Outdoor cultivation of <i>Dunaliella salina</i> KU 11 using brine and saline lake water with raceway ponds in northeastern Thailand

Wu, Zhe; Dejtisakdi, Wipawee; Kermanee, Prasart; Ma, Chunyan; Arirob, Wallop; Sathasivam, Ramaraj; Juntawong, Niran

doi:10.1002/bab.1537

Cited by 24 publications

(16 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…the marine/lake-salt industry, mainly in sunny and warm climate (USA, Israel, China, Australia, Japan, India) (Ben-Amotz, 2003;Borowitzka, 2013). Possibility of D. salina cultivation was studied at Spain (García-González et al, 2003), Iran (Tafreshi & Shariati, 2006), UAE (Kitto & Resinald, 2011), Thailand (Wu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Production Characteristics of Dunaliella salina at Two-phase Pilot Cultivation (Crimea)

Боровков¹,

Gudvilovich²,

Avsiyan³

et al. 2020

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

Productional and biochemical characteristics of green alga Dunaliella salina (Dunal) Teodoresco were studied during pilot cultivation at the southwest of Crimean Peninsula, Russia. Two-phase cultivation was carried out in ponds located in the greenhouse module. In the "green" phase, biomass concentration reached 1.2 g/l, with maximum cell density of 1.69•10 6 cell/ml and the maximum productivity of 0.08 g/(l•day) (7 g/(m 2 •day)). Twofold culture dilution was applied for carotenogenesis induction. The maximum cell density in the "red" phase was 0.84•10 6 cell/ml, while biomass reached 0.95 g/l. Mean net carotenoid accumulation rate at the second stage (1-6 day) was 0.65 mg/(l•day). Carotenoids content in culture doubled compared to initial values and reached about 20 mg/l or 800 mg/m 2. Carotenoids/chlorophyll a ratio of 11.6 was observed by the end of the "red" phase. Night biomass loss was higher in the "red" phase (up to 9.5% of biomass) compared to the "green" phase (up to 5.6%). Optimal duration of both the first and the second cultivation stages was found to be 10-12 days for the studied weather conditions, which enables production of 3 g of carotenoids from 1 m 2 (100 l) of starter culture. In conclusion, Crimea is a prospective region for D. salina algobiotechnology.

show abstract

Section: Introductionmentioning

confidence: 99%

Production Characteristics of Dunaliella salina at Two-phase Pilot Cultivation (Crimea)

Боровков¹,

Gudvilovich²,

Avsiyan³

et al. 2020

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

“…Microalgae Dunaliella Salina strain KU 11 (Wu et al, 2017) were cultured in transparent glass chambers (30 cm × 60 cm × 40 cm) using a modified Jonson's medium with 2 M NaCl (Wu et al, 2017). Each chamber contained 50 litres of medium and illuminated by fluorescent lamps with an average light intensity of 54 µmol m -2 s -1 from top for 24 h day -1 .…”

Section: Methodsmentioning

confidence: 99%

“…To demonstrate the microalgae harvesting in a commercial scale, the microalgae Dunaliella Salina strain KU 11 were cultured in raceway tanks with a volume of 800 liters with outdoor conditions (Wu et al, 2017) in a salt production company located in Nakhon Ratchasima, Thailand (15• 8.4 N, 101• 9.4 E).…”

Section: Methodsmentioning

confidence: 99%

Electro-flotation harvesting of microalgae using a combination of electrode types

et al. 2019

View full text Add to dashboard Cite

This study aimed to search for a proper system for electro-flotation harvesting of microalgae Dunaliella salina with a minimization of metal contamination. An applied electrical current caused cell aggregation and produced small bubbles which levitated cell clusters to the top surface. Since no electrolytic erosion for cathodes (negative electrodes), we tested the harvesting by using planar cathodes, lying in the bottom of the reactor, made from different materials and forms. For a given electrical current, all cathodes resulted in a similar harvesting efficiency as well as the energy consumption. Unlike the cathode, the anode (positive electrodes) usually erodes in the electrolytic process. To avoid contamination of released metal, we used only graphite plates as the anode. Different settings of graphite anode plates (located above the cathode) were studied. For a given electrical current, all cases of anode settings had a similar harvesting efficiency but the energy consumption increased with the distance between the anode and the cathode. For a given setup of electrodes, we showed that both the harvesting efficiency and the energy consumption increased with the applied electrical current. By considering the above results as well as the fact that the stainless steel plate is cheaper and easier to handle in comparison to the graphite plate, we suggest that a combination of graphite anode and stainless steel cathode is an appropriate set for microalgae harvesting with an avoidance of metal contamination. Furthermore, for a convenience of the collection of the levitated microalgae cells, the top surface should be leaved widely opened by setting the graphite anode plates near the wall of the reactor. Finally, a large scale harvesting of the microalgae cultured with outdoor conditions is demonstrated in Nakhon Ratchasima, Thailand.

show abstract

“…In the next step, the lipid could be converted into biodiesels . It is critical to obtain enough biomass of microalgae for successful algal biodiesel development . The CO 2 fixation by microalgae under photoautotrophic conditions could be a negative carbon emission process.…”

Section: Introductionmentioning

confidence: 99%

Kinetic model for effects of simulated flue gas onto growth profiles of Chlorella sp. AE10 and Chlorella sp. Cv

Cheng

Yuan

et al. 2019

Biotech and App Biochem

View full text Add to dashboard Cite

Microalgae are potential candidate for biofuel production as alternative one for fossil fuels. CO 2 in flue gas is available carbon source to support microalgae growth. In this study, the effects of different concentrations of the simulated flue gas onto algal growth and photosynthetic activity were evaluated for both Chlorella sp. AE10 and Chlorella sp. Cv. The growth profiles were correlated by a simple kinetic model. It was indicated that the simulated flue gas led to low pH and the photosynthetic activity was partially destroyed. Chlorella sp. Cv can tolerate full simulated flue gas, 10% CO 2 + 200 ppm NO x + 100 ppm SO x. The pH in medium maintained at 6 and the photosynthetic activity was more than 0.6 at the first 6 days. If the concentration of NO x was more 100 ppm and that of SO x was more than 50 ppm, the pH was declined to 4 at day 2 or 3 for Chlorella sp. AE10. At the same time, the related photosynthetic activities of Chlorella sp. AE10 were less than 0.4, which was not suitable for algal growth. It was shown that Chlorella sp. Cv could be used for CO 2 fixation from the simulated flue gas.

show abstract

Outdoor cultivation of Dunaliella salina KU 11 using brine and saline lake water with raceway ponds in northeastern Thailand

Cited by 24 publications

References 23 publications

Production Characteristics of Dunaliella salina at Two-phase Pilot Cultivation (Crimea)

Production Characteristics of Dunaliella salina at Two-phase Pilot Cultivation (Crimea)

Electro-flotation harvesting of microalgae using a combination of electrode types

Kinetic model for effects of simulated flue gas onto growth profiles of Chlorella sp. AE10 and Chlorella sp. Cv

Contact Info

Product

Resources

About