|
Document Type |
: |
Thesis |
|
Document Title |
: |
COMPARATIVE STUDY OF THE VOLATILE CHEMICAL CONSTITUENTS OF HONEYS IN THE LOCAL MARKET دراسة مقارنة للمكونات الكيميائية الطيارة في العسل في السوق المحلي |
|
Subject |
: |
Faculty of Science |
|
Document Language |
: |
Arabic |
|
Abstract |
: |
Honey has been proven to be excellent healing for many diseases. Their properties are dependent mainly on their volatile fractions. Saudi markets cover many types of honey; some are local, and others imported. On this study volatile compounds on ten kinds of honey products with different prices, sources, and botanic origin were analyzed. Using two different extraction techniques: Liquid-liquid extraction and Head Space Solid Phase Microextraction (HS-SPME), followed by Gas Chromatography-Mass Spectrometry (GC-MS) for analysis. Three different SPME fiber coatings were used: 100µm Polydimethylsiloxane (PDMS), 50/30µm Divinylbenzene/Carboxene/polydimethylsiloxane (DVB/CAR/PDMS) and 60µm Polyethylene glycol (PEG). These three fibers are evaluated and compared in terms of a maximum signal obtained for total volatile compounds. PDMS and DVB/CAR/PDMS showed the best Outcomes. By using this LLE and HS-SPME up to 150 compounds belonging to different classes have been separated and identified. These compounds including Hydrocarbons, Alcohols, Organic acids, Aldehydes, Ketones, Phenols, Terpenoids, and Derivatives of Furan. Some compounds have not been reported previously including: 2H-1,4-Benzodiazepin-2-one, (+)-2-Bornanone, 3.beta.-Acetoxy-bisnor-5-cholenamide and 5H-1,4-Dioxepin. The proposed method is reliable and accurate for different kinds of honey of various botanical origins. |
|
Supervisor |
: |
Dr. Faten M. Ali Zainy |
|
Thesis Type |
: |
Master Thesis |
|
Publishing Year |
: |
1442 AH
2020 AD |
|
Co-Supervisor |
: |
Prof. Dr. Saleh Bahaffi |
|
Added Date |
: |
Tuesday, September 8, 2020 |
|
Researchers
| مناهل عبد خوجة | Khouja, Manahel Abed | Researcher | Master | |
|