Tropical Journal of Natural Product Research (TJNPR) is the official scientific publication of the Natural Product Research group, University of Benin; and it is available in both printed and electronic formats. The journal is published monthly.

Tropical Journal of Natural Product Research (TJNPR) is a peer-reviewed, open access online international journal which publishes original research papers. The journal welcomes submission from scholars and experts for possible publication from all over the world. The scope of the journal includes: Pharmaceutical research, chemistry and biochemistry of naturally occurring compounds, biological evaluation of crude extracts, ethnomedicine, traditional and complementary medicine, ethnopharmacology, biomedical research, Biotechnology, Evaluation of natural substances of land and sea and of plants, microbes and animals, pharmacognosy, bioavailability, clinical, pharmacological, toxicological studies and pharmacokinetics of phytochemicals, Isolation and characterization of compounds, structure elucidation, synthesis and experimental biosynthesis of natural Product as well as developments of methods in these areas are welcomed in the journal. Finally, research papers in fields on the chemistry-biology boundary, papers discussing the screening of natural Product for biological activity against different health targets are also encouraged.

Current Issue

Vol. 7 No. 4 (2023): Tropical Journal of Natural Product Research (TJNPR)

Published: 2023-05-01

Articles

The Potential Role of Vitamin D Administration in The Skin Aging Process Through The Inflammatory Pathway: A Systematic Review

http://www.doi.org/10.26538/tjnpr/v7i4.1

Maria T.F. Kristianti, Hanna Goenawan, Achadiyani Achadiyani, Nova Sylviana, Ronny Lesmana

2675-2681

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Pharmacist Interventions and Medication Adherence of H. Pylori-Infected Patients: A Review of Randomized Controlled Studies

http://www.doi.org/10.26538/tjnpr/v7i4.2

Aiman A Shoiab

2682-2687

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Chemical Composition, Acute Oral Toxicity and Analgesic Activity of Hydroalcoholic Extracts of Mimusops coriacea (A.DC) Miq (Sapotaceae)

http://www.doi.org/10.26538/tjnpr/v7i4.3

Katherine E. Bustamante-Pesantes, Migdalia Miranda-Martínez, Yamilet I. Gutiérrez-Gaitén, Iván A.C. Guaranda, Oswaldo  Pesantes-Dominguez, Mercedes Campo Fernández

2688-2695

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Chemical Composition and Antibacterial Activity of the Essential Oil from Erinacea anthyllis Link (Fabaceae)

http://www.doi.org/10.26538/tjnpr/v7i4.4

Souhir Boureghida, Nabila Slougui, Hamza Fadel, Hicham Hazmoune, Sabrina Bicha

2696-2700

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Effect of Curcumin (Standard and Supplement) with Zinc on Reproductive Hormones in Polycystic Ovary Syndrome (PCOS) Rats

http://www.doi.org/10.26538/tjnpr/v7i4.5

Suaad M. Abd-Alqader, Sameerah A. Zearah, Iqbal J. Al-Assadi

2701-2707

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Chemical Composition of Moroccan Commercial Essential Oils of Mint: Mentha Spicata, Mentha Piperita, and Mentha Pulegium

http://www.doi.org/10.26538/tjnpr/v7i4.6

Arrahmouni Rayan, Ouazzani Chadia, Er-Ramly Azzedine, Moustaghfir Abdellah, Dami Abdallah, Ballouch Lhousseine

:2708-2712

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Effect of Isolation Techniques on the Quantity, Quality, and Antimicrobial Activity of Lavandula dentata Essential Oils

http://www.doi.org/10.26538/tjnpr/v7i4.7

Sarah B.E. Jilali, Ihamdane Rachid, Beniaich Ghada, Moubchir Tarik, Rezouki Sanae, Khadmaoui Abderrazzak

2713-2717

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Identification of Active Fatty Acid Mixture Extracted from Rice Bran Oil Using NMR Spectroscopy

http://www.doi.org/10.26538/tjnpr/v7i4.8

Patamapan Tamvapee, Siritron Samosorn, Ramida Watanapokasin

2756-2759

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Efficacy of Nitraria retusa L. Fruits Aqueous and Methanol Extracts as Antioxidant and Anti-inflammatory Activities on Carrageenan-Induced Paw Edema in Rats.

http://www.doi.org/10.26538/tjnpr/v7i4.9

Sahem Y Almasarwah, Sawsan A Oran, Rula M Darwish

2725-2729

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Formulation of Microemulsions Containing Rambutan Peel Extract and Their Antibacterial Activities

http://www.doi.org/10.26538/tjnpr/v7i4.10

Pornsak Sriamornsak, Arzu Polat, Wantanwa Krongrawa, Anne Krüger-Genge, Joachim Storsberg, Tassilo Seidler, Mont Kumpugdee-Vollrath

2730-2736

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Phytochemical Screening, Antioxidant Activity and α‐Glucosidase Inhibitability of Bauhinia  blakeana Dunn Leaf and Flower Extracts from Vietnam

http://www.doi.org/10.26538/tjnpr/v7i4.11

Chen V. Tran, Tham M. Vo, Phong T. Bui, Duc N.P. Duong, Lam X.N. Duong, Diep Q. Dinh, Hien T.T. Nguyen

2737-2743

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Arginase II Inhibitory Activity of Phenolic Compounds from Caesalpinia sappan L.

http://www.doi.org/10.26538/tjnpr/v7i4.12

Dao C. To, Manh H. Tran, Phi H. Nguyen, Nguyen T. Ai Nhung, Tu T. T. Nguyen

2744-2748

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Bioactive Potential of Cephalosporium sp. a Fungal Endophyte Isolated from Phyllanthus niruri L.

http://www.doi.org/10.26538/tjnpr/v7i4.13

Rollando Rollando, Yuyun Yuniati, Eva Monica

2749-2755

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Identification of Active Fatty Acid Mixture Extracted from Rice Bran Oil Using NMR Spectroscopy

http://www.doi.org/10.26538/tjnpr/v7i4.14

Patamapan Tamvapee, Siritron Samosorn, Ramida Watanapokasin

2756-2759

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Antibacterial Activity, TLC-Bioautography Analysis, and Determination of Bioactive Components in Ethyl Acetate Extract of Robusta Coffee Leaf (Coffea canephora L.) From Aceh, Indonesia

http://www.doi.org/10.26538/tjnpr/v7i4.15

Rasidah Rasidah, Suryawati Suryawati, Munira Munira, Noni Zakiah, Sri Rahayu, Vonna Aulianshah

2760-2764

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Climatological effects on Chemical Composition, Biological Activity of Essential oil from Eucalyptus globulus Leaves and Seeds

http://www.doi.org/10.26538/tjnpr/v7i4.16

Filali S. Khaoula, Chadli Nour-edddine, Bouchama Chaymae, Raoui S. Mohammed, Zindine Abdellah, El ghadraoui Lahsen, Errachidi Faouzi

2765-2772

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Exploration of Phytochemical and Sun Protection Efficacy of Anthocephalus chinensis Leaves Extracts

http://www.doi.org/10.26538/tjnpr/v7i4.17

Zulphikar Ali, Sudhakar Kaushik, Ranjit Singh, Bhawana Bhatt

2773-2776

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Pre-treatment with Hibiscus Sabdariffa Linn calyx Extract is Protective Against SubChronic Paracetamol Hepatotoxicity in Mice

http://www.doi.org/10.26538/tjnpr/v7i4.18

Blessing O. Orji, Gloria O. Omaji, Frederick O. Obi

2777-2781

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Assessment of Antioxidant and Polyphenol Profile of Chrysobalanus icaco from Southern Nigeria

http://www.doi.org/10.26538/tjnpr/v7i4.19

Queen O. Stephen-Onojedje, Samuel O. Asagba, Helen E. Kadiri

2782-2789

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Isolation, Molecular Characterization and Application of Aspergillus niger and Penicillium chrysogenum with Biofertilizer Potentials to Enhance Rice Growth

http://www.doi.org/10.26538/tjnpr/v7i4.20

Oluwole M. David, Ayobami C. Olawusi, Olusola A. Oluwole, Pius O. Adeola, Adebowale T. Odeyemi

2790-2795

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Quantification of Resistant starch, Non-Resistant Starch and Total Starch Content of Some Processed Foods Sold in Enugu Metropolis

http://www.doi.org/10.26538/tjnpr/v7i4.21

Eucharia N. Nwosu, Kingsley O. Omeje, Emmanuel C. Ezugwu, Sabinus O. O. Eze

2796-2800

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Production of Antiseptic Solutions Containing Extracts of Momordica Charantia L. and Azadirachta Indica A. Juss and Evaluation of its Antimicrobial Activity Against Microorganisms Associated with Folliculitis

http://www.doi.org/10.26538/tjnpr/v7i4.22

Adeola T. Ayilara, Tolulope O. Ajala, Taye R. Fasola

2801-2806

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Beta-D-glucan Polysaccharide Downregulates p53, and Prostate Specific Antigen Expression in Histological and Immunohistochemical study of Prostate Tumor Model

http://www.doi.org/10.26538/tjnpr/v7i4.23

Christie E. Fischer, Cyril A. Agbor

2807-2810

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The Synergistic Effect of Fluoxetine, Buspirone, and Sumatriptan with Sodium Valproate and Phenobarbitone in Experimental Models of Convulsion

http://www.doi.org/10.26538/tjnpr/v7i4.24

Abigail M. Akhigbemena, Enoch E. Akamua, Isreal O. Bolanle

2811-2816

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Antioxidant and Ameliorative Effects of Basella alba L. On Letrozole-Induced Polycystic Ovarian Syndrome in Rats

http://www.doi.org/10.26538/tjnpr/v7i4.25

Akingbolabo D. Ogunlakin, Mubo A. Sonibare

2817-2822

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Nutrients, the Bioavailability of Micronutrients and Antinutrient Composition of African Yam Bean Tubers

http://www.doi.org/10.26538/tjnpr/v7i4.26

Samuel O. Baiyeri, Chimaluka C. Samuel-Baiyeri

2823-2828

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Comparative Evaluation of the Phytochemical Contents, Antioxidant and some Biological Activities of Khaya grandifoliola Methanol and Ethyl Acetate Stem Bark, Root and leaf Extracts

http://www.doi.org/10.26538/tjnpr/v7i4.27

Irene A. Agbo, Buyiswa HlangothI, Jenske Didloff, Anna C. Hattingh, Luanne Venables, Sharlene Govender, Maryna van de Venter

2829-2836

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Reactive Oxygen Species Scavenging and Anti-Proliferative Potential of Veratric Acid: An in vitro Approach

http://www.doi.org/10.26538/tjnpr/v7i4.28

Shanmugam M Sivasankaran, Sahul H.S. Abdulla, Chakravarthy Elanchezhiyan, Manoharan Pethanasamy, Saravanan Surya, Azhamuthu Theerthu, Harish Krishnan

2837-2843

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