Biofuel and Biochemical Analysis of Amphora coffeaeformis RR03, a Novel Marine Diatom, Cultivated in an Open Raceway Pond

Rajaram, M.G.; Nagaraj, S.; Manubolu, Manjunath; Boopathy, Annakkili Baskara; Kurinjimalar, C.; Rengasamy, Ramasamy; Jayakumar, Thanasekaran; Sheu, Joen Rong; Li, Jiun Yi

doi:10.3390/en11061341

Cited by 15 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…microalgae are important commercially to produce algal products such as β-carotene (Pro-vitamin A), amino acids, lutein and phycocyanin (Badr et al 2017). Amphora coffeaeformis is a marine and fresh water diatom which produces biochemical components like protein, carbohydrates and lipids (Rajaram et al, 2018). In addition, Amphora coffeaeformis extract is rich with high levels of plant pigments like chlorophyll, carotenoids as βcarotene, macro and micro-elements especially phosphorous, iron and zinc and antioxidants components (El-Sayed et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Mitigating the Harmful Effects of Water Deficiency Stress on White Lupine (Lupinus albus L.) Plants by Using Algae Extract and Hydrogen Peroxide. تخفیف الآثار الضارة الناتجة عن اجهاد نقص المیاه على نباتات الترمس الأبیض باستخدام مستخلص الطحالب وفوق اکسید الهیدروجین.

Mogazy

Seleem

Mohamed

2020

Journal of Plant Production

View full text Add to dashboard Cite

Water deficit is a major growth limitation factor affecting plant growth and productivity. To counteract the harmful effects of drought stress, lupine plants were sprayed with two concentrations of algae extract (1 g L-1 and 2 g L-1) and hydrogen peroxide solution (0.5% and 1%) under low irrigation level. Morphological, physiological and anatomical studies were performed. It was found that all treatments enhanced plant height, root length, number of leaves, average leaf area, shoot and root fresh and dry weights. A significant increment in chlorophyll a and b, carotenoids and total pigments contents, as well as a significant decrease in electrolyte leakage was noted in treated plants compared with untreated under water deficit. Increment in levels of osmoprotectants such as proline, total free amino acids, glycine betaine and total soluble sugars contents was highly significant in case of 2 g L-1 algae extract treatment compared with untreated plants group. Anatomical studies of root, stem and leaf of treated and untreated plants revealed that 2 g L-1 algae extract treatment followed with 0.5% H2O2 induced significant increments in the thickness of the studied plant organs compared with the untreated plants under water deficit conditions. In general, the concentrations of 2 g L-1 algae extract and 0.5% H2O2 were the most effective doses regarding all the studied characteristics.

show abstract

Section: Introductionmentioning

confidence: 99%

Mitigating the Harmful Effects of Water Deficiency Stress on White Lupine (Lupinus albus L.) Plants by Using Algae Extract and Hydrogen Peroxide. تخفیف الآثار الضارة الناتجة عن اجهاد نقص المیاه على نباتات الترمس الأبیض باستخدام مستخلص الطحالب وفوق اکسید الهیدروجین.

Mogazy

Seleem

Mohamed

2020

Journal of Plant Production

View full text Add to dashboard Cite

show abstract

“…Carbon-nitrogen (C/N) ratio, pH, high salinity, temperature, and nitrogen depletion in the medium play a key role in boosting lipid formation (Kwak et al 2016). Amphora coffeaeformis RR03 produced a lipid of about 67.15% cultured in an open raceway pond (Rajaram et al 2018). In the semicontinuous mode in the open raceway pond (ORP) Chlorella vulgaris UTEX 26 was grown and produced the highest lipid of 6.1 g m -2 d -1 along with the periodic addition of NH4HCO3 and ammonia (Ramirez-Lopez et al 2019).…”

Section: Lipids and Their Derivatives: Eicosapentaenoic Acid Docosahe...mentioning

confidence: 99%

Development of sustainable bioproducts from microalgae biomass: Current status and future perspectives

Harini

Rajkumar

2022

BioRes

View full text Add to dashboard Cite

Population and pollution make notable contributions to introducing novel sophisticated techniques. From vehicles to industries, the release of CO2 into the atmosphere and wastewater into the running water streams are key concerns. On the other hand, the population is responsible for the rapid manufacturing of all commercial goods. Microalgae are the only answer accessible for the aforementioned difficulties. Similar to plants, microalgae need CO2 and light to thrive and produce a variety of bioproducts such as carbohydrates, protein, lipids, vitamins, sterols, pigments, and silica. Physical (light, temperature, CO2, and UV), chemical (nutrient addition or depletion), enzymatic, and metabolic pathway reconfiguration, as well as indoor or outdoor growing, are highly regarded among the several optimization strategies to make desired products. Wastewater pollution is rectified by growing microalgae in nutrient-rich organic water for their growth, which is used to accelerate bioproducts. This review considers the use of bioproducts in food, animal and aquatic feed, fertilizer, biofuel, medicinal and nutraceutical sectors. This paper also provides different optimization strategies, which include physical and chemical means of extraction methods for enhancing bioactive products. Challenges and future recommendations for enhancing target bioproducts are discussed to overcome environmental issues.

show abstract

“…This allows a best-performance comparison among different algal species and, for a given species, a comparison with the culture conditions that can be actually implemented. Large-scale algae culture is typically performed outdoors in open raceway ponds [34,94,105]. In this scenario, influential factors such as temperature and irradiance unavoidably vary diurnally and seasonally.…”

Section: Issues Of Optimalitymentioning

confidence: 99%

Production of Renewable Lipids by the Diatom Amphora copulata

et al. 2021

View full text Add to dashboard Cite

The asymmetric biraphid pennate diatom Amphora copulata, isolated from tropical coastal waters (South China Sea, Malaysia), was cultured for renewable production of lipids (oils) in a medium comprised of inorganic nutrients dissolved in dilute palm oil mill effluent (POME). Optimal levels of nitrate, phosphate, and silicate were identified for maximizing the biomass concentration in batch cultures conducted at 25 ± 2 °C under an irradiance of 130 µmol m−2 s−1 with a 16 h/8 h light-dark cycle. The maximum lipid content in the biomass harvested after 15-days was 39.5 ± 4.5% by dry weight in a POME-based medium with optimal levels of nitrate, phosphate, and silicate. Under the optimized conditions the maximum dry mass concentration of the diatom was 660 mg L−1 on day 12, declining to ~650 mg L−1 on day 15. For the 15-day batch operation, the final average productivities of the biomass and the lipids were 43.3 ± 4.5 mg L−1 d−1 and 17.1 ± 0.3 mg L−1 d−1, respectively. The fatty acids in the diatom lipids were found to be (%, w/w of total lipids): palmitoleic acid (39.8%), palmitic acid (31.9%), myristic acid (6.8%), oleic acid (4.7%), stearic acid (4.5%), arachidonic acid (3.9%), eicosapentaenoic acid (3.6%), linoleic acid (2.5%), tetracosanoic acid (1.7%), and linolenic acid (0.6%).

show abstract

Biofuel and Biochemical Analysis of Amphora coffeaeformis RR03, a Novel Marine Diatom, Cultivated in an Open Raceway Pond

Cited by 15 publications

References 19 publications

Development of sustainable bioproducts from microalgae biomass: Current status and future perspectives

Production of Renewable Lipids by the Diatom Amphora copulata

Contact Info

Product

Resources

About