نتایج جستجو برای: bio compounds chemicals

تعداد نتایج: 314312  

Journal: :Journal of chromatography. A 2013
Nathalia S Tessarolo Luciana R M dos Santos Raphael S F Silva Débora A Azevedo

The liquid product obtained via the biomass flash pyrolysis is commonly called bio-oil or pyrolysis oil. Bio-oils can be used as sources for chemicals or as fuels, primarily in mixtures or emulsions with fossil fuels. A detailed chemical characterization of bio-oil is necessary to determine its potential uses. Such characterization demands a powerful analytical technique such as comprehensive t...

2017
Nicolas Brun Peter Hesemann Davide Esposito

Biorefinery aims at the conversion of biomass and renewable feedstocks into fuels and platform chemicals, in analogy to conventional oil refinery. In the past years, the scientific community has defined a number of primary building blocks that can be obtained by direct biomass decomposition. However, the large potential of this "renewable chemical space" to contribute to the generation of value...

2010
Omar Deeb Padmakar V. Khadikar Mohammad Goodarzi

The terms bioaccumulation and bioconcentration refer to the uptake and build-up of chemicals that can occur in living organisms. Experimental measurement of bioconcentration is time-consuming and expensive, and is not feasible for a large number of chemicals of potential regulatory concern. A highly effective tool depending on a quantitative structure-property relationship (QSPR) can be utilize...

2015
Tao Zeng Lei Liu Ting Li Yuru Li Juan Gao Yuliang Zhao Hai-Chen Wu

Materials and Methods Materials and characterisation. 1,2-Diphytanoyl-sn-glycero-3-phosphocholine (DPhPc) was purchased from Avanti Polar Lipids (Beijing distributor). DNA6 and DNA8 were purchased from Takara Bio Inc. (Dalian) and all the other DNA oligomers were purchased from Sangon Biotech (Shanghai). Micro Bio-Spin P6 gel columns (Tris buffer) were purchased from Bio-Rad (Hercules, CA). All...

2015
Fatma B. Hamad Egid B. Mubofu

Cashew nut shells (CNS), which are agro wastes from cashew nut processing factories, have proven to be among the most versatile bio-based renewable materials in the search for functional materials and chemicals from renewable resources. CNS are produced in the cashew nut processing process as waste, but they contain cashew nut shell liquid (CNSL) up to about 30-35 wt. % of the nut shell weight ...

2016
Xiao H. Wang Yang Yu Tao Huang Wei C. Qin Li M. Su Yuan H. Zhao James P. Meador

Investigations on the relationship of toxicities between species play an important role in the understanding of toxic mechanisms to environmental organisms. In this paper, the toxicity data of 949 chemicals to fish and 1470 chemicals to V. fischeri were used to investigate the modes of action (MOAs) between species. The results show that although there is a positive interspecies correlation, th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...

Journal: :Bioresource technology 2010
Satyanarayan Naik Vaibhav V Goud Prasant K Rout Ajay K Dalai

The biomass i.e. wheat-hemlock used in this study was first characterized for its composition. The physical and chemical characterization of biomass was estimated using proximate analysis, calorific value, crystallinity, devolatilization behaviour, ultimate analysis, ICP-MS of ash, FT-IR, XRD, CHNS, and HPLC analysis. For commercial purpose the same biomass was used for conversion to bio-oil by...

Journal: :Energies 2022

Solar pyrolysis is a promising technology as it combines use of biomass and solar energy to generate transportable storable fuels, well chemicals interest. The most desired product rapid microalgae bio-oil, liquid viscous mixture composed hundreds chemicals. Among these compounds are many oxygenates that usually bring some undesirable properties e.g., instability. This study aimed investigate t...

2012
Brent Erickson Janet E Nelson Paul Winters

From biomass to renewable chemicals: while industrial biotechnology offers a clear value proposition, a number of hurdles need to be addressed to fully realize the commercial potential of bio-based products and chemicals over the coming decade. A review of an early roadmap for biological production of chemicals from renewable sugars reveals a focus on those that would provide co-products for in...

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