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Izu GO, Mfotie Njoya E, Tabakam GT, Nambooze J, Otukile KP, Tsoeu SE, Fasiku VO, Adegoke AM, Erukainure OL, Mashele SS, Makhafola TJ, Sekhoacha MP, Chukwuma CI. Unravelling the Influence of Chlorogenic Acid on the Antioxidant Phytochemistry of Avocado ( Persea americana Mill.) Fruit Peel. Antioxidants (Basel) 2024; 13:456. [PMID: 38671904 PMCID: PMC11047442 DOI: 10.3390/antiox13040456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/22/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Oxidative stress is pivotal in the pathology of many diseases. This study investigated the antioxidant phytochemistry of avocado (Persea americana Mill.) peel. Different solvent extracts (dichloromethane, ethyl acetate, methanol, and water) of avocado peel were subjected to total phenol and flavonoid quantification, as well as in vitro radical scavenging and ferric reducing evaluation. The methanol extract was subjected to gradient column chromatographic fractionation. Fraction 8 (eluted with hexane:chloroform:methanol volume ratio of 3:6.5:0.5, respectively) was subjected to LC-MS analysis. It was assessed for cellular inhibition of lipid peroxidation and lipopolysaccharide (LPS)-induced ROS and NO production. The DPPH radical scavenging mechanism of chlorogenic acid was investigated using Density Functional Theory (DFT). The methanol extract and fraction 8 had the highest phenol content and radical scavenging activity. Chlorogenic acid (103.5 mg/mL) and 1-O-caffeoylquinic acid (102.3 mg/mL) were the most abundant phenolics in the fraction. Fraction 8 and chlorogenic acid dose-dependently inhibited in vitro (IC50 = 5.73 and 6.17 µg/mL) and cellular (IC50 = 15.9 and 9.34 µg/mL) FeSO4-induced lipid peroxidation, as well as LPS-induced ROS (IC50 = 39.6 and 28.2 µg/mL) and NO (IC50 = 63.5 and 107 µg/mL) production, while modulating antioxidant enzyme activity. The fraction and chlorogenic acid were not cytotoxic. DFT analysis suggest that an electron transfer, followed by proton transfer at carbons 3'OH and 4'OH positions may be the radical scavenging mechanism of chlorogenic acid. Considering this study is bioassay-guided, it is logical to conclude that chlorogenic acid strongly influences the antioxidant capacity of avocado fruit peel.
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Affiliation(s)
- Gloria O. Izu
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
| | - Emmanuel Mfotie Njoya
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
| | - Gaetan T. Tabakam
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
| | - Jennifer Nambooze
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9301, South Africa; (J.N.); (K.P.O.)
| | - Kgalaletso P. Otukile
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9301, South Africa; (J.N.); (K.P.O.)
| | - Seiso E. Tsoeu
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa;
| | - Victoria O. Fasiku
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein 9301, South Africa; (V.O.F.); (A.M.A.)
| | - Ayodeji M. Adegoke
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein 9301, South Africa; (V.O.F.); (A.M.A.)
| | - Ochuko L. Erukainure
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein 2028, South Africa
| | - Samson S. Mashele
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
| | - Tshepiso J. Makhafola
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
| | - Mamello P. Sekhoacha
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein 9301, South Africa; (V.O.F.); (A.M.A.)
| | - Chika I. Chukwuma
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein 9301, South Africa; (G.O.I.); (E.M.N.); (G.T.T.); (S.S.M.); (T.J.M.)
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2
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Li L, Li Y, Wang P. Regulatory Effects Mediated by Enteromorpha prolifera Polysaccharide and Its Zn(II) Complex on Hypoglycemic Activity in High-Sugar High-Fat Diet-Fed Mice. Foods 2023; 12:2854. [PMID: 37569125 PMCID: PMC10417851 DOI: 10.3390/foods12152854] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/04/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
In order to investigate and develop functional foods of marine origin with hypoglycemic activity, Enteromorpha prolifera polysaccharide-Zn(II) (EZ) complex was first prepared by marine resourced E. prolifera polysaccharide (EP) and ZnSO4 and their anti-diabetes activities against high-sugar and high-fat-induced diabetic mice were evaluated. The detailed structural characterization of EZ was elucidated by UV-Vis spectroscopy, infrared spectroscopy, and monosaccharide composition determination. The pharmacological research suggests that EZ has a potent hypoglycemic effect on high-sugar and high-fat-induced diabetic mice by inhibiting insulin resistance, improving dyslipidemia, decreasing inflammatory status, repairing pancreas damage, as well as activating the IRS/PI3K/AKT signaling pathway and regulating GLUT2 gene expression. At the same time, microbiota analysis indicates that a high dose of EZ could enhance the abundance of dominant species, such as Staphylococcaceae, Planococcaceae, Muribaculaceae, Aerococcaceae, and Lacrobacillaceae, in intestinal microbiota distribution. Thus, EZ could be considered as a potential candidate for developing an ingredient of functional foods for Zn(II) supplements with hypoglycemic activity.
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Affiliation(s)
- Liyan Li
- Medical School, Huanghe Science and Technology College, Zhengzhou 450063, China;
| | - Yuanyuan Li
- Food Science and Engineering College, Ocean University of China, Qingdao 266003, China;
| | - Peng Wang
- Food Science and Engineering College, Ocean University of China, Qingdao 266003, China;
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3
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Gur’eva YA, Zalevskaya OA, Nikolaeva NS, Aleksandrova YR, Yandulova EY, Neganova ME, Slepukhin PA, Kutchin AV. Chiral zinc complexes with terpene derivatives of ethylenediamine: synthesis and biological activity. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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4
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Fedenko VS, Landi M, Shemet SA. Metallophenolomics: A Novel Integrated Approach to Study Complexation of Plant Phenolics with Metal/Metalloid Ions. Int J Mol Sci 2022; 23:ijms231911370. [PMID: 36232672 PMCID: PMC9570091 DOI: 10.3390/ijms231911370] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 01/10/2023] Open
Abstract
Plant adaptive strategies have been shaped during evolutionary development in the constant interaction with a plethora of environmental factors, including the presence of metals/metalloids in the environment. Among adaptive reactions against either the excess of trace elements or toxic doses of non-essential elements, their complexation with molecular endogenous ligands, including phenolics, has received increasing attention. Currently, the complexation of phenolics with metal(loid)s is a topic of intensive studies in different scientific fields. In spite of the numerous studies on their chelating capacity, the systemic analysis of phenolics as plant ligands has not been performed yet. Such a systematizing can be performed based on the modern approach of metallomics as an integral biometal science, which in turn has been differentiated into subgroups according to the nature of the bioligands. In this regard, the present review summarizes phenolics–metal(loid)s’ interactions using the metallomic approach. Experimental results on the chelating activity of representative compounds from different phenolic subgroups in vitro and in vivo are systematized. General properties of phenolic ligands and specific properties of anthocyanins are revealed. The novel concept of metallophenolomics is proposed, as a ligand-oriented subgroup of metallomics, which is an integrated approach to study phenolics–metal(loid)s’ complexations. The research subjects of metallophenolomics are outlined according to the methodology of metallomic studies, including mission-oriented biometal sciences (environmental sciences, food sciences and nutrition, medicine, cosmetology, coloration technologies, chemical sciences, material sciences, solar cell sciences). Metallophenolomics opens new prospects to unite multidisciplinary investigations of phenolic–metal(loid) interactions.
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Affiliation(s)
- Volodymyr S. Fedenko
- Research Institute of Biology, Oles Honchar Dnipro National University, 72 Gagarin Avenue, 49010 Dnipro, Ukraine
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto, 80I-56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2216620
| | - Sergiy A. Shemet
- Ukrainian Association for Haemophilia and Haemostasis “Factor D”, Topola-3, 20/2/81, 49041 Dnipro, Ukraine
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5
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Ramorobi LM, Matowane GR, Mashele SS, Bonnet SL, Noreljaleel AEM, Swain SS, Makhafola TJ, Chukwuma CI. Bioactive synergism between zinc mineral and p-coumaric acid: A multi-mode glycemic control and antioxidative study. J Food Biochem 2022; 46:e14360. [PMID: 35929608 DOI: 10.1111/jfbc.14360] [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: 04/01/2022] [Revised: 06/24/2022] [Accepted: 07/20/2022] [Indexed: 12/19/2022]
Abstract
Natural supplements are important in diabetes and oxidative stress management. A complexation-mediated antihyperglycemic and antioxidant synergism between zinc(II) and p-coumaric acid was investigated. p-Coumaric acid was complexed with ZnSO4 and characterized by FT-IR, 1 H NMR, and mass spectroscopy. The antioxidant and antihyperglycemic potential of the complex and precursors were evaluated with different experimental models. Molecular docking with target proteins linked to diabetes was performed. A Zn(II)-bicoumarate.2H2 O complex was formed. The in vitro radical scavenging, α-glucosidase inhibitory, antiglycation, and anti-lipid peroxidative activities of the complex were several folds stronger than p-coumaric acid. In Chang liver cells and rat liver tissues, the complex inhibited lipid peroxidation (IC50 = 56.2 and 398 μM) and GSH depletion (IC50 = 33.9 and 38.7 μM), which was significantly stronger (2.3-5.4-folds) than p-coumaric acid and comparable to ascorbic acid. Zn(II) and p-coumaric synergistically modulated (1.7- and 2.8-folds than p-coumaric acid) glucose uptake in L-6 myotubes (EC50 = 10.7 μM) and rat muscle tissue (EC50 = 428 μM), which may be linked to the observed complexation-mediated increase in tissue zinc uptake. Glucose uptake activity was accompanied by increased hexokinase activity, suggesting increased glucose utilization. Docking scores α-glucosidase, GLUT-4, and PKB/Akt showed stronger interaction with the complex (-6.31 to -6.41 kcal/mol) compared to p-coumaric acid (-7.18 to -7.74 kcal/mol), which was influenced by the Zn(II) and bicoumarate moieties of the complex. In vitro, the complex was not hepatotoxic or myotoxic. Zn(II) complexation may be a therapeutic approach for improving the antioxidative and glycemic control potentials of p-coumaric acid. PRACTICAL APPLICATIONS: In functional medicine, natural supplements, plant-derived phenolics, and nutraceuticals are becoming popular in the management of diseases, including diabetes and oxidative stress. This has been largely attributed to their perceived holistic medicinal profile and the absence of notable toxicity concerns. In the past two decades, considerable attention has been drawn toward zinc mineral as a possible therapeutic supplement for diabetes due to its role in insulin secretion and reported insulin mimetic potentials. p-Coumaric acid is a known natural antioxidant with reported diabetes-related pharmacological effects. In this study, we took advantage of these properties and complexed both natural supplements, which resulted in a more potent nutraceutical with improved glycemic control and antioxidant potential. The complexation-mediated synergistic interaction between zinc and p-coumaric acid could be an important therapeutic approach in improving the use of these natural supplements or nutraceuticals in managing diabetes and associated oxidative complications.
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Affiliation(s)
- Limpho M Ramorobi
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Godfrey R Matowane
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Samson S Mashele
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Susanna L Bonnet
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Anwar E M Noreljaleel
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Shasank S Swain
- Division of Microbiology & NCDs, ICMR-Regional Medical Research Centre, Bhubaneswar, India
| | - Tshepiso J Makhafola
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Chika I Chukwuma
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
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6
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Bao Y, Tian C, Yu H, He J, Song K, Guo J, Zhou X, Zhuo O, Liu S. In Situ Green Synthesis of Graphene Oxide-Silver Nanoparticles Composite with Using Gallic Acid. Front Chem 2022; 10:905781. [PMID: 35572121 PMCID: PMC9091365 DOI: 10.3389/fchem.2022.905781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 04/11/2022] [Indexed: 11/19/2022] Open
Abstract
The adoption of plant-derived natural products to synthesize metal nanoparticles and their complexes has the advantages of mild reaction conditions, environmental protection, sustainability and simple operation compared with traditional physical or chemical synthesis methods. Herein, silver nanoparticles (AgNPs) were in situ synthesized on the surface of graphene oxide (GO) by a “one-pot reaction” to prepare graphene oxide-silver nanoparticles composite (GO-AgNPs) based on using AgNO3 as the precursor of AgNPs and gallic acid (GA) as the reducing agent and stabilizer. The size and morphology of GO-AgNPs were characterized by ultraviolet-visible spectrophotometer (Uv-vis), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), X-ray diffractometer (XRD) and dynamic light scattering (DLS). The effects of pH, temperature, time and material ratio on the synthesis of GO-AgNPs were investigated experimentally. The results showed that ideal GO-AgNPs could be prepared under the conditions of pH = 9, 45°C, 2 h and the 2:1 of molar ratio of AgNO3 to GA. The AgNPs within GO-AgNPs are highly crystalline spherical particles with moderate density on the surface of GO, and the size of AgNPs is relatively uniform and determined to be about 8.19 ± 4.21 nm. The research results will provide new ideas and references for the green synthesis of metal nanoparticles and their complexes using plant-derived natural products as the reducing agent and stabilizer.
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Affiliation(s)
- Yunhui Bao
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
| | - Chunlian Tian
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
| | - Huazhong Yu
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Jian He
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Ke Song
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Jie Guo
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Xianwu Zhou
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Ou Zhuo
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
| | - Shima Liu
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, China
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, China
- *Correspondence: Shima Liu,
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7
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Huang H, Gong W, Wang X, He W, Hou Y, Hu J. Self-Assembly of Naturally Small Molecules into Supramolecular Fibrillar Networks for Wound Healing. Adv Healthc Mater 2022; 11:e2102476. [PMID: 35306757 DOI: 10.1002/adhm.202102476] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/17/2022] [Indexed: 12/21/2022]
Abstract
Self-assemblies of bioactively natural compounds into supramolecular hydrogels without structural modifications are of interest to improve their sustained releases and bioavailabilities in vivo. However, it is still a formidable challenge to dig out such a naturally small molecule with a meticulous structure which can be self-assembled to form a hydrogel for biomedical applications. Here, a new hydrogel consisting only of gallic acid (GA) via π-π stacking and hydrogen bond interactions, whereas none of GA analogues can form the similar supramolecular hydrogels, is reported. This interesting phenomenon is intriguing to further investigate the potential applications of GA hydrogels in wound healing. Notably, this GA hydrogel has rod-like structures with lengths varying from 10 to 100 µm. The biocompatibility and antibacterial tests prove that this well-assembled GA hydrogel has no cytotoxicity and excellent antibacterial activities against Escherichia coli and Staphylococcus aureus. Moreover, the GA hydrogel can significantly accelerate the process of wound healing with or without bacterial infections by mediation of inflammation signaling pathways. It is believed that the current study may shed a new light on the design of a supramolecular hydrogel based on self-assemblies of naturally small molecules to improve their bioavailabilities and diversify their uses in biomedical applications.
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Affiliation(s)
- Haibo Huang
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Wei Gong
- Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic University Dalian 116034 China
| | - Xinchuang Wang
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Wanying He
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Yiyang Hou
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Jiangning Hu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic University Dalian 116034 China
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8
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Oke IM, Ramorobi LM, Mashele SS, Bonnet SL, Makhafola TJ, Eze KC, Noreljaleel AEM, Chukwuma CI. Vanillic acid-Zn(II) complex: a novel complex with antihyperglycaemic and anti-oxidative activity. J Pharm Pharmacol 2021; 73:1703-1714. [PMID: 34109975 DOI: 10.1093/jpp/rgab086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/15/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVES Our aim was to synthesize, characterize and evaluate the antihyperglycaemic and anti-oxidative properties of a new Zn(II) complex of vanillic acid. METHODS The complex was synthesized using ZnSO4.7H2O and vanillic acid as precursors. NMR and FTIR techniques were used to characterize the synthesized complex. The cytotoxicity of the complex was measured. The antihyperglycemic and anti-oxidative properties of the complex were evaluated using in vitro, cell-based and ex vivo models and compared with those of its precursors. KEY FINDINGS Zn(II) coordinated with vanillic acid via a Zn(O6) coordination, with the complex having three moieties of vanillic acid. The radical scavenging, Fe3+ reducing and hepatic antilipid peroxidative activity of the complex were, respectively, 2.3-, 1.8- and 9.7-folds more potent than vanillic acid. Complexation increased the α-glucosidase and glycation inhibitory activity of vanillic acid by 3- and 2.6-folds, respectively. Zn(II) conferred potent L-6 myotube (EC50 = 20.4 μm) and muscle tissue (EC50 = 612 μm) glucose uptake effects on vanillic acid. Cytotoxicity evaluation showed that the complex did not reduce the viability of L-6 myotubes and Chang liver cells. CONCLUSIONS The data suggest that Zn(II)-vanillic acid complex had improved bioactivity relative to vanillic acid. Thus, Zn(II) may be further studied as an antihyperglycaemic and anti-oxidative adjuvant for bioactive phenolic acids.
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Affiliation(s)
- Ifedolapo M Oke
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
| | - Limpho M Ramorobi
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
| | - Samson S Mashele
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
| | - Susanna L Bonnet
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Tshepiso J Makhafola
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
| | - Kenneth C Eze
- Faculty of Medicine, Nnamdi Azikiwe University, Awka (Nnewi Campus), Anambra State, Nigeria
| | - Anwar E M Noreljaleel
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Chika I Chukwuma
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, South Africa
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Heath RS, Ruscoe RE, Turner NJ. The beauty of biocatalysis: sustainable synthesis of ingredients in cosmetics. Nat Prod Rep 2021; 39:335-388. [PMID: 34879125 DOI: 10.1039/d1np00027f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covering: 2015 up to July 2021The market for cosmetics is consumer driven and the desire for green, sustainable and natural ingredients is increasing. The use of isolated enzymes and whole-cell organisms to synthesise these products is congruent with these values, especially when combined with the use of renewable, recyclable or waste feedstocks. The literature of biocatalysis for the synthesis of ingredients in cosmetics in the past five years is herein reviewed.
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Affiliation(s)
- Rachel S Heath
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Rebecca E Ruscoe
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Nicholas J Turner
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
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10
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Akuru EA, Chukwuma CI, Oyeagu CE, Erukainure OL, Mashile B, Setlhodi R, Mashele SS, Makhafola TJ, Unuofin JO, Abifarin TO, Mpendulo TC. Nutritional and phytochemical profile of pomegranate ("Wonderful variety") peel and its effects on hepatic oxidative stress and metabolic alterations. J Food Biochem 2021; 46:e13913. [PMID: 34453451 DOI: 10.1111/jfbc.13913] [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] [Received: 07/11/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 12/17/2022]
Abstract
The peel of pomegranate fruit contains antioxidant phytochemicals that may potentiate health benefits but remain under-explored. We evaluated the antioxidant, nutritional and phytochemical profiles of the peel of the "Wonderful" variety pomegranate and its influence on oxidative metabolic alterations in hepatic tissue. The peel contained appreciable amounts of some beneficial trace minerals and both essential and non-essential amino acids. Mostly Omega 3 and 6 fatty acids were found. The peel extracts exhibited in vitro radical scavenging and Fe3+ reducing antioxidant activities and dose-dependently prevented oxidative stress-induced lipid peroxidation increase and GSH depletion in both Chang liver cells (IC50 = 18.0 ± 1.46 and 11.2 ± 0.99 µg/mL, respectively) and isolated rat liver (IC50 = 96.7 ± 3.34 and 19.4 ± 3.36 µg/mL, respectively). The antioxidant effects were comparable to that of ascorbic and correlated with their phenolic profile. HPLC analysis further identified antioxidant phenolic acids (gallic acid, syringic acid ferulic acid p-coumaric acid or trans-4-hydroxycinnamic acid, etc.). The peel did not cause notable cytotoxicity in liver and kidney cells, which suggest minimal safety concerns. Metabolomics analysis revealed alterations in fatty acid, amino acids, and nucleic acid metabolisms following the induction of oxidative stress. These alterations were improved in the acetone extract-treated tissues, with concomitant activation of vitamin and selonocompound metabolisms. Data suggest that the fruit peel of "Wonderful" pomegranate may be an underutilized source of functional nutrients and antioxidants phenolic acids for optimum body function and mitigation hepatic oxidative damage and metabolic alterations as well as associated diseases. PRACTICAL APPLICATIONS: Although underutilized, documented evidence have shown that the wastes, like peels from fruits contain more phytochemicals than the edible pulp, making them potential sources of bioactive principles. In this study we exposed the nutritional, phytochemical and oxidative stress-related medicinal benefits of the peel of "Wonderful" pomegranate variety. The peel could ameliorate oxidative hepatic metabolic alterations. The peel of this fruit could be a source of beneficial micro and macro nutrients, as well as bioactive phenolics to improve oxidative health and mitigate oxidative hepatic damage and associated disease states. Medicinally utilizing the fruit's peel could reduce underutilized fruit wastes, increase the value of the fruit and benefit the bioeconomy.
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Affiliation(s)
- Eunice A Akuru
- Department of Livestock and Pasture Science, University of Fort Hare, Alice, South Africa.,Department of Animal Science, University of Nigeria, Nsukka, Nigeria
| | - Chika I Chukwuma
- Center for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Chika E Oyeagu
- Department of Agriculture, Faculty of Applied Sciences, Cape Peninsula University of Technology, Wellington Campus, Cape Town, South Africa
| | - Ochuko L Erukainure
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Boitumelo Mashile
- Center for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Reaotshepa Setlhodi
- Center for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Samson S Mashele
- Center for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa.,Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Tshepiso J Makhafola
- Center for Quality of Health and Living, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Jeremiah O Unuofin
- Department of Life and Consumer Sciences, University of South Africa, Florida, South Africa
| | - Taiwo O Abifarin
- Center for Medicinal Plants and Economic Development, Department of Botany, University of Fort Hare, Alice, South Africa
| | - Thando C Mpendulo
- Department of Livestock and Pasture Science, University of Fort Hare, Alice, South Africa
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11
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Tshane LSL, Mashele SS, Matowane GR, Bonnet SL, Makhafola TJ, Noreljaleel AEM, Swain SS, Sekhoacha M, Chukwuma CI. Zinc(II) mineral increased the in vitro, cellular and ex vivo antihyperglycemic and antioxidative pharmacological profile of p-hydroxybenzoic acid upon complexation. J Food Biochem 2021; 45:e13609. [PMID: 33458829 DOI: 10.1111/jfbc.13609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/13/2020] [Accepted: 12/28/2020] [Indexed: 01/13/2023]
Abstract
In this study, zinc was complexed with p-hydroxybenzoic acid to synthesize a complex with improved pharmacological profile. Proton NMR and FTIR analysis were used to characterize the complex. Several in vitro, cellular and ex vivo antihyperglycemic and antioxidative assays were used to evaluate the potency of the complex, relative to its precursors, while molecular docking was used to investigate interactions with insulin signaling targets (GLUT-4 and PKB). Also, the cytotoxicity of the complex was evaluated in Chang liver cells and L-6 myotubes using MTT assay. Complexation was through a Zn(O4 ) coordination. This afforded the complex two moieties of p-hydroxybenzoic acid, which influenced its activities. While the complex retained the α-glucosidase and α-amylase inhibitory activity of its phenolic acid precursor, complexation increased in vitro and ex vivo antioxidant activity of the phenolic acid by 1.4 to 10.5-folds. Complexation, further, conferred a potent antiglycation activity and L-6 myotube and psoas muscle glucose uptake properties (2.1 to 3.5-folds more than p-hydroxybenzoic acid) on the phenolic acid, without notably inhibiting or reducing the viability of Chang liver cells (IC50 = 5,120 μM) and L-6 myotubes (IC50 = 2,172 μM). Docking studies showed the complex had better interactions with insulin signaling targets (GLUT-4 and PKB) than p-hydrobenzoic acid, which may influence its glucose uptake effects. Data suggest that Zn(II) complexation improved and/or broadened the pharmacological profile of p-hydroxybenzoic acid, thus, may be further studied as a promising adjuvant for phenolic acids. PRACTICAL APPLICATIONS: Most antidiabetic drugs are used as two or more combinations to achieve better efficacy, which may cause drug interaction and increase the risk of side effects associated with these drugs. This study takes advantage of the glycemic control property of zinc and the antioxidant and/or diabetes-related pharmacological properties of p-hydroxybenzoic acid to form a complex with improved and broader antioxidant and antihyperglycemic profile and minimal toxicity concerns. With appropriate further studies, Zn(II)-phenolic acid complexes may be safe nutraceuticals for diabetes and related oxidative complications.
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Affiliation(s)
- Lindah S L Tshane
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Samson S Mashele
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Godfrey R Matowane
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Susanna L Bonnet
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Tshepiso J Makhafola
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Anwar E M Noreljaleel
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Shasank S Swain
- Division of Microbiology and NCDs, ICMR-Regional Medical Research Centre, Bhubaneswar, India
| | - Mamello Sekhoacha
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Chika I Chukwuma
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
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12
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Chukwuma CI. Zinc(II) complexes in diabetes management: Plant-derived phenolics as understudied promising ligands. J Food Biochem 2020; 44:e13477. [PMID: 32984986 DOI: 10.1111/jfbc.13477] [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: 08/17/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 11/28/2022]
Abstract
Zinc mineral has been known as a supplement for diabetics due to its deficiency in diabetics. Its glycemic control and insulin mimetic properties have been reported. Thus, it has been complexed with numerous types of ligands to improve the glycemic control property of the ligands. Unfortunately, mostly synthetic ligands with little or no bioactive properties and toxicity concerns have been complexed with Zn, while plant-derived dietary phenolics have rarely been explored as ligand for Zn complexation, despite their medicinal credence and minimal toxicity concern. In this letter, plant-derived phenolics have been presented as promising ligands for Zn(II) in developing potent antidiabetic and antioxidative nutraceutical complexes with improved and multi-facet bioactivity profile, as well as minimal toxicity concerns. Thus, fostering the paradigm shift from synthetic medicine toward dietary and functional medicine. PRACTICAL APPLICATIONS: Potentially, complexing Zn(II) with bioactive plant-derived dietary phenolics could result in novel nutraceuticals and/or supplements with improved and multi-facet bioactivity profile, as well as minimal toxicity concerns.
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Affiliation(s)
- Chika Ifeanyi Chukwuma
- Centre for Quality of Health and Living (CQHL), Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, Free State, 9301, South Africa
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