Heterotrophic cultivation of mixed microalgae for lipid accumulation and wastewater treatment during sequential growth and starvation phases: Effect of nutrient supplementation

Devi, M. Prathima; Subhash, G. Venkata; Mohan, S. Venkata

doi:10.1016/j.renene.2011.11.021

Cited by 190 publications

(46 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3a which depicts TG curves of similar shape as reported for C. reinhardtii [28]. The TG profiles of biomass in N (+) medium shows (Fig.…”

Section: Thermal Analysis and Activation Energy Determinationsupporting

confidence: 73%

“…Elemental analysis of C. debaryana exhibited a carbon content of 44.82 ± 0.79 % as listed in Table 1. The presence of oxygen (42.49 ± 0.254 %) and HHV (17.44 ± 0.795 MJ kg −1 ) was calculated by weight difference [28]. However, the presence of high volatile matter and lower nitrogen and sulfur content leading to lessens the emission of SO x and NO x to the atmosphere which validates C. debaryana biomass collected from indoor photobioreactor is potential for biofuel application [29].…”

Section: Resultsmentioning

confidence: 89%

See 1 more Smart Citation

Assessment of a Novel Algal Strain Chlamydomonas debaryana NIREMACC03 for Mass Cultivation, Biofuels Production and Kinetic Studies

Mishra

Singh

Sarma

2015

Appl Biochem Biotechnol

View full text Add to dashboard Cite

A novel microalgae strain Chlamydomonas debaryana (KJ210856) was isolated from a freshwater lake of Punjab, India, and cultivated considering climatic sustainability and inherent adaptability concern. C. debaryana was grown in a 30-L indoor photobioreactor to study the mass cultivation prospect and biofuel potential. Physicochemical characterization of biomass and the lipid was performed with effect to nitrogen stress. It showed a higher biomass yield (1.58 ± 0.02 g L(-1), dry weight) and twofold increase in lipid yield (552.78 ± 9 mg L(-1)) with 34.2 ± 0.19 % lipid content under nitrogen deficient condition. Strikingly, increase in triglycerides achieved with nitrogen depletion containing over 96 % of total fatty acids (C 14, C 16, and C 18). Proximate and ultimate analysis suggested the presence of relatively higher volatile matter and carbon-hydrogen ratio. Furthermore, lower moisture and ash content signified C. debaryana biomass has promising features towards biofuel applications. The pyrolytic behavior of the whole biomass was also studied using thermogravimetric analyzer (TGA) and kinetic parameters were estimated using different methods. Promising growth rate and lipid yield leading to feasible biofuel feed stock production in indoor photobioreactor along with autosediment potential of cells validates C. debaryana NIREMACC03, a potential strain for mass cultivation.

show abstract

“…3a which depicts TG curves of similar shape as reported for C. reinhardtii [28]. The TG profiles of biomass in N (+) medium shows (Fig.…”

Section: Thermal Analysis and Activation Energy Determinationsupporting

confidence: 73%

Section: Resultsmentioning

confidence: 89%

Assessment of a Novel Algal Strain Chlamydomonas debaryana NIREMACC03 for Mass Cultivation, Biofuels Production and Kinetic Studies

Mishra

Singh

Sarma

2015

Appl Biochem Biotechnol

View full text Add to dashboard Cite

show abstract

“…Heterotrophic cultivation of mixed microalgae had also been used for urban and domestic wastewater treatment. As an example, Prathima et al (2012) studied the effect of nutrients, such as nitrogen, phosphorus, carbon and potassium, on biomass growth and lipid accumulation. During the growth phase, a biomass concentration of 1.69 g DCW /L was obtained.…”

Section: Microalgae That Are Able To Grow Without Lightmentioning

confidence: 99%

Heterotrophic growth of microalgae: metabolic aspects

Morales‐Sánchez

Martinez-Rodriguez

Kyndt

et al. 2014

World J Microbiol Biotechnol

134

View full text Add to dashboard Cite

Microalgae are considered photoautotrophic organisms, however several species have been found living in environments where autotrophic metabolism is not viable. Heterotrophic cultivation, i.e. cell growth and propagation with the use of an external carbon source under dark conditions, can be used to study the metabolic aspects of microalgae that are not strictly related to photoautotrophic growth and to obtain high value products. This manuscript reviews studies related to the metabolic aspects of heterotrophic grow of microalga. From the physiological and metabolic perspective, the screening of microalgal strains in different environments and the development of molecular and metabolic engineering tools, will lead to an increase in the number of known microalgae species that growth under strict heterotrophic conditions and the variety of carbon sources used by these microorganisms.

show abstract

“…Estes estudos consideraram exclusivamente rotas fotossintéticas para a remoção biológica de fosfato. Por outro lado, Devi et al (2012) citam taxas de remoção de fosfato em efluente doméstico de 1,0 mg/L.h por um consórcio de microlgas em um biorreator heterotrófico. VIEIRA, J. G.; JACOB-LOPES, E.; MANETTI, A. G. S.; QUEIROZ, M. I. Influência da temperatura na remoção de fosfato por microalgas em biorreatores heterotróficos.…”

Section: Resultsunclassified

“…Diversos sistemas têm sido desenvolvidos considerando o metabolismo fotossintético destes organismos em lagoas de alta taxa (Phang et al, 2000;Powell et al, 2006Powell et al, , 2008Powell et al, , 2009, além de outras configurações de fotobiorreatores (Gonzales et al, 1997;Singh e Thomas, 2012). Estudos restritos, no entanto, têm sido direcionados para elucidar o potencial do metabolismo heterotrófico de microalgas para esta finalidade (Devi et al, 2012).…”

Section: Introductionunclassified

Influencia da temperatura na remocao de fosfato por microalgas em biorreatores heterotroficos

Vieira¹,

Jacob‐Lopes²,

Manetti³

et al. 2012

Ambi-Agua

View full text Add to dashboard Cite

RESUMONeste trabalho, a eficiência da cianobactéria Aphanothece microscopica Nägeli em remover heterotroficamente fosfato total dissolvido do efluente do processamento de laticínios foi avaliada. Os experimentos foram conduzidos em biorreatores operados descontinuamente, alimentados com 4,5 L de efluente. As condições experimentais foram: concentração celular inicial de 0,2 g/L, pH ajustado a 7,6, reator isotérmico operando em temperaturas de 10, 20 e 30ºC, ausência de luminosidade e aeração contínua de 1 VVM. Os resultados mostraram que a remoção de fosfato é fortemente dependente da temperatura do processo. A cianobactéria A. microscopica Nägeli foi efetiva na remoção de fosfato, alcançando taxas de remoção de 3,77 mg/L.h, que refletiram em conversões de 98,4% em tempos de detenção hidráulica de 24 h.Palavras-chave: microalgas, biorreator heterotrófico, fosfato, efluente de laticínios. Influence of temperature in phosphate removal by microalgae in heterotrophic bioreactors ABSTRACTThe removal of total dissolved phosphate by the cyanobacteria Aphanothece microscopica Nägeli cultivated heterotrophically in dairy processing wastewater was investigated in this work. The experiments were carried out in bioreactors operating in a batch mode, fed with 4.5 L of wastewater. The experimental conditions were as follows: initial cell concentration of 0.2 g/L, pH adjusted to 7.6, isothermal reactor operating at temperatures of 10, 20 and 30ºC with absence of light and continuous aeration of 1 VVM. The results showed that phosphate removal is strongly dependent on process temperature. A. microscopica Nägeli was effective in the removal phosphate achieving removal rates of 3.77 mg/L.h, which reflected in the conversion of 98.4% in hydraulic detention times of 24 h.

show abstract

Heterotrophic cultivation of mixed microalgae for lipid accumulation and wastewater treatment during sequential growth and starvation phases: Effect of nutrient supplementation

Cited by 190 publications

References 31 publications

Assessment of a Novel Algal Strain Chlamydomonas debaryana NIREMACC03 for Mass Cultivation, Biofuels Production and Kinetic Studies

Assessment of a Novel Algal Strain Chlamydomonas debaryana NIREMACC03 for Mass Cultivation, Biofuels Production and Kinetic Studies

Heterotrophic growth of microalgae: metabolic aspects

Influencia da temperatura na remocao de fosfato por microalgas em biorreatores heterotroficos

Contact Info

Product

Resources

About