Sustainable Production of Pigments from Cyanobacteria

Deepika, Charu; Wolf, Juliane; Roles, John; Ross, Ian L.; Hankamer, Ben

doi:10.1007/10_2022_211

Cited by 4 publications

(1 citation statement)

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“…Cyanobacterial species from the Anabaena, Trichormus, Nostoc and Spirulina genera can secrete pigments in their culture media. In addition to chlorophyll, filamentous cyanobacteria are thought to be desirable organisms for the production of carotenoids, phycocyanin and other significant chemicals that serve as accessory pigments in photosynthesis (Deepika et al, 2022). Auxins, gibberellins and cytokinins are just a few of the growth-promoting compounds that cyanobacteria have been found to synthesize and secrete (Kaushik, 2014).…”

Section: Discussionmentioning

confidence: 99%

Characterization and identification of some Cyanophyta isolated from sandy soil

Ghazal

Salem

2023

Egyptian Journal of Agricultural Research

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Three cyanobacterial filamentous, heterocystous isolates (A, B, and C) were isolated from sandy soil collected from the Ismailia Agricultural Research Station (ARC), Ismailia Governorate, Egypt. A polygenic approach was used to characterize these isolates, which included morphology, ultrastructure, and molecular analyses. The morphological analyses for the three strains agree with the molecular data (16S, ITS, and 23S rRNA sequences and phylogeny); the order of our isolates is: Nostocales and family: Nostocaceae, they identified as the following: isolate A: Trichormus variabilis; isolate C: Trichormus sp.) which are filamentous and terminal heterocysts; and isolate B: Nostoc sp.) colonies formed of filamentous heterocysts enclosed in a membrane and gelatinous polysaccharide sheath. Dry weight, pigment content, phytohormones, total nitrogen, total protein, exopolysaccharides, and phosphate dissolving were determined for three strains. The results showed that Trichormus variabilis has the highest chlorophyll a content, Nostoc sp. has the highest carotenoid content, and three strains have almost similar phycocyanin content, while three strains can secrete phytohormones and nitrogen in their medium and dissolve phosphate, with near values in Trichormus variabilis and Trichormus sp. and a slight difference in Nostoc sp. According to the findings of this study, cyanobacterial strains isolated from Ismailia Agricultural Research Station can be used as biofertilizers and nitrogen-fixing fertilizers because of their ability to secrete phytohormones and bioactive compounds and fix air nitrogen in free nitrogen medium.

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Section: Discussionmentioning

confidence: 99%

Characterization and identification of some Cyanophyta isolated from sandy soil

Ghazal

Salem

2023

Egyptian Journal of Agricultural Research

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Hydrothermal liquefaction of wet microalgal biomass for biofuels and platform chemicals: advances and future prospects

Deepika,

Mrinal,

Pohrmen

et al. 2024

Discov Appl Sci

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Recent advances in hydrothermal liquefaction (HTL) have established this biomass conversion technology as a potent tool for the effective valorization and energy densification of varied feedstocks, ranging from lignocelluloses to microalgae and organic wastes. Emphasizing its application across biomass types, this exploration delves into the evolving landscape of HTL. Microalgae, recognized as a promising feedstock, offer a rich source of biomolecules, including lipids, carbohydrates, and proteins, making them particularly attractive for biofuel production. The comprehensive review explores the biofuel products and platform chemicals obtained through HTL of microalgae, delving into biodiesel production, bio-oil composition, characteristics, and to produce high-valued by-products. Challenges and limitations, such as reactor design, scalability issues, and the impact of microalgal composition on yields, are critically analyzed. The future prospects and research directions section envision advancements in HTL technology, integration with biorefinery processes, and the exploration of hybrid approaches for enhanced biofuel production. Overall, the paper emphasizes the promising potential of HTL for wet microalgal biomass and underscores the need for continued research to overcome existing challenges and unlock further opportunities in sustainable biofuel and platform chemical production.

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