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Rozprawy doktorskie na temat „Antioxidant potential”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 26 lipca 2025

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1

Scott, Brigitte Clare. "Analysis of the antioxidant action of potential food antioxidants and therapeutic agents." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338445.

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Sirdaarta, Joseph P. "Phytochemical Study and Anticancer Potential of High Antioxidant Australian Native Plants." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/365567.

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High antioxidant capacities have been linked with a reduction in the incidence of chronic diseases including cardiovascular disease, diabetes, obesity, neurodegeneration, inflammation and cancer. Furthermore, phenolic antioxidants may not only have protective effects against these diseases, but may also have therapeutic potential in reversing them by modulation of the cellular redox state. Thus, plants with high antioxidant capacities have potential in the development of new chemotherapeutic treatments to prevent and treat some cancers. Several native Australian plant species including Termin

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Bright, David Renfrew. "A study of the antioxidant potential of speciality malt." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/516.

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Queiroz, Yara Severino de. "Efeito do processamento do alho (Allium sativum L.) sobre os seus compostos bioativos e potencial antioxidante in vitro e in vivo." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/6/6138/tde-24022011-113506/.

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Introdução: O aumento do consumo de frutas e hortaliças está associado à redução do risco de ocorrência de doenças crônicas não transmissíveis. Este efeito protetor tem sido atribuído particularmente à presença de vários compostos bioativos como compostos fenólicos e organosulfurados, além de fitosteróis presentes no alho que podem contribuir com os efeitos antioxidante e hipolipemiante. Porém, o processamento do alho pode acarretar mudanças na quantidade e na efetividade dos compostos bioativos. Este trabalho teve como objetivo avaliar se a cocção e a fritura do alho reduziram as concentraçõe

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Blackhurst, Diane Mary. "Potential health benefits of antioxidant effects of wine on lipids." Doctoral thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/3363.

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Includes bibliographical references.<br>The consumption of wine dates back to the Stone Age, but its potential health benefits only really began to make an impact after the French Paradox was postulated by Renaud and de Lorgeril in the 1990s. Their observations indicated that moderate consumption of red wine may have health benefits. Research since then has shown that wine, in particular red wine, is a source of a large number of different polyphenolic compounds that have antioxidant activity. The finding that the consumption of red wine might have a beneficial health effect was very appealing

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Wardhani, Dyah Hesti. "Bioprocessing alternatives to promote the functionality and antioxidant potential of soybeans." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500484.

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Youdim, Kuresh Aaron. "Potential beneficial effects of thyme oil and thymol on aspects of ageing processes." Thesis, University of Strathclyde, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310179.

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8

Da, Silva Juliana Kelly 1987. "In vivo antioxidant potential of passion fruit (Passiflora Edulis) peel = Potencial antioxidante in vivo da casca do maracujá (Passiflora Edulis)." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255068.

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Orientador: Mário Roberto Maróstica Júnior<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-21T23:59:26Z (GMT). No. of bitstreams: 1 Silva_JulianaKellyda_M.pdf: 1332113 bytes, checksum: e1dba8a206478de60e1e2656d6154548 (MD5) Previous issue date: 2013<br>Resumo: O maracujá (Passiflora edulis) é uma variedade cultivada no Brasil, destinada principalmente à indústria de suco, mas seu processamento gera muitos resíduos. Estes subprodutos podem ser fontes de compostos bioativos, atuando na prevenção e tratam

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9

Tierney, Michelle. "Investigation of macroalgal polyphenols and peptides with potential antioxidant and antihypertensive activities." Thesis, Bangor University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664510.

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Macroalgal phlorotannins and peptides are increasingly being investigated for their health-promoting properties; however in-depth research into the occurrence, bioactivity, profiling and molecular properties of these components in Irish species is limited. The process by which bioactives are extracted and purified from their original biomass must be efficient and food-friendly to be applicable to the food industry. Two different extraction methods, solid-liquid extraction (SLE) and pressurised liquid extraction (PLE), were compared for the extraction of polyphenols from three brown macroalgae,

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Castro, Marin Antonio <1990&gt. "Use of chitosan as a potential antioxidant alternative to sulfites in oenology." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8984/1/PhD%20thesis_Antonio%20Castro%20Marin.pdf.

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In the present PhD thesis work, the efficacy of chitosan, a natural polysaccharide, as a potential antioxidant alternative to the use of sulphur dioxide (SO2) in oenology was studied. For this purpose, a preliminary characterization of the antioxidant properties of chitosan was carried out. Using the Electron Paramagnetic Resonance (EPR) technique, the antiradical capacity of chitosan against hydroxyl (·OH), or 1-hydroxyethyl (1-HER) radicals, was evaluated. On the other hand, by the application of HPLC, the effect of chitosan on compounds related to oxidation, such as glyoxylic acid and ace

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11

D'Angelo, Costantino. "Evaluation of anti-proliferative and antioxidant potential of tomato extract against melanoma." Doctoral thesis, Università di Siena, 2021. http://hdl.handle.net/11365/1133306.

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Abstract Melanoma is a form of skin cancer occurring prevalently, in fair-skinned and lighthaired person; its incidence is constantly increasing and in Italy is the second most frequent cancer males under 50 and third most frequent in female under 50 years. Increasing evidences are demonstrating that antioxidants from vegetables have both antriproliferative activity and ratio-sensiting property on cancer cell. Here, we will investigate the anti-proliferative and ratio-sensitizing potential of polyphenolic fraction from different tomato cultivars in melanoma cells lines. Aim of this

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12

Matos, Melanie S. "Exploring the potential of natural extracts obtained from winemaking waste streams for cosmetic applications." Master's thesis, Universidade Nova de Lisboa, Instituto de Tecnologia Química e Biológica António Xavier, 2017. http://hdl.handle.net/10362/79299.

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"Phenolic compounds present in grapes have been widely explored as cosmetic principles, because of their renowned antioxidant activity and proven ability to directly inhibit certain enzymes relevant for skin ageing. The winemaking process generates large amounts of waste streams, thus recovery of phenolic bioactive compounds from residues and further incorporation in cosmetic products represents a promising market opportunity for wine producers, and may contribute to a sustainable development of the sector.(...)"<br>N/A

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QUILEZ, MOLINA ANA ISABEL. "Functional and antioxidant bio-based polymer composites with potential applications in food packaging." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1042609.

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The inadequate management of plastic wastes, along with the low biodegradability of conventional petroleum-based polymers, has led to a global climatic crisis. A potential solution is the substitution of these ordinary polymers by bioplastics, which production or management present a low impact on the environment. Moreover, revalue agro-food wastes to create new biocomposites is a good strategy to improve waste disposal with economic benefits. Adding agro-food wastes into a polymer matrix can also provide several enhancements to the final biocomposite, such as the reduction of the percentage o

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14

Santos, Gerusa Matias dos. "ContribuiÃÃo da vitamina C, carotenÃides e compostos fenÃlicos no potencial antioxidante de produtos comerciais de aÃaÃ e cupuaÃu." Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1490.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Um dos setores que vem mostrando constante crescimento Ã o de frutas frescas e seus derivados, pois estas alÃm de alimentar apresentam certos constituintes que podem auxiliar como coadjuvantes na prevenÃÃo de certas doenÃas. Um desses constituintes sÃo os chamados antioxidantes, que vÃm despertando grande interesse tanto para os consumidores quanto para a comunidade cientÃfica pelos provÃveis efeitos benÃficos que podem trazer Ã saÃde. A AmazÃnia possui um patrimÃnio riquÃssimo em biodiversidade, e devido a esse fato, el

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15

Harris, Grant G. "Antioxidant Capacity of Pawpaw Pulp Extracts from Different Levels of Ripeness." Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212683978.

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Ristilä, Mikael. "Vitamin B₆ as a potential antioxidant : a study emanating from UV-B-stressed plants /." Örebro : Örebro universitet : Örebro universitetsbibliotek, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-625.

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Obliers, Miriam. "Novel small molecule modulator of the antioxidant response pathway : potential for therapy in inflammatory diseases/cancer." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231076.

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Chong, Kok Leong. "The validation of profluorescent nitroxides as potential probes to monitor mitochondrial oxidative stress." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/92513/1/Kok%20Leong_Chong_Thesis.pdf.

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In cells, the balance of oxidation and reduction reactions (redox chemistry) plays a significant role in key biological processes such as cell signaling, cell fate determination and the body's defence systems, all of which contribute significantly to the overall well-being of the body. This project served as a step forward in developing a more efficient method to monitor mitochondrial redox status. The method is based on the application of profluorescent nitroxides (PFN) that change in fluorescent intensity based on changing mitochondrial redox status. A major impact of this project is to faci

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19

Wang, Xiaoxi. "Evaluation of Antioxidant Properties of Native Utah Berries and Their Potential for Use in Meats." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7331.

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In industry, antioxidants are added to prevent changes that affect quality due to oxidation, such as the development of off flavors, unacceptable odors and discoloration. New resources that are familiar to consumers and may work as antioxidants should be studied. The changes in antioxidant activity were determined for four freeze-dried native wild berry powder species in Utah, including skunkbush (Rhus trilobata), chokecherry (Prunus virginiana), river hawthorn (Crataegus douglasii) and silver buffaloberry (Shepherdia argentea), during cold storage (-20 °C) for 6 months. The total antioxidant

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20

Cowan, Elizabeth Alice. "An investigation of the therapeutic potential of phenylaminoalkyl selenides through mechanistic and biological studies and an exploration of ciber: the center of innovative biomaterial education and research." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42937.

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The overproduction of reactive oxygen species (ROS) have been linked to diseases and other pathologies. As therapeutic agents, antioxidants have been tested and some shown to attenuate these diseases by relieving oxidative stress. The May laboratory has previously developed a family of phenylaminoalkyl selenides and has demonstrated the antihypertensive and antioxidant properties of these compounds. To further understand the antioxidant property of these selenide compounds, the two step mechanism of the reaction between the selenoxide form and glutathione was investigated by stopped-flow and

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21

Guarda, Inês Rodrigues. "Assessment of the bioactive and nutritional potential of novel food products enriched in Cystoseira abies-marina and Skeletonema sp. biomass." Master's thesis, ISA, 2019. http://hdl.handle.net/10400.5/19527.

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Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia<br>Micro and macroalgae are photosynthetic organisms of large abundance and diversity that contain a variety of compounds with high bioactivity and nutritional value. These compounds have been receiving an increasing interest of researchers due to their potentially positive effect on human health. This has also led to the development of applications for algal biomass, ranging from animal feed to cosmetics, pharmaceuticals, and functional foods. The use of algae biomass in the food industry is still a new concept with the potent

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22

FABBRI, Martina. "Design and synthesis of potential cardioprotective agents targeting mitochondria." Doctoral thesis, Università degli studi di Ferrara, 2023. https://hdl.handle.net/11392/2504897.

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Despite recent advances and success in interventional coronary reperfusion strategies, acute myocardial infarction (MI) is recognized as one of the most frequent forms of ischemic heart disease and one of the leading causes of death in Western countries. The so-called reperfusion injury (RI) contributes for up to the 50% of the final infarct size, thus restricting the efficacy of primary percutaneous coronary intervention. Rising data indicate that the onset of RI involves several molecular and cellular factors that culminate in the final opening of a large pore in the mitochondrial membrane,

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Alonis, Melenie Lee. "Selenotrisulfide Derivative of Alpha-Lipoic acid: Evaluation in a Cell Culture Model for Potential Use as a Topical Antioxidant." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3451.

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Selenium is a required micronutrient in mammalian cells. It is incorporated in the form of selenocysteine into selenoenzymes such as glutathione peroxidase and thioredoxin reductase, and is absolutely required for activity. Thioredoxin reductase is necessary for reduction of oxidized thioredoxin and therefore plays a major role in maintaining the redox status of the cell. Glutathione peroxidase is responsible for reducing peroxides into their corresponding alcohols and water. Together, these selenoenzymes constitute a significant part of the cell's arsenal to defend itself against oxidative st

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24

Realini, Giulia. "N-acetyl-L-cysteine ethyl ester (NACET) as a potential therapeutic strategy for the prevention and treatment of Age-related Macular Degeneration." Doctoral thesis, Università di Siena, 2022. http://hdl.handle.net/11365/1203143.

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Age-related macular degeneration (AMD) is a multifactorial progressive chronic ocular disease. Genetics, environmental insults, and age-related issues are risk factors for the development of the disease. Dysfunction of retinal pigment epithelium (RPE) is involved in AMD and oxidative stress in RPE is one of the major causes of the etiopathogenesis of AMD. Therefore, the introduction of antioxidants may represent one of the most effective ways to delay the onset of AMD. Glutathione (GSH) is a key player in the detoxification of xenobiotics, their metabolites and of reactive oxygen species (ROS)

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Mulholland, Clive William. "Some studies on antioxidant synergistic interactions and the total free radical trapping potential (TRAP) of plasma." Thesis, University of Ulster, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357757.

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SUCAMELI, MARZIA. "Antioxidant and Antiviral potential against SARS-CoV-2 of citrus limonoids isolated from Grapefruit Seed Extracts." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1057597.

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The COVID-19 pandemic represented an unprecedented global emergency. Despite all efforts, COVID-19 remains a threat to public health, due to the complexity of mass vaccination programs, the lack of effective drugs, and the emergence of new variants. A link has recently been found between the risk of developing a severe COVID-19 infection and a high level of oxidative stress. In this context, we have focused our attention on natural compounds with the aim of finding molecules capable of acting through a dual antiviral / antioxidant mechanisms. In particular, we studied the potential of grapefru

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Marques, Marcel Benedete. "Avaliação de biomarcadores séricos do estresse oxidativo e do potencial antioxidante em pacientes renais crônicos submetidos ao tratamento hemodialítico /." Araraquara, 2019. http://hdl.handle.net/11449/192425.

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Orientador: Amanda Martins Baviera<br>Resumo: No Brasil, o número de indivíduos com doença renal crônica (DRC) em terapia dialítica no ano de 2017 foi de aproximadamente 127 mil indivíduos; dentre estes, 92% realizavam hemodiálise (HD). A HD tem como principal objetivo a remoção dos solutos urêmicos e assim a redução dos sintomas relacionados à síndrome urêmica, melhorando a qualidade de vida do indivíduo com DRC. No entanto, aumentam as evidências de que a HD seja um fator exacerbante do estresse oxidativo, via aumento na produção de espécies reativas de oxigênio devido à ativação de leucócit

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Oliveira, Irvila Ricarte de. "Study of variability chemistry and pharmacological potential by specimens of Senna from Northeast." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15344.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Este trabalho relata o perfil quÃmico e farmacolÃgico de quatro espÃcies do gÃnero Senna Mill. â Senna gardneri, Senna georgica, Senna splendida e Senna macranthera var. pudibunda. Este estudo permitiu identificar 38 compostos diferentes de vÃrias classes, com destaque para os flavonoides, dentre os quais: galocatequina, epigalocatequina, (2R*,3S*,4S*,2ââR*,3ââS*)-guibourtinidol-(48)-catequina, quercetina glicoarabinose, taxifolina, isoramnetina, procianidina B1, miricetina e di-hidromiricetina. Todos esses compos

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Becker, Magda Marcia. "Characterization of native fruits of the amazon region and development of an amperometric biosensor for determination of antioxidant capacity." Thesis, Perpignan, 2019. http://www.theses.fr/2019PERP0024/document.

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La consommation de fruits est encouragée pour leur apport de composés bioactifs naturels. Ce travail a pour objectif de caractériser dix fruits indignes de la région amazonienne. La caractérisation a été effectuée initialement par des analyses bromatologiques, suivies de la détermination des minéraux Ca, Cu, Fe, Li, Mg, Mn, Na et Zn par spectrométrie d'émission optique ˆ plasma couplé par induction (ICP OES). Ensuite, la capacité antioxydante des fruits a été évalué à l'aide de différentes méthodes colorimétriques (DPPH, ABTS et NBT), ainsi que l'activité antiproliférative contre la lignée ce

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Ansell, Peter James. "Regulation of the antioxidant response element by estrogens : a potential mechanism to help explain estrogen-induced cancer? /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137674.

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Shan, Bin, and 單斌. "Antioxidant and antibacterial capacities of spice and medicinal herb extracts and their potential application as natural foodpreservatives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B4098784X.

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Subba, Arunika. "Pharmacognostic evaluation and in vitro antioxidant potential of some ethnomedicines used by traditional practitioners of West Sikkim." Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4660.

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Moccia, Stefania. "In vitro effects of bioactive extracts of local Italian cultivars: from molecular mechanisms to potential nutraceutical applications for consumers’ well-being." Doctoral thesis, Universita degli studi di Salerno, 2017. http://hdl.handle.net/10556/2622.

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2015 - 2016<br>Phytochemicals are non-nutritional compounds, naturally present in food and beverages, which exert beneficial effects on human health. The present Doctorate Thesis evaluates the biological properties of bioactive extracts prepared from Italian cultivars/products on different in vitro models to test their ability to ameliorate conditions of cellular oxidative stress, often associated with the occurrence of degenerative pathologies, such as cancer and neurodegenerative processes. The two classes of biomolecules investigated, polyphenols and carotenoids, are largely prese

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Okeleye, Benjamin Ifeoluwa. "Studies on the antimicrobial, antioxidant and antiproliferative potential of the ethyl acetate extract and compounds of Peltophorum africanum." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1016165.

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Cells are constantly exposed to a variety of oxidizing agents, some of which are necessary for life. Oxidants produced in excess can cause an imbalance, leading to oxidative stress, especially in chronic bacterial, viral, and parasitic infections. This can result to damage of biomolecules such as lipids, proteins, and DNA, hence, an increased risk for cancer. Plants have a long history of use in the treatment of cancer. Plant secondary metabolites have proved to be an excellent reservoir of new medical compounds. Fruits, vegetables, and whole grains contain a wide variety of antioxidant phytoc

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Bizimenyera, Edmund Senkike. "The potential role of antibacterial, antioxidant and antiparasitic activity of Peltophorum africanum Sond. (Fabaceae) extracts in ethnoveterinary medicine." Thesis, University of Pretoria, 2007. http://hdl.handle.net/2263/26331.

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There is an increasing interest in ethnomedical and ethnoveterinary practices, especially as it relates to the use of medicinal plants for treating various ailments. As a result, the current trend in government health authorities is to integrate herbal medicine with primary healthcare. This arises because nearly 80% of people in the developing world, particularly those from rural communities where modern drugs are unaffordable, inaccessible or, unavailable, depend on phytomedicine for primary healthcare. Despite this, however, most medical and veterinary professionals distrust herbal medicines

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Shan, Bin. "Antioxidant and antibacterial capacities of spice and medicinal herb extracts and their potential application as natural food preservatives." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B4098784X.

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Gregg, Alison Dianne. "The design and synthesis of potential dual action cardioprotective agents acting at adenosine receptors." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16629/.

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Adenosine and adenosine analogues are recognised as cardioprotective agents due to the responses that they induce through the activation of myocardial adenosine receptors. Antioxidants such as nitroxide radicals have also been found to possess cardioprotective properties in biological systems, namely through their ability to scavenge the oxygen-based free radicals that are potentially damaging to tissues and cells. It was envisaged that the linking of an antioxidant moiety to adenosine would produce an adenosine analogue that activates adenosine receptors and also scavenges oxygen-derived fre

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Kanase, Nilesh. "The impact of oxidative stress and potential antioxidant therapy on function and survival of cultured pancreatic β-islet cells". Thesis, University of the Highlands and Islands, 2011. https://pure.uhi.ac.uk/portal/en/studentthesis/the-impact-of-oxidative-stress-and-potential-antioxidant-therapy-on-function-and-survival-of-cultured-pancreatic-islet-cells(ec0cd703-3902-4410-8c58-e7c7e49f33e7).html.

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Dietary antioxidant curcumin derived from turmeric has been suggested to decrease the risk of many chronic diseases. Much of the existing data for curcumin stem from experiments performed at supra-physiological concentrations (μM-mM) that are impossible to attain through oral ingestion. It was therefore hypothesized that curcumin at low plasma achievable concentration, though itself not acting as a direct antioxidant might up-regulate the intracellular antioxidants and thus helping combat oxidative stress and protect β-islet cells. The results indicated that Curcumin, DMC and BDMC were able to

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39

Barčytė, Toma. "Substratų įtaka bastutinių šeimos mikrožalumynų antioksidaciniam aktyvumui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_110837-34031.

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2012 m. gegužės mėn. Lietuvos agrarinių ir miškų mokslų centro Sodininkystės ir daržininkystės instituto Augalų fiziologijos laboratorijoje tirta aukštapelkių durpių, ceolito, kokoso ir vermikulito substratų įtaka bastutinių šeimos mikrožalumynų antioksidaciniam aktyvumui. Darbo objektas – skirtinguose substratuose auginti kaliaropių ‘Delicacy Purple’ (Brassica oleracea ‘Delicacy Purple’), garstyčių ‘Red Lion’ (Brassica juncea ‘Red Lion’), kiniškų kopūstų ‘Rubi’ (Brassica rapa ‘Rubi’ ), ridikėlių ‘Rioja Improved’ (Raphanus sativus ‘Rioja Improved’) mikrožalumynai. Darbo metodai: Spektrofotomet

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Matrose, Albertina Neliswa. "Evaluation of the antioxidant and anti-diabesity potential of cyclopia maculata using in vitro non-cell based screening models." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/4262.

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Masters of Science<br>The aim of this study was therefore to evaluate the antioxidant and anti-diabesity potential of a hot water extract of C. maculata in non-cell based assays and correlate the activities with phenolic composition. Total antioxidant capacity (TAC) was assessed in terms of free radical scavenging and iron reducing ability. The DPPH, ABTS, ORAC and FRAP assays were employed. Anti-diabesity potential was assessed in terms of the inhibition of the digestive enzymes, α-glucosidase and pancreatic lipase

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Ahmad-Qasem, Mateo Margarita Hussam. "ASSESSMENT OF THE INFLUENCE OF PROCESSING CONDITIONS ON THE ANTIOXIDANT POTENTIAL OF EXTRACTS OBTAINED FROM OLIVE OIL INDUSTRY BYPRODUCTS." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/53452.

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[EN] The main goal of this Thesis was to determine the influence of the main processing stages involved in obtaining natural extracts with high antioxidant potential from byproducts originating in the olive oil industry. Firstly, the effect of freezing and/or the drying methods applied to olive oil byproducts on the polyphenol content and antioxidant capacity of the extracts subsequently obtained was addressed. For this purpose, two byproducts were considered: olive leaves and olive pomace. Secondly, the feasibility of intensifying the extraction of olive leaf polyphenols by means of a new te

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Chioggia, Francesco. "Study on health status and remediation potential of Phragmites australis employed in an Emilia Romagna (IT) Constructed Wetland to assess zonal variability of the facility." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23742/.

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Phragmites australis (Cav.) Trin. ex Steud. is a hydrophyte particularly resistant to harsh conditions, e.g. drought, high salinity, contaminants, such as heavy metals and toxic molecules, and high nutrients concentrations. These resistances render the plant suitable for water depuration, where its particular metabolism is exploited to remove pollutants and excessive nutrients from the environment. In constructed wetlands, this principle is applied to phyto-purify wastewater with various origins, such as industrial, agricultural and household, with the aim to improve its quality to an extent w

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Oliveira, Neto Jerônimo Raimundo de. "Potencial antioxidante e atividade vasodilatadora de cervejas comerciais." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/8798.

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Maciel, Olívia Maria Campanini. "Avaliação do potencial fotoprotetor e identificação de metabólitos secundários do fungo endofítico Annulohypoxylon stygium associado à alga marinha Bostrychia radicans." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-01062016-152033/.

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Os organismos marinhos constituem uma fonte potencial de metabólitos secundários biologicamente ativos. Neste contexto, os micro-organismos isolados de algas marinhas, dentre eles fungos endofíticos, representam alvos para a pesquisa de novas substâncias com potencial farmacológico pronunciado. Substâncias naturais provenientes de espécies de fungos associados às algas marinhas vêm sendo bastante utilizadas em formulações fotoprotetoras devido à ação antioxidante e ao potencial contra a radiação solar. Deste modo, o presente trabalho teve como objetivo a investigação biológica e química dos fu

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Lugato, Danielle Simone de Carvalho. "Cultura de tecidos e análise do potencial antioxidante de Passiflora alata Curtis." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=4598.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Passiflora alata Curtis, comumente conhecida como maracujá-doce, é uma das espécies do gênero Passiflora cultivadas comercialmente, sendo consumida in natura devido ao seu gosto adocicado. Ela também é utilizada em todo o mundo como ornamental e na medicina popular. O objetivo deste trabalho foi o estabelecimento de diferentes estratégias para a cultura in vitro de P. alata e a análise da produção de substâncias antioxidantes nos materiais obtidos in vitro, em comparação com as plantas in vivo. Diferentes tratamentos visando à queb

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Soares, Bianka de Oliveira. "Micropropagação e avaliação da potencialidade genotóxica de Petiveria alliacea L." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=5175.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Petiveria alliacea L. é uma planta pertencente à família Phytolaccaceae, conhecida popularmente no país como guiné, erva-de-alho, erva-tipi ou amansa-senhor. Nativa da Região Amazônica tem sido cultivada em muitas áreas tropicais com propósito medicinal ou ritualístico. O objetivo desse trabalho foi (i) o desenvolvimento e a multiplicação de plantas de P. alliacea L. através de métodos de cultura de tecidos, e monitoramento fitoquímico das culturas, e (ii) avaliação comparativa das potencialidades genotóxica e antigenotóxica entre

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SERRA, ELENA. "Design, Synthesis, Characterization and Investigation of Structure-Activity Relationships on Antioxidants and/or UV Filtering Properties of New Potential Sunscreen Molecules." Doctoral thesis, Università degli studi di Ferrara, 2020. http://hdl.handle.net/11392/2487895.

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Il mio lavoro di dottorato nasce da una collaborazione tra l’Universita’ di Ferrara e il centro ricerche Aptuit, (presso Verona) avendo come tutor rispettivamente il Prof. Stefano Manfredini e il Dr. Daniele Andreotti. I raggi UV (ultravioletto) sono responsabili della maggior parte degli effetti cutanei causati dal sole quali invecchiamento precoce, tumore della pelle, melanoma,etc. Esistone diversi strumenti per proteggersi durante l’esposizione dagli effetti dannosi di tali raggi UVA e UVB, come ad esempio l’utilizzo di cappelli, indumenti di fibre naturali, occhiali da sole, ma anche stru

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Fagieh, Taghreed M. "ICP-MS determination of Zn, Cu, Fe and Mn in muscle cells as potential markers of oxidative stress." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/27011.

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Oxidative stress is imbalance between oxidant and antioxidant levels in living systems. Human cells are protected from reactive oxygen species by endogenous enzymatic antioxidants. Most of these compounds require particular redox metals in their structures as cofactors to allow them to scavenge the free radicals such as Cu, Zn-SOD, Mn-SOD and catalase (Fe). The aim of this study was to quantify these metals in human cells to evaluate their effectiveness as novel biomarkers for measuring oxidative stress. The metals (Zn, Cu, Fe, Mn) were measured in vitro in skeletal muscle cells (C2C12) which

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Rezaee, Nasim. "In vitro assessment to evaluate the potential effects of polyphenol extracts from sorghum on Alzheimer’s disease." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2581.

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Background: Alzheimer's disease (AD) is a progressive neurodegenerative disorder that accounts for most dementia cases. AD is characterised by extracellular deposition of amyloid-β (Aβ) protein plaques and intracellular neurofibrillary tangles (NFTs), composed of hyper-phosphorylated tau. Other common hallmarks of the disease include neuroinflammation, oxidative stress and mitochondrial dysfunction. AD currently affects more than 55 million people worldwide and this number is increasingly growing. It is the second leading cause of death in Australia and the seventh leading cause of death world

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Leal, Valdeni Dias Cerqueira. "Potencial nutricional e atividade antioxidante (in vitro) de frutos silvestres do estado da Bahia." Universidade Estadual de Feira de Santana, 2017. http://tede2.uefs.br:8080/handle/tede/648.

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Submitted by Verena Pereira (verenagoncalves@uefs.br) on 2018-07-12T21:21:51Z No. of bitstreams: 1 DISSERTA??O- POTENCIAL NUTRICIONAL E ATIVIDADE ANTIOXIDANTE (IN VITRO) DE FRUTOS SILVESTRES DO ESTADO DA BAHIA-VALDENI DI~1.pdf: 1484144 bytes, checksum: 520f0ad25aaf65ce9fff95db0ad63eca (MD5)<br>Made available in DSpace on 2018-07-12T21:21:51Z (GMT). No. of bitstreams: 1 DISSERTA??O- POTENCIAL NUTRICIONAL E ATIVIDADE ANTIOXIDANTE (IN VITRO) DE FRUTOS SILVESTRES DO ESTADO DA BAHIA-VALDENI DI~1.pdf: 1484144 bytes, checksum: 520f0ad25aaf65ce9fff95db0ad63eca (MD5) Previous issue date: 2017-12-04<b

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