Enrichment of chlorophyll and phycobiliproteins in Spirulina platensis by the use of reflector light and nitrogen sources: An in-vitro study

Ajayan, K V; Selvaraju, M.; Thirugnanamoorthy, K.

doi:10.1016/j.biombioe.2012.09.012

Cited by 67 publications

(31 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The maximum biomass yield was 6,900 and 6,100 mg/L with RL + urea and RL + KND 3 , respectively. The highest content of phycocyanin (14.81 ± 0.22%) and allophycocyanin (4.52 ± 0.09%) were obtained with 4 lux (Ajayan et al, 2012). These results indicate that biomass production was much higher than that found in this study, in which the highest biomass yield was obtained in experiment 6 (3.270 mg/L).…”

Section: Biomass Productioncontrasting

confidence: 54%

Biomass production by Arthrospira platensis under different culture conditions

Castro¹,

Rizzo²,

Passos³

et al. 2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

In biotechnological processes, the culture media components are responsible for high costs and exert a strong influence on the cyanobacteria behavior. The objective of this study was to evaluate the Arthrospira platensis growth potential for biomass production under different cultivation conditions using an experimental design. Three factors that are important for cyanobacteria growth were evaluated: sodium bicarbonate (9 to 18 g/l), sodium nitrate (1.25 to 2.5 g/l), and irradiance (20 to 120 µmol photons/ m 2 .s -1). The results showed that the concentration of NaND 3 in the A. platensis medium can be reduced, resulting in increased concentrations of biomass produced. There was a higher biomass production due to the increase in the concentration of NaHCD 3 and irradiance, mainly when these two factors varied tending towards the highest values studied. The results demonstrate the potential to produce Arthrospira platensis with lower costs and effluent generation without affecting cultivation performance.

show abstract

Section: Biomass Productioncontrasting

confidence: 54%

Biomass production by Arthrospira platensis under different culture conditions

Castro¹,

Rizzo²,

Passos³

et al. 2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

show abstract

“…The Chl content for all the strains rose at first and then declined later during the 21 d culture. In this study, the medium was not added except the supply of CO 2 during the culture period, which would presumably lead to a slight drop in the final Chl content as the decrease of nitrogen source would influence the protein synthesis and chlorophyll synthesis (46,47). While the inlet CO 2 was increased from 6% to 15%, the final Chl content of the wild strain decreased.…”

Section: Resultsmentioning

confidence: 97%

Culture characteristics of the atmospheric and room temperature plasma-mutated Spirulina platensis mutants in CO2 aeration culture system for biomass production

Tan

Fang

Jin

et al. 2015

Journal of Bioscience and Bioengineering

View full text Add to dashboard Cite

For biomass production of Spirulina platensis as feedstock of fermentation, the culture characteristics of three typical mutants of 3-A10, 3-B2 and 4-B3 generated by atmospheric and room temperature plasmas (ARTP) mutagenesis were systematically studied by using CO2 aeration culture system and compared with the wild strain. The specific growth rate of wild strain in the pure air aeration culture system exhibited a 76.2% increase compared with static culture, while the specific growth rates of the 3-A10, 3-B2 and 4-B3 in pure air aeration culture system were increased by 114.4%, 95.9% and 88.2% compared with their static cultures. Compared with static culture, the carbohydrate contents of wild strain, 3-A10, 3-B2 and 4-B3 in pure air aeration culture system dropped plainly by 51.0%, 79.3%, 85.5% and 26.1%. Increase of CO2 concentration enhanced carbohydrate content and productivity. Based on the carbohydrate productivity, the optimal inlet of CO2 concentration in aeration culture was determined to be 12% (v/v). Under this condition, 3-B2 exhibited the highest carbohydrate content (30.7%), CO2 fixation rate (0.120gCO2·g(-1)·d(-1)) and higher growth rate (0.093 g L(-1)·d(-1)), while 3-A10 showed the highest growth rate (0.118 g L(-1)·d(-1)) and higher CO2 fixation rate (0.117gCO2·g(-1)·d(-1)) but low carbohydrate content (24.5%), and 4-B3 showed the highest chlorophyll (Chl) content (3.82 mg·g(-1)). The most outstanding mutant by static culture in terms of growth rate and carbohydrate productivity (3-B2), was also demonstrated by CO2 aeration culture system. This study revealed that the ARTP mutagenesis could generate the S. platensis mutants suitable for CO2 aeration culture aiming at biomass production.

show abstract

“…Several studies have reported that the cyanobacterium Arthrospira platensis produces phycocyanin as the main pigment, but it also produces allophycocyanin and small amounts of phycoerythrin Silva, 2008;Ajayan et al, 2012). Dn the other hand, the presence of phycoerythrin in Arthrospira platensis was not detected according to other studies (Akimoto et al, 2012;Bolychevtseva et al, 2003).…”

Section: Introductionmentioning

confidence: 95%

Production of phycobiliproteins by Arthrospira platensis under different lightconditions for application in food products

Rizzo¹,

Santos²,

Castro³

et al. 2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

There has been an increase in investment in research on new sources of natural pigments for food application. Some cyanobacteria can change the structures responsible for light harvesting and cellular processes according to the wavelength and light intensity. This phenomenon has been described as complementary chromatic adaptation. The present study aimed to investigate the growth of Arthrospira platensis using different light qualities, irradiance, and wavelength by evaluating the production of biomass, proteins, and phycobiliproteins. The occurrence of the chromatic adaptation phenomenon in this cyanobacterium was also investigated. The microorganism used in this study, A. platensis, was grown in a Zarrouk medium under three irradiance levels, 50, 100, and 150 μmol fotons.m ). There was no difference in the production of total protein and total phycobiliproteins under the studied conditions. It is likely that the large supply of nitrogen in the Zarrouk medium was sufficient for cell growth and maintenance, and it supplied the production of accessory pigments composed of protein. Finally, there was no evidence of the complementary chromatic adaptation phenomenon in A. platensis cultivated under green light. Moreover, this condition did not increase phycocyanin production.

show abstract

Enrichment of chlorophyll and phycobiliproteins in Spirulina platensis by the use of reflector light and nitrogen sources: An in-vitro study

Cited by 67 publications

References 21 publications

Biomass production by Arthrospira platensis under different culture conditions

Biomass production by Arthrospira platensis under different culture conditions

Culture characteristics of the atmospheric and room temperature plasma-mutated Spirulina platensis mutants in CO2 aeration culture system for biomass production

Production of phycobiliproteins by Arthrospira platensis under different lightconditions for application in food products

Contact Info

Product

Resources

About