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A Kinetic Study on Supercritical Carbon-dioxide Extraction of Indonesian Trigona sp. Propolis
(IOP Conf. Series: Materials Science and Engineering 742 (2020) 012001, 2020-03-09)
This work is to investigate the supercritical CO2 extraction of Indonesian Trigona
sp. raw propolis. The kinetic study was conducted at CO2 mass flowrate of 15 g/min, the
temperature of 50 °C and pressure (250-350 bar). ...
Pretreatment of Tobacco Stems as Bioethanol Raw Material: The Effect of Temperature and Time Using Chemical Method
(AIP Conference Proceedings, 2020-10-26)
One type of alternative energy currently developed in Indonesia is bioethanol. The use of bioethanol as a fuel has several advantages compared to oil fuels such as cleaner burning and environmentally friendly because carbon ...
Hydrolysis Optimization of Tobacco Stems with Ultrasonicassisted Hydrolysis Method
(IOP Conference Series: Materials Science and Engineering, 2021-02-25)
The development of biofuel in Indonesia is rife to reduce the consumption of fuel
oil. Bioethanol has advantages compared to fuel oil, such as lower carbon monoxide emissions
making it environmentally friendly. Besides ...
Fabrication of Magnetic Activated Carbon from Spent Coffee Ground by Hydrothermal Synthesis for Methylene Blue Removal
(International Conference on Chemical and Material Engineering, 2021-02-01)
Spent coffee ground-based magnetic activated carbon (MSC) was prepared using hydrothermal synthesis and utilized for the adsorption of methylene blue (MB). The MSC was made using the following conditions: the molar ratio ...
Extraction Bioactive Compound of Pegagan (Centella Asiatica L.) using Solvent-Free Microwave-Assisted Extraction
(International Conference on Chemical and Material Engineering (ICCME 2020), 2021-02-25)
Gotu Kola (Centella asiatica L.), known as pegagan is a plant with many benefits,
including used to repair burns, hypertrophic wound healing, and as an inflammatory agent. C.
asiatica grows in tropical Asia and grows in ...
Laminar burning velocity of Calophylluminophyllum methyl ester on perforated burner
(AIP Conference Proceedings 2278, 2020-10-02)
Laminar burning velocity is the volume of unburned gas per unit time distributed by the gas consumed. The
laminar burning velocity has an important role because it contains basic information about fuel reactivity, ...
The Microwave-Assisted Extraction of Inulin from Dahlia Sp. Tubers in Water
(AIP Conference Proceedings 2278, 2020-10-26)
The Inulin is well-known as a valuable chemical since its structure contains fructose and glucose. Through
extraction, inulin can be derived from Dahlia Sp. Tubers. Mostly, the acid and high temperature are used ...
Slow Release Fertilizer Production from Coffee Spent Ground: A Preliminary Study
(AIP Conference Proceedings 2278, 020022 (2020), 2020-10-26)
Jember is an area in East Java that has potential in the agricultural and plantation sectors. Coffee as one of the
commodities of Jember Regency is very well known throughout the world proven by the existence of the coffee ...
Heating Treatment of Air in Combustion Chamber For The Use of Mixture Ethanol and Gasoline Fuel
(International Conference on Advanced Science and Technology, 2021-02-22)
This research was conducted to improve the engine performance with ethanol and
gasoline mixture, because from fuel mixture with high concentrate causes value of flash point
and heat evaporation fuels becomes higher. To ...
Heating Ethanol-Gasoline Fuel Mixture to Improve Performance and Reduce Exhaust Emissions at Gasoline Engine - A Review
(AIP Conference Proceedings, 2020-09-26)
Today's dependence on fossil fuels causes shrinkage of fossil fuel in the earth, especially in industrial sector and transportation that is highly depended on petroleum. Industry and transportation agents have changed the ...