Abstract:Abstract. Nugroho RA, Subagyono DJN, Arung ET. 2020. Isolation and characterization of Botryococcus braunii from a freshwater environment in Tenggarong, Kutai Kartanegara, Indonesia. Biodiversitas 21: 2331-2336. The use of microalgae as an alternative source of oil has gained much attention in recent years. The present study was conducted to isolate and characterize microalgae Botryococcus braunii from a freshwater environment, located in Tenggarong, Kutai Kartanegara, East Kalimantan, Indonesia. B. braunii we… Show more
“…Botryococcus braunii has the ability to produce large amounts of hydrocarbons via a thermal conversion process, − making it a potential renewable energy source. The green microalgae can produce up to 65% lipids, , depending on growing conditions . Our previous study shows that the fatty acid composition in Botryococcus braunii was 99.8% unsaturated fatty acids and 0.2% saturated fatty acids …”
The pyrolysis of the green microalgae Botryococcus
braunii in the absence and the presence of Ni/SBA-15 prepared
by the ultrasonic-assisted
sol–gel was investigated using pyrolysis–gas chromatography–mass
spectroscopy (Py-GC/MS). Pyrolysis experiments were performed at 350,
450, and 550 °C under helium (He) flow. In the absence of a catalyst,
the chemical composition of pyrolysis products at different temperatures,
based on the relative peak area, comprised protein/amino acid derivative
products of 9–15%, carbohydrate derivative products of 5–10%,
lipid derivative products of 13–26%, and chlorophyll derivative
products of 24–26%. For catalytic pyrolysis, the chemical composition
of pyrolysis products comprised protein/amino acid derivative products
of 5–15%, carbohydrate derivative products of 18–19.5%,
lipid derivative products of 14–27%, and chlorophyll derivative
products of 15–20%. The addition of 10% Ni/SBA-15 enhanced
the production of aromatic compounds, such as furans, furfurals, alkyl
aromatics, and nitrogen aromatic compounds. These were the thermal
degradation products of carbohydrates and proteins. However, the amount
of fatty acids and phytol fragments in the pyrolysis of Botryococcus
braunii decreased in the presence of catalyst. Thermogravimetric
analyses showed that the temperature range for the pyrolysis of Botryococcus braunii was 135–547 °C, while that
of the catalyzed pyrolysis was 135–532 °C. There was a
decrease in pyrolysis yield after incorporating Ni/SBA-15, which may
be due to coke formation.
“…Botryococcus braunii has the ability to produce large amounts of hydrocarbons via a thermal conversion process, − making it a potential renewable energy source. The green microalgae can produce up to 65% lipids, , depending on growing conditions . Our previous study shows that the fatty acid composition in Botryococcus braunii was 99.8% unsaturated fatty acids and 0.2% saturated fatty acids …”
The pyrolysis of the green microalgae Botryococcus
braunii in the absence and the presence of Ni/SBA-15 prepared
by the ultrasonic-assisted
sol–gel was investigated using pyrolysis–gas chromatography–mass
spectroscopy (Py-GC/MS). Pyrolysis experiments were performed at 350,
450, and 550 °C under helium (He) flow. In the absence of a catalyst,
the chemical composition of pyrolysis products at different temperatures,
based on the relative peak area, comprised protein/amino acid derivative
products of 9–15%, carbohydrate derivative products of 5–10%,
lipid derivative products of 13–26%, and chlorophyll derivative
products of 24–26%. For catalytic pyrolysis, the chemical composition
of pyrolysis products comprised protein/amino acid derivative products
of 5–15%, carbohydrate derivative products of 18–19.5%,
lipid derivative products of 14–27%, and chlorophyll derivative
products of 15–20%. The addition of 10% Ni/SBA-15 enhanced
the production of aromatic compounds, such as furans, furfurals, alkyl
aromatics, and nitrogen aromatic compounds. These were the thermal
degradation products of carbohydrates and proteins. However, the amount
of fatty acids and phytol fragments in the pyrolysis of Botryococcus
braunii decreased in the presence of catalyst. Thermogravimetric
analyses showed that the temperature range for the pyrolysis of Botryococcus braunii was 135–547 °C, while that
of the catalyzed pyrolysis was 135–532 °C. There was a
decrease in pyrolysis yield after incorporating Ni/SBA-15, which may
be due to coke formation.
Las microalgas son microorganismos fotosintéticos los cuales pueden ser eucariotas (algas) o procariotas (cianobacterias) y pueden estar presentes en todos los hábitats de la tierra. Este artículo ofrece una descripción bibliográfica sobre análisis técnicos en la producción industrial de los principales metabolitos extraídos de Botryococcus braunii con el objetivo de analizar, determinar e identificar los avances científicos para la utilización de esta alga como un recurso potencial, por medio de una recopilación bibliométrica de 20 años sobre artículos de investigaciones demostrando gran interés en el campo de las microalgas. Se ha realizado este trabajo con el propósito de averiguar los estudios en el área de la microalga Botryococcus braunii y sus aplicaciones industriales, también determinar los principales metabolitos como hidrocarburos, exopolisacáridos, carotenoides, proteínas, en el aprovechamiento de procesos industriales como materiales, alimentos, productos farmacéuticos, nanopartículas y biocombustibles. Debido a sus vías metabólicas particulares, su adaptabilidad fisiológica y su uso en sistemas de cultivo avanzados, existe un gran potencial para producir sustancias químicas de alto valor a partir de cepas de Botryococcus braunii.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.