Stress hormones mediated lipid accumulation and modulation of specific fatty acids in Nannochloropsis oceanica CASA CC201

Udayan, Aswathy; Sabapathy, Hariharan; Arumugam, Muthu

doi:10.1016/j.biortech.2020.123437

Cited by 38 publications

(21 citation statements)

References 42 publications

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“…A similar effect was recorded with Parachlorella kessleri, where a positive correlation was recorded with IAA and microalgal growth [35]. Like the effect of high concentrations of IAA obtained in the present study, Udayen et al [7] stated that the high concentrations of methyl jasmonate (MeJA) and salicylic acid (SA) showed inhibitory effects on the growth of N. oceanica. On the other hand, combination of hormone supplementation with nitrogen depletion (T8-T12) showed a gradual increase of the dry weight by increasing of IAA but was still lower than the control.…”

Section: Effect On Biomass Productionsupporting

confidence: 87%

“…Application of different stress conditions, particularly nutrient starvation, leads to lipid bodies accumulation in the form of triacylglycerides (TAG). Among different nutrients, phytohormones are considered as a category of growth-accelerating chemicals found naturally in plants and algae at very low concentrations, and can be divided into several groups such as auxins, cytokinins, gibberellins, brassinosteroids, jasmonates and strigolactones [7]. These phytohormones are important for abiotic stress-tolerance in many crops [8], and affect the metabolic processes, cell division, propagation, elderliness, nutrient utilization, and sometimes inhibit the cellular metabolism.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Phytohormones Supplementation under Nitrogen Depletion on Biomass and Lipid Production of Nannochloropsis oceanica for Integrated Application in Nutrition and Biodiesel

Touliabah

Al-Mutairi

2021

Sustainability

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Economic viability of biodiesel production relies mainly on the productivity of biomass and microalgal lipids. In addition, production of omega fatty acids is favorable for human nutrition. Thus, enhancement of lipid accumulation with high proportion of omega fatty acids could help the dual use of microalgal lipids in human nutrition and biodiesel production through biorefinery. In that context, phytohormones have been identified as a promising factor to increase biomass and lipids production. However, nitrogen limitation has been discussed as a potential tool for lipid accumulation in microalgae, which results in simultaneous growth retardation. The present study aims to investigate the combined effect of N-depletion and 3-Indoleacetic acid (IAA) supplementation on lipid accumulation of the marine eustigmatophyte Nannochloropsis oceanica as one of the promising microalgae for omega fatty acids production. The study confirmed that N-starvation stimulates the lipid content of N. oceanica. IAA enhanced both growth and lipid accumulation due to enhancement of pigments biosynthesis. Therefore, combination effect of IAA and nitrogen depletion showed gradual increase in the dry weight compared to the control. Lipid analysis showed lower quantity of saturated fatty acids (SFA, 26.25%) than the sum of monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA). Under N-depletion, SFA decreased by 12.98% compared to the control, which recorded much reduction by increasing of IAA concentration. Reduction of SFA was in favor of PUFA, mainly omega-6 and omega-3 fatty acids which increased significantly due to IAA combined with N-depletion. Thus, the present study suggests a biorefinery approach for lipids extracted from N. oceanica for dual application in nutrition followed by biodiesel production.

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Section: Effect On Biomass Productionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Effect of Phytohormones Supplementation under Nitrogen Depletion on Biomass and Lipid Production of Nannochloropsis oceanica for Integrated Application in Nutrition and Biodiesel

Touliabah

Al-Mutairi

2021

Sustainability

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“…It is an edible microalga which can be used in functional food and in animal feeds. EPA productivity of Nannochloropsis is highly dependent on cultivation conditions and researchers are focused to enrich EPA productivity of Nannochloropsis in an ecofriendly and cost-effective manner [2,11,12,62]. Phaeodactylum tricornutum is also considered for commercial production of EPA.…”

Section: Microalgae As Major Players In Food Industrymentioning

confidence: 99%

“…1 Industrial applications of microalgae from microalgae include polysaccharides, proteins, polyunsaturated fatty acids, polyphenols, vitamins, minerals, carotenoids etc. [10][11][12]. The metabolites derived from microalgae have proven roles for the treatment and prevention of many disease conditions like diabetes, cardiac, autoimmune, rheumatoid arthritis, anemia, obesity, dementia, and other neurodegenerative diseases [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…But the major disadvantage of large-scale microalgal cultivation systems is low biomass production and difficulties in product recovery, which increases the cost of cultivation and final product prize. Researchers are still focused on the development of new methods to enhance the production of biomass from microalgae and decrease the commercial cultivation cost of microalgae [2,12]. Microalgal high-value metabolites are also used in several industries for the development of nutraceuticals, pharmaceuticals, cosmetic products, aquaculture and poultry feed, and as biofertilizers [2].…”

Section: Introductionmentioning

confidence: 99%

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Emerging industrial applications of microalgae: challenges and future perspectives

Udayan

Pandey

Sharma

et al. 2021

Syst Microbiol and Biomanuf

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Microalgae are unicellular photosynthetic organisms that have been recently attracted potential interests and have applications in food, nutraceuticals, pharmaceuticals, animal feed, cosmetics, and biofertilizers industry. Microalgae are rich in a variety of high-value bioactive compounds which have potential benefits on human health and can be used for the prevention and curing of many disease conditions. But scale-up and safety issues remain a major challenge in the commercialization of microalgal products in a cost-effective manner. However, techniques have been developed to overcome these challenges and successfully selling the products derived from microalgae as food, cosmetics and pharmaceutical industries. Microalgae are rich in many nutrients and can be used for the production of functional food and nutraceuticals, safety and regulatory issues are major concerns and extensive research is still needed to make microalgae a commercial success in the future. Many practical difficulties are involved in making the microalgal food industry commercially viable. The present review focuses on the industrial applications of microalgae and the challenges faced during commercial production.

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Microalgal Bioreactors for Pharmaceuticals Production

Toghueo¹

2023

Plants as Bioreactors for Industrial Molecules

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Stress hormones mediated lipid accumulation and modulation of specific fatty acids in Nannochloropsis oceanica CASA CC201

Cited by 38 publications

References 42 publications

Effect of Phytohormones Supplementation under Nitrogen Depletion on Biomass and Lipid Production of Nannochloropsis oceanica for Integrated Application in Nutrition and Biodiesel

Effect of Phytohormones Supplementation under Nitrogen Depletion on Biomass and Lipid Production of Nannochloropsis oceanica for Integrated Application in Nutrition and Biodiesel

Emerging industrial applications of microalgae: challenges and future perspectives

Microalgal Bioreactors for Pharmaceuticals Production

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