Umbelliferone from tea leaves
نویسندگان
چکیده
منابع مشابه
Transfer of 226Ra and 137Cs from tea leaves to drinking tea
Background: Two of the important radionuclides which are entered to environment and human diet are radium-226 (226Ra) and cesium-137 (137Cs). It is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. An experiment has been performed at the environmental monitoring section...
متن کاملBlending of Clonal Tea Leaves with Leaves from Seedlings in Order to Improve the Quality of Made Tea
The clonal tea is known for its quality, nutrionally and medicinally valuable biochemical components. But the availability of the clonal tea is limited. Tea plantations all over south India is maximum engaged by the seedlings. Thus in order to enhace the quality of the made tea from seedlings a blending attempt was made and the biochemical components were quantified using the available protocol...
متن کاملExtraction and isolation of Caffeine from tea leaves
General background and overview of the experiment: Humankind has historically used advantageous compounds derived from plants and animals. For instance, various extracts from plants have been used as teas, potions, medicines and poisons. Though these extracts can contain a mixture of many different chemicals, often only one or few are responsible for the activity of the extract. For decades suc...
متن کاملAntioxidants from steamed used tea leaves and their reaction behavior.
The most efficient steaming conditions below 200 degrees C for extracting antioxidants from used tea leaves and their reaction behavior during the steaming treatment were investigated. The antioxidative activity of the steamed extracts increased with increasing steaming temperature, and the yield of the ethyl acetate extract fraction from each steamed extract showing the greatest antioxidative ...
متن کاملRemoval of Pb (II) from Aqueous Solutions Using Waste Tea Leaves
Background: The presence of lead in natural waters has become an important issue around the world. Lead has been identified as a highly toxic metal that can cause severe environmental and public health problems and its decontamination is of utmost importance. The aim of this work was to evaluate the adsorption of lead (Pb(II)) on waste tea leaves as a cheap purification method. Methods: In thi...
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ژورنال
عنوان ژورنال: Chemistry of Natural Compounds
سال: 1974
ISSN: 0009-3130,1573-8388
DOI: 10.1007/bf00568233