Ethylbenzene removal under mesophilic conditions in a biofilter withMacadamia ternifolianutshells as a carrier material

2012 ◽  
Vol 88 (1) ◽  
pp. 81-87 ◽  
Author(s):  
Diëgo Volckaert ◽  
F. Javier Álvarez-Hornos ◽  
Philippe M. Heynderickx ◽  
Chidnapa Kittikoon ◽  
Herman Van Langenhove
Keyword(s):  
Carrier Material ◽  
Mesophilic Conditions

scholarly journals Selecting carrier material for efficient biomethanation of industrial biogas-CO2 in a trickle-bed reactor

2021 ◽  
Vol 51 ◽  
pp. 101611
Author(s):  
Mads Borgbjerg Jensen ◽  
Súsanna Poulsen ◽  
Bjarke Jensen ◽  
Anders Feilberg ◽  
Michael Vedel Wegener Kofoed
Keyword(s):  
Trickle Bed Reactor ◽  
Carrier Material ◽  
Trickle Bed

scholarly journals Batch and Semi-Continuous Anaerobic Digestion of Industrial Solid Citrus Waste for the Production of Bioenergy

Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 648
Author(s):  
Erik Samuel Rosas-Mendoza ◽  
Andrea Alvarado-Vallejo ◽  
Norma Alejandra Vallejo-Cantú ◽  
Raúl Snell-Castro ◽  
Sergio Martínez-Hernández ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Oxygen Demand ◽  
Continuous Mode ◽  
Citrus Industry ◽  
Batch Mode ◽  
Volatile Solids ◽  
Working Volume ◽  
Plant Level ◽  
Citrus Waste ◽  
Mesophilic Conditions

The aim of this paper is to describe a study of the anaerobic digestion of industrial citrus solid waste (ISCW) in both batch and semi-continuous modes for the production of bioenergy without the elimination of D-limonene. The study was conducted at the pilot plant level in an anaerobic reactor with a working volume of 220 L under mesophilic conditions of 35 ± 2 °C. Cattle manure (CM) was used as the inoculum. Three batches were studied. The first batch had a CM/ISCW ratio of 90/10, and Batches 2 and 3 had CM/ISCW ratios of 80/20 and 70/30, respectively. In the semi-continuous mode an OLR of approximately 8 g total chemical oxygen demand (COD)/Ld (4.43 gVS/Ld) was used. The results showed that 49%, 44%, and 60% of volatile solids were removed in the batch mode, and 35% was removed in the semi-continuous mode. In the batch mode, 0.322, 0.382, and 0.316 LCH4 were obtained at STP/gVSremoved. A total of 24.4 L/d (34% methane) was measured in the semi-continuous mode. Bioenergy potentials of 3.97, 5.66, and 8.79 kWh were obtained for the respective batches, and 0.09 kWh was calculated in the semi-continuous mode. The citrus industry could produce 37 GWh per season. A ton of processed oranges has a bioenergy potential of 162 kWh, which is equivalent to 49 kWh of available electricity ($3.90).

scholarly journals Molecular Elucidation of a Urate Oxidase from Deinococcus radiodurans for Hyperuricemia and Gout Therapy

2021 ◽  
Vol 22 (11) ◽  
pp. 5611
Author(s):  
Yi-Chih Chiu ◽  
Ting-Syuan Hsu ◽  
Chen-Yu Huang ◽  
Chun-Hua Hsu
Keyword(s):  
Uric Acid ◽  
High Stability ◽  
Deinococcus Radiodurans ◽  
Catalytic Efficiency ◽  
Enzyme Characterization ◽  
Urate Oxidase ◽  
Medical Applications ◽  
Physiological Conditions ◽  
Extremophile Microorganism ◽  
Mesophilic Conditions

Urate oxidase initiates the uric acid degradation pathways and is extensively used for protein drug development for gout therapy and serum uric acid diagnosis. We first present the biochemical and structural elucidation of a urate oxidase from the extremophile microorganism Deinococcus radiodurans (DrUox). From enzyme characterization, DrUox showed optimal catalytic ability at 30 °C and pH 9.0 with high stability under physiological conditions. Only the Mg2+ ion moderately elevated its activity, which indicates the characteristic of the cofactor-free urate oxidase family. Of note, DrUox is thermostable in mesophilic conditions. It retains almost 100% activity when incubated at 25 °C and 37 °C for 24 h. In this study, we characterized a thermostable urate oxidase, DrUox with high catalytic efficiency and thermal stability, which strengthens its potential for medical applications.

scholarly journals Preparation of chitosan microspheres as carrier material to controlled release of urea fertilizer

2021 ◽  
Vol 38 ◽  
pp. 70-77
Author(s):  
Jayanudin ◽  
Retno S.D. Lestari ◽  
Indar Kustiningsih ◽  
Dandi Irawanto ◽  
Rozak Bahaudin ◽  
...  
Keyword(s):  
Controlled Release ◽  
Urea Fertilizer ◽  
Chitosan Microspheres ◽  
Carrier Material

Rational design of Shewanella sp. L-arabinose isomerase for D-galactose isomerase activity under mesophilic conditions

2021 ◽  
pp. 109796
Author(s):  
Arun-Baskaran Jayaraman ◽  
Thirukumaran Kandasamy ◽  
Dilip Venkataraman ◽  
S. Meenakshisundaram
Keyword(s):  
Rational Design ◽  
Isomerase Activity ◽  
Arabinose Isomerase ◽  
Mesophilic Conditions
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