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Dissertations / Theses on the topic 'Cyclopiazonic acid'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Beyer, Christian [Verfasser]. "Synthese des Indolalkaloids α-Cyclopiazonic Acid / Christian Beyer". Wuppertal : Universitätsbibliothek Wuppertal, 2011. http://d-nb.info/1010000063/34.

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2

Moorthie, Vijayalakshmi A. "Studies towards a biomimetic synthesis of Î±-cyclopiazonic acid." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420913.

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3

Boupha, Prasongsidh C., of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "Fate of the neurotoxic mycotoxin, cyclopiazonic acid in dairy products." THESIS_FST_XXX_Boupha_P.xml, 1998. http://handle.uws.edu.au:8081/1959.7/184.

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The aim of the study in this thesis was to assess the stability of the mycotoxin, cyclopiazonic acid (CPA) in milk and dairy products processed from contaminated milk. A method was developed to detect CPA in milk and milk products using micellar electrokinetic capillary chromatography (MEKC), a technique of capillary electrophoresis (CE), which was rapid and non-labour-intensive. The quantifying efficiency of CE in detecting CPA was compared to Reverse Phase Liquid Chromatography. Heat-stability of CPA in milk was assessed under different conditions. A longer heat treatment of 60 degrees centi

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4

Boupha, Prasongsidh C. "Fate of the neurotoxic mycotoxin, cyclopiazonic acid in dairy products." Thesis, View thesis, 1998. http://handle.uws.edu.au:8081/1959.7/184.

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The aim of the study in this thesis was to assess the stability of the mycotoxin, cyclopiazonic acid (CPA) in milk and dairy products processed from contaminated milk. A method was developed to detect CPA in milk and milk products using micellar electrokinetic capillary chromatography (MEKC), a technique of capillary electrophoresis (CE), which was rapid and non-labour-intensive. The quantifying efficiency of CE in detecting CPA was compared to Reverse Phase Liquid Chromatography. Heat-stability of CPA in milk was assessed under different conditions. A longer heat treatment of 60 degrees centi

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5

Boupha, Prasongsidh C. "Fate of the neurotoxic mycotoxin, cyclopiazonic acid in dairy products /." View thesis, 1998. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030801.153613/index.html.

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Thesis (Ph.D.) -- University of Western Sydney, Hawkesbury, 1998.<br>"A thesis presented to the University of Western Sydney for the degree of Doctor of Philosophy, September, 1998" Bibliography: leaves 193 - 219.

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6

Shaw, Michael A. "Studies Towards the First Asymmetric Total Synthesis of a-Cyclopiazonic Acid." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520663.

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7

Craft, Russell S. "A radical cascade approach to the skeleton of α−Cyclopiazonic Acid". Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/39782/.

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3-Nitrophthalic acid 2.04 was transformed into 2.10 in 38% yield. Vinylglycine derivative was synthesised from D-Methionine 2.12 in 42% yield. (For image see abstract in pdf) Compounds 2.10 and 2.16 were coupled using Grubbs' 2nd generation catalyst creating 2.25. Unfortunately attempts to oxidise the benzylic position were unsuccessful. (For image see abstract in pdf) An alternative approach was investigated using diene 2.40 derived from a precursor to 2.10 and allyl bromide 2.35. Attempts to displace bromide under anionic conditions were futile. The use of palladium formed conjugated dieneam

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8

Amoako, Daniel Kwasi. "Cyclopiazonic acid changes the mode of excitation-contraction couplingin acetylcholine-stimulated bovine tracheal smooth muscle." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B3121387X.

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9

Amoako, Daniel Kwasi. "Cyclopiazonic acid changes the mode of excitation-contraction coupling in acetylcholine-stimulated bovine tracheal smooth muscle /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1865017X.

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10

Mooney, Peter. "Biodegradation of the mycotoxins ochratoxin A, cyclopiazonic acid and fumonisin B1 by natural thermophilic microbial contaminants of self-heated maize." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273335.

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11

Carvajal, Campos Amaranta. "Characterization of Aspergillus section Flavi : molecular markers as tools to unmask cryptic species." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30036/document.

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Certains champignons, notamment des Ascomycètes, peuvent synthétiser des métabolites secondaires toxiques pour les hommes et les vertébrés, appelés mycotoxines. Étant donné que la présence de ces champignons dans les aliments de base constitue un risque potentiel pour la santé humaine et animale, les aliments de base sont éliminés lorsqu'ils sont contaminés. La section Flavi est un des groupes de champignons les plus importants du point de vue économique et sanitaire car il comprend des espèces productrices de mycotoxines. Parmi les mycotoxines produites par ce groupe se trouvent les aflatoxin

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12

Gonçalez, Edlayne. "Distribuição de fungos e de micotoxinas em amostras de amendoim do plantio à colheita." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-22092008-121159/.

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O amendoim é freqüentemente invadido por fungos toxigênicos antes da colheita. Este trabalho teve como objetivos: determinar a micoflora do solo, ar, sementes plantadas, flores, ginóforo e grãos e cascas de amendoim em diferentes fases de maturação e após a secagem; analisar aflatoxinas B1, B2, G1 e G2, ácido ciclopiazônico e fumonisinas B1 e B2 nas sementes plantadas, grãos e cascas de amendoim em diferentes fases de maturação e após a secagem. Os fungos mais freqüentes nos grãos e cascas de amendoim foram Fusarium spp. e Aspergillus flavus. A espécie A. flavus também foi encontrada em amostr

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13

Reis, Tatiana Alves dos. "Micobiota e ocorrência de micotoxinas em amostras de castanha-do-Brasil provenientes de diferentes estados brasileiros." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-30062014-161056/.

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O objetivo deste estudo foi avaliar a presença de fungos e micotoxinas [aflatoxinas e ácido ciclopiazônico (ACP)] em amostras de castanha-do-Brasil coletadas em diferentes estados da região Amazônia brasileira: Acre, Amazonas, Amapá e Pará. Um total de 200 amostras de casca e 200 amostras de amêndoa foram semeadas em ágar Aspergillus flavus-parasiticus para pesquisa da micobiota. As micotoxinas foram analisadas por cromatografia líquida de alta eficiência. A morfológica clássica e a análise molecular revelou a presença dos seguintes fungos, em ordem decrescente de frequência: Phialemonium spp.

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14

Harrison, Duncan. "A comparison of the farnesyl pyrophosphate and B-cyclopiazonic acid synthases from penicillium cyclopium." Thesis, 2015. http://hdl.handle.net/10539/16734.

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15

Govender, Urishani. "Concurrent analysis of the mycotoxins, cyclopiazonic acid, moniliformin and ochratoxin A using capillary zone electrophoresis." Thesis, 2000. http://hdl.handle.net/10321/2732.

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Submitted in partial fulfillment of the requirements for the degree of Masters in Technology in Chemistry, M.L. Sultan Technikon, 2000.<br>Mycotoxins are a group of natural poisons produced by certain strains of fungal species when they grow under favourable conditions on a wide variety of different substrates. These toxins have been implicated in a wide range of acute diseases in man and animals. Their toxic effects include oesophageal cancer and liver diseases in humans, and carcinogenic effects in experimental rats and poultry. Hence, there is a need to monitor toxin levels in food commodit

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16

HSIANG-CHENG, LIU, and 劉憲正. "Effects of SR Ca2+ Pump Inhibitor Cyclopiazonic Acid on the Electromechanical Activity of Human and Hamster Myopathic Ventricular Myocardium." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/73217383054153494937.

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碩士<br>國防醫學院<br>藥理學研究所<br>89<br>1. Aims: (1) To investigate the role of the sarcoplasmic reticulum ( SR ) in the abnormal force development of the Syrian hamster model in late stage of cardiomyopathy (39~43 week-old). (2) We studied the role of SR by evaluating the change in twitch force after a rest interval as the change in force is believed to be a function of Ca reuptake into the terminal cisternae of the SR. Furthermore, we used a SR Ca2+ reuptake inhibitor ( cyclopiazonic acid, CPA ) to unmask an abnormal Ca2+ uptake by the SR. (3) To evaluate whether and to what extent the r

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17

Soares, Célia Maria Gonçalves. "Characterization of the mycoflora and the occurrence of mycotoxins in Portuguese maize." Doctoral thesis, 2012. http://hdl.handle.net/1822/21478.

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Tese de doutoramento programa doutoral em Engenharia Química e Biológica<br>The reduction of yield, quality, and nutritional value of grain cereals by filamentous fungi and subsequent contamination with mycotoxins is of great concern around the world. Mycotoxins are known to cause serious health problems in animals and some mycotoxins such as aflatoxins, fumonisins and ochratoxins, in particular, have also been associated with human health problems. Aflatoxins, fumonisins and ochratoxin A produced by several Aspergillus species are prominent among the mycotoxins associated to maize econo

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