of Acetyleugenol (Clove Oil) from Cloves Purpose In this experiment‚ you will obtain the essential oil from cloves by steam distillation. You will then separate a component (acetyleugenol) from the oil by liquid-liquid extraction. Finally‚ you will isolate the acetyleugenol by using a rotovap for reduced pressure distillation‚ which will remove the organic solvent (dichloromethane). Background Whole cloves contain between 14% and 20% by weight of essential oils‚ but only half
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when dried‚ provide the cloves of commerce. The flowers have a strong refreshing odour if the seed are allowed to mature‚ most of the pungency is lost. Each berry has only one seed. The trees fruit usually about eight or nine years after planting. The whole tree is highly aromatic. The finest cloves come from Mallacca and Pemba and also East & West Indies‚ Mauritius and Brazil. Ethenomedicinal Practice It is used as a domestic spice world-wide. Tincture of cloves has been used for skin infections
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microscale distillation apparatus and isolate a natural product from cloves. Introduction By performing steam distillation we can isolate eugenol at lower temperature than its usual boiling point of 248 degree Celsius. Eugenol belongs to a category called essential oil. Many of these compounds are used as flavoring and perfumes and in the past were considered the essence of plant from which they were derived. Structure of eugenol (clove oil) and eugenol acetate: Reagents: Eugenol‚ CH2Cl2‚
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Jonathan Williams Professor Catherine Seltzer English 200 2 February 2011 The Colour Yellow The color yellow is a very significant part of Rita Dove’s “Thomas and Beulah.” Just simply the sights of the various ways the color yellow is used throughout poems like “Courtship” and “Taking in Wash” and also with the second section title “Canary in Bloom” can completely change the tone and setting of the poem being read. Yellow is frequently portrayed as a soft‚ warm‚ and happy color. In pictures‚ paintings
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Steam Distillation – Clove Oil Abstract: In this experiment‚ a situ method steam distillation was performed and essential oils were isolated from cloves. Once the oils were obtained‚ extraction techniques were used to extract a crude‚ eugenol‚ and acetyleugenol product sample. These samples were submitted for GC analysis and the normalization area percents were calculated to confirm their purity; for the crude sample it was 93.95% eugenol and 6.05% acetyleugenol‚ for the eugenol sample it
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lipids or fats from foods‚ both the method as well as the solvents chosen to perform a complete‚ or close to complete extraction are important. If these two elements are not taken into consideration‚ the extraction may not be complete‚ or the extract may contain a large quantity of undesired impurities. The natural fats and oil are mixtures of glycerides of fatty acids. Fats and oils are naturally occurring organic compounds which belong to a large group of water insoluble substances called lipids
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EXTRACTON OF SASAME OIL USING DIFFERENT METHODS OF EXTRACTION FOOD PROCESSING PRACTICAL (TFT 709) BY GROUP THREE MEMBERS ISMAILA AYUBA RAMADAN Submitted to Department of Food Technology University of Ibadan Lecturer-in-charge Dr. Akinoso Febuary‚ 2012 Abstract Oil extraction was carried out using two different extraction method (water and solvent) and the yield for different method were obtained. The free fatty acid for different oil was also determined
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Experiment 7- Isolation of the Major Component of Clove Oil Pre-Lab Questions: 1.) Briefly explain the concept of steam distillation. What is the difference between a simple distillation and a steam distillation? When a mixture of two immiscible liquids are distilled it is referred to as codistillation. This process is referred to as steam distillation when one of the liquids is water. This distillation is used to separate organic liquids from natural products and reaction mixtures in which
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Dares Salaam P.O. BOX 35061 Tanzania kolation of Oil of Clove and Separation of Eugenol and Acetyl Eugenol . An instructive experiment for beginning chemistry undergraduates chloride‚ and hydroxamic ester tests‚ and the preparation of the henzovl derivative of eupenol. Finally‚ ir spectra of the two components are examined‚ and the information ohtained comoared with that from chemical tests. Practical Detalls Crush about 30-35 g of cloves with pestle and mortar and place in the distillation
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Definition of Terms The following terms were defined for the readers to have a better understanding of the reserch paper. Active constituent. It refers to the component of the plant responsible for the exhibitory activity of the drug.1 Agar. It is gelatinous colloidal extractive of a red alga (as of the genera Gelidium‚ Gracilaria‚ and Eucheuma) used especially in culture media or as a gelling and stabilizing agent in foods.2 Agar-well diffusion method.3 It is a method of bioassay wherein
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