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 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

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

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.

Effects of Andrographis paniculata crude extract and Andrographolide on hepatic cytochrome P450 mRNA expression and monooxygenase activities

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
D Pekthong ◽  
N Blanchard ◽  
C Abadie ◽  
A Bonet ◽  
B Heyd ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Mrna Expression ◽  
Crude Extract ◽  
Andrographis Paniculata ◽  
Hepatic Cytochrome

The inhibitory effect of the crude extract of Centella asiatica on α-amylase activity

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
N Supkamonseni ◽  
A Thinkratok ◽  
R Srisawat
Keyword(s):  
Crude Extract ◽  
Amylase Activity ◽  
Centella Asiatica ◽  
Inhibitory Effect

Genotoxicity evaluation in vitro by comet assay of compound and crude extract obtained from P. Pubescens Benth.

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
VHS Souza ◽  
A Paula OHohne ◽  
R Grando ◽  
N de Cassia de Almeida Queiroz ◽  
GM Pastore ◽  
...  
Keyword(s):  
Comet Assay ◽  
Crude Extract

Phytochemical screening for identification of bioactive compounds of Lantana camara Linn. (Verbenaceae) responsible for larvicidal action against Aedes triseriatus Say, 1823 (Diptera : Culicidae)

ENTOMON ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 117-126
Author(s):  
Rhitayu Chakraborti ◽  
Probir Kumar Bandyopadhyay
Keyword(s):  
Ethyl Acetate ◽  
Bioactive Compounds ◽  
Active Ingredient ◽  
Crude Extract ◽  
Ethyl Acetate Extract ◽  
Lantana Camara ◽  
Mosquito Larvae ◽  
Aedes Triseriatus ◽  
Phytochemical Screening ◽  
Lc50 Value

Study to assess the larvicidal property of Lantana camara leaves against Aedes triseriatus larvae found that the ethyl acetate extract had profound larvicidal action with the crude extract having a LC50 value of 409.831ppm. GC-MS analysis of the ethyl acetate extract confirmed the presence of twenty-one compounds out of which beta-caryophyllene covered the highest percentage of the chromatogram area. Further tests with beta-caryophyllene against the mosquito larvae proved it to be the active ingredient of L. Camara with a LC50 value of 104.243ppm.

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