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Gastrointestinal Ulcers Treatment: plants and Recipes Used by Herbalists of Abomey-Calavi and Cotonou Districts, Southern Benin

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American Journal of plant Sciences 2024年第9期15卷 699-725页

作者： Brice Dangnon Durand Dah-Nouvlessounon Sêmassa Mohamed Ismaël Hoteyi Abdelmalick Abdelrahman Moubachar Abdelkerim Mahamat Nicodème Worou Chabi Sina Haziz Farid Baba-Moussa Adolphe Adjanohoun Lamine Baba-Moussa Laboratory of Biology and Molecular Typing in Microbiology Department of Biochemistry and Cell Biology Faculty of Science and Technology University of Abomey-Calavi Cotonou Benin Unit of Biochemistry and Molecular Markers in Nutrition Laboratory of Research in Applied Biology Polytechnic School of Abomey-Calavi University of Abomey-Calavi Cotonou Benin Laboratoire de Microbiologie et de Technologie Alimentaire Faculty of Science and Technology University of Abomey-Calavi Cotonou Benin Institut National des Recherches Agricoles du Bnin Cotonou Benin

This study set out to identify plants and recipes used by herbalists in the municipalities of Abomey-Calavi and Cotonou to treat gastrointestinal ulcers and to characterize the distribution of their knowledge. An ethno-pharmacological survey was carried out in which informants who agreed freely were interviewed using a semi-structured questionnaire. A total of 85 herbalists were surveyed. The data were processed with Microsoft Excel to calculate the relative frequencies of citation of the various species mentioned by the herbalists and various indices including Simpson’s Index were adapted to test the distribution of their knowledge. Multiple regression and correspondence analysis were performed using R studio. Our results revealed that the Dendi, Ifè and Mina, all equitable in their knowledge of anti-ulcer plants, are likely to know more than the other ethnic groups. On the other hand, respondents practicing Islam are more likely to know many antiulcer plants than those practicing Vodoun and Christianity. This constant distribution of knowledge of anti-ulcer plants among the Dendi, Ifè and Mina, three different ethnic groups seems normal and attests to the fusion between these different ethnic groups in view of this knowledge. A total of 70 anti-ulcer recipes, made from 71 species of medicinal plants or non-floristic resources were recorded. Vitellaria paradoxa, Parkia biglobosa and Ocimum gratissimum were the top 03 most frequently cited in descending order of frequency. All the species cited are grouped into 44 botanical families among which the Fabaceae, Lamiaceae and Sapotaceae were strongly represented. Benin’s flora abounds in a diversity of medicinal plant species known to herbalists in Abomey-Calavi and Cotonou for the treatment of gastrointestinal ulcers. The results of this study constitute a good archive for the selection of plant species for in-depth studies with a view to formulating improved traditional medicines for gastrointestinal ulcers.

关键词： Gastrointestinal Ulcer Ethnomedicine Herbalist Nature plant material

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Adsorption behavior of ammonium by a bioadsorbent-Boston ivy leaf powder

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Journal of Environmental Sciences 2010年第10期22卷 1513-1518页

作者： Haiwei Liu Yuanhua Dong Haiyun Wang Yun Liu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 China. Tobacco Research Institute Chinese Academy of Agricultural Sciences Qingdao 266101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

The adsorption behaviors of ammonium ions from aqueous solution by a novel bioadsorbent, the Boston ivy （Parthenocissus tricuspidata） leaf powder （BPTL） were investigated. The SEM images and FT-IR spectra were used to characterize BPTL. The mathematical models were used to analyze the adsorption kinetics and isotherms. The optimum pH range for ammonium adsorption by BPTL was found to be 5-10. The adsorption reached equilibrium at 14 b.r, and the kinetic data were well fitted by the Logistic model. The intraparticle diffusion was the main rate-controlling step of the adsorption process. The high temperature was favorable to the ammonium adsorption by BPTL, indicating that the adsorption was endothermic. The adsorption equilibrium fitted well to both the Langmuir model and Freundlich model, and the maximum monolayer adsorption capacities calculated from Langmuir model were 3.37, 5.28 and 6.59 mg N/g at 15, 25 and 35~C, respectively, which were comparable to those by reported minerals. Both the separation factor （RL） from the Langmuir model and Freundiich exponent （n） suggested that the ammonium adsorption by BPTL was favorable. Therefore, the Boston ivy leaf powder could be considered a novel bioadsorbent for ammonium removal from aqueous solution.

关键词： ammonium ion bioadsorbent isotherm kinetics plant material

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SPME as a green sample-preparation technique for the monitoring of phytocannabinoids and endocannabinoids in complex matrices

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Journal of Pharmaceutical Analysis 2023年第10期13卷 1117-1134页

作者： Katarzyna Wozniczka PawełKonieczynski Alina Plenis Tomasz Ba˛czek Anna Roszkowska Department of Pharmaceutical Chemistry Medical University of GdanskGdanskPoland Department of Analytical Chemistry Medical University of GdanskGdanskPoland

The endocannabinoid system(ECS),particularly its signaling pathways and ligands,has garnered considerable interest in recent *** with clinical work investigating the ECS’functions,including its role in the development of neurological and inflammatory conditions,much research has focused on developing analytical protocols enabling the precise monitoring of the levels and metabolism of the most potent ECS ligands:exogenous phytocannabinoids(PCs)and endogenous cannabinoids(endocannabinoids,ECs).Solid-phase microextraction(SPME)is an advanced,non-exhaustive sample-preparation technique that facilitates the precise and efficient isolation of trace amounts of analytes,thus making it appealing for the analysis of PCs and ECs in complex matrices of plant and animal/human *** this paper,we review recent forensic medicine and toxicological studies wherein SPME has been applied to monitor levels of PCs and ECs in complex matrices,determine their effects on organism physiology,and assess their role in the development of several diseases.

关键词： Phytocannabinoids Endocannabinoids Solid-phase microextraction plant material Biological matrix

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