The use of response surface methodology for improving fatty acid methyl ester profile of Scenedesmus vacuolatus

Ghosh, Atreyee; Samadhiya, Kanchan; Kashyap, Mrinal; Anand, Vishal; Sangwan, Pritam; Kiran, Boggavarapu

doi:10.1007/s11356-019-07115-5

Cited by 8 publications

(3 citation statements)

References 31 publications

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“…Another nutrient of great importance is phosphate, which is essential for starch and sucrose synthesis; however, high concentrations of P inhibit the action of enzymes such as ADP-glucose phosphorylase [134]. In microalgae, carbohydrates are generally found in different concentrations depending on the species and culture conditions; however, few species can synthesize a high carbohydrate content [134]. Porphyridium cruentum can accumulate carbohydrates up to 57% of its dry weight, while Chlamydomonas sp.…”

Section: Discussionmentioning

confidence: 98%

“…According to de Farias Silva et al [133], nitrogen limitation causes an interruption in amino acid synthesis, and photosynthetically fixed carbon in the Calvin cycle is then converted to carbohydrates. Another nutrient of great importance is phosphate, which is essential for starch and sucrose synthesis; however, high concentrations of P inhibit the action of enzymes such as ADP-glucose phosphorylase [134]. In microalgae, carbohydrates are generally found in different concentrations depending on the species and culture conditions; however, few species can synthesize a high carbohydrate content [134].…”

Section: Discussionmentioning

confidence: 99%

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Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

et al. 2022

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This study evaluated the role of C/N/P in the increase in the synthesis of carbohydrates, proteins, and lipids in two high-mountain strains of algae (Chlorella sp. UFPS019 and Desmodesmus sp. UFPS021). Three carbon sources (sodium acetate, sodium carbonate, and sodium bicarbonate), and the sources of nitrogen (NaNO3) and phosphate (KH2PO4 and K2HPO4) were analyzed using a surface response (3 factors, 2 levels). In Chlorella sp. UFPS019, the optimal conditions to enhance the synthesis of carbohydrates were high sodium carbonate content (3.53 g/L), high KH2PO4 and K2HPO4 content (0.06 and 0.14 g/L, respectively), and medium-high NaNO3 (0.1875 g/L). In the case of lipids, a high concentration of sodium acetate (1.19 g/L) coupled with high KH2PO4 and K2HPO4 content (0.056 and 0.131 g/L, respectively) and a low concentration of NaNO3 (0.075 g/L) drastically induced the synthesis of lipids. In the case of Desmodesmus sp. UFPS021, the protein content was increased using high sodium acetate (2 g/L), high KH2PO4 and K2HPO4 content (0.056 and 0.131 g/L, respectively), and high NaNO3 concentration (0.25 g/L). These results demonstrate that the correct adjustment of the C/N/P ratio can enhance the capacity of high-mountain strains of algae to produce high concentrations of carbohydrates, proteins, and lipids.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

et al. 2022

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“…Therefore, understanding and exploring the biochemical profile of each microalgal species would help us to design a sustainable and cost-effective method to produce bio-fuels, bio-ethanol, protein, and omega fatty acid supplements. Within past few years, multiple studies have tried to explore various strategies and methods to explore and enhance either lipid accumulation, [12][13][14] or accumulation of various pigments, 15 or certain value-added secondary metabolites [16][17][18][19][20][21] in microalgal cells. However, only a handful of reports are available which compare entire biomass profile of various microalgal species at different growth phases.…”

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confidence: 99%

Bioprospecting of native algal strains with unique lipids, proteins, and carbohydrates signatures: A time dependent study

Samadhiya

Ghosh

Kashyap

et al. 2021

Env Prog and Sustain Energy

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Aim of this study is uncovering potential strains of microalgae from Indore, Madhya Pradesh situated in central India with a diverse climate for sustainable production of different bio-products. Assessing the entire biochemical profile is crucial to select species-specific metabolites for sustainability of algal bio-refinery processes. In the current study, seven algal species (C. proboscideum, Desmodesmus psuedocommunis, Asterarcys quadricellulare, Ettlia texensis, Pediludiela daitoensis, Coelastrella sp., Pectinodesmus sp.) were isolated and identified using Internal Transcribed Spacer (ITS) and 18 s rRNA sequences, and these species found to be from the Chlorophyta phylum. The highest biomass productivity (51.25 ± 1.96 μg/ml/day) with chlorophyll content (33.07 ± 0.63 μg/ml) was observed in A. quadricellulare on 21st day (P < 0.0001). Biochemical profiling of isolated species showed each species is unique in its biochemical composition (total lipids, carbohydrates, and proteins). Coelastrella sp. and Pectinodesmus sp. was found to be accumulating considerable quantities of (P < 0.0001) carbohydrates (303.3 ± 1.11 μg/mg dry cell weight) and lipids (212.67 ± 2.53 μg/mg per dry cell weight), respectively. Whereas P. daitoensis was found best (P < 0.0001) for protein production (205.78 ± 2.56 μg/mg dry cell weight), on 21st day. Highest total fatty acid content was detected in Pectinodesmus sp. (115.74 μg/ mg) on 21st day, which has shown good saturated fatty acid (SFA) and mono unsaturated fatty acid (MUFA) percentage, inflicting high quality biodiesel production. Confocal microscopy further supported the data. Assessing the biochemical profile at different phases of growth for each species therefore reduce the production time of biofuels as well as make this process much more cost-effective.

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A review on microalgal growth stress parameters for sustainable biofuel production

Polat

Altınbaş

2023

Clean Techn Environ Policy

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The use of response surface methodology for improving fatty acid methyl ester profile of Scenedesmus vacuolatus

Cited by 8 publications

References 31 publications

Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

Enhancement of Metabolite Production in High-Altitude Microalgal Strains by Optimized C/N/P Ratio

Bioprospecting of native algal strains with unique lipids, proteins, and carbohydrates signatures: A time dependent study

A review on microalgal growth stress parameters for sustainable biofuel production

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