Bortrager reaction
The borax test for anthraquinones involves mixing a sample with borax and heating it to produce a colored solution. The presence of anthraquinones is indicated by the color change in the solution. This test is commonly used to detect the presence of anthraquinones in organic compounds.
Angus Campbell Mackay has written: 'Aspects of the chemistry of anthraquinones' -- subject(s): Anthraquinones
The aloe plant can smell bad because of the presence of compounds called aloin and anthraquinones, which can give off a strong and unpleasant odor.
The aloe vera plant can smell bad due to the presence of compounds called aloin and anthraquinones, which have a strong and sometimes unpleasant odor.
Rubia cordifolia, also known as Indian madder, contains chemicals called anthraquinones, such as alizarin and purpurin, which are responsible for its medicinal properties. These compounds give the plant its red color and are often used in traditional medicine for their anti-inflammatory and antioxidant effects.
Borntrager's test is a chemical test for the identification of anthraquinone glycosides. Here anthraquinone glycosides are four type which O, N, S, C, and borntrager's test is use for O glycosides and modify borntrager's test use for C glycosides In this test boil test sample with 1ml of sulphuric acid in a test tube for 5min,filter while hot. Cool the filtrate and shake with equal volume of dichloromethane or chloroform then separate the lower layer of chloroform and shake it with half volume of dilute ammonia. A rose pink to red colour is produced in the ammonical layer. In some cases the anthraquinones may not answer for borntrager's test due to it's reduced form....in that time ferric chloride is used.......this test may called modified bontrager's test......... Reference: Text book of pharmacognosy by CK. kokate, AP. purohit,and SB.gokhale.
Phytochemical screening - is a process of tracing plant constituents. For example you want to found out if a certain plant contains alkaloids (a plant constituent) then, you will be performing a phytochemical screening procedures for alkaloids (in this case mayer's and Wagner's test). There are general plant constituents that can be performed with a standard test. And these are screenig for: Alkaloids Saponin glycosides Cardenolides and Bufadionolides Flavonoids Tannins and Polyphenolic compounds Anthraquinones Cyanogenic glycosides Carbohydrates Fixed oils, Fats, and Volatile oils.
Anthraquinones, polysaccharides including acemannan, arabinose, cellulose, galactose, mannose and xylose. Prostaglandins, fatty acids, enzymes, amino acids, vitamins, minerals and other substances.
A clear gel from the inside of the spike leaves, is the part used for topical application. Anthraquinones, which have a laxative effect, are contained in the bitter yellow sap of the middle leaf layer.
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Ruth Eliza Okey has written: 'A proximate analysis of the alcoholic extract of the root of Rumex cripus, and a comparison of the hydroxymethyl-anthraquinones present with those from certain other drugs' -- subject(s): Rumex crispus 'Nutritive value of foods purchased by dependent families' -- subject(s): Food, Nutrition