1
|
Sun Y, Liu S, Yang S, Chen C, Yang Y, Lin M, Liu C, Wang W, Zhou X, Ai Q, Wang W, Chen N. Mechanism of Dihydromyricetin on Inflammatory Diseases. Front Pharmacol 2022; 12:794563. [PMID: 35115939 PMCID: PMC8804380 DOI: 10.3389/fphar.2021.794563] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Inflammation plays a crucial role in a variety of diseases, including diabetes, arthritis, asthma, Alzheimer’s disease (AD), acute cerebral stroke, cancer, hypertension, and myocardial ischemia. Therefore, we need to solve the problem urgently for the study of inflammation-related diseases. Dihydromyricetin (DHM) is a flavonoid mainly derived from Nekemias grossedentata (Hand.-Mazz.) J.Wen and Z.L.Nie (N.grossedentata). DHM possesses many pharmacological effects, including anti-inflammatory (NLRP-3, NF-κB, cytokines, and neuroinflammation), antioxidant, improving mitochondrial dysfunction, and regulating autophagy and so on. In this review, we consulted the studies in the recent 20 years and summarized the mechanism of DHM in inflammation-related diseases. In addition, we also introduced the source, chemical structure, chemical properties, and toxicity of DHM in this review. We aim to deepen our understanding of DHM on inflammation-related diseases, clarify the relevant molecular mechanisms, and find out the problems and solutions that need to be solved urgently. Providing new ideas for DHM drug research and development, as well as broaden the horizons of clinical treatment of inflammation-related diseases in this review. Moreover, the failure of clinical transformation of DHM poses a great challenge for DHM as an inflammation related disease.
Collapse
Affiliation(s)
- Yang Sun
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Shasha Liu
- Pharmacy Department, Xiangtan Central Hospital, Xiangtan, China
| | - Songwei Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chen Chen
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yantao Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Meiyu Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chao Liu
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Wenmao Wang
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Xudong Zhou
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Qidi Ai
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Wei Wang
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Naihong Chen
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| |
Collapse
|
2
|
Zhang H, Caprioli G, Hussain H, Khoi Le NP, Farag MA, Xiao J. A multifaceted review on dihydromyricetin resources, extraction, bioavailability, biotransformation, bioactivities, and food applications with future perspectives to maximize its value. EFOOD 2021. [DOI: 10.53365/efood.k/143518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Natural bioactive compounds present a better alternative to prevent and treat chronic diseases owing to their lower toxicity and abundant resources. (+)-Dihydromyricetin (DMY) is a flavanonol, possessing numerous interesting bioactivities with abundant resources. This review provides a comprehensive overview of the recent advances in DMY natural resources, stereoisomerism, physicochemical properties, extraction, biosynthesis, pharmacokinetics, and biotransformation. Stereoisomerism of DMY should be considered for better indication of its efficacy. Biotechnological approach presents a potential tool for the production of DMY using microbial cell factories. DMY high instability is related to its powerful antioxidant capacity due to pyrogallol moiety in ring B, and whether preparation of other analogues could demonstrate improved properties. DMY demonstrates poor bioavailability based on its low solubility and permeability with several attempts to improve its pharmacokinetics and efficacy. DMY possesses various pharmacological effects, which have been proven by many in vitro and in vivo experiments, while clinical trials are rather scarce, with underlying action mechanisms remaining unclear. Consequently, to maximize the usefulness of DMY in nutraceuticals, improvement in bioavailability, and better understanding of its actions mechanisms and drug interactions ought to be examined in the future along with more clinical evidence.
Collapse
|
3
|
Xu J, Li X, Xu Y, Wang A, Xu Z, Wu X, Li D, Mu C, Ge L. Dihydromyricetin-Loaded Pickering Emulsions Stabilized by Dialdehyde Cellulose Nanocrystals for Preparation of Antioxidant Gelatin–Based Edible Films. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02664-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
4
|
Xie W, Du Y, Yuan S, Pang J. Dihydromyricetin incorporated active films based on konjac glucomannan and gellan gum. Int J Biol Macromol 2021; 180:385-391. [PMID: 33652043 DOI: 10.1016/j.ijbiomac.2021.02.185] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/27/2022]
Abstract
Active composite films were developed by incorporating different concentration of dihydromyricetin (DMY) into konjac glucomannan (KGM)/gellan gum (GG) matrix. Physicochemical, mechanical, released behaviour, antioxidant and antimicrobial properties of composite films were investigated. The results from the Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) indicated that DMY which well-dispersed in the KGM/GG matrix interacted with matrix through hydrogen bonds. The obtained films presented predominant thermostability, good water resistance property, excellent ultraviolet light barrier ability and sustained controlled release behaviour. In particular, the incorporation of DMY remarkably enhanced the antioxidant and antimicrobial activities of the films. Overall, the fabricated KGM/GG-DMY composite films have a promising application in the fields of food packaging.
Collapse
Affiliation(s)
- Wanzhen Xie
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yu Du
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Shuyi Yuan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
| |
Collapse
|
5
|
Carneiro RC, Ye L, Baek N, Teixeira GH, O'Keefe SF. Vine tea (Ampelopsis grossedentata): A review of chemical composition, functional properties, and potential food applications. J Funct Foods 2021. [DOI: 10.1016/j.jff.2020.104317] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
6
|
Song W, Liu LL, Ren YJ, Wei SD, Yang HB. Inhibitory effects and molecular mechanism on mushroom tyrosinase by condensed tannins isolation from the fruit of Ziziphus jujuba Mill. var. spinosa (Bunge) Hu ex H. F. Chow. Int J Biol Macromol 2020; 165:1813-1821. [PMID: 33038405 DOI: 10.1016/j.ijbiomac.2020.09.259] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 01/06/2023]
Abstract
The structure of extracted condensed tannin (CT) from the fruit of Sour jujube (Ziziphus jujuba Mill. var. spinosa (Bunge) Hu ex H. F. Chow) and the molecular mechanisms by which CT inhibits the activity of mushroom tyrosinase were investigated. The structure of CT was characterized by high performance liquid chromatography electrospray ionization mass spectrometry, and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The kinetic assays were used to detect inhibition effect, type and mechanism. UV scanning, fluorescence quenching, copper interacting, o-quinone interaction and molecular docking assays were also used to reveal the molecular mechanisms by which CT inhibit tyrosinase. The results showed the structural units of CT containing afzelechin/epiafzelechin, catechin/epicatechin, and gallocatechin/epigallocatechin. Kinetic analysis showed that CT inhibits both the monophenolase and diphenolase activities of tyrosinase and exhibits reversible, mixed type mechanism. The fruit CT interacts primarily with the copper ions and specific amino acid residue (Asn191, Thr203, Ala202, Ser206, Met201, His194, His54, Glu182 and Ile42) in the active site of tyrosinase to disturb oxidation of substrates by tyrosinase. These results suggested the sour jujube fruit is a potential natural source of tyrosinase inhibitors, and has a potential to be used in food preservation, whitening cosmetics.
Collapse
Affiliation(s)
- Wei Song
- School of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467044, China.
| | - Lu-Lu Liu
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Yuan-Jing Ren
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Shu-Dong Wei
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China.
| | - Hai-Bo Yang
- School of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467044, China; Forestry College, Henan Agricultural University, Zhengzhou, Henan 450000, China.
| |
Collapse
|
7
|
Pu Bai, Jia X, Dong Y, Sa C, Sun G, Zhu X. Simultaneous Determination of (2R,3R)-Dihydromyricetin and Myricetin of Mongolia Medicine Sendeng-4 in RAT Plasma by Liquid Chromatography–Mass Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820070035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
8
|
A deep insight into mechanism for inclusion of 2R,3R-dihydromyricetin with cyclodextrins and the effect of complexation on antioxidant and lipid-lowering activities. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105718] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
9
|
Sikora M, Złotek U, Kordowska-Wiater M, Świeca M. Effect of Basil Leaves and Wheat Bran Water Extracts on Antioxidant Capacity, Sensory Properties and Microbiological Quality of Shredded Iceberg Lettuce during Storage. Antioxidants (Basel) 2020; 9:E355. [PMID: 32344615 PMCID: PMC7222371 DOI: 10.3390/antiox9040355] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/14/2020] [Accepted: 04/22/2020] [Indexed: 11/16/2022] Open
Abstract
The effect of basil leaf (BLE) and wheat bran (WBE) extracts (potent anti-browning agents), on the phenolic content, antioxidant potential, microbiological quality, and consumer quality of shredded lettuce during storage were studied. Treatment of lettuce with increasing concentrations of BLE proportionally increased the total phenolic content and antioxidant properties. Compared to the control, the treatment enhanced the antiradical properties. This was especially visible during the analysis of the chemical extracts, while this effect was not retained in the potentially bioaccessible fraction. In the lettuce stored for 8 days, the highest reducing potential and ability to quench radicals were observed in samples treated with 1% BLE-33 mg Trolox equivalent/g d.m. and 2.8 mg Trolox equivalent/g d.m., respectively. Compounds exhibiting antiradical properties were easily bioaccessible in vitro. There was no negative effect of the treatments on the consumer quality. Most importantly, after 8 days of storage, lettuce treated with the studied extract, except 10% WBE, had higher microbiological quality. After 8-day storage, the coliforms count was reduced by 84% and 88% in samples treated with 0.5% BLE and 10% WBE, respectively. In conclusion, treatments of shredded lettuce with BLE and WBE maintain or even improve its quality during storage.
Collapse
Affiliation(s)
- Małgorzata Sikora
- Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland; (M.S.); (U.Z.)
| | - Urszula Złotek
- Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland; (M.S.); (U.Z.)
| | - Monika Kordowska-Wiater
- Department of Biotechnology, Microbiology and Human Nutrition, University of Life Sciences in Lublin, 20-704 Lublin, Poland;
| | - Michał Świeca
- Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna Str. 8, 20-704 Lublin, Poland; (M.S.); (U.Z.)
| |
Collapse
|
10
|
Liu D, Mao Y, Ding L, Zeng XA. Dihydromyricetin: A review on identification and quantification methods, biological activities, chemical stability, metabolism and approaches to enhance its bioavailability. Trends Food Sci Technol 2019; 91:586-597. [PMID: 32288229 PMCID: PMC7127391 DOI: 10.1016/j.tifs.2019.07.038] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/21/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dihydromyricetin (DMY) is an important plant flavonoid, which has received great attention due to its health-benefiting activities, including antioxidant, antimicrobial, anti-inflammatory, anticancer, antidiabetic and neuroprotective activities. DMY capsules have been sold in US as a nutraceutical supplement to prevent alcoholic hangovers. The major disadvantage associated with DMY is its chemical instability and poor bioavailability caused by the combined effects of its low solubility and poor membrane permeability. This limits its practical use in the food and pharmaceutical fields. SCOPE AND APPROACH The present paper gives an overview of the current methods for the identification and quantification of DMY. Furthermore, recent findings regarding the main biological properties and chemical stability of DMY, the metabolism of DMY as well as different approaches to increase DMY bioavailability in both aqueous and lipid phases are discussed. KEY FINDINGS AND CONCLUSIONS Current trends on identification and quantification of DMY have been focused on spectral and chromatographic techniques. Many factors such as heat, pH, metal ions, could affect the chemical stability of DMY. Despite the diverse biological effects of DMY, DMY faces with the problem of poor bioavailability. Utilization of different delivery systems including solid dispersion, nanocapsule, microemuslion, cyclodextrin inclusion complexes, co-crystallization, phospholipid complexes, and chemical or enzymatic acylation has the potential to improve both the solubility and bioavailability. DMY digested in laboratory animals undergoes reduction, dehydroxylation, methylation, glucuronidation, and sulfation. Novel DMY delivery systems and basic pharmacokinetic studies of encapsulated DMY on higher animals and humans might be required in the future.
Collapse
Affiliation(s)
- Dan Liu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
- Corresponding author. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
| | - Yiqin Mao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Lijun Ding
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xin-An Zeng
- South China University of Technology, School of Food Science & Engineering, Guangzhou, 510640, Guangdong, PR China
- Corresponding author
| |
Collapse
|
11
|
Tinello F, Lante A. Recent advances in controlling polyphenol oxidase activity of fruit and vegetable products. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2018.10.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
12
|
Li X, Li Y, Wang Z. Structural properties of lecithin based reverse hexagonal (H II) liquid crystals and in vitro release of dihydromyricetin. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2017.1417134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xuepeng Li
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, PR China
| | - Yang Li
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, PR China
| | - Zhongni Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, PR China
| |
Collapse
|
13
|
Wu YP, Bai JR, Grosu E, Zhong K, Liu LJ, Tang MM, Huang YN, Gao H. Inhibitory Effect of 2R,3R-Dihydromyricetin on Biofilm Formation by Staphylococcus aureus. Foodborne Pathog Dis 2018; 15:475-480. [PMID: 29847738 DOI: 10.1089/fpd.2017.2405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Yan-Ping Wu
- Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
| | - Jin-Rong Bai
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
| | - Elena Grosu
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
| | - Kai Zhong
- Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
| | - Li-Jin Liu
- Department of Public Health, West China Medical School, Sichuan University, Chengdu, China
| | - Meng-Meng Tang
- Department of Public Health, West China Medical School, Sichuan University, Chengdu, China
| | - Yi-Na Huang
- Department of Public Health, West China Medical School, Sichuan University, Chengdu, China
| | - Hong Gao
- Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
| |
Collapse
|
14
|
Teplova VV, Isakova EP, Klein OI, Dergachova DI, Gessler NN, Deryabina YI. Natural Polyphenols: Biological Activity, Pharmacological Potential, Means of Metabolic Engineering (Review). APPL BIOCHEM MICRO+ 2018. [DOI: 10.1134/s0003683818030146] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
15
|
Fan M, Zhang G, Pan J, Gong D. An inhibition mechanism of dihydromyricetin on tyrosinase and the joint effects of vitamins B6, D3 or E. Food Funct 2017; 8:2601-2610. [DOI: 10.1039/c7fo00236j] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Dihydromyricetin occupies the active site of tyrosinase to avoid the entrance of the substrate and causes the inhibition of tyrosinase activity.
Collapse
Affiliation(s)
- Meihui Fan
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Deming Gong
- New Zealand Institute of Natural Medicine Research
- Auckland 2104
- New Zealand
| |
Collapse
|
16
|
Wu Y, Bai J, Zhong K, Huang Y, Gao H. A dual antibacterial mechanism involved in membrane disruption and DNA binding of 2R,3R-dihydromyricetin from pine needles of Cedrus deodara against Staphylococcus aureus. Food Chem 2016; 218:463-470. [PMID: 27719936 DOI: 10.1016/j.foodchem.2016.07.090] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 06/09/2016] [Accepted: 07/12/2016] [Indexed: 01/01/2023]
Abstract
The antibacterial activity and mechanism of 2R,3R-dihydromyricetin (DMY) against Staphylococcus aureus were investigated. The minimum inhibitory concentration of DMY against S. aureus was 0.125mg/ml, and the growth inhibitory assay also revealed that DMY showed a potent antibacterial activity against S. aureus. Massive nucleotide leakage and flow cytometric analysis demonstrated that DMY disrupted the membrane integrity of S. aureus. Morphological changes and membrane hyperpolarization of S. aureus cells treated with DMY further suggested that DMY destroyed cell membrane. Meanwhile, DMY probably interacted with membrane lipids and proteins, causing a significant reduction in membrane fluidity and changes in conformation of membrane protein. Moreover, DMY could interact with S. aureus DNA through the groove binding mode. Overall, the results suggested that DMY could be applied as a candidate for the development of new food preservatives as it achieved bactericidal activity by damaging cell membrane and binding to intracellular DNA.
Collapse
Affiliation(s)
- Yanping Wu
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China
| | - Jinrong Bai
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Zhong
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China
| | - Yina Huang
- Department of Public Health, West China Medical School, Sichuan University, Chengdu 610041, China.
| | - Hong Gao
- Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China.
| |
Collapse
|
17
|
Gąsowska-Bajger B, Wojtasek H. Reactions of Flavonoids with o-Quinones Interfere with the Spectrophotometric Assay of Tyrosinase Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5417-5427. [PMID: 27341415 DOI: 10.1021/acs.jafc.6b01896] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Flavonoids are important food components with antioxidant properties and many of them have been described as tyrosinase inhibitors. Oxidation of quercetin, kaempferol, morin, catechin, and naringenin by mushroom tyrosinase and their influence on the oxidation of l-dopa and l-tyrosine was studied. Reaction rates measured spectrophotometrically and by oxygen consumption differed substantially. All tested flavonoids reacted with 4-tert-butyl-o-benzoquinone and/or 4-methyl-o-benzoquinone, although at different rates. These reactions generated products whose UV-vis spectra either overlapped or did not overlap with the spectrum of dopachrome. They therefore strongly influence the kinetic analysis performed by measuring the absorbance at 475 nm during oxidation of l-dopa or l-tyrosine generating false inhibition or activation effects. This method is therefore inappropriate for monitoring the activity of this enzyme in the presence of flavonoids and other compounds possessing strong nucleophilic or reducing groups.
Collapse
Affiliation(s)
| | - Hubert Wojtasek
- Faculty of Chemistry, Opole University , Ul. Oleska 48, 45-052 Opole, Poland
| |
Collapse
|
18
|
Wu YP, Liang X, Liu XY, Zhong K, Gao B, Huang YN, Gao H. Cedrus deodara pine needle as a potential source of natural antioxidants: Bioactive constituents and antioxidant activities. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.02.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|