Cultivation of freshwater microalga &lt;i&gt;Scenedesmus&lt;/i&gt; sp. using a low-cost inorganic fertilizer for enhanced biomass and lipid yield

Nayak, Manoranjan; Thirunavoukkarasu, M.; Mohanty, R. C.

doi:10.2323/jgam.62.7

Cited by 26 publications

(12 citation statements)

References 32 publications

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“…Despite of the several benefits from this microalga, its commercial scale production is still not cost-effective if algae are required in large amount (Di Caprio et al 2015;Nayak et al 2016b). Xia and Murphy (2016) reported that in large-scale production, nutrient requirements can be up to 50% of the total cost of biomass production.…”

Section: Introductionmentioning

confidence: 99%

Supplementing wastewater with NPK fertilizer as a cheap source of nutrients in cultivating live food (Chlorella vulgaris)

2021

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Introduction The decline in fishery resources from the wild has led to an ever increasing focus on aquaculture in recent years. With increasing aquaculture of animal species, there is an increasing need for suitable microalgae in the production of these animals. However, cultivation of microalgae in expensive pure chemical media is one of the major challenges facing large-scale cultivation of microalgae. Purpose The present study investigated the suitability of aquaculture wastewater (AWW) supplemented with NPK (nitrogen:phosphorus:potassium) fertilizer as a cheap source of nutrient to cultivate a microalga Chlorella vulgaris (C. vulgaris). Methods C. vulgaris with an initial cell density of 0.8 × 106 cells/mL was batch cultured in AWW supplemented with NPK at 0.1, 0.5, 1.0 g/L and BBM for 20 days under laboratory conditions using 2000 mL Erlenmeyer flasks. The proximate composition, chlorophyll, minerals, and vitamins analysis of C. vulgaris biomass were done using standard analytical methods. Results The highest values in optical density (4.872 ± 0.025), dry cell weight (2.858 ± 0.015 g/L), specific growth rate (0.2097 ± 0.0038 day–1), and biomass productivity (0.1701 ± 0.0007 g/L/day) were obtained in C. vulgaris grown in AWW + 1.0 NPK medium. The total chlorophyll, protein, lipid, and carbohydrate content of the microalgae biomass were in the range of 0.05–0.862%, 44.062–57.089%, 17.064–23.260%, and 15.217–21.896%, respectively. Furthermore, microalgae grown in AWW + 1.0 NPK showed good vitamin and mineral content compared to BBM grown alga. Conclusion These findings indicated that the AWW + 0.1 NPK, AWW + 0.5 NPK, and AWW + 1.0 NPK are potential growth media for C. vulgaris cultivation and can replace the BBM medium, which is very expensive and less accessible to users.

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Section: Introductionmentioning

confidence: 99%

Supplementing wastewater with NPK fertilizer as a cheap source of nutrients in cultivating live food (Chlorella vulgaris)

2021

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“…The use of organic fertilizers such as animal excreta, sludge from wastewater, and anaerobic digestate with high nutrient contents has been proposed as an economical alternative for microalgae culture (Nayak et al 2016, Wang et al 2016a, El Shimi and Moustafa 2017, Liu et al 2017, Huy et al 2018. The use of wastewater (Gonçalves et al 2017, Ho et al 2019, Rodríguez-Mata et al 2019) and wastewater enriched with inorganic fertilizers, composed of N, P, and potassium (K), is an economical alternative for large-scale cultivation (Nayak et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Se ha propuesto la utilización de fertilizantes orgánicos como excretas animales, lodos de aguas residuales y digestatos anaerobios con alto contenido de nutrientes como una alternativa económica para el cultivo de microalgas (Nayak et al 2016, Wang et al 2016a, El Shimi y Moustafa 2017, Liu et al 2017, Huy et al 2018. La utilización de aguas residuales (Gonçalves et al 2017, Ho et al 2019, Rodríguez-Mata et al 2019) y aguas residuales enriquecidas con fertilizantes inorgánicos, compuestos por N, P y potasio (K), es una alternativa económica para el cultivo a gran escala (Nayak et al 2016).…”

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Production of metabolites from Scenedesmus sp. and a microalgal consortium cultured in unconventional media

et al. 2021

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Growth comparisons were made between a microalgal consortium and Scenedesmus sp. cultivated in treated wastewater (TWw) enriched with 1 mL·L–1 Bayfolan Forte fertilizer (BM), TWw enriched with (NH4)2HPO4 (PAM), TWw enriched with NH4HCO3 (BCAM), tap water with piggery wastewater (PEM), tap water with piggery wastewater digestate (PDM), and raw wastewater (Ww). Nitrogen (N) content in the media, except for TWw, was adjusted to 80 mg·L–1 N (NH4+-N and NO3–-N). Unconventional low-cost media with lower nutrient contents (BM and TWw) showed adequate productions of biomass and lipids. PEM was the most advantageous medium, showing the highest biomass productivity with the consortium (191.25 ± 6.25 g·L–1·d–1) and a lipid productivity of 36.75 ± 9.90 mg·L–1·d–1. The fatty acid profile was composed mainly of C16 and C18. PAM, PEM, and PDM showed a higher proportion of saturated fatty acids (60%–69%), whereas the composition of unsaturated fatty acids was in the range of 31% to 38%. In PEM and PDM the removal of NH4+ was 100%; however, there were NH4+ losses (as NH3) due to volatilization (46%). Unconventional media, especially Ww, are an option for growing microalgae.

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“…The medium has been used to grow Scenedesmus sp. and able to produce high lipids of 28.55% of the total biomass 25) . Comparison of NPK commercial fertilizers used, which is equal to 20:20:20.…”

Section: Introductionmentioning

confidence: 99%

Biomass Production of Indonesian Indigenous Leptolyngbya Strain on NPK Fertilizer Medium and its Potential as a Source of Biofuel

Prihantini¹,

Rakhmayanti²,

Handayani³

et al. 2020

Evergreen

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Leptolyngbya is one of the genera of Cyanobacteria (prokaryotic microalgae) which are often found in the hot spring area. These microalgae are known to have potential as a biofuels source. In order to utilize microalgae, it is necessary to make efforts to produce microalgae biomass in large quantities. Biomass production depends on many environmental factors, one of which is the medium. The use of appropriate media and cheaply be one option, since biomass must be produced in large scale. Therefore, research on variations in the concentration of NPK fertilizer medium against the growth of Leptolyngbya HS-16 compared to Bold Basal Medium (BBM) was carried out. NPK fertilizer medium (nitrogen/N, phosphorus/P and potassium/K) is an inexpensive microalgae growth medium. Leptolyngbya HS-16 or Leptolyngbia with strain code of HS-16 is a Leptolyngbia strain isolated from a habitat in the hot springs of Mount Pancar Crater in Indonesia. The purpose of the study was to determine the effect of NPK medium concentration on the biomass weight of Leptolyngbya HS-16. The medium used in the study was BBM as the control medium, and NPK media with various concentrations of 80 ppm, 160 ppm, and 240 ppm as the treatment medium. In addition, the study aimed to determine the appropriate concentration of NPK medium to produce high biomass weight, supported by high lipid content. The results showed that Leptolyngbya HS-16 grew better in NPK medium with a concentration of 80 ppm compared to other concentrations. This can be seen from the results of the average biomass produced at peak time of 3.008 mg. L -1 and the log length of the Leptolyngbya HS-16. The lipid content was produced in the 80 ppm NPK medium was 45%.

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Cultivation of freshwater microalga <i>Scenedesmus</i> sp. using a low-cost inorganic fertilizer for enhanced biomass and lipid yield

Abstract: of 28.55 and 18.87, respectively, in a stationary phase of the microalgae growth. The fatty acids methyl ester profile was proven to be desirable for biodiesel production.

Cited by 26 publications

References 32 publications

Supplementing wastewater with NPK fertilizer as a cheap source of nutrients in cultivating live food (Chlorella vulgaris)

Supplementing wastewater with NPK fertilizer as a cheap source of nutrients in cultivating live food (Chlorella vulgaris)

Production of metabolites from Scenedesmus sp. and a microalgal consortium cultured in unconventional media

Biomass Production of Indonesian Indigenous Leptolyngbya Strain on NPK Fertilizer Medium and its Potential as a Source of Biofuel

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