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Thinh BB, Khoi NT, Doudkin RV, Thin DB, Ogunwande IA. Chemical composition of essential oil and antioxidant activity of the essential oil and methanol extracts of Knema globularia (Lam.) Warb. from Vietnam. Nat Prod Res 2022; 37:1625-1631. [PMID: 35876169 DOI: 10.1080/14786419.2022.2103698] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
This study is the first to investigate the chemical composition of essential oil and antioxidant activity of the essential oil and methanol extracts from the leaves of Knema globularia (Lam.) Warb. from Vietnam. According to gas chromatography and gas chromatography-mass spectrometry analysis, the major constituents of K. globularia essential oil were β-elemene (25.48%), α-copaene (17.05%), β-caryophyllene (9.37%), and α-humulene (8.42%). The antioxidant activity of the samples was determined using DPPH and ABTS methods. In both assays, the polar subfraction of the methanolic extract showed better antioxidative capacity than the nonpolar subfraction and the essential oil. In addition, the amounts of total phenol value in the polar subfraction and the nonpolar subfraction were determined to be 113.84 μg/mg and 47.52 μg/mg, respectively. The findings demonstrate that the essential oil and methanol extracts of K. globularia possess significant antioxidant activities and may be a new potential source of natural antioxidants.
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Affiliation(s)
- Bui B. Thinh
- Faculty of Natural Sciences, Hong Duc University, Thanh Hoa city, Vietnam
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russia
| | - Nguyen T. Khoi
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russia
| | - Roman V. Doudkin
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russia
- Botanical Garden-Institute, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Dau B. Thin
- Division of Training Management, Hong Duc University, Thanh Hoa city, Vietnam
| | - Isiaka A. Ogunwande
- Science and Technology Division, Foresight Institute of Research and Translation, Ibadan, Nigeria
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Barman R, Bora PK, Saikia J, Kemprai P, Saikia SP, Haldar S, Banik D. Nutmegs and wild nutmegs: An update on ethnomedicines, phytochemicals, pharmacology, and toxicity of the Myristicaceae species. Phytother Res 2021; 35:4632-4659. [PMID: 33987899 DOI: 10.1002/ptr.7098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 03/06/2021] [Accepted: 03/09/2021] [Indexed: 11/09/2022]
Abstract
Prized medicinal spice true nutmeg is obtained from Myristica fragrans Houtt. Rest species of the family Myristicaceae are known as wild nutmegs. Nutmegs and wild nutmegs are a rich reservoir of bioactive molecules and used in traditional medicines of Europe, Asia, Africa, America against madness, convulsion, cancer, skin infection, malaria, diarrhea, rheumatism, asthma, cough, cold, as stimulant, tonics, and psychotomimetic agents. Nutmegs are cultivated around the tropics for high-value commercial spice, used in global cuisine. A thorough literature survey of peer-reviewed publications, scientific online databases, authentic webpages, and regulatory guidelines found major phytochemicals namely, terpenes, fatty acids, phenylpropanoids, alkanes, lignans, flavonoids, coumarins, and indole alkaloids. Scientific names, synonyms were verified with www.theplantlist.org. Pharmacological evaluation of extracts and isolated biomarkers showed cholinesterase inhibitory, anxiolytic, neuroprotective, anti-inflammatory, immunomodulatory, antinociceptive, anticancer, antimicrobial, antiprotozoal, antidiabetic, antidiarrhoeal activities, and toxicity through in-vitro, in-vivo studies. Human clinical trials were very few. Most of the pharmacological studies were not conducted as per current guidelines of natural products to ensure repeatability, safety, and translational use in human therapeutics. Rigorous pharmacological evaluation and randomized double-blind clinical trials are recommended to analyze the efficacy and therapeutic potential of nutmeg and wild nutmegs in anxiety, Alzheimer's disease, autism, schizophrenia, stroke, cancer, and others.
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Affiliation(s)
- Rubi Barman
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Pranjit Kumar Bora
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Jadumoni Saikia
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India
| | - Phirose Kemprai
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Siddhartha Proteem Saikia
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Saikat Haldar
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Dipanwita Banik
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
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Chuenban C, Sombatsri A, Sribuhom T, Pornchoo C, Prawan A, Tontapha S, Amornkitbamrung V, Yenjai C. Knecorticosanones C-H from the fruits of Knema globularia (Lam.) warb. RSC Adv 2021; 11:4097-4103. [PMID: 35424356 PMCID: PMC8694366 DOI: 10.1039/d0ra10498a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/29/2020] [Indexed: 01/07/2023] Open
Abstract
Six undescribed polyketides, 1–6, were discovered from the fruits of Knema globularia (Lam.) warb. Two known polyketides and three known lignans were also isolated. Cytotoxicities against HepG2 and KKU-M156 cells of all polyketides were evaluated. Compound 1 displayed the most cytotoxic activity against HepG2 and KKU-M156 cell lines with IC50 values of 1.57 ± 0.37 and 1.78 ± 0.14 μg mL−1, respectively. The structure of all isolates was identified using spectroscopic methods including NMR, IR, MS and ECD. Compound 1 displayed the most cytotoxic activity against HepG2 and KKU-M156 cell lines with IC50 values of 1.57 ± 0.37 and 1.78 ± 0.14 μg mL−1, respectively.![]()
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Affiliation(s)
- Chindawadee Chuenban
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand +66-4320-2222-41 ext. 12243
| | - Aonnicha Sombatsri
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand +66-4320-2222-41 ext. 12243
| | - Thurdpong Sribuhom
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand +66-4320-2222-41 ext. 12243
| | - Chanakan Pornchoo
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University Khon Kaen 40002 Thailand
| | - Auemduan Prawan
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University Khon Kaen 40002 Thailand
| | - Sarawut Tontapha
- Integrated Nanotechnology Research Centre, Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
| | - Vittaya Amornkitbamrung
- Integrated Nanotechnology Research Centre, Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
| | - Chavi Yenjai
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand +66-4320-2222-41 ext. 12243
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Pham TV, Bach HKT, Ho DV, Nguyen BC. Chemical constituents from the Knema globularia fruits and their in vitro cytotoxicity. Nat Prod Res 2020; 36:256-262. [PMID: 32519564 DOI: 10.1080/14786419.2020.1777416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Two new compounds, designated as knecorticosanones A-B (1-2), along with three known compounds (3-5) were isolated from the fruits of Knema globularia. Their structures were elucidated by extensive spectroscopy analysis, including 1D- and 2D-NMR, UV, IR, and HRESIMS and by comparison with the reported data in the literature. Compounds 1-5 were evaluated for their cytotoxicity. Knecorticosanone B (2) and malabaricone D (5) exhibited moderate cytotoxic effect against Hep-G2, MCF-7 and SK-LU-1 cell lines with IC50 values ranging from 8.76 ± 1.02 to 18.74 ± 1.75 μM while knecorticosanone A (1), virolane (3) and 7-hydroxy-3',4'-methylenedioxyflavan (4) exhibited weak inhibitory effect against these cell lines with IC50 values ranging from 25.85 ± 2.75 to 66.75 ± 2.08 μM.
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Affiliation(s)
- Ty Viet Pham
- Faculty of Chemistry, University of Education, Hue University, Hue City, Vietnam
| | - Hieu Kim Thi Bach
- Faculty of Chemistry, University of Education, Hue University, Hue City, Vietnam
| | - Duc Viet Ho
- Faculty of Pharmacy, University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Bao Chi Nguyen
- Department of Science, Technology & International Relations, Hue University, Hue City, Vietnam
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Siddiqui MS, Memon AA, Memon S, Baloch SG. Cuscuta reflexaas a Rich Source of Bioactive Phenolic Compounds. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/10496475.2017.1280867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Maria Saleh Siddiqui
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Ayaz Ali Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shahabuddin Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shabana Gul Baloch
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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