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level: level 3

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level questions: level 3

Question	Answer
is a technique used to separate and purify liquids by taking advantage of the lower boiling points achieved under reduced pressure conditions. By reducing the pressure, the boiling points of the liquids are decreased, allowing for separation at lower temperatures and reducing the risk of thermal degradation.	Siphon Distillation
Chief source of citral	Lemongrass (Cymbopogon citratus)
Example of oleo gum resins	myrrh
Characteristic of Gum	1 Hydrophilic 2 Viscous
What is albumin ( in plants and its proteins)	Are probably not storage proteins Are characterized by solubility in water and in dilute aqueous solutions of salts, acids, and alkalies. And by heat coagulability. They are precipitated from solution by a saturated solution of ammonium sulphate or similar electrolyte. Proteins in this class are found widely distributed in living material. Many have been obtained in crystalline form. The beta-amylase of barley and legumelin of soybean and examples of plant albumins. The toxic principles of some seed are albumins, e.g., oxins of castor bean.
Often the volatile oil content of fresh plant parts (flower petals) is so small that oil removal is not commercially feasible by the aforementioned methods. In such instances, an odorless, bland, fixed oil of fat is spread in a thin layer on glass plates. The flower petals are placed on the fat for a few hours; then, repeatedly, the old petals are removed, and a new layer of petals is introduced. After the fat has absorbed as much fragrance as possible, the oil may be removed by extraction with alcohol. This process is known as enfleurage and was formerly used extensively in the production of perfumes and pomades.	Enfleurage
Main component of peel oil from citrus oil	Limonene
Constituent of saffrans	sassafras oil
Nomenclature of Alkaloids	(1) from the generic name of the plant yielding them (hydrastine, atropine) (2) from the specific name of the plant yielding them(cocaine, belladonine) (3) from the common name of the plant yielding them (ergotamine) (4) from their physiologic activity (emetine, morphine), and (5) occasionally from the discoverer (pelletierine)