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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(1): 207-222
DOI: http://dx.doi.org/10.20546/ijcmas.2017.601.026


Effect of Refining Process on the Quality Characteristics of Soybean and Cotton seed Oils
Adel Abd EL-Razek Mohdaly, Khaled Abd El-Hameed Seliem, Abd EL-Moneam Maher Abu EL-Hassan* and Awad Abdel Tawab Mahmoud
Food Science and Technology, Faculty of Agriculture, Fayoum University, Egypt
*Corresponding author
Abstract:

The objective of this research was to examine changes in physiochemical properties, oxidation indices, phenolic compounds and fatty acid composition during refining of cottonseed oil and soybean oil. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Rancimat method were used for determination of antioxidant capacities. The results obtained showed that specific gravity have decreased after refining, while refining process does not have a significant effect on the refractive index. Correspondingly, there was reduction in the chemical properties such as acid value, peroxide value, thiobarbituric acid, saponification value and unsaponifiable matter. The refining had a positive effect on the oxidative stability of the oil. Refined cottonseed oil showed relatively higher antioxidant activity by both DPPH and Rancimat methods than refined soybean oil. This study also revealed that the refining process caused approximately 48.8% and 50% decrease of total phenolic contents in soybean and cottonseed oils, respectively. There was an increase in the total monounsaturated fatty acids coupled with a significant decrease in the saturated fatty acids in the oil samples after refining process. The loss of bioactive compounds from crude oils is inevitable during the conventional refining processes. Therefore innovations in these oils processing are necessary to produce commercial oil with high antioxidant content.


Keywords: Cottonseed Oil,Fatty Acid, Physicochemical Properties, Refining, Soybean Oil, Unsaponifiable Matter.
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How to cite this article:

Adel Abd EL-Razek Mohdaly, Khaled Abd El-Hameed Seliem, Abd EL-Moneam Maher Abu EL-Hassan, Awad Abdel Tawab Mahmoud. 2017. Effect of Refining Process on the Quality Characteristics of Soybean and Cottonseed Oils.Int.J.Curr.Microbiol.App.Sci. 6(1): 207-222. doi: http://dx.doi.org/10.20546/ijcmas.2017.601.026