Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize

2017 ◽  
Vol 6 (1) ◽  
pp. 45-52
Author(s):  
Mobolade Akinbuluma ◽  
◽  
Francis Ewete ◽  
Emmanuel Yeye ◽  
◽  
...  
Keyword(s):  
Seed Extract ◽  
Sitophilus Zeamais ◽  
Piper Guineense

Methanolic Seed Extract of Piper Guineense Inhibits Fertility of Female Sprague Dawley Rats

2008 ◽  
Vol 22 (S2) ◽  
pp. 101-101
Author(s):  
Ibiyemi I Olatunji‐Bello ◽  
Funmileyi O Awobajo ◽  
Muibat A Ajiboye
Keyword(s):  
Seed Extract ◽  
Sprague Dawley ◽  
Piper Guineense ◽  
Sprague Dawley Rats

scholarly journals Efficacy of mixed powders of Piper guineense and Zingiber officinale as maize grain protectants against Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

2017 ◽  
Vol 10 (5) ◽  
pp. 1961 ◽  
Author(s):  
Daniel Chepo Chougourou ◽  
Yedomon Ange Bovys Zoclanclounon ◽  
Christophe Homevo Agossa ◽  
Sewanoude Elvire Doris Sakiti ◽  
Alponse Agbaka
Keyword(s):  
Zingiber Officinale ◽  
Sitophilus Zeamais ◽  
Piper Guineense ◽  
Grain Protectants ◽  
Maize Grain

scholarly journals Continuous Intake of High Doses of Piper guineense (Ashanti pepper) Aqueous Seed Extract Impairs Renal Function in Wistar Rats

2021 ◽  
Vol 18 (3) ◽  
pp. 585-590
Author(s):  
Somke Pamela Madueke ◽  
Princewill Ikechukwu Ugwu ◽  
Chinaza Amarachgui Uru ◽  
Adaobi Pearl Okeke ◽  
Okechukwu Matthew Omire-Oluedo ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Dose Group ◽  
Histological Study ◽  
Seed Extract ◽  
High Dose Group ◽  
High Dose ◽  
Piper Guineense ◽  
Group 2 ◽  
High Doses ◽  
Medium Dose

BACKGROUND: Piper guineense seed is a well known spice consumed in many parts of West Africa as a result of its nutritional and medicinal properties. METHODS: Twenty Wistar rats were divided into four groups of five per group. The phytochemical analyses was done; different concentration of aqueous seed extract of Piper guineense was administered for 21 days to three experimental groups, Group 2 (25 mg/kg), Group 3 (50 mg/kg), Group 4 (100 mg/kg), while group 1 were given only rat feed and water. RESULTS: The investigation revealed that in low and medium dose groups, creatinine (62.3±7.3 to 51.1±4.5 and 51.1±8.1 respectively) and urea (6.6±1.3 to 5.2±0.8 and 4.8±1.0) levels decreased significantly while in high dose group, creatinine (62.3±7.3 to 66.9±11.0) and urea (6.6±1.3 to 7.0±0.8) increased significantly. There was a dose dependent increase in the serum electrolyte (sodium, potassium, chlorine and bicarbonate). Only bicarbonate (19.1±0.8 to 24.3±1.3) and chloride (102.4±3.8 to 107.0±1.6) had significant increase in their values. The histological study showed that at a low (25mg/kg) and medium dose (50mg/kg) of aqueous seed extract of Piper guineense the normal cyto-architecture of the kidney was maintained while in high dose group (100mg/kg) normal cyto-architecture of the kidney was distorted. CONCLUSION: The result obtained suggests that Piper guineense seed may not be harmful at a moderate dose; but high doses could be toxic. Caution should be taken on the quantity of Piper guineense seed consumed.

Amide alkaloids from Piper guineense and its crude extract as protectants against Sitophilus zeamais

2021 ◽  
Author(s):  
Mobolade Dele Akinbuluma ◽  
Francis Kolawole Ewete ◽  
Ibrahim Adebayo Oladosu
Keyword(s):  
Crude Extract ◽  
Sitophilus Zeamais ◽  
Piper Guineense

scholarly journals Potential of seed dusts of Jatropha curcas L., Thevetia peruviana (Pers.), and Piper guineense Schumach. against the maize weevil, Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae) in storage of corn grain

2017 ◽  
Vol 86 (3) ◽  
pp. 237-250 ◽  
Author(s):  
Oninye M. Ukpai ◽  
Briandavis N. Ibediungha ◽  
Collins N. Ehisianya
Keyword(s):  
Jatropha Curcas ◽  
Total Mortality ◽  
Black Pepper ◽  
Sitophilus Zeamais ◽  
Laboratory Evaluation ◽  
Phytochemical Analysis ◽  
Ambient Conditions ◽  
Maize Weevil ◽  
Piper Guineense ◽  
Thevetia Peruviana

Abstract A laboratory evaluation was carried out to determine the efficacy and phytochemical composition of powdered seeds of Physic nut Jatropha curcas, Yellow oleander Thevetia peruviana and West African black pepper Piper guineense at different dosages (2.5, 5.0, 7.5 and 10.0 g) for the management of Sitophilus zeamais. Treatments were mixed with 50 g of maize and infested with 10 adult S. zeamais in 200 ml air-tight glass vials and kept under ambient conditions (25-30°C and 70-90 RH) for a period of 28 days in August 2015. The trial was laid out in a completely randomized design in four replicates. Results from data analyses showed that treated maize grains in storage recorded significantly (P < 0.05) higher mean mortality levels of adult S. zeamais than the untreated controls. However, there were no significant differences in mean mortality of the weevil at 7, 14, 21 and 28 DAT, except on those stored only for 1 DAT. Batches treated with higher doses (10.0, 7.5, 5.0 g) suffered a higher total mortality of adult S. zeamais; this was significantly (P < 0.05) higher compared with treatments using smaller dosages (2.5 and 0.0 g). Phytochemical analysis of treatments revealed high levels of alkaloids, tannins and phenols in all the plant extracts. The flavonoid contents were also high in Piper guineense and Permethrin, but lower in Jatropha curcas and Thevetia peruviana. These compounds are known to possess insecticidal properties that may have been responsible for the mortality of Sitophilus zeamais.

Evaluation of the insecticidal activity of Moringa oleifera seed extract and lectin (WSMoL) against Sitophilus zeamais

2020 ◽  
Vol 87 ◽  
pp. 101615 ◽  
Author(s):  
Ana Patrícia Silva de Oliveira ◽  
Afonso Cordeiro Agra-Neto ◽  
Emmanuel Viana Pontual ◽  
Thâmarah de Albuquerque Lima ◽  
Kamila Cardoso Vera Cruz ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Moringa Oleifera ◽  
Seed Extract ◽  
Sitophilus Zeamais ◽  
Moringa Oleifera Seed

scholarly journals <em>In vitro</em> antioxidants, membrane stability, thrombolytic and erythrocytes protective activities of <em>Piper guineense</em> seed extract

2021 ◽  
Author(s):  
Habibu Tijjani ◽  
Aishatu Bobbo ◽  
Wilston Maduchem ◽  
Fatima Abdullahi ◽  
Aliyu Omar ◽  
...  
Keyword(s):  
Seed Extract ◽  
Membrane Stability ◽  
Piper Guineense
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