while Solid-liquid extraction allows soluble components to be removed from solids using a solvent. These two types of extraction were used to extract caffeine from tea leaves (Thea sinensis). Caffeine belongs to the group of compounds known as Alkaloids. Alkaloids are a diverse group of compounds that are found in plants and contain basic nitrogen atoms. There were three methods used in extracting caffeine from tea leaves. These were isolation‚ purification and characterization of caffeine. Based
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nicotine is? Well the typical definition states that nicotine is alkaloid found in the family of plants called Solanaceae and which acts as a nicotinic acetylcholine agonist.To explain‚ alkaloid is a natural chemical compound . The are mostly used in medicine (morphine) or as stimulants (caffeine and nicotine). Solanaceae is a family of plants also called nightshade. Solanaceae plants are best known from being rich in alkaloids. Nicotinic acetylcholine agonist is a kind of substance which emulates
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3. Results and discussion 3.1 Nutritional analysis In the present study‚ the potential benefits were shown by nutritional attributes of dried bathua (Table1). Moisture content and dry matter analysis‚ reporting during nutritional analysis is very important because it directly affects the nutritional content of vegetable. The moisture content was quite low (5.06%) which may be advantageous in view of increasing the sample’s shelf life. Bathua was found to be rich in carbohydrates (40.84%). There
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showed that the alkaloids are related to pyridine‚ which he synthesized in 1876 from acetylene and prussic acid. Some of his first work was related with the study of a new Bismuth mineral‚ which was only recognized as a metal until the 18th Century. William Ramsay also verified Roland Eötvö ’s law for the constancy of the rate of change of molecular surface energy with temperature. Ramsay published his work in accordance to Dobbie‚ on the decomposition products of the quinine alkaloids. William was
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psychotropic effects‚ members of Solanaceae have been prized for their alkaloid content and used throughout history (NHM 2008). Important drug plants include deadly nightshade or belladonna (Atropa belladonna)‚ jimson weed (Datura stramonium)‚ henbane (Hyoscyamus niger)‚ and tobacco (Nicotiana tabacum) (NHM 2008). Mandrake‚ the common name for members of the plant genus Mandragora‚ contains deliriant hallucinogenic tropane alkaloids such as hyoscyamine and the roots sometimes contain bifurcations causing
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acid where 3-hydroxybenzoic acid was the major phenolic compound followed by apigenin-7-glycoside. Another study on preliminary phytochemical screening of methanolic seeds extract of Cucumis melo var. agrestis grown in India showed the presence of alkaloids and triterpenoids in greater amounts‚ carbohydrates‚ proteins and phytosterols in minor amounts and the absence of anthraquinone and tannins (Arora et al.‚
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Guyabano and Diabetes An article in “African Journal of Traditional Complementary and Alternative Medicine” about in 2008 have reported that a clinical study done on rats induced with diabetes mellitus then fed with guyabano (Annona Muricata Linn) extracts showed positive effects of lowering the blood sugar levels in animals. Another study reported by the same publication showed that animals with induced diabetes mellitus that consumed guyabano extract has shoed remarkable increase of antioxidants
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CHAPTER II REVIEW OF RELATED LITERATURE Ampalaya One such weapon is the wrinkly green vegetable with a distinctive bitter taste called ampalaya. Known in the science world as Momordica charantia‚ it is called bitter gourd or bitter melon. In terms of nutritional contents‚ the fruits and leaves of the ampalaya are reportedly rich in minerals and vitamins‚ notably iron‚ calcium‚ phosphorus and Vitamin B. (http://htacio.wordpress.com/2007/11/27/ampalaya-natural-weapon-against-diseases/)
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ANTITERMITICPROPERTYOF PLANT EXTRACT Artemisia vulgaris Linn.(Damong Maria) AND Manikarazapota Linn. (Chico) Daño Manuel Victor A. ErmoginoAlgen F. Southern Luzon State University College of Arts and Sciences B. S. Biology March 2013 Chapter I INTRODUCTION Coptotermesvastator or Philippine milk termitesare social insectsthat raise their young as a group of workers‚ soldiers and reproductive queen and king. They cause significant losses to annual and perennial
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leaf‚ flower and fruit of VN was done to evaluate in vitro antibacterial activity against phytopathogens Pseudomonas solanacearum and Xanthomonas axonopodis. The ethyl acetate extract showed significant inhibition. Phytochemical screening yielded alkaloids‚ flavonoids‚ tannins‚ cardiac glycosides and terpenoids. • Antifungal: (1) New antifungal flavonoid glycoside from Vitex negundo: Study found a new isolated flavone glycoside and a known compound to have significant antifungal activity against Tricophyton
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