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DETERMINATION OF THE PRESENCE AND CONCENTRATION OF SOME PHYTOCHEMICALS IN AVOCADO PEAR (PERSEA AMERICANA MILL) SEED
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ABSRACT - [ Total Page(s): 1 ]Phytochemical screening to determine the presence and concentration of tannins, saponins, alkaloids, flavonoids, sterols and cardiac glycosides in Persea americana was carried out. The sample was prepared by cutting the seed into small pieces, drying and grinding with Thomas Willey milling machine. The ground sample was stored in an airtight container for analysis. The presence of alkaloid was determined by Wagner’s test, flavonoid by ferric chloride test, tannin by acid test, saponin by emulsion test and cardiac glycoside by glacial acetic acid test. Quantitative determination of some
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CHAPTER ONE - [ Total Page(s): 1 ]CHAPTER ONEINTRODUCTIONBackground of the studyPhytochemicals are a large group of plant derived compound hypothesized to be responsible for much of the disease protection conferred from diets high in fruits, vegetables, beans, cereals and plant-based beverages such as tea and wine (Hollman, 2005). They are biologically naturally occurring chemical compounds found in plants . They protect plants from disease and damage and contribute to the plants colour, aroma and flavor. They also protect plants from environmental hazards such as pollution, stress, drought, uv exposure and pat ... Continue Reading
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ABSRACT - [ Total Page(s): 1 ]Phytochemical screening to determine the presence and concentration of tannins, saponins, alkaloids, flavonoids, sterols and cardiac glycosides in Persea americana was carried out. The sample was prepared by cutting the seed into small pieces, drying and grinding with Thomas Willey milling machine. The ground sample was stored in an airtight container for analysis. The presence of alkaloid was determined by Wagner’s test, flavonoid by ferric chloride test, tannin by acid test, saponin by emulsion test and cardiac glycoside by glacial acetic acid test. Quantitative determination of some
... Continue Reading
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