Abstract：
:The structural complexity of lignins necessitates characterization and isolation methodologies for assessing their appropriateness for thermo-chemical systems and material applications. Lignins prepared via two pulping methods (organosolv and soda) were comprehensively investigated by analyzing the properties, including lignin purity, yield, and thermal and chemical properties. The extracted organosolv lignin has high purity (93.13-98.12%), however, the purity of soda lignin was relatively low (87.58-89.61%). Organosolv lignin produced the highest heating value of 26.79-26.95 MJ kg-1, with a fixed carbon content of 39.47-41.06 wt%, high purity, and low ash content, making it suitable for biofuel applications. The content of total phenolic OH groups was higher for the organosolv lignins; however, for the phenolic OH groups, the 4-vinylphenol content was significantly higher in the soda lignins, and increased with increasing NaOH concentration. Overall, the thermal and chemical properties related to the lignin structure changed with the fractionation method and solvent concentration, which in turn influences the design of lignin valorization strategies for prospective depolymerization and material applications.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Kim GH,Um BHdoi
10.1016/j.ijbiomac.2020.04.229subject
Has Abstractpub_date
2020-04-29 00:00:00pages
443-451eissn
0141-8130issn
1879-0003pii
S0141-8130(20)33094-4journal_volume
158pub_type
杂志文章abstract：:The natural polymer Tragacanth Gum is less explored as a supporting matrix, there are very less studies conducted using this polymer in literature. So the present study aims to explore the consequences of different weight percent (wt.%) of gallic acid (GA) on physicochemical properties of Poly (vinyl alcohol)/Tragacan...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.04.223
更新日期：2020-04-28 00:00:00
abstract：:Effects of temperature and solvent condition on phase separation-induced molecular fractionation of gum arabic/hyaluronan (GA/HA) mixed solutions were investigated. Two gum arabic samples (EM10 and STD) with different molecular weights and polydispersity indices were used. Phase diagrams, including cloud and binodal c...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.05.073
更新日期：2018-09-01 00:00:00
abstract：:Nanotechnology-based drug delivery systems have been used to enhance bioavailability and biological activities. Chitosan incorporating curcumin can serve as a biocompatible substitute for metallic nanoparticles in preventing biofilm formation of Streptococcus mutans and plaque on teeth. The interactions between chitos...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.03.100
更新日期：2018-07-15 00:00:00
abstract：:Insect odorant-binding proteins (OBPs) play key roles in transport odors to receptors and contribute to insect survival. The cooperative interaction of HoblOBP1 and HoblOBP2 in Holotrichia oblita Faldermann (Coleoptera: Melolonthidae) could increase their binding capacity for ligands. In present study, molecular docki...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.10.182
更新日期：2020-06-01 00:00:00
abstract：:This work was focused on evaluating the effects of polycarboxylic acid addition and retrogradation phenomenon on tribological performance, thermal, and mechanical properties of both, bioadhesives and sustainable panels. The rheological behavior of adhesives was affected by retrogradation, exhibiting formulations conta...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.01.205
更新日期：2020-04-01 00:00:00
abstract：:Tamoxifen (Tmx) embedded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (PLGA-Tmx) is prepared to evaluate its better DNA cleavage potential, cytotoxicity using Dalton's lymphoma ascite (DLA) cells and MDA-MB231 breast cancer cells. PLGA-Tmx nanoparticles are prepared through emulsified nanoprecipitation technique...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2016.04.065
更新日期：2016-08-01 00:00:00
abstract：:Polyaniline-coated lignin-based adsorbent (PLC) was synthesized and used for uptake of reactive dye eosin yellow (EY) from aqueous solution. The adsorption capability of the adsorbent was found to be more effective than the unmodified adsorbent (LC). In particular, the adsorption capability of the PLC was effective ov...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2014.09.018
更新日期：2015-01-01 00:00:00
abstract：:Two guest molecules (eugenol and (-)-menthol) were investigated on inclusion complex formation with water-soluble quaternized β-CD grafted with chitosan (QCD-g-CS). The inclusion complexes were prepared at varying mole ratios between eugenol or (-)-menthol and β-CD (substituted on QCD-g-CS) by a conventional shaking m...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.11.006
更新日期：2016-03-01 00:00:00
abstract：:As one of receptors of the acquired membrane, human salivary α‑amylase (HSA) plays an important role in the formation of caries. In vitro conditions, sorghum procyanidins (SPC) tetramer has a better inhibitory effect on the adhesion of Streptococcus mutans to hydroxyapatite than SPC-dimer and SPC-trimer. This study in...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.06.189
更新日期：2018-10-15 00:00:00
abstract：:In the absence of an experimental bTLR8 structure, recent studies have called attention to the fact that bTLR8 can also be activated by hTLR7/hTLR8 agonist, such as antiviral imidazoquinoline derivatives of resiquimod (R848) and imiquimod (R837) as well as some guanine nucleotide analogs with a scaffold structure rela...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2016.08.022
更新日期：2016-11-01 00:00:00
abstract：:The purpose of this study was to develop a promising burns dressing. Chiosan (CS) has been widely used as biomaterials, in combination with marine peptides (MPs) extracted from seawater cultured Tilapia, the newly developed material Chitosan-Marine Peptides hydrogels (CSMP) in this study showed antibacterial activity,...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.01.217
更新日期：2018-06-01 00:00:00
abstract：:Chemical and structure properties of Ethanol lignin (EL), alkali lignin (AL), milled wood lignin (MWL) and cellulase enzymatic lignin (CEL) extracted from acorn shell of Quercus variabilis Bl. was studied by GPC, TG, SEM, FT-IR, 13C NMR, DEPT-135 NMR, 2D-HSQC and functional groups measurement. Results indicated that A...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.09.099
更新日期：2018-02-01 00:00:00
abstract：:Natural polymer hydrogels are expected to be promising biomaterial because of its excellent biocompatibility and biodegradability, but they are soft and easily broken. Herein, the poly (γ-glutamic acid) (γ-PGA)/bacterial cellulose (BC) composite hydrogels with excellent mechanical properties were constructed by introd...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.12.148
更新日期：2021-02-15 00:00:00
abstract：:Abiotic stresses enhance cellular reactive oxygen species (ROS) level which results in toxic methylglyoxal (MG) production. Glyoxalases catalyze the conversion of toxic MG into non-toxic lactic acid whose properties and function are still unknown in cyanobacteria. This is the first attempt to characterize All0580 from...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.11.172
更新日期：2019-03-01 00:00:00
abstract：:Osteoporosis is the most widespread metabolic bone disease characterized by decreased bone mass and bone quality, and its diagnosis and treatment remains challenging. To date, medicinal plants have received increasing attention from researchers for researching effective and less toxic therapeutic ingredients, includin...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.11.145
更新日期：2020-08-01 00:00:00
abstract：:Chitosan nanoparticles have many applications, such as gene and drug delivery, due to their biocompatibility. Chitosan nanoparticles are currently produced by dissolution in acetic acid that affects the biocompatibility at acidic pH. Here, we synthesized and characterized chitosan (CS) and ascorbate chitosan (AsCS) na...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.04.055
更新日期：2018-08-01 00:00:00
abstract：:This research investigates the potential development of lobster shell waste-derived chitin reinforced with poly(lactic acid) (PLA) and nano-hydroxyapatite (nHAP) into new materials with potentially superior mechanical and thermal properties for biomedical applications. The ionic liquid 1-ethyl-3-methylimidazolium acet...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.10.168
更新日期：2020-05-15 00:00:00
abstract：:Frontal affinity chromatography (FAC) combined with enzyme has been widely used for drug screening. In this paper, the effect of target enzyme activity on screening of bioactive compounds was studied through applying FAC. Trypsin with different degree of inactivation were prepared as target enzyme by thermal denaturat...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2019.07.218
更新日期：2019-10-15 00:00:00
abstract：:The objective of the present study was to investigate the effect of different combinations of carrier agents (Maltodextrin, gum arabic and whey protein concentrate) on the emulsion properties, encapsulation efficiency and oxidative stability of encapsulated drumstick oil powder (EDOP), produced by spray drying to incr...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.07.160
更新日期：2017-12-01 00:00:00
abstract：:To gain a deeper understanding of the molecular basis of pollen foraging preference, we characterized the proteomes of antennae and brains of bees foraging on pear and rapeseed flowers, and the volatile compounds from nectar, anther, and inflorescence of both plants. Bees foraging on the pollen of the two plants have ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.10.140
更新日期：2019-01-01 00:00:00
abstract：:Halymenia durvillei is a red seaweed with a great potential as sulphated galactan producer collected in the coastal waters of small island of Madagascar (Nosy-be in Indian Ocean). To elucidate the structure of its polysaccharide, NMR (1H and 13C), FTIR, HPAEC and different colorimetric methods were carried out. It has...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2009.04.015
更新日期：2009-08-01 00:00:00
abstract：:A new superabsorbent polymer was synthesized using amino ethyl chitosan and an acrylic acid by a free radical polymerization. The chemical structure of the superabsorbent polymer was characterized using FTIR, TGA, XRD and solid-state 13C NMR. The results revealed that the acrylic acid was successfully grafted onto the...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.04.072
更新日期：2018-08-01 00:00:00
abstract：:We report the synthesis of a series of ionic liquids (ILs) from various ions having different kosmotropicity including dihydrogen phosphate (H(2)PO(4)(-)), hydrogen sulfate (HSO(4)(-)) and acetate (CH(3)COO(-)) as anions and chaotropic cation such as trialkylammonium cation. To characterize the biomolecular interactio...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2012.04.017
更新日期：2012-07-01 00:00:00
abstract：:New derivatives of gellan gum (GG) were prepared by covalent attachment of octadecylamine (C18-NH2) to polysaccharide backbone via amide linkage by using bis(4-nitrophenyl) carbonate (4-NPBC) as a coupling agent. The effect of the alkyl chain grafted onto hydrophilic backbone of high molecular weight GG was investigat...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2017.02.029
更新日期：2017-05-01 00:00:00
abstract：:It is well accepted that porphyrins related to heme, are effectively able to act as pharmaceutical. For instance, they were found to interfere with the aggregation of beta-amyloid peptide. In present study, the influence of heme concentration on the amyloid-type aggregation of ovalbumin was investigated. We provided e...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2008.10.011
更新日期：2009-01-01 00:00:00
abstract：:The present study is to explore the optimal extraction parameters and liver protective effect of the polygonatum polysaccharides in vivo. The order of factor effects on polysaccharides production was found to be extraction time (min, A)>ratio of solvent to solid (C)>extraction temperature (°C, B)>extraction number (D)...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2012.12.010
更新日期：2013-03-01 00:00:00
abstract：:In a recent computational study, we revealed some mechanistic aspects of TRPV1 (transient receptor potential channel 1) thermal activation and gating and proposed a set of probable functionally important residues - "hot spots" that have not been characterized experimentally yet. In this work, we analyzed TRPV1 point m...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2020.04.239
更新日期：2020-05-01 00:00:00
abstract：:Chemical modification of dietary fiber (DF), extracted from whole grain barley, was carried out to obtain cross-linked (CL) DF, carboxymethyl (CM) DF, and hydroxypropyl (HP) DF. The DF components, physicochemical properties, and subsequent influence on the in vitro digestibility of wheat starch gels were comparatively...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2013.06.024
更新日期：2013-09-01 00:00:00
abstract：:Lavender essential oil (OEL) was added to starch, furcellaran and gelatin (S/F/G) films in concentrations of 2%, 4% and 6%. The films were examined in terms of physical properties (thickness, density, water solubility, water absorption and degree of swelling) and mechanical properties (tensile strength, elongation at ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2018.04.014
更新日期：2018-07-15 00:00:00
abstract：:The potency of VEGF-based anti-angiogenic strategies in cancer therapy and the brilliant characteristics of VHHs motivated us to directly block VEGF binding to its receptor with neutralizing single domain antibodies, thereby fading away the VEGF signaling pathway. Considering with high resolution crystal structure of ...
journal_title：International journal of biological macromolecules
pub_type： 杂志文章
doi：10.1016/j.ijbiomac.2015.02.047
更新日期：2015-01-01 00:00:00
