Xylopia aethiopica

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

Nutritional Qualities of Three Medicinal Plant Parts (Xylopia aethiopica, Blighia sapida and Parinari polyandra) commonly used by Pregnant Women in the Western Part of Nigeria

Abstract: The nutritional potentials of three medicinal plant parts used by pregnant women in the western part of Nigeria Parinari polyandra, Blighia sapida and Xylopia aethiopica were evaluated through their proximate compositions as well as percentage mineral elements composition. Blighia sapida was high in crude fibre (44.09±2.20%) compared with Parinari polyandra and Xylopia aethiopica that were 4.21±1.10% and 12.14±0.70% respectively. Moisture contents of Xylopia aethiopica and Blighia sapida were 16.04±1.25% and 10.17±2.60% respectively while that of Parinari polyandra was 30.65±5.02%. The total ash contents of Parinari polyandra, Blighia sapida and Xylopia aethiopica were 2.53±1.20%, 3.66±1.20% and 4.37±0.85% respectively. The total fat of Xylopia aethiopica, Blighia sapida and Parinari polyandra were 9.55±2.10%, 1.25±0.20% and 0.53±0.15% respectively while the total protein of Blighia sapida, Xylopia aethiopica and Parinari polyandra were 2.1±0.25%, 2.1±0.20% and 7.09±0.20% respectively. The total carbohydrate of Xylopia aethiopica was 55.80±4.26%, that of Parinari polyandra was 54.27±3.20% and that of Blighia sapida was 39.45±2.20%. Xylopia aethiopica can be a good source of magnesium (2.236±0.095), phosphorus (0.620±0.04) and potassium (0.510±0.04) as the amount of these mineral elements were higher than that of the other plant parts with the exception of Parinari polyandra having 0.690±0.11% phosphorus. Blighia sapida is also a good source of phosphorus (0.400±0.20), magnesium (0.430±0.20) and calcium (0.348±0.15). Other mineral elements detected in reasonable amounts were calcium, zinc and sodium. Further tests revealed that heavy metals such as lead, chromium and cadmium were not detected. The results of this research indicated that the three plants parts have nutritional qualities that could provide the users with additional nutrients.

Isolation of bioactive and other oxoaporphine alkaloids from two annonaceous plants, Xylopia aethiopica and Miliusa cf. banacea

Abstract: The oxoaporphine alkaloids oxophoebine [1] and liriodenine [2] have been isolated from Xylopia aethiopica (Annonaceae). Both showed selective toxicity against DNA repair and recombination deficient mutants of the yeast Saccharomyces cerevisae. Three related but inactive compounds, oxoglaucine [3], O-methylmoschatoline [4], and lysicamine [5], were also isolated from this plant. Selective toxicity was also observed for 10-methoxyliriodenine (lauterine) [6] and 10-hydroxyliriodenine [7], two oxoaporphine alkaloids isolated from Miliusa cf. banacea (Annonaceae). The structure of 10-hydroxyliriodenine [7], a novel oxoaporphine, was determined by spectroscopic methods and chemical conversion to compound 6. The role of the bioactive oxoaporphine alkaloids as DNA topoisomerase inhibitors is discussed.

Evaluation of the potential of some local spices as stored grain protectants against the maize weevil Sitophilus zeamais mots (Coleoptera: Curculionidae).

Abstract: Five local spices ( Piper guineense, Allium sativum, Afromomum melequata, Xylopia aethiopica and Tetrapleura tetraptera ) were evaluated in the laboratory for their ability to protect stored maize against infestation by S. zeamais . Ground products of the spices were applied as direct admixtures at two concentration levels of 1% and 5% to assess for mortality, progeny emergence, damage and repellency. At 1% and 5% concentration, P. guineense caused significant (P P. guineensewere strongly repellent to the weevils while the other three spices showed moderate repellent activity. There was a significant (P P. guineense, A. sativum and T. tetrapleura . Progeny production was also significantly (P P. guineense than the other four spices and the control. The possible protectant potentials of the five spices are discussed. Journal of Applied Sciences and Environmental Management Vol. 9(1) 2005: 165-168

High incidence of Aspergillus flavus and aflatoxins in stored groundnut in Ghana and the use of a microbial assay to assess the inhibitory effects of plant extracts on aflatoxin synthesis.

Abstract: Groundnut samples from 21 selected markets in the 10 regions of Ghana yielded high levels of the aflatoxigenic fungus Aspergillus flavus on half-strength potato dextrose agar. The fungus was associated with 31.7 and 12.8%, respectively, of all damaged and undamaged kernels assayed. Only 0.24% of total kernels assayed yielded A. parasiticus. Other fungi detected from total kernels assayed were A. niger (34%), A. candidus (1.45%), A. tamarii (3.93%), A. ochraceous (5.26%), Fusarium spp. (1.7%) Penicillium spp. (5.19%), a Mucor sp. (2.3%), a Trichoderma sp. (0.2%), Rhizopus stolonifer (12%) and certain unidentifiable fungi (11.72%). Total aflatoxin levels ranging from 5.7 to 22, 168 ppb were identified with damaged kernel samples. The mycotoxin was not detected in 50% of undamaged kernel samples tested and very low levels mostly ranging from 0.1 to 12.2 ppb were associated with the undamaged samples that tested positive for aflatoxins. In a novel in vitro microbial assay to determine the effectiveness of certain plant extracts against aflatoxin synthesis, extracts from Xylopia aethiopica, Monodera myristica, Cinnamomum verum and Piper nigrum permitted fungal growth in 1.5% potato-dextrose broth while completely suppressing NOR formation. These extracts, however, could not suppress NOR formation in a yeast extract sucrose medium.