Studies on Proximate Composition, Phytochemical and Antimicrobial Screening of the Methanol and Acetone Extracts of Vitex doniana Fruit Pulp

Author(s):  
A. E. Aiwonegbe ◽  
J. U. Iyasele ◽  
N. O. Izevbuwa
2015 ◽  
Vol 45 (6) ◽  
pp. 920-929
Author(s):  
John Barimah ◽  
Damian Laryea ◽  
Ugett Naa Korkoi Okine

Purpose – This paper aims to assess the potential of date fruit powder as a refined sugar replacer in rock buns to help promote and diversify the utilization of date fruit. Design/methodology/approach – Date fruit pulp was sun dried, milled into powder, sieved and its proximate composition determined. Refined sugar in rock buns was replaced with date fruit powder at 0, 50, 80 and 100 per cent levels. The samples were then subjected to proximate, mineral and sensory evaluation. Findings – Date fruit powder had 1.47 per cent crude fiber and was high in carbohydrate (82.15 per cent). Carbohydrate content of samples decreased (48.55-29.72 per cent), while crude protein (6.78-9.97 per cent), crude fat (22.74-33.66 per cent) and crude fiber (0-0.49 per cent) contents increased with an increasing substitution of date powder. Of all, 0 and 50 per cent substituted rock bun samples were the most preferred. Date powder significantly (p < 0.05) increased the potassium (0.55-1.57 per cent), calcium (0.08-1.08 per cent) and iron (0.53-0.625 per cent) contents of the samples. Originality/value – This research assessed the potential of date fruit powder as a replacer of refined sugar in rock buns, as it remains an underutilized commodity in Ghana. Replacing 50 per cent of refined sugar improved the nutrient composition of rock buns, thereby making date fruit powder a nutritious sugar replacer which could be used in pastry products. This when adopted would diversify the utilization of date fruits while providing good nutrition to consumers.


Author(s):  
MA Vunchi ◽  
AN Umar ◽  
MA King ◽  
AA Liman ◽  
G Jeremiah ◽  
...  

Author(s):  
Y. Datti ◽  
M. Ibrahim ◽  
I. Salihu ◽  
M. Abdulhadi ◽  
S. M. Muhammad ◽  
...  

The fruits of the doum palm tree, Hyphaene thebaica are one of the oldest relish fruit. This study analyzed the chemical composition (both proximate and the mineral contents) of this plant, as well as its antioxidant property. The mineral content was determined by atomic absorption spectrophotometry, while the proximate and phytochemical analyses were carried out using standard procedures at Bayero University, Kano. The fruit were found to contain some minerals including K (3366.21 mg/100 g), Ca (292.04 mg/100 g), Na (212.27 mg/100 g), Mg (177.14 mg/100 g), Fe (4.86 mg/100 g), Mn (0.83 mg/100 g), Zn (0.68 mg/100 g), Cu (0.40 mg/100 g), Ni (0.32 mg/100 g) and Co (0.12 mg/100 g). The proximate composition of the doum palm fruit pulp reveals protein (2.86%), lipid (0.92%), ash content (6.24%), crude fiber (12.87%), moisture content (8.64%) and carbohydrate 68.47%. The DPPH radical scavenging efficacy of the ethanol extract of the fruit of the doum palm tree was analyzed at different concentrations of the extract. At concentration 0.0625 mg/mL, 0.125 mg/mL, 0.250 mg/mL and 0.500 mg/mL the extract showed inhibitory activity of 31%, 61%, 72% and 81% respectively. Thus the doum palm fruit pulp extract possess potential antioxidant properties.


2019 ◽  
pp. 1-11
Author(s):  
T. A. Dendegh ◽  
M. Ukeyima ◽  
R. A. Dendegh

Aim: To evaluate the proximate composition, functional and sensory properties of a complementary food from pearl millet, soy flour and baobab fruit pulp composite flours. Study Design: A complementary food was produced from Pearl millet, soy flour and baobab fruit pulp powder (BFP) of various proportions (10, 20, 25 and 30%). Proximate (protein, ash, moisture, fibre, fat, carbohydrate and energy value) composition, functional (Bulk density, gelation capacity, swelling index, water absorption capacity and oil absorption capacity) properties and sensory (appearance, flavour, texture and overall acceptability) attributes were determined. Results: The results of proximate composition showed that Moisture content ranged from 10.09 – 10.98, Protein content ranged from 9.80 – 24.25, Fat content ranged from 4.94 – 16.65, Carbohydrate content ranged from 43.11 – 71.03, Fibre content ranged from 3.37 – 15.67, Ash content ranged from 2.59 – 2.87% and Energy value ranged from 367.78 – 423.69 Kcal. The functional properties showed that Water Absorption Capacity ranged from 2.70 – 2.91, Oil Absorption Capacity ranged from 1.90 – 2.72, Bulk Density ranged from 0.69 – 0.71, Swelling Index ranged from 0.68 – 1.04 g/ml and Gelation Capacity ranged from 5 – 10% of the complementary food samples. The sensory attribute also revealed that the complementary food samples proved to be of good quality but the controlled sample (A) was most preferred by the panellist. Conclusion: It could be concluded that the Complementary food was produced from millet, baobab fruit pulp and soy flour. Though, samples were found to be low in protein, fat and energy. The carbohydrate, fibre and ash contents were found to increase with increase in baobab fruit pulp addition. Gelation capacity, swelling index and Oil absorption capacity increase with addition of baobab fruit pulp. On the other hand the bulk density and water absorption capacity decrease with increase baobab fruit pulp addition. The sensory properties indicated that sample A was the most preferred sample.


Author(s):  
A. K. Veligodska ◽  
O. V. Fedotov ◽  
A. S. Petreeva

<p>The influence of certain nitrogen compounds - components of glucose-peptone medium (GPM) on the accumulation of carotenoids by some strains was investigated by surface cultivating basidiomycetes. The total carotenoid content was set in acetone extracts of mycological material spectrophotometrically and calculated using the Vetshteyn formula.</p> <p>As the nitrogen-containing components used GPM with 9 compounds, such as peptone, DL-valine, L-asparagine, DL-serine, DL-tyrosine, L-proline, L-alanine, urea, NaNO<sub>3</sub>. The effect on the accumulation of specific compounds both in the mycelium and in the culture fluid of carotenoids by culturing certain strains of Basidiomycetes was identified.</p> <p>Adding to standard glucose-peptone medium peptone at 5 g/l causes an increase of carotenoid accumulation by strain <em>L. sulphureus</em> Ls-08, and in a concentration of 4 g/l by strains of <em>F. hepatica </em>Fh-18 and <em>F. fomentarius</em> Ff-1201.</p> <p>In order to increase the accumulation of carotenoids in the mycelium  we suggested to make a standard glucose-peptone medium with proline or valine for cultivating of <em>L. sulphureus</em> Ls- 08 strain; alanine for <em>F. fomentarius</em> Ff-1201 strain; proline, asparagine and serine - for strain Fh-18 of <em>F. hepatica</em>. The results can be implemented in further optimization of the composition of the nutrient medium for culturing strains of Basidiomycetes wich producing carotenoids.</p> <p><em>Keywords: nitrogen-containing substances, Basidiomycetes, mycelium</em><em>,</em><em> culture filtrate, carotenoids</em></p>


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