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Growth of nannochloris algae in the presence of microwaves (continuous reactor)

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Growth of nannochloris algae in the presence of microwaves (continuous reactor)

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dc.contributor.author Calinescu, Ioan es_ES
dc.contributor.author Vintila, Alin es_ES
dc.contributor.author Diacon, Aurel es_ES
dc.contributor.author Vinatoru, Mircea es_ES
dc.contributor.author Chipurici, P. es_ES
dc.contributor.author Galan, Ana Maria es_ES
dc.contributor.author Velea, Sanda es_ES
dc.date.accessioned 2019-11-13T09:08:26Z
dc.date.available 2019-11-13T09:08:26Z
dc.date.issued 2019-10-15
dc.identifier.isbn 9788490487198
dc.identifier.uri http://hdl.handle.net/10251/130889
dc.description.abstract [EN] Algae are very effective in capturing the sun's energy, carbon dioxide from the atmosphere, and nutrients to turn them into useful substances (carbohydrates, oils, proteins, etc.). Besides the main metabolites, there are also secondary metabolites, such as carotenoids (astaxanthin, β-carotene, lutein, lycopene, and canthaxanthin [1]). Both major and compounds existing in small amounts in algae are useful. Oils and carbohydrates could provide biofuels, proteins can get products with nutritional value and from carotenoids can be prepared food supplements. Obtaining biofuel from algae has not yet proved to be economically viable [2, 3]. A much higher interest might be getting food supplements from algae. To increase their value as ingredients for food supplements, algal oils should have a higher degree of unsaturation (rich in omega 3) and an increased carotenoid content to be an important additional benefit in over all processing of algae. There are studies that refer to the influence of environmental factors on algae composition [2], but the microwave influence on algae growth, especially algal metabolites composition change is very poor studied. In this paper, besides the experiments for the activation of algal growth in discontinuous reactors [4] additional work was conducted in a continuous photobioreactor. The goal was checking not only the growth of microalgae but also their content in polyunsaturated oil and in carotenoids. By microwave-controlled irradiation of the nutrient and algae flux, which is recirculated through the photobioreactor and through a glass reactor located in a TE-type monomod cavity, the lipid content of the algae increased, but only, the modification of the lipid fraction content was significantly increased in the concentration of polyunsaturated acids with 16 and 18 carbon atoms. As far as carotenoids are concerned, the algae nannochloris has a higher carotenoid content over many known vegetables holding carotene or lycopene (carrots or tomatoes). Besides oil increasing microwave treatment produced a significant increase in carotenoid content of algae. They can be extracted together with omega-3-rich algal oil and are the basis of very valuable dietary supplements. es_ES
dc.description.sponsorship The authors acknowledge the financial support received from the Competitiveness Operational Programme 2014-2020, Action 1.1.4: Attracting high-level personnel from abroad in order to enhance the RD capacity, project: P_37_471, „Ultrasonic/Microwave Nonconventional Techniques as new tools for nonchemical and chemical processes”, financed by contract: 47/05.09.2016 es_ES
dc.format.extent 7 es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation FEDER-Guvernul României/COP-P_37_471
dc.relation.ispartof AMPERE 2019. 17th International Conference on Microwave and High Frequency Heating es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Energy Production by Microwaves es_ES
dc.subject Microwave CVD es_ES
dc.subject EM Modelling es_ES
dc.subject Microwave Material interaction es_ES
dc.subject Dielectric Properties es_ES
dc.subject Dielectric Properties Measurement es_ES
dc.subject Solid State Microwave es_ES
dc.subject Microwave Processing es_ES
dc.subject Microwave Chemistry es_ES
dc.subject Microwave applicators design es_ES
dc.title Growth of nannochloris algae in the presence of microwaves (continuous reactor) es_ES
dc.type Capítulo de libro es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.4995/AMPERE2019.2019.9820
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Calinescu, I.; Vintila, A.; Diacon, A.; Vinatoru, M.; Chipurici, P.; Galan, AM.; Velea, S. (2019). Growth of nannochloris algae in the presence of microwaves (continuous reactor). En AMPERE 2019. 17th International Conference on Microwave and High Frequency Heating. Editorial Universitat Politècnica de València. 203-209. https://doi.org/10.4995/AMPERE2019.2019.9820 es_ES
dc.description.accrualMethod OCS es_ES
dc.relation.conferencename Ampere 2019 es_ES
dc.relation.conferencedate Septiembre 09-12,2019 es_ES
dc.relation.conferenceplace Valencia, Spain es_ES
dc.relation.publisherversion http://ocs.editorial.upv.es/index.php/AMPERE2019/AMPERE2019/paper/viewFile/9820/4991 es_ES
dc.description.upvformatpinicio 203 es_ES
dc.description.upvformatpfin 209 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.relation.pasarela OCS\9820 es_ES
dc.contributor.funder European Regional Development Fund
dc.contributor.funder Guvernul României


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