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Vinit Choudhary et al.
Journal of the American Chemical Society, 135(10), 3997-4006 (2013-02-26)
5-(Hydroxymethyl)furfural (HMF) and levulinic acid production from glucose in a cascade of reactions using a Lewis acid (CrCl3) catalyst together with a Brønsted acid (HCl) catalyst in aqueous media is investigated. It is shown that CrCl3 is an active Lewis
Rui Xie et al.
Bioresource technology, 186, 106-113 (2015-03-31)
Carbonyl compounds generated in biomass pretreatment hinder the biochemical conversion of biomass hydrolysates to biofuels. A novel approach of detoxifying hydrolysates with amino acids for ethanol production was developed. Among the 20 amino acids assessed for their detoxification efficiency and
Nazlina Ya'aini et al.
Bioresource technology, 116, 58-65 (2012-05-23)
Conversion of glucose, empty fruit bunch (efb) and kenaf to levulinic acid over a new hybrid catalyst has been investigated in this study. The characterization and catalytic performance results revealed that the physico-chemical properties of the new hybrid catalyst comprised
Direct hydrocyclization of biomass-derived levulinic acid to 2-methyltetrahydrofuran over nanocomposite copper/silica catalysts.
Pravin P Upare et al.
ChemSusChem, 4(12), 1749-1752 (2011-11-25)
Bing-Yan Wang et al.
Journal of the International Academy of Periodontology, 14(3), 56-61 (2012-08-23)
To determine if a novel formulation is effective in killing oral biofilm streptococci in vitro and in vivo. Efficacy of 0.5% levulinic acid and 0.05% sodium dodecyl sulfate (SDS) in killing Streptococcus gordonii CH1, Streptococcus gordonii DL1, Streptococcus mitis NCTC10712
Wenyang Pan et al.
Journal of industrial microbiology & biotechnology, 39(3), 459-469 (2011-09-29)
Sugar maple hemicellulosic hydrolysate containing 71.9 g/l of xylose was used as an inexpensive feedstock to produce polyhydroxyalkanoates (PHAs) by Burkholderia cepacia ATCC 17759. Several inhibitory compounds present in wood hydrolysate were analyzed for effects on cell growth and PHA production
Jitian Liu et al.
Carbohydrate research, 350, 20-24 (2012-01-24)
The conversion of D-fructose to 5-hydroxymethylfurfural (HMF) on a 1 mmol scale was achieved in good yield (68%) using NH(4)Cl as catalyst in isopropanol at 120°C. About 3% of 5-i-propoxymethylfurfural was formed. The reaction in ethanol at 100°C on a
Kan Liu et al.
Bioresource technology, 176, 88-97 (2014-12-03)
Eastern redcedar is an invasive softwood species in Oklahoma and across grasslands in the Central Plains of the United States and potential feedstock for butanol production. Butanol has higher energy content than ethanol and can be upgraded to jet and
Yuchao Shao et al.
Environmental research, 184, 109340-109340 (2020-03-27)
5-Hydroxymethylfurfural (HMF) as value-added platform chemical can be derived from biomass. This study used microwave hydrothermal liquefaction (MHTL) to obtain HMF from sugarcane bagasse in acidic seawater conditions. The key processing parameters including temperature, reaction time, and liquid-to-solid ratio (L/S)
Hanumantharao Paritala et al.
Analytical biochemistry, 440(1), 32-39 (2013-05-29)
Mycobacterium tuberculosis (Mtb) adenosine 5'-phosphosulfate (APS) reductase (APR) catalyzes the first committed step in sulfate reduction for the biosynthesis of essential reduced sulfur-containing biomolecules, such as cysteine, and is essential for survival in the latent phase of tuberculosis (TB) infection.
L Kostka et al.
Physiological research, 64 Suppl 1, S29-S40 (2015-10-09)
Efficient intravenous delivery is the greatest single hurdle, with most nanotherapeutics frequently found to be unstable in the harsh conditions of the bloodstream. In the case of nanotherapeutics for gene delivery, viral vectors are often avidly recognized by both the
Jérémie Damay et al.
Bioresource technology, 263, 103-111 (2018-05-08)
Sweet sorghum was subjected to an impregnation step, which recovered most of the 1st generation sugars, prior to a steam-treatment extraction of the 2nd generation sugars, at three different severity factors (SF). A medium severity (3.56 SF) treatment proved to be
William R H Wright et al.
ChemSusChem, 5(9), 1657-1667 (2012-08-15)
γ-Valerolactone (GVL) has been identified as a potential intermediate for the production of fuels and chemicals based on renewable feedstocks. Numerous heterogeneous catalysts have been used for GVL production, alongside a range of reaction setups. This Minireview seeks to outline
Larry R Beuchat et al.
Journal of food protection, 75(11), 1930-1938 (2012-11-07)
Chlorine, organic acids, and water extracts of inedible pecan components were tested for effectiveness in killing Salmonella on pecans. In-shell pecans and nutmeats (U.S. Department of Agriculture medium pieces) were immersion inoculated with a mixture of five Salmonella serotypes, dried
Maria Dyah Nur Meinita et al.
Bioprocess and biosystems engineering, 35(1-2), 93-98 (2011-09-13)
Red seaweed, Kappaphycus alvarezii, holds great promise for use in biofuel production due to its high carbohydrate content. In this study, we investigated the effect of fermentation inhibitors to the K. alvarezii hydrolysate on cell growth and ethanol fermentation. In
Adnan Cavka et al.
Biotechnology for biofuels, 8, 196-196 (2015-12-01)
Pretreatment of lignocellulose for biochemical conversion commonly results in formation of by-products that inhibit microorganisms and cellulolytic enzymes. To make bioconversion processes more efficient, inhibition problems can be alleviated through conditioning. Ozone is currently commercially employed in pulp and paper
Riny Y Parapat et al.
Nanoscale, 5(2), 796-805 (2012-12-14)
We recently introduced a new method to synthesize an active and stable Pt catalyst, namely thermo-destabilization of microemulsions (see R. Y. Parapat, V. Parwoto, M. Schwarze, B. Zhang, D. S. Su and R. Schomäcker, J. Mater. Chem., 2012, 22 (23)
Chuhan Liu et al.
Journal of food science, 80(7), M1532-M1537 (2015-05-23)
Ultraviolet light (UV) has antimicrobial effects, but the shadowing effect has limited its application. In this study, a novel setup using UV processing in agitated water was developed to inactivate Escherichia coli O157:H7 and Salmonella on blueberries. Blueberries were dip-
Ruthenium-catalyzed conversion of levulinic acid to pyrrolidines by reductive amination.
Yao-Bing Huang et al.
ChemSusChem, 4(11), 1578-1581 (2011-09-17)
Zhonglai Li et al.
ACS applied materials & interfaces, 4(9), 4499-4505 (2012-08-16)
TiO(2) nanorods and ZrO(2)-modified TiO(2) nanocomposites have been prepared by hydrothermal synthesis and the deposition-precipitation method. Their sulfated products were tested as solid superacid catalysts for the esterification of levulinic acid which was used as a model bio-oil molecule. SEM
Sarah Tschirner et al.
Molecules (Basel, Switzerland), 23(8) (2018-07-28)
A mixture of hexafluoroisopropanol (HFIP) and water was used as a new and unknown monophasic reaction solvent for fructose dehydration in order to produce HMF. HFIP is a low-boiling fluorous alcohol (b.p. 58 °C). Hence, HFIP can be recovered cost
Pierre Gallezot
Chemical Society reviews, 41(4), 1538-1558 (2011-09-13)
This critical review provides a survey illustrated by recent references of different strategies to achieve a sustainable conversion of biomass to bioproducts. Because of the huge number of chemical products that can be potentially manufactured, a selection of starting materials
Tong Zhao et al.
Journal of food protection, 74(12), 2024-2030 (2011-12-22)
Surface contamination (skin and feathers) of broilers with Salmonella occurs primarily during growth and transportation. Immediately after transporting chickens, chicken cage doors were sprayed with a foam containing 3% levulinic acid plus 2% sodium dodecyl sulfate (SDS). Samples were collected
F Monlau et al.
Bioresource technology, 187, 379-386 (2015-04-13)
The robust supramolecular structure of biomass often requires severe pretreatments conditions to produce soluble sugars. Nonetheless, these processes generate some inhibitory compounds (i.e. furans compounds and aliphatic acids) deriving mainly from sugars degradation. To avoid the inhibition of the biological
Conversion of hemicellulose to furfural and levulinic acid using biphasic reactors with alkylphenol solvents.
Elif I Gürbüz et al.
ChemSusChem, 5(2), 383-387 (2012-01-26)
Buana Girisuta et al.
Bioresource technology, 126, 92-100 (2012-10-18)
This study evaluates an integrated process for the production of platform chemicals and diesel miscible biofuels. An energy crop (Miscanthus) was treated hydrothermally to produce levulinic acid (LA). Temperatures ranging between 150 and 200 °C, sulfuric acid concentrations 1-5 wt.%
Kazuhiko Kurosawa et al.
Bioresource technology, 193, 206-212 (2015-07-05)
Extracting lipids from oleaginous microbial cells in a cost effective and environmentally compatible manner remains a critical challenge in developing manufacturing paradigms for advanced liquid biofuels. In this study, a new approach using microbial growth inhibitors from lignocellulose-derived feedstocks was
Ji Ye Lee et al.
Bioresource technology, 132, 84-90 (2013-02-12)
The objective of this work was to investigate the feasibility of acid-catalyzed hydrothermal fractionation for maximum solubilization of the hemicellulosic portion of three agricultural residues. The fractionation conditions converted into combined severity factor (CS) in the range of 1.2-2.9. The
Stephanie R Harris et al.
Chemical research in toxicology, 26(2), 213-220 (2012-11-23)
We recently reported that levulinate (4-ketopentanoate) is converted in the liver to 4-hydroxypentanoate, a drug of abuse, and that the formation of 4-hydroxypentanoate is stimulated by ethanol oxidation. We also identified 3 parallel β-oxidation pathways by which levulinate and 4-hydroxypentanoate
Alexander M Stelzleni et al.
Meat science, 95(1), 1-7 (2013-05-04)
The inclusion of two sources of buffered vinegar and sodium dodecyl sulfate plus levulinic acid were studied as interventions for Salmonella Typhimurium and for their effect on shelf-life and sensory characteristics of ground beef. For the Salmonella challenge, beef trimmings
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