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Inn Shi Tan et al.
Bioresource technology, 199, 336-346 (2015-08-19)
The aim of this work was to evaluate the efficacy of red macroalgae Eucheuma cottonii (EC) as feedstock for third-generation bioethanol production. Dowex (TM) Dr-G8 was explored as a potential solid catalyst to hydrolyzed carbohydrates from EC or macroalgae extract
Alberto Villa et al.
ChemSusChem, 6(4), 609-612 (2013-03-16)
Mixed noblility: We show that the modification of a gold/carbon catalyst with platinum or palladium produces stable and recyclable catalysts for the selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA): the support and nanoparticle chemistry directly mediate the selective
Michel Schroyen et al.
Bioresource technology, 192, 696-702 (2015-06-22)
Pretreatment of lignocellulosic biomass is necessary to enhance the hydrolysis, which is the rate-limiting step in biogas production. Laccase and versatile peroxidase are enzymes known to degrade lignin. Therefore, the impact of enzymatic pretreatment was studied on a variety of
Marc Spiteri et al.
Food chemistry, 189, 60-66 (2015-07-21)
An innovative analytical approach was developed to tackle the most common adulterations and quality deviations in honey. Using proton-NMR profiling coupled to suitable quantification procedures and statistical models, analytical criteria were defined to check the authenticity of both mono- and
Lilong Zhou et al.
Bioresource technology, 129, 450-455 (2012-12-26)
A new kind of bifunctional ionic liquid catalysts was synthesized to degrade microcrystalline cellulose in [BMIM]Cl at atmospheric pressure. The effects of reaction temperature, amount of catalysts, reaction time, ionic liquid purity and cellulose concentration on conversion were investigated. At
K S Arias et al.
ChemSusChem, 6(1), 123-131 (2013-01-11)
The selective acetalization of 5-hydroxymethylfurfural (HMF) with long-chain alkyl alcohols has been performed to obtain precursors of molecules with surfactant properties. If direct acetalization of HMF with n-octanol is performed in the presence of strong acids (homogeneous and heterogeneous catalysts)
Tong-Chao Su et al.
Scientific reports, 5, 17538-17538 (2015-12-10)
In this study, magnetic carbonaceous acids were synthesized by pyrolysis of the homogeneous mixtures of glucose and magnetic Fe3O4 nanoparticles, and subsequent sulfonation. The synthesis conditions were optimized to obtain a catalyst with both high acid density (0.75 mmol g(-1))
Kayu Okutsu et al.
Food chemistry, 187, 364-369 (2015-05-16)
We previously developed antioxidative heat-processed (HP)-koji via two-step heating (55 °C/2days → 75 °C/3 days) of white-koji. In this study, we isolated antioxidants in HP-koji and investigated their formation mechanisms. The antioxidants were identified to be 5-hydroxymethyl furfural (HMF) and
Roberto A Agudelo et al.
New biotechnology, 33(1), 153-163 (2015-10-20)
Triticale, a non-food based, low-cost and well-adapted crop in marginal lands has been considered as a potential 1G and 2G feedstock for bio-ethanol production. In this work, triticale straw was evaluated as a source of fermentable sugars by combination of
Amal Agila et al.
Journal of food science, 78(2), C184-C191 (2013-01-22)
High fructose corn syrup (HFCS) was added at 5% to 40% to Indiana wildflower honey and added at 40% to Ohio and Indiana honeys from blueberry, star thistle, clover and wildflower, and an unknown source to simulate honey adulteration. Unadulterated
Zara Merali et al.
Biotechnology for biofuels, 8, 23-23 (2015-02-27)
Pretreatments are a prerequisite for enzymatic hydrolysis of biomass and production of ethanol. They are considered to open up the plant cell wall structure by altering, moving or solubilizing lignin and hydrolyzing a proportion of hemicellulosic moieties. However, there is
Xylose production from corn stover biomass by steam explosion combined with enzymatic digestibility.
Zhi-Hua Liu et al.
Bioresource technology, 193, 345-356 (2015-07-06)
A novel conversion process using steam explosion combined with enzymatic digestibility was exploited to increase sugar yield. Results showed that glucan and xylan recovery decreased with the increase of holding temperature and residence time in SE, respectively, while glucan and
Catalytic dehydration of fructose to 5-hydroxymethylfurfural over Nb2O5 catalyst in organic solvent.
Fenfen Wang et al.
Carbohydrate research, 368, 78-83 (2013-01-26)
The catalytic dehydration of fructose to 5-hydroxymethylfurfural (HMF) in DMSO was performed over Nb2O5 derived from calcination of niobic acid at various temperatures (300-700 °C). The catalysts were characterized by powder X-ray diffraction, N2 physical adsorption, temperature-programed desorption of NH3
Sang Eun Sim et al.
Molecules (Basel, Switzerland), 17(11), 12804-12811 (2012-11-02)
Homogenous bis-sulfonic acid ionic liquids (1 mol equiv.) in DMSO (10 mol equiv.) at 100 °C efficiently mediated the conversion of D-fructose into 5-hydroxymethyl-2-furfural in 75% isolated yield, which was roughly a 10% increment compared to the case of the
Inmaculada Romero et al.
Bioprocess and biosystems engineering, 38(8), 1469-1478 (2015-03-31)
The growing interest on rape oil as raw material for biodiesel production has resulted in an increasing availability of rape straw, an agricultural residue that is an attractive renewable source for the production of second-generation bioethanol. Pretreatment is one of
I S M Rafiqul et al.
Applied biochemistry and biotechnology, 176(4), 1071-1083 (2015-04-24)
Xylose-rich sawdust hydrolysate can be an economic substrate for the enzymatic production of xylitol, a specialty product. It is important to identify the process factors influencing xylitol production. This research aimed to screen the parameters significantly affecting bioxylitol synthesis from
Rajib Biswas et al.
Bioresource technology, 192, 46-53 (2015-05-27)
The logging and lumbering industry in the Pacific Northwest region generates huge amount of forest residues, offering an inexpensive raw material for biorefineries. Wet explosion (WEx) pretreatment was applied to the recalcitrant biomass to optimize process conditions including temperature (170-190
Yue Shen et al.
Bioresource technology, 192, 812-816 (2015-06-10)
A simple and effective route for the production of levulinic acid (LA) from cellulose has been developed in SO3H-functionalized ionic liquids. The effects of ionic liquid structures, reaction conditions and combination of metal chlorides with ILs on the yield of
Mariusz Kuglarz et al.
Bioresource technology, 200, 639-647 (2015-11-10)
The aim of this study was to develop integrated biofuel (cellulosic bioethanol) and biochemical (succinic acid) production from industrial hemp (Cannabis sativa L.) in a biorefinery concept. Two types of pretreatments were studied (dilute-acid and alkaline oxidative method). High cellulose
Juan Zhou et al.
Journal of food science, 78(3), C387-C394 (2013-03-06)
We investigated and compared the physicochemical properties (moisture, color, ash, pH, electrical conductivity, free acidity, lactonic acidity, total acidity, fructose, glucose, sucrose, diastase activity, and HMF) and mineral contents (Al, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na
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
Jun Ishii et al.
Applied microbiology and biotechnology, 97(6), 2597-2607 (2012-09-25)
Several alcohol dehydrogenase (ADH)-related genes have been identified as enzymes for reducing levels of toxic compounds, such as, furfural and/or 5-hydroxymethylfurfural (5-HMF), in hydrolysates of pretreated lignocelluloses. To date, overexpression of these ADH genes in yeast cells have aided ethanol
Luiza Helena da Silva Martins et al.
Bioresource technology, 191, 312-321 (2015-05-26)
This work evaluated ethanol production from sugarcane bagasse at high solids loadings in the pretreatment (20-40% w/v) and hydrolysis (10-20% w/v) stages. The best conditions for diluted sulfuric acid, AHP and Ox-B pretreatments were determined and mass balances including pretreatment
Mood Mohan et al.
Bioresource technology, 191, 244-252 (2015-05-23)
The aim of present study was to obtain total reducing sugars (TRS) from bamboo under subcritical water (SCW) treatment in a batch reactor at the temperature ranging from 170 °C to 220 °C and 40 min hydrolysis time. Experiments were
Janna Cropotova et al.
Food chemistry, 194, 175-183 (2015-10-17)
The aim of the present study was to estimate the quality deterioration of apple fillings during storage. Moreover, a potentiality of novel time-saving and non-invasive method based on fluorescence microscopy for prompt ascertainment of non-enzymatic browning initiation in fruit fillings
Reetta Karinen et al.
ChemSusChem, 4(8), 1002-1016 (2011-07-06)
Furfurals are important intermediates in the chemical industry. They are typically produced by homogeneous catalysis in aqueous solutions. However, heterogeneously catalyzed processes would be beneficial in view of the principles of green chemistry: the elimination of homogeneous mineral acids makes
Hao Cai et al.
Pharmaceutical biology, 51(3), 273-278 (2012-11-09)
Fructus Corni, a traditional Chinese medicines, is derived from the dry ripe sarcocarp of Cornus officinalis Sieb. et Zucc (Cornaceae). Gallic acid, 5-hydroxymethylfurfural, morroniside, sweroside, loganin, cornin, 7-O-methyl-morroniside and cornuside are the active constituents of Fructus Corni used in many
Aya Iwaki et al.
Applied and environmental microbiology, 79(5), 1661-1667 (2013-01-01)
Various forms of stress can cause an attenuation of bulk translation activity and the accumulation of nontranslating mRNAs into cytoplasmic messenger RNP (mRNP) granules termed processing bodies (P-bodies) and stress granules (SGs) in eukaryotic cells. Furfural and 5-hydroxymethylfurfural (HMF), derived
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
Lulu Yan et al.
Bioresource technology, 173, 462-466 (2014-12-03)
A carbonaceous solid acid was prepared by hydrothermal carbonization of corn stalk followed by sulfonation and was characterized by FT-IR, XRD, SEM and elemental analysis techniques. The as-prepared corn stalk-derived carbonaceous solid acid catalyst contained SO3H, COOH, and phenolic OH
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