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003			EG-GiCUC
005			20250223032830.0
008			211017s2021 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.16.03.M.Sc.2021.Ra.E
100	0		_aRasha Hamdy Mohamed Mostafa
245	1	0	_aEffect of some technological Processes on soybean oil Quality in egypt and south Africa / _cRasha Hamdy Mohamed Mostafa ; Supervised Amira Shawky Soliman , Adel Youssef Girgis , Mohamed Said Abbas
246	1	5	_aتأثير بعض العمليات التكنولوجية على جودة زيت فول الصويا فى مصر و جنوب أفريقيا
260			_aCairo : _bRasha Hamdy Mohamed Mostafa , _c2021
300			_a142 P . : _bcharts , facsmilies ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of African Postgraduate Studies - Department of Natural Resources
520			_aCrude oil contains variable amounts of nontriglyceride materials. It is necessary to subject crude oil to four basic processing steps to convert it to a high-quality edible oil: Degumming, neutralization, bleaching, and deodorizing. The Degumming step is the important step of refining edible oils, particularly soybean oil that is rich in phospholipids. The objective of the present study was to investigate the effect of using different concentrations (0.5 {u2013} 2%) of electrolyte solutions [ NaCl and KCl] and their mixed solutions at different addition ratios (0.5 {u2013} 2%) on the quality characteristics of soybean oil. Data show the values of some physical and chemical characteristics of the crude soybean oil were within the range reported by those reported by (E.O.S 2015) While the phosphorus and iron contents were 369.68 and 3.11 ppm, respectively. As for, the fatty acids composition of crude soybean oil, the results indicated that both saturated and unsaturated fatty acids were within the range reported by those reported by (E.O.S 2015). As for the physical and chemical properties of the tested oils after the degumming and bleaching steps using electrolyte solutions at different addition ratios and concentrations, the chemical properties were significantly changing more than the physical properties, which showed no or little changes. Excluding the color reduction which was significantly increased, when the electrolyte concentration increased from 0.5 to 2 % with the electrolyte-oil addition ratio from 0.5 to 2 % v/w comparing with the treatment of phosphoric acid degumming. While, the acidity, acid value, peroxide value, and the ultraviolet absorption at 232 nm and 270 nm were significantly decreased after degumming and bleaching steps as the electrolyte concentration increased from 0.5 to 2 % with the electrolyte-oil addition ratio from 0.5 to 2 % v/w comparing with the treatment of phosphoric acid degumming
530			_aIssued also as CD
653		4	_aDegumming process
653		4	_aResidual phosphorus content
653		4	_aSoybean oil
700	0		_aAdel Youssef Girgis , _eSupervisor
700	0		_aAmira Shawky Soliman , _eSupervisor
700	0		_aMohamed Said Abbas , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAmira _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c82622 _d82622