Análises dos parâmetros de cultivo da microalga <i>Chlorella vulgaris</i>

Abstract

Aos meus pais, José e Rita, que muitas vezes se doaram e renunciaram aos seus sonhos, para que eu pudesse realizar os meus. Quero dizer que essa conquista não é só minha, mas nossa. Tudo que consegui só foi possível graças ao amor, apoio e dedicação que vocês sempre tiveram por mim. Sempre me ensinaram agir com respeito, simplicidade, dignidade, honestidade e amor ao próximo. E graças à união de todos, os obstáculos foram ultrapassados, vitórias foram conquistadas e alegrias divididas. Agradeço pela paciência e compreensão com minha ausência durante essa longa jornada. Muitíssimo obrigado. RESUMO MARINO, V. F. Análises dos parâmetros de cultivo da microalga Chlorella vulgaris. 2018. 65 p. Dissertação(Mestrado

>i<In vitro>/i< photoprotective attributes from the >i<Chlorella vulgaris>/i< cultivated in photobioreactor

“…In relation to superior plants, microalgae have advantages for having fast growth, low consumption of water for production, easy harvesting, high CO2 fixation, helping to reduce the concentration of greenhouse gases in the atmosphere, production of O2, production of non-seasonal biomass and the possibility of being cultivated in waste or non-potable water (POHNDORF et al, 2016;MARINO, 2018;CEZARE-GOMES et al, 2019). However, it is essential to control the cultivation conditions to obtain uniform biomass composition (ARIEDE et al, 2017).…”

“…MANN, 1995) is Phylum Chlorophyta > Class Trebouxiophyceae > Order Chlorellades > Family of Chlorellaceae > Genus Chlorella > Specie C. vulgaris. C. vulgaris is a microalgae that has a spherical shape sizing from 2-10 μm in diameter; there is no flagellum, being an immobile cell; its cytoplasm is composed of water, proteins and minerals and only one chloroplast that has photosynthetic pigments, such as chlorophyll a and b in its interior; it has a greenish color and its reproduction occurs by binary partition through asexual spores that grow quickly, originating an average of one cell every 24 hours, when under optimal cultivation conditions (Figure 1 a and b) (RAVEN; EVERT; EICHHORN, 2007;ARAÚJO, 2015b;MARINO, 2018). Its wall is rigid due to the presence of glucosamine in its basic composition, however, its thickness and composition vary according to the growth phase (SAFI et al, 2014;MARINO, 2018).…”

“…These compounds can be modulated according to the amount of nitrate and light intensity available during their cultivation (LIAO et al, 2017). They are synthesized by chloroplasts and are also found in cell walls and in some organelles, such as mitochondria (SAFI et al, 2014;MARINO, 2018). Carbohydrates represent a group of reduced sugars and polysaccharides, such as starch and cellulose.…”

“…The tubular photobioreactor can be built with plastic or glass tubes with a maximum diameter to ensure greater light penetration and ensure its absorption by the cells. The length must also be optimized and the homogenization of the medium is usually performed by air pumps, promoting agitation and preventing cell sedimentation (SHOW et al, 2017;MARINO, 2018).…”

“…Nitrogen composes their cellular structure and it is part of physiological and biological processes (ACIOLI, 2014; ARAÚJO, 2015b). It is possible to affirm that under limiting condition of this nutrient, the microalgae growth will be proportional to the amount of nitrate available, especially when it comes to a discontinuous type of cultivation in which the cells consume the nutrients available in the medium, being are not replenished (LI et al, 2016;ADAMAKIS et al, 2018;MARINO, 2018).…”