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Pharmacognosy

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541:. Terpenes and terpenoids are the primary constituents of the essential oils of many types of plants and flowers. Essential oils are used widely as natural flavor additives for food, as fragrances in perfumery, and in traditional and alternative medicines such as aromatherapy. Synthetic variations and derivatives of natural terpenes and terpenoids also greatly expand the variety of aromas used in perfumery and flavors used in food additives. The fragrance of 1649: 242:
particularly for botanical products (widely available as dietary supplements in the U.S. and Canada), quality control purposes, pharmacopoeial protocols and related health regulatory frameworks. At the same time, development in other areas of research has enormously expanded the subject. The advent of the 21st century brought a renaissance of pharmacognosy, and its conventional botanical approach has been broadened up to molecular and
1297: 700:(such as insects, animal feces, mold, fungi, etc.), and recognizing the plant by its characteristic tissue features. Techniques such as microscopic linear measurements, determination of leaf constants, and quantitative microscopy are also utilized in this evaluation. The determination of leaf constants includes stomatal number, stomatal index, vein islet number, vein termination number, and palisade ratio. 350: 579: 31: 471:
are a class of chemical compounds containing a nitrogen ring. Alkaloids are produced by a large variety of organisms, including bacteria, fungi, plants, and animals, and are part of the group of natural products (also called secondary metabolites). Many alkaloids can be purified from crude extracts
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are molecules in which a sugar is bound to a non-carbohydrate moiety, usually a small organic molecule. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzyme hydrolysis, which causes the sugar
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defines pharmacognosy as "the study of natural product molecules (typically secondary metabolites) that are useful for their medicinal, ecological, gustatory, or other functional properties." Similarly, the mission of the Pharmacognosy Institute at the University of Illinois at Chicago involves
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As late as the beginning of the 20th century, the subject had developed mainly on the botanical side, being particularly concerned with the description and identification of drugs both in their whole state and in powder form. Such branches of pharmacognosy are still of fundamental importance,
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Harrison, E. (November 1929). "Liddell and Scott, Part IV – A Greek-English Lexicon. Compiled by H. G. Liddell and R. Scott. A new edition … by H. Stuart Jones and R. Mckenzie. Part IV.: ⋯ξευτον⋯ω—θησαυριστικ⋯ς. Oxford: Clarendon Press, 1929. Paper, 10s. 6d".
611:, followed by next round of separation and assaying. Typically, such work is initiated after a given crude drug formulation (typically prepared by solvent extraction of the natural material) is deemed "active" in a particular 767: 254:
plant-based and plant-related health products for the benefit of human health. Other definitions are more encompassing, drawing on a broad spectrum of biological subjects, including
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produced from resins. When terpenes are modified chemically, such as by oxidation or rearrangement of the carbon skeleton, the resulting compounds are generally referred to as
663:, to name a few, prior to European colonization. Knowledge of traditional medicinal practices is disappearing in indigenous communities, particularly in the Amazon. 659:) for primary health care. Native American cultures have also relied on traditional medicine such as ceremonial smoking of tobacco, potlatch ceremonies, and 186: 409:. It is these secondary metabolites and pigments that can have therapeutic actions in humans and which can be refined to produce drugs—examples are 696:
Microscopic evaluation is essential for the initial identification of herbs, identifying small fragments of crude or powdered herbs, identifying
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assay. If the end-goal of the work at hand is to identify which one(s) of the scores or hundreds of compounds are responsible for the observed
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are the dried, unprepared material of plant, animal or mineral origin, used for medicine. The study of these materials under the name
1632: 1389: 328:: the study of chemicals derived from plants (including the identification of new drug candidates derived from plant sources); 85:, and biological properties of drugs, drug substances, or potential drugs or drug substances of natural origin as well as the 1252: 334:: the process by which animals self-medicate, by selecting and using plants, soils, and insects to treat and prevent disease; 196:
Originally—during the 19th century and the beginning of the 20th century—"pharmacognosy" was used to define the branch of
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herb, a herb that was known in Chinese medicine to treat fever. However, it was found that its plant extracts had
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was first developed in German-speaking areas of Europe, while other language areas often used the older term
527:, which are often strong smelling and thus may have a protective function. They are the major components of 1602: 1268: 1158: 928: 1143:
Balick, M. J. (1990). "Ethnobotany and the identification of therapeutic agents from the rainforest".
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activity does not necessarily translate to biological activity in humans or other living systems.
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Farnsworth NR (1988). "Screening plants for new medicines". In Wilson EO, Peters FM (eds.).
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In the past, in some countries in Asia and Africa, up to 80% of the population may rely on
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determine structure(s) of active compound(s), typically by using spectroscopic methods.
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Dhami, N. (2013). "Trends in Pharmacognosy: A modern science of natural medicines".
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Farnsworth, N. R. (1990). "The role of ethnopharmacology in drug development".
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fractionate the crude extract, e.g. by solvent partitioning or chromatography.
174:, meaning 'I know, perceive'), meaning 'to conceptualize' or 'to recognize'. 1667: 1443: 1209: 879: 604: 495: 461: 316:: the study of pharmacological qualities of traditional medicinal substances; 291: 279: 177:
The term "pharmacognosy" was used for the first time by the German physician
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A typical protocol to isolate a pure chemical agent from natural origin is
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activity, leading to the Nobel Prize winning discovery of artemisinin.
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by acid-base extraction. Many alkaloids are toxic to other organisms.
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Plant-Derived Natural Products: Synthesis, Function, and Application
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repeat steps 1) and 2) until pure, active compounds are obtained.
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defines pharmacognosy as "the study of the physical, chemical,
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The stomatal index is the percentage formed by the number of
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part to be broken off, making the chemical available for use.
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Franchi, Stefano; Bianchini, Francesco, eds. (2011-01-01).
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E is the number of epidermal cells in the same unit area.
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activity, the path to that end is fairly straightforward:
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In addition to the previously mentioned definition, the
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copy in Arabic, describes medicinal features of various
340:: the study of chemicals derived from marine organisms. 1269:"Stomatal Index Calculator | Calculate Stomatal Index" 238:("science of crude drugs") is also used synonymously. 1244:
Textbook of Pharmacognosy and Phytochemistry - E-Book
719: 985: 983: 761: 1184:Su, Xin-zhuan; Miller, Louis H. (November 2015). 1665: 1024: 892: 523:, produced by a variety of plants, particularly 980: 762:{\displaystyle S.I.={\frac {S}{E+S}}\times 100} 322:: the study of medicinal use of plant extracts; 1323: 711:, with each stoma being counted as one cell. 573: 361:produce bright red, yellow and orange shades. 97:The word "pharmacognosy" is derived from two 557:produce shades of red, yellow and orange in 506:that give tea its astringency are phenolics. 1025:Springbob, Karen; Kutchan, Toni M. (2009). 821:Fields, Deborah; Zoppi, Lois (2016-08-01). 820: 691: 149: 143: 1330: 1316: 1127: 1112: 626:test the fractions thereby generated with 1241:Shah, Biren; Seth, Avinash (2012-05-14). 1217: 777:S is the number of stomata per unit area 490:that give grapes their purple color, the 389:, which are found in all plants; and (2) 1390:Separation of prescribing and dispensing 1240: 1183: 856: 577: 348: 344: 29: 14: 1666: 1142: 993:Phytochemicals in Nutrition and Health 989: 482:phenolics) are compounds that contain 1311: 925: 846:The American Society of Pharmacognosy 479: 895:The Search for a Theory of Cognition 210:in their crude, or unprepared form. 27:Study of plants as a source of drugs 24: 181:(1759–1809) in his published book 25: 1690: 1289: 960:American Society of Pharmacognosy 519:are a large and diverse class of 251:American Society of Pharmacognosy 79:American Society of Pharmacognosy 77:, and other natural sources. The 1648: 1647: 1608:List of pharmaceutical companies 1295: 795:List of plants used in herbalism 1628:Pharmacies in the United States 1261: 1234: 1177: 1151: 1136: 1121: 1115:Bioactive Compounds from Plants 1106: 1082: 1051: 1029:. In Lanzotti, Virginia (ed.). 707:divided by the total number of 460:Plants synthesize a variety of 1018: 966: 948: 919: 886: 850: 839: 814: 92: 13: 1: 807: 666:With worldwide research into 605:bioassay-guided fractionation 44: 1337: 1247:. Elsevier Health Sciences. 942:10.1016/j.hermed.2013.06.001 464:, but most are derivatives: 405:used to attract insects for 206:in German) which deals with 170: 109: 7: 1603:Pharmacy benefit management 1190:Science China Life Sciences 783: 774:S.I. is the stomatal index 589:that is extracted from the 183:Lehrbuch der Materia Medica 10: 1695: 929:Journal of Herbal Medicine 574:Natural products chemistry 164: 119: 103: 1643: 1578: 1515: 1472: 1398: 1345: 1202:10.1007/s11427-015-4948-7 1064:World Health Organization 974:"Pharmacognosy Institute" 872:10.1017/s0009840x00053762 646: 191:Analecta Pharmacognostica 1598:Investigational New Drug 1439:Pharmaceutical chemistry 1385:Pharmacological activity 990:Meskin, Mark S. (2002). 823:"What is Pharmacognosy?" 692:Microscopical evaluation 369:as part of their normal 224:taken from the works of 1580:Pharmaceutical industry 1399:Pharmaceutical sciences 1033:. Springer. p. 3. 200:or commodity sciences ( 89:from natural sources". 1273:www.calculatoratoz.com 1059:"Traditional Medicine" 763: 600: 362: 232:. In German, the term 150: 144: 55: 1555:Pharmacist prescriber 1540:Consultant pharmacist 903:10.1163/9789401207157 801:Pharmacognosy Reviews 764: 581: 391:secondary metabolites 377:are divided into (1) 352: 345:Biological background 33: 1623:Pharmacies of Norway 1560:Pharmacy informatics 1454:Pharmacoepidemiology 1363:Prehistoric medicine 1304:at Wikimedia Commons 860:The Classical Review 717: 653:traditional medicine 433:from the flowers of 338:marine pharmacognosy 87:search for new drugs 1570:Veterinary pharmacy 1502:Pharmacy technician 1464:Pharmacocybernetics 1358:History of pharmacy 1145:Bioactive Compounds 1094:www.aidsinfonet.org 609:biological activity 379:primary metabolites 365:All plants produce 179:Johann Adam Schmidt 154:, 'know'; itself a 1565:Specialty pharmacy 1528:Community pharmacy 1497:Pharmacy residency 759: 601: 413:from the roots of 397:used by plants to 373:activities. These 367:chemical compounds 363: 56: 1661: 1660: 1618:Pharmacy in China 1545:Hospital pharmacy 1523:Clinical pharmacy 1459:Pharmacovigilance 1375:Prescription drug 1300:Media related to 1254:978-81-312-3260-6 1196:(11): 1175–1179. 1071:on April 28, 2004 751: 587:cardiac glycoside 521:organic compounds 314:ethnopharmacology 300:pharmacy practice 16:(Redirected from 1686: 1651: 1650: 1613:Medication costs 1588:Drug development 1550:Nuclear pharmacy 1427:Pharmacogenomics 1415:Pharmacodynamics 1411:Pharmacokinetics 1332: 1325: 1318: 1309: 1308: 1299: 1283: 1282: 1280: 1279: 1265: 1259: 1258: 1238: 1232: 1231: 1221: 1181: 1175: 1174: 1172: 1171: 1155: 1149: 1148: 1140: 1134: 1133: 1125: 1119: 1118: 1110: 1104: 1103: 1101: 1100: 1086: 1080: 1079: 1077: 1076: 1067:. 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The 476:Polyphenols 407:pollination 355:carotenoids 308:ethnobotany 294:, clinical 260:ethnobotany 244:metabolomic 235:Drogenkunde 230:Dioscorides 212:Crude drugs 93:Description 83:biochemical 63:crude drugs 48: 1334 35:Dioscorides 1668:Categories 1480:Pharmacist 1432:Toxicology 1370:Medication 1278:2024-05-17 1170:2021-10-11 1099:2016-02-24 1075:2009-03-12 866:(5): 189. 832:2023-03-09 808:References 549:is due to 538:terpenoids 533:turpentine 510:Glycosides 403:pheromones 203:Warenkunde 171:gi(g)nósko 165:γι(γ)νώσκω 1210:1674-7305 998:CRC Press 880:0009-840X 754:× 661:herbalism 531:, and of 469:Alkaloids 453:from the 445:from the 421:from the 371:metabolic 276:chemistry 132:) or the 130:knowledge 110:pharmakon 1679:Pharmacy 1653:Category 1380:Pharmacy 1339:Pharmacy 1228:26481135 784:See also 672:medicine 641:In vitro 628:in vitro 617:in vitro 613:in vitro 591:foxglove 567:tomatoes 547:lavender 525:conifers 517:Terpenes 502:and the 455:foxglove 439:morphine 435:cannabis 423:cinchona 381:such as 359:primrose 306:medical 296:pharmacy 246:levels. 198:medicine 139:cognosco 104:φάρμακον 1633:History 1346:General 1219:4966551 771:where: 705:stomata 630:assays. 593:plant, 583:Digoxin 559:pumpkin 504:tannins 451:digoxin 443:codeine 419:quinine 415:dahlias 158:of the 156:cognate 117:), and 101:words: 71:animals 1413:& 1251:  1226:  1216:  1208:  1037:  1004:  909:  878:  647:Herbal 565:, and 553:. 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Index

Pharmacognosist

Dioscorides
Materia Medica
plants
crude drugs
medicinal plants
animals
fungi
American Society of Pharmacognosy
biochemical
search for new drugs
Greek
drug
gnosis
knowledge
Latin
cognosco
cognate
Greek
Johann Adam Schmidt
Anotheus Seydler
medicine
Warenkunde
drugs
Crude drugs
Pharmakognosie
Galen
Dioscorides
Drogenkunde

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