krainaksiazek enhancement of artemisinin production in artemisia annua 20124205

- znaleziono 4 produkty w 2 sklepach

Enhancement of Artemisinin production in Artemisia annua - 2856493264

342,68 zł

Enhancement of Artemisinin production in Artemisia annua LAP Lambert Academic Publishing

Książki / Literatura obcojęzyczna

In the present work salt tolerant variant have been isolated and characterized in Artemisia annua. These mutants have allowed initial dissection of the signaling system for response to NaCl stress by identification of novel phenotypes. The isolation and characterization of these salt tolerant variant for morphological, biochemical and secondary metabolite profile forms the basis of this work. The objectives chosen for present research project were: (1) Isolation of induced salt tolerant variant, (2) Morphological and biochemical characterization of isolated salt tolerant variant at various stages of development, (3) Comparison of selected mutants with the wild type for secondary metabolite production and field performance in terms of yield related traits, and (4) Definition of the affected genes by the use of mutants and determination of the inheritance of genes so defined.


Enhancement Of Artemisinin Production In Artemisia Annua - 2857269382

319,99 zł

Enhancement Of Artemisinin Production In Artemisia Annua

Książki Obcojęzyczne>Nieprzypisane



Extraction of Artemisinin from Artemisia Annua - 2826623198

248,35 zł

Extraction of Artemisinin from Artemisia Annua GRIN Verlag

Książki / Literatura obcojęzyczna

Bachelor Thesis from the year 2008 in the subject Engineering - Chemical Engineering, grade: A, Bahir Dar University (Bahir Dar University Engineering Faculity), course: Chemical Engineering, language: English, abstract: AbstractMalaria disease is endemic in least developed countries like Ethiopia. The rapid development of drug-resistant malaria parasite strain leaves the need for new effective anti-malarial drugs. Artemisinin is a sesquiterpene lactone found in the leaves and flowers of plants Artemisia annua L and have different chemical structures and higher efficacy than others. The content of artemisinin is very small and from 0.5 to 1.2 % of dry weight of plants in Ethiopia. Extraction of artemisinin from Artemisia annua is mainly performed using hydrocarbon extraction processes. Extraction with Supercritical CO2, ethanol, ionic liquids, hydroflourocarbon HFC-134a and hexane extraction are extraction technologies and compared majorly in terms of their extraction efficiency, cost and drawback to environment. Since artemisinin is only present in the epidermis of the leaves, leaves were only washed on the outside by stirring appeared to be the most appropriate method and the first step in this research was solvent extraction using hexane. Step followed purify by repeated crystallization. Laboratory scale production data and procedures were listed for aremisinin extraction process. By using those data large scale production method was designed. And did material and energy balance calculations for large scale production process carried out by taking scientific approach followed by feasibility study. As a result my extractor was very large and it has 14.37m3 capacities it wasn t found in market. So I designed the required larger extractor that should fulfill the target of the project i.e. with simple, rapid, cost effective, environmental friendly and practical method for the isolation of artemisinin from Artemisia annua. The design the extractor I used the optimum ratio between solvent and leaves, optimum extraction time, optimum extraction temperature and optimum design of the stirrer paddles. In these thesis work extractor design, skirt design, bolt design, reinforcement calculations, preliminary equipment design (sizing), economic analysis calculations were included. In the profitability analysis Return on investment, payback period and net present worth calculated and the project was checked its feasibility. The payback period is 1.22yrs and it is economically acceptable that means this market is promising in Ethiopia in addition to save millions of Ethiopian and African from killer malaria.Key words: artemisinin, sesquiterpene lactone, hexane extraction


Artemisia annua - Pharmacology and Biotechnology - 2856494269

863,46 zł

Artemisia annua - Pharmacology and Biotechnology Springer, Berlin

Książki / Literatura obcojęzyczna

Artemisinin, a sesquiterpene lactone originally extracted from the medicinal plant Artemisia annua L., is an effective antimalarial agent, particularly for multi-drug resistant and cerebral malaria. However, the concentration of artemisinin in the plant is very low. Because the chemical synthesis of artemisinin is complicated and not economically feasible in view of the poor yield of the drug, the intact plant remains the only viable source of artemisinin production. Therefore, it is necessary to increase the concentration of artemisinin in A. annua to reduce the cost of artemisinin based antimalarial drugs. Plant scientists have focused their efforts on A. annua for a higher artemisinin crop yield. With the present volume, we are bringing together the research which is being done on this plant throughout the world and future possibilities for scientists and researchers who want to work on it.


Sklepy zlokalizowane w miastach: Warszawa, Kraków, Łódź, Wrocław, Poznań, Gdańsk, Szczecin, Bydgoszcz, Lublin, Katowice

Szukaj w sklepach lub całym serwisie

1. Sklepy z krainaksiazek pl enhancement of artemisinin production in artemisia annua 20124205

2. Szukaj na wszystkich stronach serwisu

t1=0.02, t2=0, t3=0, t4=0, t=0.02

Dla sprzedawców

copyright © 2005-2017  |  made by Internet Software House DOTCOM RIVER