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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
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)
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
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
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.
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)
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
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)
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
Kazuhiko Kurosawa et al.
Biotechnology for biofuels, 8, 76-76 (2015-06-09)
Lignocellulosic biomass has been investigated as a renewable non-food source for production of biofuels. A significant technical challenge to using lignocellulose is the presence of microbial growth inhibitors generated during pretreatment processes. Triacylglycerols (TAGs) are potential precursors for lipid-based biofuel
Huifang Ren et al.
Bioresource technology, 129, 616-619 (2013-01-23)
A highly selective approach to produce levulinic acid from cellulose was developed via microwave-assisted synthesis in SO3H-functionalized ionic liquids (SFILs). The effects of reaction conditions and ionic liquid structures on the yield of levulinic acid have been investigated, where the
Iulian-Zoltan Boboescu et al.
Bioresource technology, 292, 121975-121975 (2019-08-25)
Cellulosic ethanol could play a major role in the upcoming circular-economy once the process complexity, low carbohydrate extraction yields and high costs are resolved. To this purpose, different steam-treatment severity factors were employed on whole sweet sorghum biomass, followed by
T Jin et al.
Journal of food protection, 75(8), 1368-1372 (2012-08-04)
This study was conducted to investigate the efficacy of antimicrobial coatings for inactivation of Salmonella on the surface of tomato stem scars. Scars were inoculated with a four-strain cocktail of Salmonella (serovars Montevideo, Newport, Saintpaul, and Typhimurium) and coated with
Lois Keithly et al.
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 7(5), 761-771 (2005-09-30)
Public health officials and tobacco researchers have raised concerns about the possible contributions of additives to the toxicity of cigarettes. However, little attention has been given to the process whereby additives promote initiation and addiction. Levulinic acid is a known
Ronen Weingarten et al.
ChemSusChem, 5(7), 1280-1290 (2012-06-15)
We have developed a kinetic model for aqueous-phase production of levulinic acid from glucose using a homogeneous acid catalyst. The proposed model shows a good fit with experimental data collected in this study in a batch reactor. The model was
G Endo et al.
Journal of applied toxicology : JAT, 10(4), 235-238 (1990-08-01)
The adverse effects of long-term exposure to lead dust on renal tubular functions were studied in 39 male and 7 female workers in a secondary lead refinery. Laboratory examinations showed low or moderate lead absorption levels. The N-acetyl-beta-D-glucosaminidase (NAG) activity
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