Document Details
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Document Type |
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Thesis |
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Document Title |
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OLIVE OIL: OFFICIAL STANDARDS IN RELATION TO ITS BIOLOGICALY ACTIVE CONSTITUENTES زيت الزيتون : المواصفات القياسية وعلاقتها بالمكونات ذات النشاط البيولوجي |
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Subject |
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Faculty of Sciences |
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Document Language |
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Arabic |
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Abstract |
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Quality strategies, designed to optimize product quality to provide an important method for differentiating of local products from imported ones. The aim of this study was to evaluate the biological components of locally produced olive oil in KSA in comparison with imported one to meet the gulf standards. To achieve this purpose, physical properties (relative density, refractive index) and chemical properties (peroxide value, saponification value, Acid value, Iodine value, unsaponifiable matter) as well as active ingredients (fatty acid, total phenolics as galic acid, fatty alcohols, squalene, sterol, ß-carotene, chlorophyll, vitamins A, E and K, trace element and heavy metals) of locally produced and imported olive oil samples were performed. The results obtained showed that, there was statistically significant decrease in peroxide value while acid value is increase, oleic acid and linolenic acid were statistically significant increased in locally compared imported ones. On the other hand, linoleic acid was highly significant decreased and iron was highly significant increased in both locally and imported relative to gulf standards. Squalene, sterols, ß-carotene were significantly higher in locally than imported ones. Lead and arsenate were detected very low in both types which is less than gulf standard. In conclusion it was indicated that olive oil locally produced in KSA contains higher levels of phenolics, fatty acids, fatty alcohol, vitamins A, E and K compared with imported ones that are beneficial for normal health. It is recommended to extend the area for olive cultivar in kingdome of Saudi Arabia.
Key words: olive oil, squalene, phenolics, vitamins, Saudi Arabia. |
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Supervisor |
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Prof. Dr Said Salama Moselhy |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1431 AH
2010 AD |
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Co-Supervisor |
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Prof. Dr Abdullrahman Labeed Al-Malki |
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Added Date |
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Sunday, April 11, 2010 |
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Researchers
| عبد الله محمد عسيري | Assiri, Abdullah Mohammed | Researcher | Master | |
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