Combination Effect of Temperature and Light Intensity on Lipid Productivity of <i>Tetradesmus obliquus</i>

Nadzir, Syafiqah Md; Yusof, Norjan; Nordin, Norazela; Abdullah, Hanisom; Kamari, Azlan

doi:10.1088/1742-6596/1097/1/012038

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…and Tetradesmus sp. were reported, on average, as 0.45 ± 0.19 d −1 (n =11) [15][16][17][18][19][20] and 0.27 ± 0.11 d −1 (n = 10) [20][21][22][23][24], respectively. Taking into consideration the specific growth rates reported in Table 2 and the results of Tukey's HSD test, the ACs can be classified as follows:…”

Section: Microalgae Consortia Growthmentioning

confidence: 97%

Growth Performance, Biochemical Composition and Nutrient Recovery Ability of Twelve Microalgae Consortia Isolated from Various Local Organic Wastes Grown on Nano-Filtered Pig Slurry

Dell’Orto

Scaglia

et al. 2022

Molecules

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This paper demonstrated the growth ability of twelve algae-microbial consortia (AC) isolated from organic wastes when a pig slurry-derived wastewater (NFP) was used as growth substrate in autotrophic cultivation. Nutrient recovery, biochemical composition, fatty acid and amino acid profiles of algae consortia were evaluated and compared. Three algae-microbial consortia, i.e., a Chlorella-dominated consortium (AC_1), a Tetradesmus and Synechocystis co-dominated consortium (AC_10), and a Chlorella and Tetradesmus co-dominated consortium (AC_12) were found to have the best growth rates (µ of 0.55 ± 0.04, 0.52 ± 0.06, and 0.58 ± 0.03 d−1, respectively), which made them good candidates for further applications. The ACs showed high carbohydrates and lipid contents but low contents of both proteins and essential amino acids, probably because of the low N concentration of NFP. AC_1 and AC_12 showed optimal ω6:ω3 ratios of 3.1 and 3.6, which make them interesting from a nutritional point of view.

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Section: Microalgae Consortia Growthmentioning

confidence: 97%

Growth Performance, Biochemical Composition and Nutrient Recovery Ability of Twelve Microalgae Consortia Isolated from Various Local Organic Wastes Grown on Nano-Filtered Pig Slurry

Dell’Orto

Scaglia

et al. 2022

Molecules

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“…This combination effect has been observed on Tetradesmus obliquus which performs well on 36°C with 434.75 mol m −2 s −1 . The T. obliquus obtained the maximum biomass production up to 115 mg l −1 d −1 under this condition [43]. However, other strains like Chlorella vulgaris exhibited the maximum cell growth up to 1.13 ± 0.04 day −1 when the cultivation was performed under light exposure of 100 μmol m −2 s −1 and temperature of 25 ± 0.5°C [44].…”

Section: Effect Of Temperature and Light Intensitymentioning

confidence: 84%

Microalgal biorefinery: Challenge and strategy in bioprocessing of microalgae carbohydrate for fine chemicals and biofuel

Meng¹,

Harun²,

Kamaludin³

2021

J App Biol Biotech

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Microalgal carbohydrate is one of the major macromolecule metabolites, which has recently gained great attention as an alternative feedstock for wide-range sustainable biobased products. These biopolymers can act as a chemical platform for the production of biofuels through a biochemical conversion process. However, low microalgal carbohydrate productivity at a large-scale production has become a major problem for economical biofuel production. Several strategies have been proposed and the approach only increased carbohydrate content but reduced the microalgal biomass production, resulting in low microalgal carbohydrate productivity. Besides, the inappropriate pretreatments and fermentation approaches specifically with high-energy techniques could cause an increase in the cost of biofuel production. This present review gives a comprehensive discussion on microalgal carbohydrate enhancement strategies via cultivation techniques including the influence of environmental stress on the microalgal biomass and carbohydrate productivity. This paper also reviews the state of art on downstream processing of microalgal biomass prior to the hydrolysis and fermentation process. The different fine chemicals such as bioethanol, biobutanol, and biohydrogen production from microalgal carbohydrate are also discussed. The information from this review provides a framework for bioconversion of microalgal carbohydrate for biofuel and fine chemicals. This production could be beneficial for potential industrial implementation.

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“…Culture temperatures below 15 °C are also considered unsuitable for photosynthesis and growth. High culture temperature has been reported to increase saturated fatty acids (Nadzir et al 2018 ) and lipid content as is observed in cases of Nannochloropsis salina and Ochromonas danica although, cultures of Chlorella sorokiniana showed almost no variation in lipid contents with changing temperatures (Chowdury et al 2020 ). Even though high temperatures increase saturated fatty acids, the unsaturated fatty acids percentage reportedly decreases (Chowdury et al 2020 ).…”

Section: Production Of Lipids By Microalgaementioning

confidence: 97%

“…below 15 °C are also considered unsuitable for photosynthesis and growth. High culture temperature has been reported to increase saturated fatty acids(Nadzir et al 2018) and lipid content as is observed in cases of Nannochloropsis salina and Ochromonas danica although, cultures of Chlorella sorokiniana showed almost no variation in lipid contents with changing temperatures…”

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confidence: 90%

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

et al. 2022

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In the current global scenario, the world is under a serious dilemma due to the increasing human population, industrialization, and urbanization. The ever-increasing need for fuels and increasing nutritional problems have made a serious concern on the demand for nutrients and renewable and eco-friendly fuel sources. Currently, the use of fossil fuels is creating ecological and economic problems. Microalgae have been considered as a promising candidate for high-value metabolites and alternative renewable energy sources. Microalgae offer several advantages such as rapid growth rate, efficient land utilization, carbon dioxide sequestration, ability to cultivate in wastewater, and most importantly, they do not participate in the food crop versus energy crop dilemma or debate. An efficient microalgal biorefinery system for the production of lipids and subsequent byproduct for nutraceutical applications could well satisfy the need. But, the current microalgal cultivation systems for the production of lipids and nutraceuticals do not offer techno-economic feasibility together with energy and environmental sustainability. This review article has its main focus on the production of lipids and nutraceuticals from microalgae, covering the current strategies used for lipid production and the major high-value metabolites from microalgae and their nutraceutical importance. This review also provides insights on the future strategies for enhanced microalgal lipid production and subsequent utilization of microalgal biomass. Graphical abstract

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Combination Effect of Temperature and Light Intensity on Lipid Productivity of Tetradesmus obliquus

Cited by 8 publications

References 26 publications

Growth Performance, Biochemical Composition and Nutrient Recovery Ability of Twelve Microalgae Consortia Isolated from Various Local Organic Wastes Grown on Nano-Filtered Pig Slurry

Growth Performance, Biochemical Composition and Nutrient Recovery Ability of Twelve Microalgae Consortia Isolated from Various Local Organic Wastes Grown on Nano-Filtered Pig Slurry

Microalgal biorefinery: Challenge and strategy in bioprocessing of microalgae carbohydrate for fine chemicals and biofuel

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

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