Dec 28, 2018
African pear / Dacryodes edulis
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African pear / Dacryodes edulis
Essential oils exhibit biostatic and biocidal activities against microorganism due to antimicrobial properties present in them. The seeds oil of African pear (Dacrodes edulis) was studied against fungi isolated from stored grains. The oil was extracted with soxhlet extractor and antifungal activity was determined using standard method Molecular identification of the fungus showed similar homology with previous isolate. Oil showed static effect as the level of activity decreased as the number of days increased (25.33±0.88,2/3days; 18.00±0.57, 4/5days and 0.00 7th day). Physiochemical and phytochemical parameters showed that D. edulis seed oil has high quality as perioxide value (12.40±0.16mEq/kg) and acid value (1.99±1.08(mgKOH/g)) were within the recommended values of oils. Saponification values were high (190-206mgKOH/g) though iodine value was low. Phytochemical result of D. edulis seed powder included presence of saponins, terpenoids, cardiac glycosides, alkaloids and other compounds. Dacrydes edulis seed oils could be used as biopreservative on stored grains since it was potent against fungi that spoil stored grains. Further phytochemical analysis could reveal the compounds within oil that had the antifungal property.
Essential oils exhibit biostatic and biocidal activities against microorganism due to antimicrobial properties present in them. The seeds oil of African pear (Dacrodes edulis) was studied against fungi isolated from stored grains. The oil was extracted with soxhlet extractor and antifungal activity was determined using standard method Molecular identification of the fungus showed similar homology with previous isolate. Oil showed static effect as the level of activity decreased as the number of days increased (25.33±0.88,2/3days; 18.00±0.57, 4/5days and 0.00 7th day). Physiochemical and phytochemical parameters showed that D. edulis seed oil has high quality as perioxide value (12.40±0.16mEq/kg) and acid value (1.99±1.08(mgKOH/g)) were within the recommended values of oils. Saponification values were high (190-206mgKOH/g) though iodine value was low. Phytochemical result of D. edulis seed powder included presence of saponins, terpenoids, cardiac glycosides, alkaloids and other compounds. Dacrydes edulis seed oils could be used as biopreservative on stored grains since it was potent against fungi that spoil stored grains. Further phytochemical analysis could reveal the compounds within oil that had the antifungal property.
Medicinal Properties of Dacryodes edulis against Selected Clinical Bacterial Isolates | Chapter 04 | Current Research in Agriculture and Horticulture Vol. 1
The medicinal properties of Dacryodes edulis was investigated to determine the antimicrobial properties of the collected raw D. edulis pulp and seed extracts on some medically important human pathogens. The research was investigated against the selected human pathogens using standard microbiological and biochemical procedures. The D. edulis samples were harvested aseptically between the periods of April to June 2016 from its tree located at IBB way, Calabar Municipality, Nigeria. The aqueous and ethanolic extracts of the seed and pulp at varying concentrations of 1 g/10 ml, 2 g/10 ml, 4 g/10 ml, 5 g/10 ml was tested against some selected human pathogens such as Staphylococcus aureus, Klebsiella pneumonia, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa and Proteus vulgaris. The antimicrobial susceptibility results of the ethanol extracts of D. edulis seed showed marginally higher zones of inhibition to the clinical bacterial isolates tested than the ethanol extract of the pulp tested against the same clinical isolates. The organisms were resistant to the aqueous extracts of both the pulp and seed. The seed ethanol extracts showed a higher zone of inhibition of 21 mm against K. pneumoniae and 18 mm against P. vulgaris as compared to 18 mm as against K. pneumoniae and 17 mm against P. vulgaris showed by Gentamycin used as standard antibiotic control. The result of these has shown that D. edulis could be of immense importance in our nation’s young pharmaceutical industry for the development of new chemotherapeutic agent to address unmet therapeutic needs.
Author(s) Details
Prof. J. A. Lennox Department of Microbiology, Faculty of Biological Sciences, University of Calabar, P.M.B. 1115, Calabar, Nigeria.
Dr. B. E. Agbo Department of Microbiology, Faculty of Biological Sciences, University of Calabar, P.M.B. 1115, Calabar, Nigeria.
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ANALYSIS OF BUSH PEAR AND ITS OIL
ANALYSIS OF BUSH PEAR AND ITS OIL
ANALYSIS OF BUSH PEAR AND ITS OIL
The research project studies the analysis of pear and its oil. The mesocarp from edible African pear “Dacryodes Edulis” were evaluated for their oil yield. The pulp from this pear were oven dried at 100oC-105oC to a moisture content level of 29%.The mesocarp was subjected to proximate analysis to determine the percentage of the moisture, ash, fat, crude fibre,…
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Analysing fruit shape in safou (Dacryodes edulis) fruit by using aspect ratio Alain Serges Ondo-Azi, Crépin Ella Missang, Pamphile Nguema N, Thomas Silou Key words: Dacryodes edulis, fruits characteristics, aspect ratio, shape. Abstract Fruit shape is one of the most important quality criteria for evaluation by customer preference. Aspect ratio (A.R.) was used as physical parameter to perform the choice of ratios for fruits shape determination. This study proposes a relationship between fruit shape and morphological parameters in bush butter fruits (Dacryodes edulis) collected on 35 bush butter trees. The results show that bush butter fruits present some shapes. To describe fruit shapes the use of morphological characteristics is possible. So, the unique parameter used in our study was A.R., width over length. All of 35 trees analyzed were regrouped in three types; those types were assimilated at shapes in bush butter fruit designated by elliptical, spheroidal and obovate shape. On fruit shapes, the analysis of variance shows that the mean values of aspect ratio are significantly different shape as shape. So, it indicates great distinction in the three fruit shapes presented. The distance calculus proposes also a bush butter categorization model based on A.R. A model to describe fruits source of the new trees is proposed. Read Full Article: Volume 3, Number 6, June 2013 – IJAAR Published on: International Journal of Agronomy and Agricultural Research (IJAAR)
Phipps to Host Glasshouse Happy Hours for Young Professionals
Phipps to Host Glasshouse Happy Hours for Young Professionals
Pittsburgh, Pa.—On April 9, from 6 – 8 p.m., Phipps Conservatory and Botanical Gardens, in partnership with the Pittsburgh Urban Magnet Project (PUMP), will host Glasshouse Happy Hours, a 21 + event for young professionals, featuring specialty drinks, inspired bites and dynamic special guests. This event is the second of three socials held throughout the year, each with a different theme and…
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Phipps Spring Flower Show Showers Bring a Bounty of Flowers
Phipps Spring Flower Show Showers Bring a Bounty of Flowers
Pittsburgh, Pa. — This year Phipps Conservatory and Botanical Gardens is taking the old adage “April showers bring May flowers” to new heights as the theme of Spring Flower Show 2015. After another cold Pittsburgh winter, the exhibit, opening on March 14, will, in fact, be the perfect reward for the senses as it celebrates rain and its important role in the natural world with a bevy of bright…
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