WebMar 16, 2024 · tannin, also called tannic acid, any of a group of phenolic compounds in woody flowering plants that are important deterrents to herbivores and have a number of industrial applications. As secondary … WebPharmacognosy Notes NNZPJR, RPh 2013 Page 6o Play an important role in the acceptance of many foods and beverages by consumers. Classification of tannins o Hydrolysable tannins Hydrolysable tannins are esters of a sugar and of a variable number of phenolic acid molecules. The sugar is generally glucose.
Tannin Definition, In Plants, Uses, & Facts Britannica
WebAug 2, 2024 · PHARMACOGNOSY 184. Condensed tannins give the specific colored precipitates with FeCl3 test: a. blue-black ppt b. green-black ppt c. blue- green ppt d. blue ppt 185. Volatile oil plays a vital role in plants as: a. astringents c. insect repellants/attractants b. protein synthesizer d. cellular processes 186. WebOct 9, 2014 · The pharmacognosy is broadly defined as the scientific and systematic study of the structural, physical, chemical and sensory characters of crude drugs of vegetable, animal and mineral origin along with their history, method of cultivation, collection and preparation for the market. kasganj which state
Drugs Containing Tannins PDF Solubility Wood - Scribd
WebDownload MCQ in Pharmacognosy and more Pharmacy Exercises in PDF only on Docsity! PHARMACOGNOSY AND PHYTOCHEMISTRY Select the correct answer out of the given choices 1. Is Known as father of medicine? a) Aristotle b) … WebTannins are freely soluble in water, alcohol, glycerol, and acetone and dilute alkalies. They are sparingly soluble in chloroform, ethyl acetate and other organic solvents. They have an astringent taste. They yield purple, violet or black precipitate with iron compounds. WebTannins Catechu Pterocarpus Resins Benzoin Guggul Ginger Asafoetida Myrrh Colophony Glycosides Senna Aloes Bitter Almond Iridoids Terpenoids & Naphthaquinones Gentian Artemisia Taxus Carotenoids UNIT-III Isolation, Identification, and Analysis of Phytoconstituents a) Terpenoids: Menthol, Citral, Artemisinin b) Glycosides: Glycyrhetinic … kash 107.5 anchorage