Microbial astaxanthin: from bioprocessing to the market recognition

Mussagy, Cassamo U.; Kot, Anna M.; Dufossé, Laurent; Gonçalves, Carmem N. d. P.; Pereira, Jorge Fernando Brandão; Santos-Ebinuma, Valéria C.; Raghavan, G. S. V.; Pessoa, Adalberto

doi:10.1007/s00253-023-12586-1

Cited by 7 publications

(1 citation statement)

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“…Haematococcus lacustris (Girod-Chantrans) Rostafinski is a flagellated green alga widely known and studied for its capacity to accumulate astaxanthin, a red keto-carotenoid pigment. The pigment has many applications in healthcare, cosmetic and food industries ( Generalić Mekinić et al, 2023 ) and the natural-based astaxanthin is commercially produced by several companies ( Mussagy et al, 2023 ). The green alga species was previously referred as H. pluvialis , but H. lacustris was regarded as the correct name of the type species ( Nakada and Ota, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Salinity tolerance and desalination properties of a Haematococcus lacustris strain from eastern Hungary

Bácsi,

Figler,

Simon

et al. 2024

Front. Microbiol.

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Nowadays the increasing amount of saline wastewaters has given rise to various biological desalination processes, among which the application possibilities of microalgae represents a priority research area. Next to “real” aquatic species (members of phytoplankton or phytobenthon), species from ephemeral aquatic habitats or aeroterrestrial algae also could be good candidates of research studying salt tolerance or desalination ability, since salinity stress is often referred as “physiological drought” and species from ephemeral habitats can be characterized by high drought tolerance. In this study, the salinity tolerance, salt and nutrient removal ability of a Haematococcus lacustris strain from eastern Hungary were investigated. Vegetative cells showed low salt tolerance, survival was ensured by the formation of cysts up to a sodium-chloride concentration of 2,000 mg l−1. Although relatively moderate (a max. 30%) conductivity reduction and chloride removal were observed, notable (nearly 100%) nitrate and phosphate removal occurred even in the presence of 2,000 mg l−1 NaCl. Carotenoid accumulation was observed earlier and in higher extent in salt treated cultures than in drying out ones, although the amount of astaxanthin-esters was significantly higher in the cultures of drying out experiment than in the corresponding cultures of salt treatment characterized with similar chloride content. Our results suggest that algae isolates from ephemeral aquatic habitats endangered by regular drying out (exposed to special salt stress), could have notable salt tolerance and consequently successful applicability in nutrient removal processes from slightly saline wastewaters. The accumulation of valuable metabolites (such as astaxanthin) as a response to salinity stress, could enhance the economic value of the biomass.

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Section: Introductionmentioning

confidence: 99%