Xylopia aethiopica

About: Xylopia aethiopica is a research topic. Over the lifetime, 347 publications have been published within this topic receiving 5511 citations.

In vitro Anti-infective and Antioxidant activity of Xylopia aethiopica [Dun.] A. Rich: A comparison of the fruits and leaves extracts

Abstract: Xylopia aethiopica (Annonaceae) is a plant widely used in Africa for both culinary and medicinal purposes. This study aims at evaluating by comparison the anti-infective and antioxidant activities of X. aethiopica fruit and leaves. Ethanol extracts of the leaves and fruits of X. aethiopica were evaluated for antimicrobial, anthelmintic and antioxidant activities. Antimicrobial activity was evaluated by determining the minimum inhibitory concentrations (MIC) against clinical strains of selected microorganisms. Anthelmintic activity was evaluated by determining the effects of the extracts on the paralytic and death times of Pheretima posthuma. Antioxidant activity was determine by the DPPH free radical scavenging method. Results revealed that the extracts from the fruits showed better antimicrobial and antioxidant activities than that of the leaves as well as a concentration dependent anthelmintic activity. This could justify the extensive use of the fruits than the leaves in folkloric medicine.

Field Activity of Three Mixture Levels of Plant Extract Formulations for the Management of Post-Flowering Insect Pests of Cowpea, Vigna unguiculata (L.) Walp–The Flower Thrips, Megalurothrips sjostedti (Trybom)

Abstract: Insecticidal attributes of aqueous extracts of West African black pepper (Piper guineense Schum and Thonn) seeds mixed at three proportional levels (10:10, 10:20, and 20:10% w/v) with neem (Azadirachta indica A. Juss) seeds, African pepper (Xylopia aethiopica (Dunal) A. Rich.) pods, garlic (Allium sativum L.) bulbs and clove (Syzigium aromaticum (L.) Merr. & Perr.) inflorescence, were evaluated against the flower thrips, Megalurothrips sjostedti Tryb. in two-year field trials. Compared with the other mixture treatments, the mixtures of West African black pepper with garlic bulb at 10:10% and 20:10% w/v were superior (P < 0.05) in reducing the numbers of M. sjostedti in cowpea flowers during the periods. Pod density was significantly (P < 0.05) higher at these mixture proportions compared with the other P. guineense mixtures and was comparable to cypermethrin + dimethoate used as synthetic check. All the plant extracts at different mixture proportions were superior to the untreated control in all ...

Bioactive Constituents of Methanol Extract of Xylopia aethiopica (UDA) Fruits from Nsukka, Enugu State, Nigeria

Abstract: The bioactive compounds in methanol extract of Xylopia aethiopica fruits were determined using a combination of gas chromatography and mass spectrometry (GC-MS). The compound identification was based on the molecular structure, molecular mass and calculated fragments. Interpretation on mass spectrum of GC-MS analyzer (Hewlett Packard GC-MS system) was done using the database of National Institute Standard and Technology (NIST). The results showed different peaks representing the presence of about 58 bioactive compounds which are mainly carboxylic acids, esters, phenolic compounds and fatty acids. The most abundant bioactive compounds detected were 2,4,6-octatriene (2.74%), cyclohexanemethanol (2.57%), kaurene (3.59%), 9,12-octadecadienoic acid (5.63%), 1,6-cyclodecadiene (10.81%), terpineol (3.22%), cyclohexene (3.32%), copaene (3.04%), 1,6-cyclodecadiene (5.53%), 1-hexadecyne (5.63%) and silane (4.63%). The presence of these bioactive components suggests that the extract is of great pharmaceutical value.

The efficacy of xylopia aethiopica and piper guineense seeds powder on sitophilus oryzae mortality

Abstract: Efficacy of Xylopia aethiopica and Piper guineense seeds powders in the control of Sitophilus oryzae was investigated. In the laboratory experiment, the Xylopia aethiopica and Piper guineense seeds powders were applied at rates of 0gm (control), 10gm, 25gm, 50gm, 100gm kg -1 respectively for the control of Sitophilus oryzae. Xylopia aethiopica and Piper guineense seeds powders at the rates of 100gm kg -1 respectively were found to having effective potentials in the control of Sitophilus oryzae. Piper guineense seed powder from the experiments conducted were generally more efficacious as having the potentials in the control of insect pests as seen in tables 1-3 of this study.

Impairments in testicular function indices in male wistar rats: a possible mechanism for infertility induction by Xylopia aethiopica fruit extract -

Abstract: Background: The accumulating evidence about alterations in male fertility necessitates the need to screen more medicinal plants for their effect on male reproductive functions. This study is aimed at evaluating the effects of fruit extract of Xylopia aethiopica on testicular functions in males using wistar rats as models. Methods: Forty eight adult male rats, randomly divided into four groups of 12 each, were used for the study. Group 1 (control), while groups 2, 3 and 4 (test groups). Daily oral doses of 0.5, 2.0 and 10.0 mg/kg b.w. of hydro-methanol extract were given to the test groups for 30 days followed by 30 days withdrawal. From each group, 6 animals were sacrificed on days 31 and 61 of the study and samples collected: Testes and epididymis were each weighed; blood was assayed for serum testosterone; testes processed for tissue biochemical studies. Results: Results show significant (P <0.05) reductions in the weight of reproductive organs, serum testosterone; testicular glycogen, cholesterol, protein and malondialdehyde; while testicular superoxide dismutaase increased. Conclusions: It was concluded that Xylopia aethiopica impairs testicular functions in rats and therefore fertility in males.