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Tesi sul tema "Culture heterotrophe"

Autore: Grafiati

Pubblicato: 28 settembre 2024

Ultima modifica: 31 luglio 2025

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1

Camarena, Cristobal. "Lutein production and extraction improvements from a heterotrophic culture of scenedesmus almeriensis." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST085.

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Les microalgues sont considérées comme une solution biotechnologique aux problèmesmajeurs de ce siècle, offrant des réponses et des alternatives dans des domainestels que la malnutrition, les pénuries alimentaires, le changement climatique etla pollution. En tant qu'organismes photosynthétiques, les microalgues synthétisent denombreux composés afin d'exploiter la lumière du soleil pour leurs fonctions métaboliques, notamment la lutéine, un caroténoïde jaune essentiel pour l'alimentation humaine.Bien que la lutéine soit un composé associé à l'activité photosynthétique des microalgues,certaines

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2

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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3

Sanz, Sáez Isabel. "Contribution of marine heterotrophic cultured bacteria to microbial diversity and mercury detoxification." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671617.

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Els oceans conten aproximadament un total de 10^29 cèl·lules microbianes. Els bacteris marins són responsables de la major part de la respiració que es produeix en l’oceà i són essencials en els cicles biogeoquímics de la Terra. Estudiar la diversitat bacteriana dels ecosistemes marins i tenir accés als genomes mitjançant estudis dependents o independents de cultiu és important per desxifrar el potencial metabòlic dels bacteris marins. El cultius ens aporten informació sobre la fisiologia bacteriana, ecologia i contingut genòmic, però la majoria dels esforços en aïllar bacteris marins proven

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4

Strate, Jessica Lorene. "Characterization and activity comparisons of methanotrophic-heterotrophic mixed cultures derived from a landfill environment." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0009061.

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5

溫志友 and Zhiyou Wen. "A high yield and productivity strategy for eicosapentaenoic acid production by the diatom Nitzschia laevis in heterotrophic culture." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242418.

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6

Wen, Zhiyou. "A high yield and productivity strategy for eicosapentaenoic acid production by the diatom Nitzschia laevis in heterotrophic culture." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23242097.

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7

Ducos, Jean-Paul. "Croissance et metabolisme primaire de suspensions heterotrophes de catharanthus roseus en fermenteur : importance de la phase gazeuse." Toulouse, INSA, 1986. http://www.theses.fr/1986ISAT0031.

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8

Berthold, Erwin David. "Enhancing Algal Biomass and Lipid Production through Bacterial and Fungal Co-Culture." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2563.

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This thesis investigates the effects of co-culturing microorganisms including 37 yeast, 38 bacteria, nine diazotrophic cyanobacteria, and three fungi on biomass and lipid production in fresh- and saltwater algae. Algal lipid content was measured using Nile Red method and gravimetric techniques. Among the algal strains tested, freshwater Coelastrum sp. 46-4, and saltwater Cricosphaera sp. 146-2-9, showed enhanced biomass yield and lipid content in response to co-culture with bacteria, cyanobacteria, and fungi. While co-culture with yeast caused inhibition of algal productivity, no difference in

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9

Fuller, Andrew Kenneth Radburne. "The grazing and growth rates of some marine protozoa measured in batch and continuous culture with particular reference to the heterotrophic dinoflagellate Oxyrrhis marina." Thesis, Royal Holloway, University of London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325771.

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10

Zhang, Jing. "Development of Chlorella vulgaris and Saccharomyces cerevisiae in immobilized cultures." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC034.

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Abstract (sommario):

Chlorella vulgaris (C. vulgaris) est un organisme modèle qui présente un potentiel commercial élevé dans le domaine de l'alimentation et de l'énergie, avec une faisabilité prouvée de cultures sous forme de biofilms et de co-culture de levures/microalgues pour la valorisation in situ du CO2 dans les processus biotechnologiques. Ce travail de doctorat se concentre sur les colonies immobilisées dans des cultures pures ou mixtes. Il vise une meilleure compréhension des interactions au sein des colonies et entre colonies, avec pour objectif ultime de comprendre et d'optimiser les co-cultures.Pour a

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11

Bockstaller, Christian. "Taille et forme des semences de maïs (Zea mays l. ) : variabilité et effets sur la croissance, le développement et le rendement." Vandoeuvre-les-Nancy, INPL, 1993. http://docnum.univ-lorraine.fr/public/INPL_T_1993_BOCKSTALLER_C.pdf.

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La variabilite de la taille et de la forme des semences de maïs a été caractérisée au sein d'une variété. Les effets de la taille de la semence et de sa forme plate ou ronde sur la croissance, le développement et le rendement en grain ont été étudiés au champ. Aucun effet de la forme de la semence n'a été mis en évidence. Le développement de la plante est faiblement influence par la taille de la semence. À la sortie de la phase d'hétérotrophie, la croissance est liée positivement au poids de la semence. Cet effet de la taille de la semence se maintient durant la croissance exponentielle, puis

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12

Bonini, Monica de Albuquerque. "Cultivo heterotrófico de Aphanothece microscopica Nägeli e Chlorella vulgaris em diferentes fontes de carbono e em vinhaça." Universidade Federal de São Carlos, 2012. https://repositorio.ufscar.br/handle/ufscar/7.

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Made available in DSpace on 2016-06-02T18:55:22Z (GMT). No. of bitstreams: 1 4151.pdf: 927553 bytes, checksum: 064b20beb733cd6507b60f122733aee7 (MD5) Previous issue date: 2012-03-08<br>Financiadora de Estudos e Projetos<br>ABSTRACT Microalgae include both algae Chlorophycea and cyanobacteria. These organisms have attracted interest due to its versatile metabolism, since some strains have, additionaly to photosynthetic metabolism, hability to grow in the dark by the consumption of simple organic molecules, such as glucose, acetate and glycerol. This hability suggests the application of these

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13

Hellequin, Eve. "Effets des biostimulants sur le fonctionnement biologique de sols d’agrosystèmes : réponses des communautés microbiennes et dynamique de minéralisation du carbone organique." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1B029.

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L’agriculture intensive est en pleine transition vers des pratiques agroécologiques qui s’appuient sur la biodiversité et les processus écologiques. Dans les agrosystèmes, la matière organique est un élément clé de la fertilité des sols et constitue une réserve importante de carbone. La fertilisation organique par les résidus de cultures est donc une pratique agricole qui permet d’améliorer le stock de matière organique. Les microorganismes du sol ont un rôle essentiel dans la dynamique du carbone et sont les principaux acteurs de sa minéralisation et de la mise à disposition des nutriments po

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14

Costa, Ana Pedroso de Lima. "The effect of light and heterotrophy in the ex situ culture of the soft coral Sarcophyton cf. glaucum." Master's thesis, 2015. http://hdl.handle.net/10400.1/7743.

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Dissertação de mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015<br>The increasing demand of corals, either for bioprospecting marine natural products for biomedical purposes, for the marine aquarium trade, or for utilization in coral reefs restoration efforts, has led to the need of cultivating these organisms. The production ex situ allows a better control over biomass production through the optimization of culture protocols. Therefore, it is important to understand the biology and physiology of cultivated organisms, in order to improve culture con

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15

Lin, Tzu-Yu, and 林子榆. "Production of high-value FDCA (2,5-furandicarboxylic acid) in a synthetic mixed culture of cyanobacteria and heterotrophic bacteria." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/kbhkaw.

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16

Sousa, David Miguel Martins. "Valorização de resíduos da indústria agroalimentar para produzir SCP através da cultura de microalgas." Master's thesis, 2019. http://hdl.handle.net/10400.26/30623.

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A produção intensiva de produtos agrícolas, como os legumes e frutas, tem vindo a aumentar ano após ano e consequentemente, têm-se registado um aumento da produção de resíduos, derivados a transformação desses mesmos produtos. Muitas vezes este setor apresenta grandes dificuldades em tratar esses resíduos, muitos deles ricos em carbono orgânico, servindo como um substrato ideal para o crescimento de microalgas. Este trabalho de investigação teve como objetivo o estudo do crescimento de Chlorella protothecoides em quatro resíduos agroindustriais, o repiso de tomate, as borras de café, as

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17

Madureira, Leandro Filipe Feiteira. "Use of agro-industrial by-products for Pavlova spp. culture and heterotrophic growth of Nannochloropsis spp. as relevant production strategies for oleaginous microalgae." Master's thesis, 2019. http://hdl.handle.net/1822/64714.

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Dissertação de mestrado em Biotecnologia<br>The polyunsaturated essential fatty acids are divided into two relevant groups in human nutrition, omega-6 (n-6 PUFAs) and omega-3 (n-3 PUFAs) and carry on several important roles in the human body. However, several factors resulted in a consumption of n-6 PUFAs approximately 20 times greater than the consumption of n-3 PUFAs, showing a lack of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the dietary requirements. Both come from marine fish, such as salmon and mackerel, or from fish oils. As result of the increasing demand for food

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