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Effect of Drying Temperature on Nutritional Content of Moringa Oleifera Leave
Ayegba Clement,
Makinde Olatunde,
Obigwa Patrick,
Orijajogun Joyce
Issue:
Volume 1, Issue 3, December 2017
Pages:
93-96
Received:
19 April 2017
Accepted:
5 June 2017
Published:
11 September 2017
DOI:
10.11648/j.wjfst.20170103.11
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Abstract: Moringa oleifera, an edible tree found worldwide in the dry tropics, is increasingly being used as nutritional supplementation. Loss of nutrients can be induced by a number of factors. Obviously, losses of vitamins depend on cooking time, temperature, and cooking method. In this study the effect of temperature on vitamin A, vitamin C and protein content of moringa leave was investigated. Fresh samples of Moringa leaves were collected, sorted, dried using two different drying methods viz; oven drying and sun drying methods. The dried plant samples were ground using clean laboratory blender, the powdered plant samples were analysed separately for their protein, vitamin A and vitamin C constituents using appropriate methods. The nutritional content of the moringa oleifera leaves show variation with different drying condition. Drying temperature of 60°C gave the best drying temperature.
Abstract: Moringa oleifera, an edible tree found worldwide in the dry tropics, is increasingly being used as nutritional supplementation. Loss of nutrients can be induced by a number of factors. Obviously, losses of vitamins depend on cooking time, temperature, and cooking method. In this study the effect of temperature on vitamin A, vitamin C and protein co...
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Evaluation of Proximate and Mineral Composition Profile for Different Food Barley Varieties Grown in Central Highlands of Ethiopia
Yadesa Abeshu,
Esayas Abrha
Issue:
Volume 1, Issue 3, December 2017
Pages:
97-100
Received:
4 August 2017
Accepted:
29 August 2017
Published:
12 September 2017
DOI:
10.11648/j.wjfst.20170103.12
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Abstract: Barley (Hordeum Vulgare L.) is the healthiest cereal crop which is mainly grown in the central highland of Ethiopia. Also there were 22 food barley varieties which were improved, verified and released by different Agricultural Research Centers specially Holeta Agricultural Research Center which is strongly working on barley breading program. Therefore in order to evaluate their nutritional composition and quality performance of the varieties this study was aimed to profile the baseline information of nutrients. For this case the proximate and some mineral composition of the varieties were determined by using appropriate Standard Official Procedures. The proximate composition was determined according to AOAC method and like CP, MC, Crude fat, Crude fiber, Total ash, CHO and Energy were analyzed. All the proximate analysis result means were statistically significant and they were in the range of acceptable recommendation as FAO and other nutritional information sources. Varieties like Cross 41/98, Setegn, Estayish, HB1307, Ardu12-60B and Belemi were the highest in mean value of CP, Total ash, Crude fiber, Crude fat and CHO respectively. The mineral content of the varieties were also statistically significant as the study results and it was in average range of expected composition. Shege, Belemi, Agegnehu and Besso Varieties were significantly highest in Ca, K, Zn, Fe and Mg mean values than other varieties respectively. Therefore these food barley varieties were potent in proximate and mineral nutrient composition for human consumption especially good fiber content source.
Abstract: Barley (Hordeum Vulgare L.) is the healthiest cereal crop which is mainly grown in the central highland of Ethiopia. Also there were 22 food barley varieties which were improved, verified and released by different Agricultural Research Centers specially Holeta Agricultural Research Center which is strongly working on barley breading program. Theref...
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The Growth and Lipid Accumulation of Spirulina sp. Under Different Light Conditions
Trung Vo,
Ngoc Nguyen,
Phong Huynh,
Hung Nguyen,
Tran Nim,
Dat Tran,
Phuc Nguyen
Issue:
Volume 1, Issue 3, December 2017
Pages:
101-104
Received:
14 September 2017
Accepted:
19 October 2017
Published:
3 December 2017
DOI:
10.11648/j.wjfst.20170103.13
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Abstract: Spirulina is a filamentous, spiral-shaped cyanobacterium (blue green alga), known as a great resource of natural and bioactive compounds. The colour of Spirulina sp. cell under the red and white light conditions rapidly transferred from green to yellow after 5 days of cultivation. High biomass and lipid accumulation of Spirulina sp. were achieved after 5 days of culture under the red light condition. The results showed that the red and white light conditions induced the growth and biosynthesis organic compounds such as carotenoid and lipid with high concentration compared to the blue condition in Spirulina sp.
Abstract: Spirulina is a filamentous, spiral-shaped cyanobacterium (blue green alga), known as a great resource of natural and bioactive compounds. The colour of Spirulina sp. cell under the red and white light conditions rapidly transferred from green to yellow after 5 days of cultivation. High biomass and lipid accumulation of Spirulina sp. were achieved a...
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Bacteriological Analysis of Drinking Water in Port Sudan City, Red Sea State, Sudan
Abd Elrahman Mustafa Abd Elrahman Osman,
Shingray Osman Hashim,
Mohammed Abdall Musa,
Omer Mohammed Tahir,
Ahmed Abd Alla Mohamedani
Issue:
Volume 1, Issue 3, December 2017
Pages:
115-123
Received:
22 November 2017
Accepted:
4 December 2017
Published:
17 January 2018
DOI:
10.11648/j.wjfst.20170103.15
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Abstract: This study was a descriptive study to assess the bacteriological quality of Port Sudan drinking water sources and its subsidiary network until it reaches the consumers; in the period October 2005 and April 2007. Ten samples as negative control, and ninety samples were collected from seven different sources and examined bacteriologically to detect the possible bacterial contamination according to the detection of indicator organisms (total coliform, faecal coliform and Escherichia Coli) and their count. Analysis was done by two methods including multiple tube method (also named most probable number (MPN)) and membrane filtration method (MF). Results obtained revealed the analysis of negative control showed no bacterial detection. The analysis of surface water (fresh water) indicated the presence of the indicator organisms (all three types) with the highest average concentrations 1800+org/100 ml by MPN and (1567 org/ 100 ml by MF. Tubes from wells at the water source were contaminated with total coliform only and with low average concentration of 10.6 org/100ml by MPN and 9.8 org/100ml by MF. Drinking water samples, after treatment also indicated presence of contamination due to the presence of three types of indicator organisms with figures 793 org /100ml by MPN and 542 org/100ml by MF (average). This may indicate that the chemical used in treatment or methods of application are questionable. Desalination water, on the other hand, showed minimal contamination at the site of desalination plant. However, the same water was found to be contaminated during distribution (tankers & jericans). Samples taken from the drinking water network (houses, reservoirs) were highly contaminated by the three groups of indicator organisms. Therefore, it was not suitable for human consumption. Also the study has shown the following grade, 24.4% of all tested samples were excellent, 5.6% of all tested samples were satisfactory, 12.2% of all tested samples were suspicious, 57.8% of all tested samples were unsatisfactory.
Abstract: This study was a descriptive study to assess the bacteriological quality of Port Sudan drinking water sources and its subsidiary network until it reaches the consumers; in the period October 2005 and April 2007. Ten samples as negative control, and ninety samples were collected from seven different sources and examined bacteriologically to detect t...
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