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Dissertations / Theses on the topic 'Alkaloids and volatile oil'

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Published: 5 June 2025
Last updated: 2 August 2025

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1

Siqueira, Carlos Alberto Theodoro. "Aspectos químicos e atividade antiprotozoária in vitro de Annona coriacea Mart. (Annonaceae)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/9/9138/tde-31012011-140840/.

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Estudos anteriores dos alcalóides totais (AT) de Annona coriacea Mart. (Annonaceae) revelaram atividade antiprotozoária promissora. No presente trabalho, realizou-se o fracionamento biomonitorado dos AT de folha e selecionaram-se duas frações ativas (100% morte), frente às formas promastigotas de Leishmania (L.) chagasi in vitro, para a caracterização dos alcalóides, por CG-EM. Os AT bioativos de caule (100% morte) foram analisados sem fracionamento prévio. Em paralelo, efetuou-se amostragem de três exemplares de A. coriacea, analisados em conjunto, para o acompanhamento da variação do rendime
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2

Hohlemwerger, Sandra Virgínia Alves. "Metabolismo e atividades biológicas de espécies de zanthoxylum do Brasil." Instituto de Química, 2010. http://repositorio.ufba.br/ri/handle/ri/20247.

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Submitted by Ana Hilda Fonseca (anahilda@ufba.br) on 2016-09-01T17:22:47Z No. of bitstreams: 1 Tese Sandra Virginia A. Hohlemwerger.pdf: 5499646 bytes, checksum: 10ad62e0bf160a9a5e0326cba05adb7f (MD5)<br>Approved for entry into archive by Vanessa Reis (vanessa.jamile@ufba.br) on 2016-09-02T16:27:00Z (GMT) No. of bitstreams: 1 Tese Sandra Virginia A. Hohlemwerger.pdf: 5499646 bytes, checksum: 10ad62e0bf160a9a5e0326cba05adb7f (MD5)<br>Made available in DSpace on 2016-09-02T16:27:00Z (GMT). No. of bitstreams: 1 Tese Sandra Virginia A. Hohlemwerger.pdf: 5499646 bytes, checksum: 10ad62e0bf160a9
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3

Sanni, Moshood Olajide. "Well test analysis in volatile oil reservoirs." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/8716.

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This thesis discusses characterization of volatile oil reservoirs using well test analysis. For this purpose, typical well test behaviours were simulated with a one-dimensional single well compositional reservoir model, for different production rates; fluid composition and relative permeability curves, with bottomhole pressures above and below the bubble point pressure. It was found that, when the bottomhole pressure falls below the bubble point pressure during a drawdown, a high gas saturation zone is created around the wellbore with two-phase (oil and gas) flow, whereas single phase (oil) wi
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4

Van, Vuuren SF, and A. M. Viljoen. "Interaction between the non-volatile and volatile fractions on the antimicrobial activity of Tarchonanthus camphoratus." Elsevier, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001729.

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Abstract The contribution of the volatile constituents to the overall antimicrobial efficacy of the medicinal plant Tarchonanthus camphoratus was considered, where different extraction techniques were applied to yield four fractions. These comprised of the essential oil prepared by hydrodistillation, non-volatile constituents prepared by extraction of plant material remaining in the distilling apparatus (having no or negligible volatile constituents), and extracts prepared from fresh and dried plant material having both volatile and non-volatile constituents. The antimicrobial activities of th
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5

Sepcic, Kelly Hall. "Quantification of volatile compounds in degraded engine oil." Diss., Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04072004-180212/unrestricted/sepcic%5Fkelly%5Fh%5F200312%5Fphd.pdf.

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6

Purnomo, Hadi. "Inflow performance relationship for gas condensate and volatile oil wells." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300786.

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7

Yeh, Ju-Ching Cindy. "Anti-angiogenic activities of the volatile oil of Angelica sinensis." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611482.

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8

Braimoh, Lucky Anderson. "Leadership Strategies for Maintaining Profitability in a Volatile Crude Oil Market." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/3866.

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Volatile crude oil prices significantly affect the profitability of crude oil firms. The purpose of this single case study was to explore strategies some crude oil and gas business leaders used to remain profitable during periods of crude oil price volatility. The target population comprised 8 crude oil and gas business leaders located in Calgary, Canada, whose company remained profitable despite crude oil price volatility. The transformational leadership theory formed the conceptual framework for the study. Data were collected through the use of semistructured face-to-face interviews, company
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9

Tokode, Oluwatosin. "Photocatalytic destruction of volatile organic compounds from the oil and gas industry." Thesis, Robert Gordon University, 2014. http://hdl.handle.net/10059/1134.

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Heterogeneous photocatalysis is an advanced oxidation technology widely applied in environmental remediation processes. It is a relatively safe and affordable technology with a low impact on the environment and has found applications in a number of fields from chemical engineering, construction and microbiology to medicine. It is not catalysis in the real sense of the word as the photons which initiate the desired photocatalytic reaction are consumed in the process. The cost of these photons is by far the limiting economic factor in its application. From a technical standpoint, the inefficient
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10

Slaughter, Leeann L. "Antilisterial Characteristics of Volatile Essential Oils." UKnowledge, 2013. http://uknowledge.uky.edu/animalsci_etds/16.

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This study explored the in vitro and in situ antilisterial inhibitory activity of 16 essential oils during indirect exposure: Spanish Basil oil (Ocimum basilicum), Bay oil (Pimenta racemosa), Italian Bergamot oil (Citrus bergamia), Roman Chamomile oil (Anthemis nobilis), Sir Lanka Cinnamon oil (Cinnamomum zeylanicum), Citral, Clove Bud oil (Syzygium aromaticum), Cumin Seed oil (cuminum cyminum), Eucalyptus oil (Eucalyptus globulus), Eugenol, Geranium extract (Pelargonium graveolens), Marjoram oil (Origanum majorana), Neroli extract (Citrus aurantium), Peppermint oil (Mentha piperita L.), Rosem
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11

Collins, Jane E. "Biochemical and physiological investigations of volatile oil production in Monarda citriodora var. citriodora." Thesis, Liverpool John Moores University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337898.

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12

Chakraborty, Sagar Ph D. Massachusetts Institute of Technology. "Exploring volatile fatty acids (VFAs) as a novel substrate for microbial oil production." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98701.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Cost effective production of biofuels depends critically on feedstock cost and availability. As such, volatile fatty acids (VFAs) can play an important role in advancing sustainable biofuel production since they can be derived from low cost feedstock including gases and municipal solid waste. To this end, we studied fermentations of the oleaginous microbe Yarrowia lipolytica engineered for lipid overproduction. With
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13

Oliani, Jocimar. "Estudo químico e avaliação das atividades antiprotozoária e antimicobacteriana in vitro dos alcalóides isoquinolínicos e do óleo volátil de Annona crassiflora Mart. (Annonaceae)." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/9/9138/tde-21032013-144724/.

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Considerando o grave quadro das doenças negligenciadas, no Brasil e no mundo, e as limitações do tratamento empregado, na atualidade, torna-se urgente a pesquisa de novos fármacos, que sejam mais ativos e seguros. Para tanto, a busca de moléculas-protótipo, a partir de espécies vegetais, tem sido importante estratégia. Neste contexto, foi realizado o estudo de Annona crassiflora Mart. (Annonaceae), cujos alcalóides totais (AT) demonstraram promissora atividade antiprotozoária in vitro, em estudo anterior. Em paralelo, outras espécies de Annona mostraram atividade antimicobacteriana in vitro, i
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14

Sales, Gleilton Weyne Passos. "Evaluation of antimicrobial activity and mechanism of action of essential oil extracted from the bark of fruits Hymenaea l. Courbail." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11680.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Jatobà (Hymenaea courbaril l.) has an extensive history of use by natives of tropical forests, its fruits are composed of essential oils, tannins, bitter substances, resinous materials and pectic, starch and sugars. The objective of this study was to evaluate the antimicrobial activity of the essential oil extracted from the peel of fruits of Hymenaea courbaril l. (OEHc) and its mechanism of action on OSSA reference strains S. aureus (S. aureus ATCC 6538P and S. aureus 14458). For the evaluation of antimicrobial activity antimicrob
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15

Wilson, Susan Caroline. "The fate and behaviour of volatile organic compounds and chlorophenols in sewage sludge amended soils." Thesis, Lancaster University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296974.

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16

Chang, Hao Hsun. "Quantitative Changes of Volatile Compound in Soybean and Algal Oil and Effects of Antioxidants on the Oxidative Stability of Algal Oil under Light Storage." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1296496541.

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17

Paulauskienė, Tatjana. "Research of pollution by volatile organic compounds in ambient air and its reduction in oil terminals." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080723_095105-84463.

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This day environment pollution research and modern environment protection technology installation became a prior aspect not only in our country, but also in the whole world. The intensification and development of the industrial processes has a negative impact on human’s health and environment. As a result, it increases waste products accumulation. It also has a disbalance of natural processes and reckless waste of natural resources. All of the above can cause greenhouse effect formation. Because of intensive expansion of energy, in industrial and transportation sectors, there is significant in
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18

VASCONCELLOS, ANTONIO CARLOS MOREIRA DE. "COMPETITIVE ADVANTAGE SUSTAINABILITY OF A FIRM IN VOLATILE ENVIRONMENT PETROBRAS OIL EXPLORATION AND PRODUCTION IN BRAZIL." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2001. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=2185@1.

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A sustentabilidade de vantagem competitiva de uma empresa pode ser analisada por modelos dinâmicos integrativos, considerando-se aspectos estruturais do setor industrial, recursos e competências da firma. Porém, quando os distúrbios no ambiente empresarial são de grande magnitude, esses modelos podem não ser suficientes para explicar o que está ocorrendo e qual estratégia a empresa deve seguir para assegurar sua vantagem competitiva. O meio ambiente empresarial no setor de petróleo, no Brasil, vem passando por distúrbios nos moldes preconizados por Schumpeter (1934, 2000), ou seja, u
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19

Pietrzyk, Julian Darius. "Use of microbial consortia for conversion of biomass pyrolysis liquids into value-added products." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31562.

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Lignocellulosic biomasses are considered promising feedstocks for the next generation of biofuels and chemicals; however, the recalcitrance of lignocellulose remains a barrier to its utilisation over conventional sources. Pyrolysis is the heating of biomass to several hundred degrees Celsius in the absence of oxygen, which can thermally depolymerise lignocellulose. Products of pyrolysis are a solid biochar, liquid bio-oil and syngas. Biochar has roles in both carbon sequestration and soil amendment however bio-oil has no defined use, despite a high concentration of fermentable sugars. Bio-oil
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20

Davis, Brett Murray. "Volatile Organic Compounds and Antioxidants in Olive Oil: Their Analysis by Selected Ion Flow Tube Mass Spectrometry." Thesis, University of Canterbury. Chemistry, 2007. http://hdl.handle.net/10092/3432.

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The application of Selected Ion Flow Tube Mass Spectrometry (SIFT MS) to the analysis of olive oil shows several distinct advantages over more conventional analysis techniques. The two areas described in this thesis examining olive oil quality are the analysis of Volatile Organic Compounds (VOCs) and the assessment of antioxidant activity. VOCs are responsible for the aroma and much of the taste of olive oil, while antioxidants afford some protection from harmful reactions involving radical species inside the body by scavenging radicals when olive oil is ingested. The VOCs of olive oil are use
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21

Misztal, Pawel K. "Concentrations and fluxes of atmospheric biogenic volatile organic compounds by proton transfer reaction mass spectrometry." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4674.

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There are few published direct measurements of the atmosphere-surface exchange of volatile organic compounds (VOCs), particularly for biogenic VOCs (BVOCs). Global modelling of atmospheric chemistry and transport of BVOCs has large uncertainties due to the very small number of measurements in tropical regions, which are responsible for half the global BVOC emissions. This thesis presents direct measurements of concentrations and ecosystem fluxes of BVOCs in different regions (Tropics, Mediterranean) using the approach of virtual disjunct eddy covariance (vDEC) combined with proton transfer rea
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22

Ogunrewo, Olakunle. "Use of two-phase pseudo-pressure for well test analysis of gas condensate and volatile oil below saturation pressure." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24771.

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This study examines the benefits of using two-phase pseudo-pressure in three areas: (1) rate dependent skin analysis; (2) bottomhole backpressure deliverability forecasting; and (3) deconvolution of the pressure transient response of wells producing from gas condensate and volatile oil reservoirs flowing below saturation pressure. The study was carried out with compositional simulations whose results were compared with field data. It was shown that below saturation pressure, single-phase pseudo-pressure analysis of gas condensate and pressure analysis of volatile oil does not correctly estimat
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23

Saucedo, Lucio Alberto [Verfasser], Bernhard [Akademischer Betreuer] Brümmer, Olaf [Gutachter] Korn, and Stephan von [Gutachter] Cramon-Taubadel. "Volatile agricultural markets, how much is oil to blame? / Lucio Alberto Saucedo. Betreuer: Bernhard Brümmer. Gutachter: Olaf Korn ; Stephan Von Cramon-taubadel." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1105760170/34.

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24

Falkenborn, Filip, and Mehdi Lahlou. "Do Correlations Between Macroeconomic Variables and Equity Return Change during Volatile Times? : A statistical Analysis with Focus on the Oil Crisis 2014." Thesis, KTH, Matematisk statistik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169865.

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Every investor place his or her investment with the desire of maximum return with lowest possible risk. To accomplish this desire a good knowledge of how macro variables affect the equity return is important. During the last two decades we have had several crises turning these basics up-side-down. This thesis aims to examine how macroeconomic variables have affected the equity return during stable times and further analyse what impact the recent oil crisis have had on these correlations. This research is limited to only a few selected counties in Europe, namely Germany, Sweden, France, Norway
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25

Saucedo, Lucio Alberto Verfasser], Bernhard [Akademischer Betreuer] [Brümmer, Olaf [Gutachter] Korn, and Stephan von [Gutachter] Cramon-Taubadel. "Volatile agricultural markets, how much is oil to blame? / Lucio Alberto Saucedo. Betreuer: Bernhard Brümmer. Gutachter: Olaf Korn ; Stephan Von Cramon-taubadel." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1105760170/34.

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26

Odukoya, Johnson Oluwaseun. "Influence of bioremediation on the chemical and nutritional composition of produce from crude oil-polluted sites." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/10040.

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The influence of crude oil-contaminated and remediated sites on agrifood production is not clearly understood. To address this knowledge gap, the research was divided into two stages involving: (1) assessment of the efficiency of two bioremediation strategies to support hydrocarbons degradation as well as agrifood production with the initial analysis of the experimental materials, and (2) evaluation of the effect of different crude oil remediation intervention values (CRIV) on selected vegetables (Brassica juncea, Brassica oleracea, Lactuca sativa and two different cultivars of Solanum lycoper
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27

Soares, Krissie Daian. "Avaliação da atividade anti-inflamatória e antioxidante de espécies de Schinus, nativas do Rio Grande do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/164424.

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O uso de produtos anti-inflamatórios e antioxidantes sintéticos representa uma grande preocupação nos dias atuais para a população. Importante destacar alguns aspectos relevantes quanto às dificuldades encontradas no tratamento, como o aumento da resistência aos fármacos e os efeitos colaterais da terapia convencional, que apresenta como consequência o desencadeamento de doenças graves, prejudicando e comprometendo a saúde humana. Os óleos voláteis têm sido alvo na busca de novas substâncias, por apresentarem como potencial fonte de novos agentes antioxidantes e anti-inflamatórios. Dentre as e
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28

Duarte, Marcelo Cavalcante. "Novos diterpenos dos frutos de Xylopia langsdorffiana." Universidade Federal da Paraí­ba, 2009. http://tede.biblioteca.ufpb.br:8080/handle/tede/6768.

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Made available in DSpace on 2015-05-14T12:59:46Z (GMT). No. of bitstreams: 1 parte1.pdf: 2701385 bytes, checksum: ab63dcf6b2d9edc77622ec280f2ca159 (MD5) Previous issue date: 2009-11-13<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Xylopia langsdorffiana (Annonaceae) is popularly known as pimenteira da terra in the Northeast region of Brazil. Previous studies have reported the presence of alkaloids and diterpenes isolated from the leaves and/or stem of X. langsdorffiana. This work aimed to continue the phytochemical study of this species, using its dry and
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Buell, Nancy Rebecca. "Derivitives of petroleum hydrocarbons upon reaction with hydrogen peroxide (H₂O₂) in a laboratory environment." Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-03312008-173255.

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30

AL-Shaer, Mahmoud. "Reversed-Phase HPLC Determination of Citral in Locally Grown Lemon Grass Harvested at Different Season." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etd/2229.

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A simple HPLC procedure for the quantitative determination of citral, the major fragrant component in the lemon grass, has been developed. The procedure involves a C-8 stationary phase using a 90:10 methanol: water pH 5 mobile phase containing 0.25% 1-octanesulfonic acid and an UV detector (set at 233 nm). The lemon grass leaves were harvested fresh at different times of the year and were soaked in methanol for 48 hours without any mechanical assistance to extract the citral and other methanol soluble components. The method showed good reproducibility with relative standard deviation of 2.8% a
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31

Mambri, Ana Paula de Souza. "Lavandula dentata L. SOB O EFEITO DA RADIAÇÃO SOLAR E DE DIFERENTES ÉPOCAS DE COLHEITA." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4908.

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Lavandula genus plants are known by a variety of volatiles and used for centuries in perfumes and medicinal applications. Several species in the world with productive potential, for example, Lavandula dentata L. species grown in many countries which includes Brazil, to aromatic and medicinal purposes. In addition to the diversity of varieties of lavender plants are quite resistant to adverse conditions of weather and temperature. There are many features that differentiate them from their morphological characters to the constitution of their volatile oils that have ecological functions well est
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Cruz, Tatiane Paulino da. "Avaliação da atividade biológica de óleo essenciais sobre Fusarium solani e Meloidogyne enterolobii." Universidade Federal do Espírito Santo, 2013. http://repositorio.ufes.br/handle/10/6560.

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Made available in DSpace on 2016-12-23T14:37:30Z (GMT). No. of bitstreams: 1 Tatiane Paulino da Cruz.pdf: 1055660 bytes, checksum: 58a56273fc2f252688911c2700a070e5 (MD5) Previous issue date: 2013-02-20<br>The decline of guava has been responsible for the eradication of many orchards nationwide, resulting in high economic loss to producers. Due to increasing pressure from society for healthier products, free from chemicals and to increase the importance of essential oils in the management of plant diseases, the aim of this study was to determine the chemical composition and fungitoxic evaluat
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33

Sussa, Fabio Vitorio. "Efeito do manejo agrícola, da sazonalidade e dos elementos traço na produção dos óleos voláteis de erva-cidreira (Melissa officinalis L.)." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-16022017-142812/.

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Este trabalho é um estudo interdisciplinar envolvendo o cultivo de erva-cidreira (Melissa officinalis L.) e sua caracterização química. O objetivo deste estudo foi fornecer informação sobre a adubação orgânica e convencional, a sazonalidade e os efeitos dos elementos traço na produção dos óleos voláteis de Melissa officinalis. O modelo experimental utilizado foi em canteiros com delineamento inteiramente casualizados (DIC) com quatro repetições. Melissa officinalis foi submetida a diferentes sistemas de adubação e época de colheita. A concentração elementar foi determinada pela análise por ati
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Favila, Miguel Antonio Correa. "ESTUDO QUÍMICO E BIOLÓGICO DE Conyza bonariensis (L.) Cronquist (ASTERACEAE)." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/5876.

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Conyza bonariensis (L.) is a native plant of South America, easily found in the south area. It s popular name is buva or margaridinha-do-campo. This plant is very used in folk medicine for rheumatism, gout, cystitis, nephrite, dysmenorrhea, tooth pain, headache. The main secondary metabolits present in the species Conyza bonariensis (L.) were flavonoids, saponins, organics acids, cardyotonic and phenols. In the volatile oil of the var. bonariensis two major constituents were identified, the ester cis-lachnophyllum methyl (78,69%) and ester matricaria methyl (17,67%) present in the roots, and t
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Paulauskienė, Tatjana. "Oro taršos lakiaisiais organiniais junginiais tyrimas ir jos mažinimas naftos terminaluose." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080723_094835-33444.

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Disertacijoje nagrinėjama naftos ir jos produktų garavimo terminaluose problema. Pagrindinis disertacijos tikslas – įvertinti atmosferos taršą lakiaisiais organiniais junginiais (LOJ) naftos terminaluose, nustatyti meteorologinių elementų ir krovos indikatoriaus įtaką LOJ koncentracijos kitimui pažemės atmosferos sluoksnyje. Darbe sprendžiami keli pagrindiniai uždaviniai: ištirti LOJ pasiskirstymą pažemės atmosferos sluoksnyje už naftos terminalų teritorijos skirtingais metų sezonais atsižvelgiant į meteorologinius elementus ir krovos indikatorių; sudaryti skaitinį modelį, leidžiantį prognozuo
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Yamamichi, Erika. "Estudo químico e avaliação da atividade antiprotozoária in vitro do óleo volátil de Lavandula angustifolia Miller (Lamiaceae)." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/9/9138/tde-04102017-170935/.

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O número de pessoas infectadas por protozoários dos gêneros Leishmania e Trypanosoma cruzi, no mundo, permanece preocupante, havendo cerca de 12 milhões de casos de leishmaniose e 7 a 8 milhões referentes à doença de Chagas. Face ao grave quadro destas doenças e às limitações da terapêutica atual, a busca de novos fármacos é urgente. Considerada uma das principais estratégias disponíveis, a pesquisa a partir de espécies vegetais contendo constituintes bioativos é promissora fonte de moléculas potencialmente ativas. Neste contexto, espécies do gênero Lavandula mostraram atividade anti-Leishmani
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Kosmo, Daniele de Fátima. "AVALIAÇÃO DA CITOTOXICIDADE DA FASE VAPOR DO ÓLEO ESSENCIAL DE Jasminum officinale EM CALU-3 (ADENOCARCINOMA DE PULMÃO) E 3T3 (FIBROBLASTOS)." Universidade Estadual de Ponta Grossa, 2017. http://tede2.uepg.br/jspui/handle/prefix/2560.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2018-07-03T18:22:09Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Daniele Kosmo.pdf: 1666129 bytes, checksum: 21d35993408cf04cf3327fefb3c5a4a2 (MD5)<br>Made available in DSpace on 2018-07-03T18:22:09Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Daniele Kosmo.pdf: 1666129 bytes, checksum: 21d35993408cf04cf3327fefb3c5a4a2 (MD5) Previous issue date: 2017-07-07<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O cânc
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Perdones, Montero Ángela. "ANTIFUNGAL CHITOSAN-BASED FILMS AND COATINGS CONTAINING ESSENTIAL OILS FOR FRUIT APPLICATIONS." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/59413.

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[EN] Chitosan films and coatings have been obtained, by incorporating different essential oils (EO) and using different homogenization conditions of the film forming emulsions, in order to obtain antifungal materials for fruit preservation. The effect of oleic acid (OA) on the stability of the initial emulsions and on the film properties was analysed. Coatings were applied to control fungal decay in strawberries. The blending of chitosan with methylcellulose (MC) was also used in coating applications to tomato plants and fruits to prevent fungal infections. The films' functional properties as
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Frescura, Viviane Dal Souto. "Parâmetros fitoquímicos, genotóxicos e de crescimento de alecrim em diferentes salinidades e doses de nitrogênio." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/3243.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Rosmarinus officinalis L., popularly known as rosemary, is a medicinal and aromatic species used in the cosmetics and food processing industries, with interest for the herbal industry. This study aimed to determine the biomass production and volatile oil during the growth of rosemary plants cultivated under different salinity (nutritious solution concentrations) and different nitrogen (N) concentrations, and to evaluate the effect of the extracts and volatile oil of the species on the Allium cepa L. cell cycle and genetic material,
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Deterre, Sophie. "Influence des étapes de production du parfum issu des écorces d’orange amère (Citrus aurantium L. ssp amara) sur la qualité aromatique." Thesis, Paris, AgroParisTech, 2012. http://www.theses.fr/2012AGPT0023/document.

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La liqueur Grand Marnier® produite par la Société des Produits Marnier-Lapostolle (SPML), contient un arôme d'orange amère. Cet arôme, appelé parfum, est obtenu à partir de l'huile essentielle (HE) d'écorces d'orange amère qui ont subi un procédé de macération-distillation. Le but de ce travail de thèse a été de cibler les composés d'arôme clés des écorces d'orange amère et de comprendre leur comportement au cours de la production du parfum, afin de trouver des stratégies d'optimisation. Les axes d'étude ont été les suivants : (1) identification des composés volatils odorants de l'HE et du par
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Buckley-Smith, Marion. "The Use of Solubility Parameters to Select Membrane Materials for Pervaporation of Organic Mixtures." The University of Waikato, 2006. http://hdl.handle.net/10289/2625.

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Pevaporation is a method for separating volatile components from liquid mixtures at ambient temperatures. The paint processing industry uses Hansen solubility parameters (HSP) to indicate polymer solubility. The potential of this method to predict solvent-polymer affinity was investigated for screening potential membrane materials for the pervaporation of a model solution containing linalool and linalyl acetate (major components of lavender essential oil), in ethanol. Published HSP values were collated for various polymers, and statistically analysed to determine variations in HSP values for p
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Menezes, Mariana Santos. "Caracterização química e efeito do óleo essencial de Lippia gracilis e seus constituintes majoritários sobre Aceria guerreronis (Acari: Eriophyidae)." Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/3033.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Lippia gracilis Schauer is a plant that belongs to the Verbenaceae family, is known as “alecrim-da-chapada” or “alecrim-de-tabuleiro”, and occure in the caatinga biome. Because of its bioactive potential, the essential oil of L. gracilis is been tested for control of different agriculture and livestock pests and diseases. One of these pests is the coconut mite, Aceria guerreronis (Acari: Eriophyidae), an important pest of the coconut crop in Brazil. The objective of this study was to evaluate the toxicity and repellency of
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Hussein, Emad Ibraheim. "Investigation into the mechanism(s) which permit the high-rate, degradation of PAHS and related petroleum hydrocarbons in sequencing batch reactors by attached cells in a controlled mixed bacterial community." unrestricted, 2006. http://etd.gsu.edu/theses/available/etd-12012006-073228/.

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Thesis (Ph. D.)--Georgia State University, 2006.<br>Title from title screen. George E. Pierce,committee chair; Eric S. Gilbert, Sidney A. Crow, committee members. Electronic text (135 p. : ill. (some col.)) : digital, PDF file. Description based on contents viewed Aug. 20, 2007. Includes bibliographical references (p. 120-124).
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Zhao, Tianming. "Caractérisations chimiques et biologiques d’extraits de plantes aromatiques et médicinales oubliées ou sous-utilisées de Midi-Pyrénées (France) et de Chongqing (Chine)." Thesis, Toulouse, INPT, 2014. http://www.theses.fr/2014INPT0039/document.

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Les régions de Midi-Pyrénées (France) et de Chongqing (Chine) sont riches en plantes aromatiques et médicinales dites oubliées (ou médiévales). Afin de valoriser pleinement les différentes bio-molécules extractibles de ces plantes, le concept de MAP-raffinerie a été créé et appliqué à une sélection de plantes issues de ces deux régions. Plusieurs technologies d’extraction utilisant l’eau comme solvant vert (hydrodistillation, distillation à la vapeur et extraction par eau sub-critique) ont ainsi été employées et leur impact tant sur la composition des huiles essentielles que sur la récupératio
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De, Rapper Stephanie. "Synergistic interactions of lavender essential oil." Thesis, 2014.

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Thesis (M.Pharm.)--University of the Witwatersrand, Faculty of Health Sciences, 2013.<br>Essential oils are not only used singularly but have been used in combination for many years. There is, however, very little scientific evidence to support the claims made for combined antimicrobial efficacy. With this in mind, a study was designed to investigate the antimicrobial activity of Lavender (Lavandula angustifolia) essential oil, in combination with other essential oils with antimicrobial relevance. The micro-dilution minimum inhibitory concentration (MIC) assay was undertaken, whereby the frac
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Saucedo, Lucio Alberto. "Volatile agricultural markets, how much is oil to blame?" Doctoral thesis, 2016. http://hdl.handle.net/11858/00-1735-0000-0028-87AD-0.

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Torres, López David Enrique. "Enhancing the productivity of volatile oil reservoirs using fluorinated chemical treatments." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-4253.

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Many producing volatile oil reservoirs experience a significant decrease in well deliverability when the bottom-hole pressure of the well falls below the bubble point pressure. This is due to the liberation of a gas phase which resides in the pore space and blocks the flow of the oil phase. This situation is known as "gas blocking". This occurs because the presence of two or three immiscible phases (gas, oil and water) results in a reduction of the oil saturation and a decrease in the oil relative permeability. The main objective of this research was to develop an effective and durable chem
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PENG, GING-YONG, and 彭清勇. "Studies on stability and volatile compounds of squid (Illex argentinus) liver oil." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/81139749632668198480.

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LIN, SHI-MAI, and 林士邁. "Adulteration Study of Peanut Oil Using Analysis of Volatile Components and Fatty Acids." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/d38eek.

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碩士<br>大仁科技大學<br>食品科技研究所<br>105<br>Peanut oil (PO) is well-known for its’ high content of nutrients and strong aroma. Because of this, the price of PO is relatively higher than common oil products and some dishonest manufacturers will mix low-quality oil or artificial flavoring agents with PO to make fake pure PO products. This deceptive behavior not only makes huge illegal profits but also causes the violation of consumer’s rights. Therefore, it is methods to recognize the counterfeit PO products are crucial to be developed. The peanut Tainan #9 was chosen to be the material for making PO and
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CHIANG, ZHENG-HE, and 姜政合. "Effect of Adding Soybean, Sunflower Seed, Cottonseed or Sesame Oil on Volatile Components and Fatty Acid Compositions of Peanut Oil." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6vxkrv.

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碩士<br>大仁科技大學<br>食品科技研究所<br>106<br>Although peanut oil (PO) widely consumed has a high nutrition and unique aroma, few manufacturers may mix a low-quality edible oil or even blend some flavors with pure PO in order to make a better profit. Each food lipid composes of its specific fatty acid profile, thus analyzing the compositions of fatty acids is often used to judge its purity or adulteration. Yet this method may not easy to identify its accurate purity or adulterate if the PO is mixed with a small amount of low-quality food oil. PO has a unique flavor, so the analysis combining fatty acid co
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