Outdoor cultivation of the green microalga Chlorella minutissima in mini pond system under batch and fed-batch modes integrating low-dose sequential phosphate addition (LDSPA) strategy for biodiesel production

Sonkar, Sashi; Deb, Dipanwita; Mallick, Nirupama

doi:10.1016/j.biombioe.2020.105596

Cited by 19 publications

(2 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For drying experiments, C. minutissima was cultivated in raceway ponds (disco‐rectangular shape) with a volumetric capacity of 40,000 L each (14 × 4 × 0.75 m, Figure 2). Before cultivation in raceway ponds, the selected microalga was scaled‐up in the UZn medium, 31 and was acclimatized to the outdoor condition as detailed in Sonkar et al 32 The raceway ponds were operated at 30 cm culture depth with a corresponding culture volume of 16,000 L. Harvesting of biomass was carried out by the pH‐induced flocculation using NaOH following Koley et al 33 …”

Section: Methodsmentioning

confidence: 99%

A machine learning approach in drying of microalga Chlorella minutissima in a single rotary drum dryer for biodiesel production

Sonkar

Shibani

Mallick

2021

Environ Prog Sustainable Energy

Self Cite

View full text Add to dashboard Cite

Drying of Chlorella minutissima slurry was carried out in a single rotary drum dryer at varied drum surface temperature and rotational speed to achieve higher lipid yield for biodiesel conversion. Residual moisture content and lipid yield of the corresponding drum speed and drum surface temperature were mapped. Application of the machine learning tool classified the range of residual moisture content to be <10% (wet biomass) for high lipid recovery with an accuracy of 97%. Based on the drying time, lipid recovery, and energy consumption, drying at 80°C drum surface temperature with 0.3 rpm resulted ˃90% lipid recovery as compared to the bone‐dried biomass. The energy consumption of 7.328 kWh for 1 kg of dried biomass was recorded with profound reduction in drying time as compared to oven and tray drying of algal slurry. The fatty acid methyl ester profile of C. minutissima biodiesel constituted higher proportion of saturated fatty acids followed by monounsaturated fatty acid and polyunsaturated fatty acids. Various fuel characteristics, namely, viscosity, density, free glycerin, triglycerides, diglycerides, monoglycerides, copper strip corrosion, flash point, cetane index, iodine value, calorific value, acid value, saponification value, phosphorous, sulfur, water, and ash contents were analyzed, and showed values within the specified limits of national and international biodiesel standards. Thus, considering the drying time, energy consumption, and lipid recovery with suitable fuel properties, the drum dryer could be recommended for drying the microalgal slurry for large‐scale operation.

show abstract

Section: Methodsmentioning

confidence: 99%

A machine learning approach in drying of microalga Chlorella minutissima in a single rotary drum dryer for biodiesel production

Sonkar

Shibani

Mallick

2021

Environ Prog Sustainable Energy

Self Cite

View full text Add to dashboard Cite

show abstract

“…(2016), cultures grown outdoor had better performance than cultures grown indoor as it concerns lipid content and fatty acid profiles. However, the productivity is compromised by some environmental factors such as fluctuations in light intensity and temperature, depending on time and season (Sonkar et. al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Growth, lipids, proteins, and carotenoid contents of some freshwater green microalgae under simulated day/night temperature fluctuation

Eze¹,

Ogbonna²,

Ogbonna³

2022

Nig. J. Biotechnol

View full text Add to dashboard Cite

Day/night or seasonal temperature fluctuation is a major factor during outdoor cultivation of microalgae. In the present study, we investigated the impact of simulated day/night temperatures (20oC night and 30oC day) on the growth, lipid, protein and carotenoid contents of four local oleaginous microalgae strains under mixotrophic and heterotrophic conditions. The impact of simulated day/night temperatures on the growth and biochemical compositions varied across species and culture conditions (mixotrophic or heterotrophic). The lipid productivity by Dictyosphaerium sp. under heterotrophic condition was twice the value obtained at constant temperature but showed no significant (p > 0.05) impact under mixotrophic condition. Desmodesmus subspicatus elicited higher lipid (15%) and carotenoid (56%) contents under simulated day/night temperature regime than at constant temperature (30oC) (p<0.05). There was a negative impact on the protein content of the microalgal species under mixotrophic and heterotrophic conditions. The above results have shown that these species have high potentials for co-production of lipids, protein and carotenoid under outdoor conditions.

show abstract

Intracellular metabolomic profiling of Picochlorum sp. under diurnal conditions mimicking outdoor light, temperature, and seasonal variations

Pritam,

Manjre,

Shukla

et al. 2024

Metabolomics

View full text Add to dashboard Cite

Outdoor cultivation of the green microalga Chlorella minutissima in mini pond system under batch and fed-batch modes integrating low-dose sequential phosphate addition (LDSPA) strategy for biodiesel production

Cited by 19 publications

References 53 publications

A machine learning approach in drying of microalga Chlorella minutissima in a single rotary drum dryer for biodiesel production

A machine learning approach in drying of microalga Chlorella minutissima in a single rotary drum dryer for biodiesel production

Growth, lipids, proteins, and carotenoid contents of some freshwater green microalgae under simulated day/night temperature fluctuation

Intracellular metabolomic profiling of Picochlorum sp. under diurnal conditions mimicking outdoor light, temperature, and seasonal variations

Contact Info

Product

Resources

About