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Forage and seed yield of velvet bean (Mucuna pruriens (L.)) as affected by sowing date and plant spacing under irrigated condition, Gezira state, Sudan

100%
Elagbani N. H. M., Gangi A. S., Sulieman A. M., Babiker S. A. E.
World News of Natural Sciences
|
2023
|
vol. 46
1-13
EN
Velvet bean (Mucuna pruriens (L.)) can be used as food, feed (forage and seeds) and environmental services. Also, the plant can be a cover crop and green manure. Experiments was carried out during the seasons of 2017/18 and 2018/19 at the Experimental Farm of the Faculty of Agricultural Sciences, University of Gezira. Experiment aimed to evaluate the effect of three sowing date (15th of September, 15th of December and 15th of March) and three plant spacing (15, 30 and 45 cm) on forage and seed yield of velvet bean. The treatments were arranged in split –plot design, where sowing date assigned as main plot and plant spacing as sub-plot with four replications. Results showed that the effect of sowing date, plant spacing and their interaction on fresh forage yield, number of pods per plant, number of seeds per pod and seed yield was highly significantly different. Plant spacing 30 cm and 15th of September sowing date produced the highest fresh forage and seed yield (21.97 and 3.85 ton ha-1), respectively. Based on the experimental results obtained from this study it could be recommended that the best combination for forage production and seed yield during different seasons is 15th of September sowing date and 30 cm plant spacing.
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Extraction and optimization of Mucuna pruriens for dyeing of leather

88%
Sundari N.
Polish Journal of Chemical Technology
|
2015
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vol. 17
|
issue 2
57-63
EN
The present study reports on the leaching of natural pigment from Mucuna pruriens for dyeing of chrome tanned leather samples. The experiments were performed at temperature (30-70°C), time (30-90 min), feed to solvent ratio (1:3-1:7) and particle size (0.25-0.75 mm) using ethanol as solvent. The influence of process variables on percentage yield has been studied and the conditions were optimized using Box-Behnken design. The optimized conditions for intensified extraction was found to occur at a temperature of 60°C, extraction time of 1 hr, for a feed to solvent ratio of 1:5 and 0.75 mm particle size. The % yield under optimized conditions was found to be 47%. The extraction results were found to agree well with the statistical model (R2 = 0.9740). The colouring ability of extracted dye has been tested on wet blue goat leathers. The dyed leather exhibited a better colour value, strength and fastness properties as inferred from reflectance and visual assessment tests.
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Mucuna pruriens-seed extract stimulating immune system in Litopenaeus vannamei against Vibrio harveyi

88%
Shanmugavel G., Krishnamoorthy G.
World News of Natural Sciences
|
2021
|
vol. 39
95-112
EN
Objective: To evaluate the immunostimulant (ISt) role of Mucuna pruriens-seed (Mp-seed) enriched with Artemia (Ar) in Litopenaeus vannamei (L. vannamei) infected by Vibrio harveyi (V. harveyi). Method: Fifteen shrimp (30±5g) were stocked per 250 L tank in 3 replicates and fed twice daily with Ar enriched with Mp-seed methanolic extracts at 100 ppm and 200 ppm for 21 days. Infected L. vannamei shows altered immunoparameter (IPM) and antioxidant enzyme status due to the V. harveyi infection induced stress. Results: Significantly increased (p<0.05) total haemocyte count, respiratory burst, phenoloxidase and superoxide dismutase activities were observed in shrimp fed with Mp enriched Ar diets compared to infected group. Supplementation of Mp enriched Ar in diet could enhance the immunity of shrimp against V. harveyi infection by reverses the antioxidant level. The histology of hepatopancreas (HPC) also shows Mp-fed groups has restores the normal structure. Conclusion: The study demonstrated that Mp enriched Ar in diet have a potentially role in ISt and an effective antioxidant by regulating infectious stress against vibriosis.
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