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Dissertations / Theses on the topic 'Carotenoids'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Tawata, Natalia. "Determinação de carotenoides em alimentos brasileiros in natura, processados e preparados para a tabela nacional de composição de alimentos." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256123.

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Orientador: Delia B. Rodriguez-Amaya<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-15T02:59:46Z (GMT). No. of bitstreams: 1 Tawata_Natalia_M.pdf: 1734713 bytes, checksum: c645e7426f02ffd742fed5ec2def16c3 (MD5) Previous issue date: 2010<br>Resumo: A biodiversidade brasileira em fontes de carotenóides foi demonstrada no Capítulo 1, focalizando a riqueza dos alimentos brasileiros nativos ou pouco cultivados nos seis carotenóides (alfa-caroteno, B-caroteno, B-criptoxantina, licopeno, luteína e zeaxantina

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2

Foster, Linda Ann. "Intracellular Location of Carotenoid Pigments in Yeast-Phase Cells of Wangiella Dermatitidis and Cell Wall Morphology After Enzyme Treatment." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc798104/.

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Carotenoid pigments in W. dermatitidis, the first pathogenic, dematiaceous fungus in which carotenoid pigments nave been reported, are located primarily (81%) in lipid organelles which floated on the surface of the supernatant fraction of lysed cells. Pigment in this fraction could be extracted with ethyl ether without prior treatment with acetone indicating the pigment is unbound in the lipid organelle. Eight percent remains after exhaustive ether extraction and is recovered after the sample is treated with acetone indicating this fraction is non-covalently bound to proteins in the membranes

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3

Conn, Pauline Frances. "Photophysical chemistry of carotenoids." Thesis, Keele University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315187.

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4

Tsavalos, Alexander John. "Production of microalgal secondary carotenoids." Thesis, Liverpool John Moores University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337891.

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5

Thakkar, Sagar. "PRE-ABSORPTIVE METABOLISM OF CAROTENOIDS." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1244048450.

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6

Koutsos, Elizabeth Allison. "Carotenoids in avian immune systems /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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7

Cobb, Bonnie Finn. "Extracting Carotenoids from Corn Industry Coproducts." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28243.

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Two experiments were completed to develop methods for extracting xanthophylls from corn industry co-products, post fermentation (PF) corn oil and corn gluten meal (CGM). A solid phase extraction (SPE) method was used to fractionate a xanthophyll-rich portion of PF corn oil by varying conditioning and eluting solvents used with a diol SPE column. Conditioning with dichloromethane yielded highest xanthophyll fractionation, 86.5%. The elution solvent selected did not impact fractionation based on a two-way ANOVA. Supercritical fluid extraction of xanthohpylls from CGM was modeled using a Box-Behn

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8

Figueiredo, Bruna Flávia Henriques Tavares. "Carotenoids extraction from the microalga Phaeodactylum tricornutum." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/19136.

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Mestrado em Biotecnologia, ramo de Biotecnologia Industrial e Ambiental<br>Microalgae have been attracting a crescent attention regarding either the potential use of their biomass or the wide range of compounds of interest that they have in their constitution, which can be extracted and applied in several fields of industry, namely carotenoids and in particular fucoxanthin.. Fucoxanthin is a photosynthetic pigment, with numerous applications and benefits, namely in the human healthrelated domains, due to its high antioxidant properties, essential in the prevention and treatment of sever

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9

Lian, Fuzhi. "The anti-carcinogenic effect of carotenoids against lung cancer /." Thesis, Connect to Dissertations & Theses @ Tufts University, 2006.

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Thesis (Ph.D.)--Tufts University, 2006.<br>Submitted to the School of Nutrition Science and Policy. Adviser: Xiang-Dong Wang. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;

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10

Kopec, Rachel Elizabeth. "Bioavalability, Metabolism, and Bioefficacy of Tomato Carotenoids." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354735735.

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11

Branco, Leise Soares Castelo. "ProduÃÃo de carotenoides por linhagens do gÃnero Rhodotorula utilizando glicerol como fonte de carbono." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15881.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O aumento da produÃÃo de biodiesel tem causado um aumento repentino na produÃÃo de glicerol residual, criando um excesso desse produto no mercado. O glicerol pode ser utilizado como fonte de carbono em processos biotecnolÃgicos, incluindo a produÃÃo de carotenoides. Os carotenoides microbianos tÃm sido estudados e seu potencial reconhecido ao longo dos anos. O gÃnero Rhodotorula Ã conhecido por sua capacidade de biossintetizar carotenoides, tais como β-caroteno, toruleno e torularrodina, em diferentes proporÃÃes. Es

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12

Hansen, Christine S. "Construction of galactose assimilating, carotenoid producing yeasts by protoplast fusion." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27935.

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Protoplasts were prepared from two yeast strains P. rhodozyma (ATCC 24202) and K. fragilis (ATCC 8455). Protoplasts prepared from P. rhodozyma were facilitated by prior growth of the cells in a media containing S-(2-aminoethyl)-L-cysteine. Protoplasts from these two yeast genera were fused either by the use of electrofusion or polyethylene glycol treatment. Stable carotenoid producing cell lines were selected by growth at 30°C on yeast nitrogen base plus galactose. Selected single fusants display taxonomic characteristics common to both genera with a cellular morphology and a carotenoid compo

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13

Thorogood, Rose. "Colour, carotenoids and the evolution of parental care." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608802.

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14

Pires, Marina Gagliardo. "Enriquecimento de norbixina por processos físico-químicos a partir de bixina de sementes de urucum (Bixa orellana L.) e avaliação da atividade antioxidante e antibacteriana in vitro." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-13032019-173209/.

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Com a demanda cada vez maior por corantes alimentícios não tóxicos e sustentáveis, fontes naturais têm emergido como uma potencial alternativa aos corantes sintéticos artificiais. O urucum, planta tropical, tem sido cada vez mais explorado para suprir as demandas por corantes naturais, visto que sua semente apresenta uma alta concentração de carotenoides com poder colorífico. O Brasil que já era grande produtor de urucum tem sido destaque na produção de suas sementes para extração de pigmentos, devido à alta na demanda por corantes de origem natural. Das sementes do urucum é possível a extraçã

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15

Morelli, Luca. "Exploring an artificial chromoplast system for enrichment of plant leaves in isoprenoid vitamins." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673839.

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Los isoprenoides son una de las familias más grande de metabolitos en la naturaleza y son especialmente diversos en el reino vegetal. Entre ellos, los carotenoides, los tocoferoles y la filoquinona tienen un interés especial por su papel como vitaminas. Las plantas sintetizan estos compuestos en cloroplastos para contribuir a la fotosíntesis y fotoprotección. En el caso de los carotenoides, sus niveles más altos se encuentran en plastos especializados llamados cromoplastos, que se encuentran típicamente en órganos pigmentados no verdes como pétalos de flores y frutos maduros, pero solo ocasion

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16

Bai, Chao. "Mechanistic investigations of carotenoid and ketocarotenoid biosynthesis in rice." Doctoral thesis, Universitat de Lleida, 2014. http://hdl.handle.net/10803/400382.

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El meu programa de recerca està enfocat a identificar els passos limitants de la biosíntesi de carotenoids en arròs (Oryza sativa) de forma que mitjançant enginyeria genètica amb múltiples gens es puguin dividir els passos i elucidar el mecanisme de acumulació de la pro-vitamina A i dels carotenoids en arròs, un cereal molt important en alimentació. Per tal d’assolir el meus objectius, he generat varies línies transgèniques de arròs que expressen combinacions específiques de gens diferents. Las plantes transgèniques presenten perfils carotenogènics diferents en funció de la combinació dels gen

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17

Lutnæs, Bjart Frode. "Chemical and Spectroscopic Studies of Carotenoids and Related Compounds." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for kjemi, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-244.

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Structure elucidation of charge delocalised carotenoid mono- and dications by NMR and VIS/NIR spectroscopy. Studies of the nucleophilic reactions of these cations. Studies of the β,β-carotene-iodine complex. Isolation and anmalysis of new carotenoid glucoside esters from extremophilic bacteria.

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18

Woodall, Alan Anthony. "Carotenoids and the protection of membranes against oxidative damage." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240900.

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19

Hui, Bodi. "Studies on the extraction, analysis and biosynthesis of carotenoids." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321157.

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20

Tinkler, Jane Heather. "The excited states and radical ions of the carotenoids." Thesis, Keele University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295804.

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21

Bhosale, P. B. "Studies on yeast rhodotorula, its carotenoids and their applications." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2001. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2307.

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22

Moura, Lilian Maria [UNESP]. "Compostos bioativos em frutas cítricas: quantificação, avaliação da atividade antioxidante, parâmetros de cor e efeito da pasteurização." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/100880.

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Made available in DSpace on 2014-06-11T19:31:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-12-17Bitstream added on 2014-06-13T18:41:32Z : No. of bitstreams: 1 moura_lm_dr_arafcf.pdf: 518537 bytes, checksum: 9cc3dbf80249e562d69ea91c87e25384 (MD5)<br>As frutas cítricas são muito consumidas e apreciadas, não só devido ao seu paladar agradável como também ao valor nutricional que possuem. O Brasil é o maior produtor e exportador mundial de laranjas, suco de laranja concentrado congelado e de suco de laranja pasteurizado (NFC - Not From Concentrated), sendo o estado de São Paulo o mai

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23

Madeira, Ana de Matos Beja. "Extração e quantificação de carotenoides provenientes de diferentes cultivares de Capsicum annuum L. com interesse para a indústria farmacêutica." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5150.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas<br>O género Capsicum annuum L. inclui plantas de frutos picantes e adocicados vulgarmente conhecidos como pimentos ou pimentões. De entre os diferentes cultivares existem frutos com diferentes cores, sendo os mais conhecidos o verde e o vermelho. Porém existem outras variedades mais exóticas, como o amarelo, laranja, roxo e branco. A cor desenvolvida pelos vegetais está diretamente relacionada com a presença de certos metabolitos

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24

Campbell, Alan L. (Alan Lee). "The Genetics of Pigmentation in Corynebacterium poinsettiae ATCC 9682." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc330778/.

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Corynebacterium poinsettiae mutant strains blocked in carotenoid biosynthesis were obtained by treatment with the mutagen N-methyl-N1-nitro-N-nitrosoguanidine. Additional carotenoid (Crt) mutant strains were obtained from a previous study conducted in our laboratory. Fifty-nine Crt mutants affected in carotenoid biosynthesis were examined by a normal phase high performance liquid chromatography (HPLC) system. Pigment extracts of Crt mutants and C. poinsettiae wild type strains were resolved by an isocratic system with hexane:acetone:dicholoromethane, 11.35:1.73:1.00 (by vol.) as the eluting so

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25

Palczewski, Grzegorz. "Mammalian Carotenoid Metabolism." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1467993233.

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26

Díaz, Gómez Joana. "High-carotenoid maize as feed and food component: mycotoxin contamination, thermal processing, bioavailability and poultry meat production." Doctoral thesis, Universitat de Lleida, 2017. http://hdl.handle.net/10803/405891.

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El panís HC (de l'anglès high-carotenoid) va ser modificat genèticament per acumular alts nivells de carotenoides, utilitzant com a base un panís blanc sud-africà (M37W). Durant tres collites consecutives (2013, 2014 i 2015), es van cultivar el panís HC i la seva línia isogènica (M37W) en un camp experimental a Lleida (Catalunya, nord-est d'Espanya). Fusarium spp. va infectar la majoria de grans de panís d'ambdós tipus, el que va originar que es donés contaminació per fumonisines en les dues varietats de panís en tots els anys d'estudi, tot i que la proporció de grans contaminats va ser substa

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27

Ip, Po-fung. "Elicitation of astaxanthin biosynthesis in dark-heterotrophic cultures of Chlorella zofingiensis." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B34617048.

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28

Aferdita, Hoti. "The effect of Norflurazon on photosynthetic activity in isolated thylakoids from wheat (Triticum aestivum L : )." Thesis, Halmstad University, School of Business and Engineering (SET), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-4192.

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<p>This investigation has been performed on Norflurazon (NF) treated young wheat plants with</p><p>emphasis on their capacity to perform light-driven photosynthesis, as an effect of carotenoid </p><p>deficiency. The wheat seeds were soaked for approximately 17 hour in tap water or in water containing NF (28mg l-1 ca 10-4 M). Seedlings were grown for 7 days in a greenhouse (50 μmol m-2 s-1) or in weak light (ca 0.1 μmol m-2 s-1) in order to avoid photodestruction, before chloroplast and thylakoid isolation. NF-treatment and the low light condition also affected chlorophyll content. Isolated chl

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Ip, Po-fung, and 葉寶鳳. "Elicitation of astaxanthin biosynthesis in dark-heterotrophic culturesof Chlorella zofingiensis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B34617048.

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30

Weesie, Roland Johannes. "Spectroscopic studies of molecular interactions in carotenoproteins." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295829.

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31

Di, Filippo Michael M. "Effects of lutein and ß-cryptoxanthin on MMP-13, PGE₂ and cytokine production in human chondrosarcoma cells induced with interleukin-1ß." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/M_Di-Filippo_100909.pdf.

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Thesis (M.S. in food science)--Washington State University, December 2009.<br>Title from PDF title page (viewed on Jan. 19, 2010). "School of Food Science." Includes bibliographical references (p. 43-57).

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32

Cao, Yisi. "Analysis and properties of carotenoids in vivo and in vitro." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/2033.

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The purpose of this study was to develop a deeper understanding of the nature of carotenoid metabolism in the human and primate retina. We have sought to do this from two perspectives (1) through preparation and study of a carotenoid diketone that is a candidate metabolic product and (2) through measurement of the carotenoid distribution in the retinas of neonatal macaques. In this thesis we report the synthesis, purification, and characterization of the product using HPLC, UV/Vis, MS, 1H-NMR. The data obtained are all consistent with the proposed β,β-carotene-3,3'-dione. There has been no tho

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Prabhala, Rao H. "Two different molecular pathways of immunomodulation by retinoids and carotenoids." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184676.

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Epidemiological studies suggest that both retinoid and carotenoid intakes are inversely correlated with the incidence of human cancers. Animal studies show that both retinoids and carotenoids inhibit tumor cell growth. Both retinoids and carotenoids activate the cytotoxicity function of macrophages in animal experiments. The purpose of this study is to evaluate the molecular mechanism for 13-cis retinoic acid (13-cRA) and beta-carotene (BC) induced immunomodulation which could explain their anti-cancer affects. The effects of 13-cRA and BC were studied on various subpopulations of T-lymphocyte

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Maldonade, Iriani Rodrigues. "Produção de carotenoides por leveduras." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256052.

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Orientador: Adilma Regina Pippa Scamparini<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-03T16:03:30Z (GMT). No. of bitstreams: 1 Maldonade_IrianiRodrigues_D.pdf: 4259808 bytes, checksum: a80eab15ad28ff36edff81d33fd716be (MD5) Previous issue date: 2003<br>Resumo: Este trabalho teve como objetivo isolar e selecionar leveduras produtoras de carotenóides de ecossistemas brasileiros. As leveduras pigmentadas foram isoladas de amostras de solos, flores, folhas, frutos da região de Campinas-SP e de alimentos pro

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Jin, Xin. "Isoprenoid and flavonoid biosynthesis and regulation in higher plants." Doctoral thesis, Universitat de Lleida, 2019. http://hdl.handle.net/10803/667579.

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Aquesta tesi es centra principalment en l'anàlisi funcional i la caracterització dels gens que codifiquen per a alguns metabòlits secundaris i en l’estudi de la seva regulació en les plantes. Els objectius generals varen ser (a) entendre millor la regulació transcripcional del gen de la biosíntesi dels carotenoids, la β-carotè hidroxilasa 2 (BCH2) en el blat de moro i (b) l'anàlisi funcional de les dues isopentenil difosfat isomerasas (OsIPPI) d'arròs i determinar la seva localització subcel·lular. Simultàniament, es va estudiar com la llum afecta la via metabòlica i a la producció de pelargon

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Forgiarini, Juliana. "Cantaxantina em dietas com milho ou sorgo sobre os parâmetros reprodutivos de galos." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/10879.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>This study was carried out at the Poultry Science Laboratory (LAVIC) of Federal University of Santa Maria (UFSM). The objective was to evaluate the antioxidant effect of canthaxanthin on diets with or without addition of carotenoids to breeding males. It was used a total of 48 White Plymouth Rock breed hens from the 48th to the 59th week of age in a completely randomized design in a factorial arrangement, with two ingredients (corn or sorghum), and two levels of canthaxanthin (0 mg/kg or 6 mg/kg) totaling four experimental diets

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Torres, Ane Pamela Capucci [UNESP]. "Biomassa bacteriana como aditivo de ração de aves e peixes." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/94595.

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Made available in DSpace on 2014-06-11T19:27:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-11-05Bitstream added on 2014-06-13T19:35:09Z : No. of bitstreams: 1 torres_apc_me_araca.pdf: 261452 bytes, checksum: 991e448a142886f9718c07c6963016f3 (MD5)<br>Rubrivivax gelatinosus é uma bactéria fototrófica natural de ambientes aquáticos que apresenta a capacidade de crescer em substratos contendo diversos compostos orgânicos. Neste trabalho, a biomassa da bactéria, produzida em águas residuárias provenientes de abate e processamento de pescado, foi caracterizada em relação a cor, composi

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Vieira, Janaina Maria Martins. "MaceraÃÃo enzimÃtica da casca residual do despolpamento dos frutos da cajazeira." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12989.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O Brasil Ã um dos paÃses que mais produz resÃduos agroindustriais, como os resÃduos de frutas pelas indÃstrias de polpas, o que tem contribuÃdo para o aumento da produÃÃo do lixo orgÃnico provocando graves problemas ambientais. O Nordeste se destaca devido Ã enorme diversidade de frutos considerados exÃticos, sendo o cajÃ (Spondias mombin L.) um forte exemplo. Este fruto contÃm substÃncias antioxidantes, presenÃa de compostos fenÃlicos, tais como flavonoides, Ãcidos fenÃlicos, antocianinas, carotenoides, alÃm das vitamin

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Torres, Ane Pamela Capucci. "Biomassa bacteriana como aditivo de ração de aves e peixes /." Araçatuba : [s.n.], 2010. http://hdl.handle.net/11449/94595.

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Orientador: Elisa Helena Giglio Ponsano<br>Banca: Marcelo Vasconcelos Meireles<br>Banca: Otto Mack Junqueira<br>Resumo: Rubrivivax gelatinosus é uma bactéria fototrófica natural de ambientes aquáticos que apresenta a capacidade de crescer em substratos contendo diversos compostos orgânicos. Neste trabalho, a biomassa da bactéria, produzida em águas residuárias provenientes de abate e processamento de pescado, foi caracterizada em relação a cor, composição centesimal, composição microbiológica e conteúdo de pigmentos carotenóides e aminoácidos, visando avaliar seu potencial como ingrediente par

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Hernández, Gras Francesc. "Identificació i caracterització de proteïnes relacionades en l'acumulació de carotenoides en el fruit del tomàquet." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/104269.

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Els carotenoids són el major grup de pigments presents en la natura. Aquests compostos són molt apreciats al presentar la capacitat de prevenir malalties cardiovasculars, certs tipus de càncer i diversos processos degeneratius. Malgrat la necessitat d’aquests compostos els humans no són capaços de sintetitzar-los y s’han adquirir en la dieta. Essent el fruit del tomàquet la major font de carotenoids en la dieta occidental. El licopè i el β-carotè són els carotenoids que es produeixen en grans quantitats en el fruit del tomàquet al llarg del procés de maduració. L’acumulació de carotenoides pro

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Kruk, Zbigniew Antoni. "Genetic and non-genetic factors affecting carotenoid concentration in cattle tissues : a thesis for the degree of Doctor of Philosophy at the University of Adelaide in the Department of Animal Science." Title page, table of contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phk94.pdf.

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Includes bibliographical references (leaves 178-194). Genetic and non-genetic factors affecting fat colour in cattle were examined in biopsy and carcass samples of Jersey and Limousin cattle in their F1 and backcross progeny.

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Young, Philip Richard 1973. "Molecular analyses of candidate carotenoid biosynthetic genes in Vitis vinifera L." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/53752.

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Thesis (PhD)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Plants cannot avoid stress and must therefore be capable of rapidly responding to extreme environmental changes. An inability to control and regulate the photosynthetic process during stress conditions will lead to the formation of highly reactive oxygen species that concomitantly causes photo-oxidative damage to the pigments and proteins of the photosynthetic apparatus. Since light is the primary source of energy for the photosynthetic process, it is clear that plants are continuously required to balance the light ene

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Abusada, Gabi M. (Gabi Michael). "Studies on the Mechanism of Protection by Carotenoids Against Photodynamic Killing in Curtobacterium Flaccumfaciens Pathover Poinsettiae." Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc332581/.

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The mechanism of protection by carotenoids against photodynamic killing in Curtobacterium flaccumfaciens pathover poinsettiae (C. poinsettiae) was studied using pigment mutants isolated by treatment with nitrosoguanidine and DNA gyrase inhibitors. Growth rates, pigment composition, pigment levels and the ultrastructure of the wild-type streptomycin resistant strain of G. poinsettiae (wt-str) and all mutants were compared. One mutant, NTG-1, lacked colored carotenoids, and another, NTG-2, was a slow growing mutant containing low levels (14%) of wild-type carotenoid pigments. Except for NTG-1, t

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Wong, Ka-ho. "Transgenic chlamydomonas reinhardtii as an experimental system to study the regulation of carotenoid biosynthesis in green microalgae." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36587011.

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Ryan, Karon Magadalene Leanne. "Variation of flour colour in Western Australia adapted wheat : comparative genomics, molecular markers and QTL analysis /." Access via Murdoch University Digital Theses Project, 2005. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20061019.130337.

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劉愛霞 and Oi-ha Lau. "The growth and astaxanthin formation of haematococcus lacustris." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31215488.

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Xu, Simin, and 徐思敏. "Characterization of astaxanthin accumulation in green algae." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43278553.

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Zhong, Yujuan, and 钟玉娟. "Functional analysis of green algal {221}-carotene ketolases and metabolic engineering of astaxanthin biosynthesis in higher plants." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47145730.

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Astaxanthin (3,3'-dihydroxy-β-carotene-4,4'-dione) is a ketocarotenoid that is beneficial for human health due to its ability of boosting immune function and preventing tumor formation. The biosynthesis of astaxanthin is, however, limited only to a few organisms. The burgeoning demand for natural astaxanthin has attracted much recent interest in extending the carotenoid pathway of higher plants to astaxanthin by expressing a microbial β-carotene ketolase (BKT). One major challenge of engineering an astaxanthin pathway in plants is the low astaxanthin content achieved. Five green microalgae

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Auerbach, Rita. "Applications of supercritical fluids to analytical chemistry." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363559.

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Law, Christopher J. "Structure and function studies on the LH1-RC core complex from a range of photosynthetic purple bacteria." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284738.

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