A5030382409- Biodiesel Production and Applications
- Lubricants and Their Additives
- Catalysis and Hydrodesulfurization Studies
- Thermochemical Biomass Conversion Processes
- Catalytic Processes in Materials Science
- Petroleum Processing and Analysis
- Edible Oils Quality and Analysis
- Biofuel production and bioconversion
- Ionic liquids properties and applications
- Lignin and Wood Chemistry
- Adsorption and biosorption for pollutant removal
- Food Chemistry and Fat Analysis
- Proteins in Food Systems
- Mesoporous Materials and Catalysis
- Odor and Emission Control Technologies
- Free Radicals and Antioxidants
- Corrosion Behavior and Inhibition
- Thermal and Kinetic Analysis
- Chemical and Physical Properties in Aqueous Solutions
- Catalysis for Biomass Conversion
- Nanomaterials for catalytic reactions
- Process Optimization and Integration
- Algal biology and biofuel production
- Metal Extraction and Bioleaching
- Enzyme Catalysis and Immobilization
University of Indonesia
2014-2024
Diponegoro University
2013
Institute of Catalysis and Petrochemistry
2010
Altera (United States)
2010
Tokyo Institute of Technology
1993-1998
Chitosan has been a popular option for tissue engineering, however exhibits limited function bone regeneration due to its low mechanical robustness and non-osteogenic inductivity. Here we hybridized chitosan with TiO2 nanoparticles improve capability. Morphology crystallographic analysis showed that in anatase-type were distributed evenly on the surface of sponges. Degradation test significant effect addition retaining integrity. Biomineralization assay using simulated body fluid apatite...
We present a facile method to produce silica nanoparticles as superhydrophobic material which has been successfully synthesized by mechanical milling and the sol–gel method. The powder obtained was characterized using scanning electronic microscopy, X-Ray Diffraction, particle size distribution, zeta potential. effects of alcohol solvents on synthesis, such size, potential, were examined thoroughly. To evaluate surface modification from hydrophilic hydrophobic properties, IR spectra applied....
Hydrophobic curcumin in temulawak extract and hydrophilic betacyanin red dragon fruit are high-value bioactive compounds with extensive applications functional food. In this study, these extracts were encapsulated water-in-oil-in-water (w/o/w) nanoemulsions as a delivery system using two-step high-energy emulsification method. PGPR Span 20 used lipophilic emulsifiers for the primary w/o emulsion. The most stable w/o/w formulation least oil phase separation of 5% v/v consisted emulsion (15%...
Biodiesel is a renewable plant-based fuel as an alternative for fossil diesel which has many advantages. However, its high content of unsaturated fatty acid causes oxidation instability during storage. Numerous additives have been used and developed to overcome this problem such the application phenolic compound-based antioxidants. Pyrogallol reported be one best antioxidants biodiesel. Unfortunately, pyrogallol low solubility in oil solution. In research, increased by preparing derivative...
The corrosion inhibition of rice husk extract for bio-corrosion in mild steel 1 M H2SO4 solution and the effect adding potassium iodide were investigated using weight-loss method with a variable temperature various bio-inhibitor concentrations. addition can significantly increase efficiency extract. highest is 95.89% at 1,250 ppm inhibitor concentration 313 K. synergistically increased iodide. characteristics adsorption inhibitors assessed Langmuir isotherm approach all studied...
Eugenol has many functional properties for food and pharmaceutical purposes, especially as an antimicrobial agent. However, its use is constrained by volatility shelf life because it easily degraded due to temperature, oxidation, light. Research on encapsulation technology using biopolymers still required obtain the appropriate formulation in a eugenol delivery system. The aims of this research were develop new protein polysaccharides determine effect chitosan concentration characteristics...
There is a continued need for the advancement of natural emulsifiers to replace synthetic emulsifiers, driven by human health concerns. This study aimed at producing protein-polysaccharide conjugates through Maillard reaction and evaluating its ability as an emulsifier based on emulsifying properties. The proteins used in this were bovine milk whey protein soy isolates, while polysaccharides maltodextrin pectin. conjugation under dry heating conditions. polysaccharide mass ratios 1 : 2 3....
Hydrodeoxygenation of oleic acid as model compound vegetable oils over Pd/zeolite catalysts was investigated under conditions 375−400 °C and 15 bar in a semi batch stirred autoclave reactor. Pd/zeolite-1 Pd/zeolite-2 were prepared using microwave polyol method with different treatment conditions. The liquid hydrocarbon products named Renewable Diesel have suitable density viscosity, quite high cetane index accordance standard commercial diesel ASTM D-975. IR spectrum similarities diesel....
Utilization of Bagasse Cellulose for Ethanol Production through Simultaneous Saccharification and Fermentation by Xylanase. is a solid residue from sugar cane process, which not many use it some product have more added value. Bagasse, lignosellulosic material, be able to alternative energy resources like bioethanol or biogas. With renewable crisis in Republic Indonesia could solved, especially oil gas. This research has done the conversion bagasse with xylanase enzyme. The result show that...
Bamboo based activated carbon (AC) was modified by attaching silver (AC-Ag) and copper (AC-Cu) nano-particles to reduce the low-concentration of formaldehyde in air. Batch isotherm tests were performed determine adsorption capacity each carbon. At equilibrium concentration 8 ppm, AC-Cu adsorbed 29% higher amount as compared original AC. The highest loading obtained for AC-Ag, being around 0.425 mg/g AC-Ag. removed AC-Ag 1.6 times than virgin AC at same concentration.
Superabsorbent polymers, as raw material for disposable material, will cause environmental problems. One of the organic materials that used superabsorbent is carboxymethyl cellulose (CMC). Water hyacinth, which has a relatively high content, potentially non-wood resources. Study on synthesis CMC from water hyacinth been reported with maximum degree substitution (DS) 0.72 isopropyl alcohol solvent. There are opportunities to find best solvent in order obtain higher DS. Isobutyl alcohol, lower...
In co-pyrolysis of biomass-plastics, bio-oil produced contains both oxygenated and non-oxygenated compounds. High oxygen composition is responsible for instability low heating value high acid content corrosiveness. Aims the present work are to evaluate possibilities achieving phase separation between compounds in using a proposed stirred tank reactor achieve synergistic effects on yield compound layer yield. Separation into two layers, i.e. that containing (polar phase) (non-polar important...