV, Willocx M, Masquelier J, Van Hoorde K. Quality Control and Safety Assessment of Online-Purchased Food Supplements Containing Red Yeast Rice (RYR). Foods 2024; 13:1919. [PMID: 38928859 PMCID: PMC11202976 DOI: 10.3390/foods13121919] [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: 05/31/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Dietary supplements containing red yeast rice (RYR), a fermentation product of the fungus Monascus purpureus grown on white rice, remain popular in Europe as proclaimed cholesterol-lowering aids. The cholesterol-lowering effects are due to the occurrence of monacolin K, which is often present as a mixture of monacolin K lactone (MK) and as monacolin K hydroxy acid (MKA). MK is structurally similar to the cholesterol-lowering medicine lovastatin. Recently, due to safety concerns linked to the use of statins, the European Commission prohibited RYR supplements with a maximum serving exceeding 3 mg of total monacolins per day. Moreover, the amount of the mycotoxin citrinin, potentially produced by M. purpureus, was also reduced to 100 µg/kg. Evidently, manufacturers that offer their products on the European market, including the online market, must also be compliant with these limits in order to guarantee the safety of their products. Therefore, thirty-five different RYR supplements, purchased from an EU-bound e-commerce platform or from registered online pharmacies, were screened for their compliance to the European legislation for citrinin content and the amount of total monacolin K. This was conducted by means of a newly developed LC-MS/MS methodology that was validated according to ISO 17025. Moreover, these supplements were also screened for possible adulteration and any contamination by micro-organisms and/or mycotoxins. It was found that at least four of the thirty-five RYR supplements (≈11%) might have reason for concern for the safety of the consumer either due to high total monacolin K concentrations exceeding the European predefined limits for total monacolins or severe bacterial contamination. Moreover, three samples (≈9%) were likely adulterated, and the labeling of six of the seventeen samples (≈35%) originating from an EU-based e-commerce platform was not compliant, as either the mandatory warning was missing or incomplete or the total amount of monacolins was not mentioned.
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Affiliation(s)
- Celine Vanhee
- Service Medicines and Health Products, Scientific Directorate of Chemical and Physical Health Risks, Sciensano, J. Wytsmanstraat 14, B-1050 Brussels, Belgium
| | - Bram Jacobs
- Service of Foodborne Pathogen, Scientific Directorate of Infectious Diseases in Humans, Sciensano, J. Wytsmanstraat 14, B-1050 Brussels, Belgium
| | - Michael Canfyn
- Service Medicines and Health Products, Scientific Directorate of Chemical and Physical Health Risks, Sciensano, J. Wytsmanstraat 14, B-1050 Brussels, Belgium
| | - Svetlana V. Malysheva
- Toxins Unit, Service of Organic Contaminants and Additives, Scientific Directorate of Chemical and Physical Health Risks, Sciensano, Leuvensesteenweg 17, B-3080 Tervuren, Belgium
| | - Marie Willocx
- Service Medicines and Health Products, Scientific Directorate of Chemical and Physical Health Risks, Sciensano, J. Wytsmanstraat 14, B-1050 Brussels, Belgium
| | - Julien Masquelier
- Toxins Unit, Service of Organic Contaminants and Additives, Scientific Directorate of Chemical and Physical Health Risks, Sciensano, Leuvensesteenweg 17, B-3080 Tervuren, Belgium
| | - Koenraad Van Hoorde
- Service of Foodborne Pathogen, Scientific Directorate of Infectious Diseases in Humans, Sciensano, J. Wytsmanstraat 14, B-1050 Brussels, Belgium
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Hannon KM, Sabala JD, Mantha M, Lorenz LM, Roetting Ii JP, Perini M, Pianezze S, Kubachka KM. Using stable carbon isotope ratio analysis to detect adulteration in red yeast rice dietary supplements. Talanta 2024; 266:125076. [PMID: 37625290 DOI: 10.1016/j.talanta.2023.125076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Red yeast rice (RYR) is marketed as a dietary supplement because it contains natural 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins), including monacolin K. However, there is concern that some RYR supplements may be adulterated with the pharmaceutical drug lovastatin to enhance health claims. We have developed an optimized method to isolate monacolin K/lovastatin from complex RYR dietary supplement matrices to then test for adulteration in RYR supplements using stable carbon isotope (δ13C) analysis. Samples were initially screened for monacolin K/lovastatin using liquid chromatography with mass spectrometric detection (LC-MS). To ensure the extraction process did not affect the measured isotopic values (i.e., isotopic fractionation effects), neat lovastatin standards were spiked into two types of blank RYR matrices (powder and gel). The monacolin K/lovastatin peaks were detected using high performance liquid chromatography with ultraviolet detection (HPLC-UV) and isolated using fraction collection. Residual matrix components were removed from targeted fractions by solid phase extraction (SPE) using graphitized carbon black cartridges. The resulting isolates were then analyzed using elemental analyzer-isotope ratio mass spectrometry (EA-IRMS) to measure δ13C values. The δ13C values of the extracted lovastatin standards were compared to their respective neat lovastatin δ13C values and demonstrated negligible isotopic fractionation effects. Using this optimized clean up method and carbon isotope analysis, thirty-one samples were screened. Eight RYR dietary supplement samples had >0.8 mg/g of monacolin K/lovastatin, our minimum threshold for analyzing samples using this method. Four of these eight samples had δ13C values greater than -28.3‰, a previously proposed cutoff value for natural monacolin K, indicating likely adulteration. Additionally, five RYR powder samples were analyzed as part of a collaborative study using in-house methods from two laboratories and the data shows acceptable agreement in the δ13C values of monacolin K/lovastatin (differences ranging from ±0.02‰ to ±0.76‰). This optimized method represents a robust, reproducible procedure for detecting lovastatin adulteration in dietary supplements with minimal isotopic fractionation.
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Affiliation(s)
- Kristen M Hannon
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA
| | - Joshua D Sabala
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA
| | - Madhavi Mantha
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA
| | - Lisa M Lorenz
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA
| | - John P Roetting Ii
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA
| | - Matteo Perini
- Fondazione Edmund Mach, Via E. Mach 1, 38098, San Michele All'Adige, TN, Italy
| | - Silvia Pianezze
- Fondazione Edmund Mach, Via E. Mach 1, 38098, San Michele All'Adige, TN, Italy
| | - Kevin M Kubachka
- US FDA/ORA/ORS/OMPSLO, Forensic Chemistry Center, 6751 Steger Drive, Cincinnati, OH, 45237, USA.
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Adels K, Elbers G, Diehl B, Monakhova Y. Multicomponent analysis of dietary supplements containing glucosamine and chondroitin: comparative low- and high-field NMR spectroscopic study. ANAL SCI 2024; 40:101-113. [PMID: 37819571 PMCID: PMC10766784 DOI: 10.1007/s44211-023-00433-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023]
Abstract
With the prevalence of glucosamine- and chondroitin-containing dietary supplements for people with osteoarthritis in the marketplace, it is important to have an accurate and reproducible analytical method for the quantitation of these compounds in finished products. NMR spectroscopic method based both on low- (80 MHz) and high- (500-600 MHz) field NMR instrumentation was established, compared and validated for the determination of chondroitin sulfate and glucosamine in dietary supplements. The proposed method was applied for analysis of 20 different dietary supplements. In the majority of cases, quantification results obtained on the low-field NMR spectrometer are similar to those obtained with high-field 500-600 MHz NMR devices. Validation results in terms of accuracy, precision, reproducibility, limit of detection and recovery demonstrated that the developed method is fit for purpose for the marketed products. The NMR method was extended to the analysis of methylsulfonylmethane, adulterant maltodextrin, acetate and inorganic ions. Low-field NMR can be a quicker and cheaper alternative to more expensive high-field NMR measurements for quality control of the investigated dietary supplements. High-field NMR instrumentation can be more favorable for samples with complex composition due to better resolution, simultaneously giving the possibility of analysis of inorganic species such as potassium and chloride.
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Affiliation(s)
- Klaudia Adels
- Department of Chemistry and Biotechnology, FH Aachen University of Applied Sciences, Heinrich-Mußmann-Straße 1-5, 52428, Jülich, Germany
| | - Gereon Elbers
- Department of Chemistry and Biotechnology, FH Aachen University of Applied Sciences, Heinrich-Mußmann-Straße 1-5, 52428, Jülich, Germany
| | - Bernd Diehl
- Spectral Service AG, Emil-Hoffmann-Straße 33, 50996, Cologne, Germany
| | - Yulia Monakhova
- Department of Chemistry and Biotechnology, FH Aachen University of Applied Sciences, Heinrich-Mußmann-Straße 1-5, 52428, Jülich, Germany.
- Spectral Service AG, Emil-Hoffmann-Straße 33, 50996, Cologne, Germany.
- Institute of Chemistry, Saratov State University, Astrakhanskaya Street 83, 410012, Saratov, Russia.
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Standardization issues in botanicals: A metabolomic and in silico approach to Monascus purpureus food supplements. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Quality evaluation of berberine food supplements with high-field and compact 1H NMR spectrometers. J Pharm Biomed Anal 2022; 223:115161. [DOI: 10.1016/j.jpba.2022.115161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 11/13/2022]
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Chen J, Zheng Q, Zheng Z, Li Y, Liao H, Zhao H, Guo D, Ma Y. Analysis of the differences in the chemical composition of monascus rice and highland barley monascus. Food Funct 2022; 13:7000-7019. [PMID: 35723016 DOI: 10.1039/d2fo00402j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monascus rice (MR) and highland barley monascus (HBM), the monascus fermented products, are applied in food and medicine to reduce cholesterol and promote digestion. Due to the fermentation substrates, their compositions are different. However, the exact differences have not been reported to date. By UPLC-Q-Orbitrap HRMS analysis, multiple components of twenty batches of MR and HBM samples were identified. In total, 100 components were confirmed (e.g., monacolins, pigments, decalin derivatives, amino acids). Then, principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were used to filter the components of MR and HBM. In the PCA model, 88.1% of the total variance was uncovered. The OPLS-DA model showed better discrimination between MR and HBM, and the values of R2X, R2Y, and Q2 were 0.837, 0.996, and 0.956, respectively. Based on the value of the variable importance in projection (VIP) and the result of the t-test, 424 components (VIP > 1, p < 0.05) were acquired. Finally, 11 differential components were selected as the characteristic compounds to discriminate between MR and HBM: the content of 9 monacolins (3-hydroxy-3,5-dihydrodehydromonacolin K, monacolin K, dehydromonacolin K, dehydromonacolin J hydroxy acid, monacophenyl, dihydromonacolin J hydroxy acid, monacolin L, dehydromonacolin J, and monacolin R) in HBM was higher than the content in MR, but the content of 2 pigments (ankaflavin and monascin) was lower in HBM and higher in MR. The findings revealed the similarities and differences in the chemical composition between MR and HBM, which is expected to provide a basis for quality control of HBM.
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Affiliation(s)
- Jia Chen
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qi Zheng
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhenxing Zheng
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yirou Li
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hailang Liao
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hui Zhao
- National United Engineering Research Center for Tibetan Plateau Microbiology, Tibet, China
| | - Dale Guo
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuntong Ma
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China. .,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Fan X, Han J, Zhang F, Chen W. Red yeast rice: a functional food used to reduce hyperlipidemia. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2043894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Xiangcheng Fan
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, China
| | - Jun Han
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, China
| | - Wansheng Chen
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai, China
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van Scheppingen WB, Lankhorst PP, Hans M, van den Berg MA. Detection of 4a,5-dihydropravastatin as Impurity in the Cholesterol Lowering Drug Pravastatin. Molecules 2021; 26:molecules26154685. [PMID: 34361838 PMCID: PMC8347671 DOI: 10.3390/molecules26154685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 11/21/2022] Open
Abstract
Dihydro analogues are known byproducts of the fermentative production of statins and cannot be detected with existing pharmacopoeia analysis methods. We detected dihydropravastatin in most commercial formulations of pravastatin with LC-MS, in some cases in levels requiring identification. In fermentation broth samples of the single step production of pravastatin, we detected and identified for the first time 4a,5-dihydropravastatin, and confirmed that after several recrystallization steps this impurity can be fully removed from the pravastatin powder.
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Analysis of Monacolins and Berberine in Food Supplements for Lipid Control: An Overview of Products Sold on the Italian Market. Molecules 2021; 26:molecules26082222. [PMID: 33921464 PMCID: PMC8069111 DOI: 10.3390/molecules26082222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 12/28/2022] Open
Abstract
The use of dietary supplements for the prevention and management of diseases associated with excess of lipids is spreading in Western countries. Supplements containing red yeast rice (RYR) and extracts from Berberis species, characterized, respectively, by the active compounds monacolin K (MK) and berberine (BBR), are sold in pharmacies as over the counter medicines (OTC) and in regular markets without the need of medical prescription and medical surveillance. However, MK is chemically identical to lovastatin, a drug commonly used to treat hypercholesterolemia, and is characterized by the same mechanism of action, pharmacokinetic profile and toxicity. On the other hand, although BBR-containing supplements are considered to be well-tolerated and safe, they frequently show poor standardization of active ingredients, and this could lead to lack of effects. In this work, with the aim to give an overview on the potency of RYR- and BBR-containing supplements available on the Italian market, we analyzed a pool of supplements bought from both local pharmacies and markets. Results confirm the data already published by other authors, showing scarce standardization of bioactives and discrepancy between the doses of bioactives reported by the manufacturers and the amounts resulting from analysis of the same products. Overall, our data represent a further proof that a strict legislation regulating the production and marketing of dietary supplements and a close monitoring of these products by food and drug regulatory organs is mandatory.
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Mohankumari HP, Naidu KA, Narasimhamurthy K, Vijayalakshmi G. Bioactive Pigments of Monascus purpureus Attributed to Antioxidant, HMG-CoA Reductase Inhibition and Anti-atherogenic Functions. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.590427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Monascus purpureus is known to produce pigment molecules. The pigments were extracted from M. purpureus fermented rice. In-vitro antioxidant effects of pigments were observed and presumed to alleviate oxidative stress related atherosclerosis effect in rats fed with high fat diet (HFD) for 14 weeks. The formation of lipid peroxide due to the oxidation of serum lipid was higher in rats fed with HFD. While, the feeding of fermented rice (groups III-V) significantly lowered the formation of lipid peroxide (27.1–51.7%) in serum of rats, indicated antioxidative effect of pigments. In addition, feeding of fermented rice lowered serum cholesterol and triacylglycerol by 44.82 and 45.30%, respectively. Whereas, LDL-cholesterol levels were decreased by 70.12% and HDL-cholesterol increased by 34.58%. The atherogenic indices (LDL/HDL and TC/HDL) were reduced by 77.80 and 61.05%, respectively, in rats fed with fermented rice. These data confirmed the anti-atherosclerotic effect of pigments. Further liver enzyme, 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase activity was significantly inhibited up to 54%. The identification of statins, sterols and fatty acids in fermented rice revealed the HMG-CoA reductase inhibitory activity. This was confirmed by synthesis of lower levels of cholesterol and triacylglycerol in liver of rats fed with fermented rice. Accordingly antioxidant, inhibition of HMG-CoA reductase, anti-atherogenic functions of M. purpureus fermented rice is attributed to the collective effect of bioactive metabolites.
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Yanli F, Xiang Y. Perspectives on Functional Red Mold Rice: Functional Ingredients, Production, and Application. Front Microbiol 2020; 11:606959. [PMID: 33324390 PMCID: PMC7723864 DOI: 10.3389/fmicb.2020.606959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/29/2020] [Indexed: 01/16/2023] Open
Abstract
Monacolin K (MK) is a secondary metabolite of the Monascus species that can inhibit cholesterol synthesis. Functional red mold rice (FRMR) is the fermentation product of Monascus spp., which is rich in MK. FRMR is usually employed to regulate serum cholesterol, especially for hypercholesterolemic patients who refuse statins or face statin intolerance. The present perspective summarized the bioactive components of FRMR and their functions. Subsequently, efficient strategies for FRMR production, future challenges of FRMR application, and possible directions were proposed. This perspective helps to understand the present situation and developmental prospects of FRMR.
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Affiliation(s)
- Feng Yanli
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, Hubei Normal University, Huangshi, China
- Hubei Engineering Research Center of Typical Wild Vegetables Breeding and Comprehensive Utilization Technology, Hubei Normal University, Huangshi, China
- National Demonstration Center for Experimental Biology Education, Hubei Normal University, Huangshi, China
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - Yu Xiang
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, Hubei Normal University, Huangshi, China
- Hubei Engineering Research Center of Typical Wild Vegetables Breeding and Comprehensive Utilization Technology, Hubei Normal University, Huangshi, China
- National Demonstration Center for Experimental Biology Education, Hubei Normal University, Huangshi, China
- College of Life Sciences, Hubei Normal University, Huangshi, China
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Food and Drug Analysis. Molecules 2020; 25:molecules25102403. [PMID: 32455805 PMCID: PMC7287759 DOI: 10.3390/molecules25102403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 11/23/2022] Open
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