Potential carbon fixation of industrially important microalgae

Sydney, Eduardo Bittencourt; Sydney, Alessandra Cristine Novak; Carvalho, Júlio César de; Soccol, Carlos Ricardo

doi:10.1016/b978-0-444-64192-2.00004-4

Cited by 18 publications

(15 citation statements)

References 52 publications

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“…Microalgae can fix CO 2 derived from flue gas emission through photosynthesis (Sayre, 2010;Pires et al, 2012). Additionally, microalgae are able to uptake soluble carbonates as a source of CO 2 (Thomas et al, 2016;Sydney et al, 2019). This uptake depends on the environmental pH.…”

Section: Chlorella Vulgaris and Its Phycosphere Is Effective In Biorementioning

confidence: 99%

Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal

Wirth

Pap

Böjti

et al. 2020

Front. Bioeng. Biotechnol.

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Microalgae-based bioenergy production is a promising field with regard to the wide variety of algal species and metabolic potential. The use of liquid wastes as nutrient clearly improves the sustainability of microalgal biofuel production. Microalgae and bacteria have an ecological inter-kingdom relationship. This microenvironment called phycosphere has a major role in the ecosystem productivity and can be utilized both in bioremediation and biomass production. However, knowledge on the effects of indigenous bacteria on microalgal growth and the characteristics of bacterial communities associated with microalgae are limited. In this study municipal, industrial and agricultural liquid waste derivatives were used as cultivation media. Chlorella vulgaris green microalgae and its bacterial partners efficiently metabolized the carbon, nitrogen and phosphorous content available in these wastes. The read-based metagenomics approach revealed a diverse microbial composition at the start point of cultivations in the different types of liquid wastes. The relative abundance of the observed taxa significantly changed over the cultivation period. The genome-centric reconstruction of phycospheric bacteria further explained the observed correlations between the taxonomic composition and biomass yield of the various waste-based biodegradation systems. Functional profile investigation of the reconstructed microbes revealed a variety of relevant biological processes like organic acid oxidation and vitamin B synthesis. Thus, liquid wastes were shown to serve as valuable resources of nutrients as well as of growth promoting bacteria enabling increased microalgal biomass production.

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Section: Chlorella Vulgaris and Its Phycosphere Is Effective In Biorementioning

confidence: 99%

Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal

Wirth

Pap

Böjti

et al. 2020

Front. Bioeng. Biotechnol.

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“…Some of the environmental benefits of algae include fixation of carbon dioxide. Studies have reported that large cultivation of microalgae capable of uptaking carbon from the atmosphere; for instance, Spirulina platensis with carbon fixation rate of 318 mg/L −1 d −1 and Chlorella vulgaris with carbon fixation rate of 251 mg/L −1 d −1 [22,23].…”

Section: Synthetic Versus Natural Ingredients In Cosmetic Industrymentioning

confidence: 99%

Algae Metabolites in Cosmeceutical: An Overview of Current Applications and Challenges

et al. 2020

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Cosmetics are widely used by people around the world to protect the skin from external stimuli. Consumer preference towards natural cosmetic products has increased as the synthetic cosmetic products caused adverse side effects and resulted in low absorption rate due to the chemicals’ larger molecular size. The cosmetic industry uses the term “cosmeceutical”, referring to a cosmetic product that is claimed to have medicinal or drug-like benefits. Marine algae have gained tremendous attention in cosmeceuticals. They are one of the richest marine resources considered safe and possessed negligible cytotoxicity effects on humans. Marine algae are rich in bioactive substances that have shown to exhibit strong benefits to the skin, particularly in overcoming rashes, pigmentation, aging, and cancer. The current review provides a detailed survey of the literature on cosmeceutical potentials and applications of algae as skin whitening, anti-aging, anticancer, antioxidant, anti-inflammation, and antimicrobial agents. The biological functions of algae and the underlying mechanisms of all these activities are included in this review. In addition, the challenges of using algae in cosmeceutical applications, such as the effectiveness of different extraction methods and processing, quality assurance, and regulations concerning extracts of algae in this sector were also discussed.

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“…The wide range of applications in which microalgae may play a key role in the future, e.g. phytoremediation or carbon capture [21], requires their full characterisation in order to select the most promising species for each use, thus contributing to the understanding and success of microalgal processes [22].…”

Section: Selection and Isolationmentioning

confidence: 99%

“…Figure 1 presents a simplified version of the mixotrophic carbon fixation under nutrient limiting conditions that lead to lipid biosynthesis. Mixotrophism makes use of the most advantages of heterotrophic and autotrophic modes by using either light or carbon as the energy source on its nutrition pathways and therefore having no light dependency [21]. In such conditions, acetyl-CoA will be produced and maintained from both the CO 2 fixation and extra cellular organic carbon (see Figure 1), showing reduced photo inhibition.…”

Section: Cultivation Modesmentioning

confidence: 99%

Microalgae: Cultivation Aspects and Bioactive Compounds

Coelho

Tundisi

Cerqueira

et al. 2019

Braz. arch. biol. technol.

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Microalgae are aquatic unicellular microorganisms that can be found both in freshwater and marine systems; are capable of photosynthesis; and can grow as individual cells or associated in chains or small colonies. Microalgae cultivation has gained large momentum among researchers in the past decades due to their ability to produce value metabolites, remarkable photosynthetic efficiency, and versatile nature. The wide technological potential, and thus increasing amount of scattered knowledge, may become the very first barrier that a post graduating student, or any non-specialist reader, will face when introduced to the subject. In this review paper, we access the core aspects of microalgae technology, covering their main characteristics, and comprehensively presenting the main features of their various cultivation modes and biological activity from metabolites.

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Potential carbon fixation of industrially important microalgae

Cited by 18 publications

References 52 publications

Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal

Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal

Algae Metabolites in Cosmeceutical: An Overview of Current Applications and Challenges

Microalgae: Cultivation Aspects and Bioactive Compounds

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