Study of the mechanical degradation mechanism of guar gum in turbulent flow by FTIR.

Abstract:

:Guar gum is used in low concentrations as a drag reducing agent in turbulent flows to significantly accelerate flow in oil pipelines, oil well operations and aqueous systems. Drag reduction also promotes a decrease in energy demand in pumping systems. However, the polymers undergo mechanical degradation and lose the ability to promote drag reduction over time. In this paper, the drag reduction, the power required by the pumps and the degradation of the guar gum were evaluated during a turbulent flow of an aqueous solution containing the biopolymer. The results indicate the mechanism of degradation of guar gum by the hydrolysis of the bond α (1 → 6), liberating the galactose, which justice to the loss of efficiency throughout the process. An understanding of this mechanism should allow for the development of more mechanically resistant polymers and the increase of drag reduction capacity over time.

journal_name

Int J Biol Macromol

authors

Motta MVL,de Castro EVR,Muri EJB,Costalonga ML,Loureiro BV,Filgueiras PR

doi

10.1016/j.ijbiomac.2018.09.214

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

23-28

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(18)34417-9

journal_volume

121

pub_type

杂志文章
  • Microparticles based on natural and synthetic polymers for cosmetic applications.

    abstract::Most peeling products (exfoliators) available on the market, used in cosmetic and aesthetic dermatology applications, contain synthetic microbeads as abrasive agents. After being released into the natural environment, these non-biodegradable microparticles have an adverse impact on it, especially on aquatic ecosystems...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.02.091

    authors: Kozlowska J,Prus W,Stachowiak N

    更新日期:2019-05-15 00:00:00

  • Effect of Cd2+ on muscle type of creatine kinase: Inhibition kinetics integrating computational simulations.

    abstract::Creatine kinase (EC 2.7.3.2, CK) plays an important role in cellular energy metabolism and homeostasis by catalyzing the transfer of phosphate between ATP and creatine phosphate. We investigated the effects of Cd2+ on muscle type of creatine kinase from Pelodiscus sinensis (PSCKM). Cd2+ conspicuously inactivated the a...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2015.11.077

    authors: Cai Y,Lee J,Wang W,Yang JM,Qian GY

    更新日期:2016-02-01 00:00:00

  • Enzymatic degradation of poly(hydroxyalkanoates) by Pseudomonas pickettii.

    abstract::A bacterium capable of degrading poly(3-hydroxybutyrate) [P(3HB)] was isolated from laboratory media and identified as Pseudomonas pickettii. The strain P. pickettii excreted an extracellular poly(hydroxyalkanoate) (PHA) depolymerase and grew on P(3HB) as the sole carbon source. P. pickettii also grew on 3-hydroxybuty...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/0141-8130(93)90040-s

    authors: Yamada K,Mukai K,Doi Y

    更新日期:1993-08-01 00:00:00

  • l-3,4-Dihydroxyphenylalanine templated anisotropic gold nano/micro-roses as potential disrupters/inhibitors of α-crystallin protein and its gleaned model peptide aggregates.

    abstract::Cataract, the major cause of blindness worldwide occurs due to the misfolding and aggregation of the protein crystallin, which constitute a major portion of the lens protein. Other than the whole protein crystallin, the peptide sequences generated from crystallin as a result of covalent protein damage have also been s...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.09.112

    authors: Kour A,Sharma S,Dube T,Bisht A,Sharma M,Mishra J,Ali ME,Panda JJ

    更新日期:2020-11-15 00:00:00

  • Orientation of silk III at the air-water interface.

    abstract::A threefold helical crystal structure of Bombyx mori silk fibroin has been observed in films prepared from aqueous silk fibroin solutions using the Langmuir Blodgett (LB) technique. The films were studied using a combination of transmission electron microscopy and electron diffraction techniques. Films prepared at a s...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/s0141-8130(99)00002-1

    authors: Valluzzi R,Gido SP,Muller W,Kaplan DL

    更新日期:1999-03-01 00:00:00

  • Characterization of a d-tagatose 3-epimerase from Caballeronia fortuita and its application in rare sugar production.

    abstract::Recently, rare sugars have caused extensively attention due to their beneficial physiological functions and potential applications in food systems and medical fields. Ketose 3-epimerase (KEase) can catalyze reversibly the epimerization between ketoses which is the pivotal enzyme in Izumoring strategy and an effective ...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.07.112

    authors: Li S,Chen Z,Zhang W,Guang C,Mu W

    更新日期:2019-10-01 00:00:00

  • Dacarbazine as a minor groove binder of DNA: Spectroscopic, biophysical and molecular docking studies.

    abstract::A detailed investigation on the mode of action and binding mechanism of a potent anticancer drug, 5-(3,3-dimethyl-1-triazeno)-imidazole-4-carboxamide (DCR) with calf thymus DNA (ctDNA) was carried out. UV-vis and fluorescence spectrophotometry suggested the formation of complex between DCR and ctDNA. The binding const...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2015.04.055

    authors: Ahmad I,Ahmad M

    更新日期:2015-08-01 00:00:00

  • Active edible films of methylcellulose with extracts of green apple (Granny Smith) skin.

    abstract::The aim a present study was developed methylcellulose (MC) active edible films with extracts of green apple skin, as model systems of edible coating. Active edible films were developed by incorporation of ethanolic extract of freeze-dried apple skin (EEFD) and aqueous extract of apple skin (AES) at 10, 20 and 25% (v/v...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2018.12.114

    authors: Matta E,Tavera-Quiroz MJ,Bertola N

    更新日期:2019-03-01 00:00:00

  • Shelf life extension of wheat bread by alhydwan flour and Carboxymethylcellulose and improvement of their quality characteristics, dough rheological and microstructure.

    abstract::Alhydwan, has been used in bakery products for many years in South of Yemen. Alhydwan primary function in bakery products is to inhibit moisture content during storage, leading to improved shelf life. However, as a fresh strategy to bread staling, no extensive study has been conducted to evaluate its potential. The pr...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.04.023

    authors: Ammar AF,Siddeeg A,Aqlan FM,Howladar SM,Refai MY,Afifi M,Ali HA,Hajjar D,Sulamain MGM,Chamba MVM,Kimani BG,Saleh A,Baeshen M

    更新日期:2020-08-01 00:00:00

  • Dual catalytic DNA circuit-induced gold nanoparticle aggregation: An enzyme-free and colorimetric strategy for amplified detection of nucleic acids.

    abstract::An enzyme-free dual catalytic DNA circuit for amplified detection of nucleic acids has been developed. The system functions based on a cyclic self-assembly of two auxiliary hairpins (H1 and H2) and three biotinylated hairpin oligonucleotides (H3, H4 and H5), in the format of two molecular circuits. In the upstream cir...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.03.059

    authors: Ravan H,Amandadi M,Hassanshahian M,Pourseyedi S

    更新日期:2020-07-01 00:00:00

  • Investigation on the interaction of acid phosphatase with putrescine using docking, simulations methods and multispectroscopic techniques.

    abstract::The effect of putrescine on the dynamics, conformation, and kinetics of acid phosphatase investigated via different experimental and theoretical methods. The Stern-Volmer constants (Ksv) for the acid phosphatase- putrescine compound was obtained at different temperatures. Therefore, putrescine quenched the intensity o...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.02.057

    authors: Moradi S,Shareghi B,Saboury AA,Farhadian S

    更新日期:2020-05-01 00:00:00

  • Synthesized different derivatives of low molecular fucoidan extracted from Laminaria japonica and their potential antioxidant activity in vitro.

    abstract::Six low molecular fucoidan (DFPS) derivatives were synthesized successfully, and their potential antioxidant activities were investigated employing various established in vitro systems. All DFPS derivatives possessed considerable antioxidant activity, and had stronger antioxidant ability than DFPS in certain tests. Th...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2009.02.001

    authors: Wang J,Wang F,Zhang Q,Zhang Z,Shi X,Li P

    更新日期:2009-06-01 00:00:00

  • Inhibiting c-Jun N-terminal kinase (JNK)-mediated apoptotic signaling pathway in PC12 cells by a polysaccharide (CCP) from Coptis chinensis against Amyloid-β (Aβ)-induced neurotoxicity.

    abstract::In this study, we investigated the protective effect and possible mechanism of a polysaccharide (CCP) from Coptis chinensis against Amyloid-β protein (Aβ)-induced toxicity in PC12 cells. The results showed pretreatment with CCP significantly protected PC12 cells from Aβ25-35 induced cell death, lactate dehydrogenase (...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.05.041

    authors: Li Y,Wang B,Liu C,Zhu X,Zhang P,Yu H,Li Y,Li Z,Li M

    更新日期:2019-08-01 00:00:00

  • Catalytic biosynthesis of levan and short-chain fructooligosaccharides from sucrose-containing feedstocks by employing the levansucrase from Leuconostoc mesenteroides MTCC10508.

    abstract::Levansucrase gene (LmLEVS) was cloned from Leuconostoc mesenteroides MTCC 10508. The heterologous expression and purification of the truncated (TrLmLEVS) gene, lacking the N-terminal signal peptide, was performed in Escherichia coli. The recombinant enzyme (TrLmLEVS) was physico-kinetically characterized using sucrose...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.01.070

    authors: Jadaun JS,Narnoliya LK,Agarwal N,Singh SP

    更新日期:2019-04-15 00:00:00

  • Molecular aspects on the specific interaction of cytotoxic plant alkaloid palmatine to poly(A).

    abstract::The interaction of the protoberberine alkaloid palmatine with single and double stranded structures of poly(A) was studied by various biophysical techniques. Comparative binding studies were also performed with double stranded DNA, t-RNA, poly(C).poly(G), poly(U) and poly(C). The results of competition dialysis, fluor...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2006.03.026

    authors: Giri P,Hossain M,Kumar GS

    更新日期:2006-11-15 00:00:00

  • Consolidated bioprocessing for production of polyhydroxyalkanotes from red algae Gelidium amansii.

    abstract::Noncompetitive carbon sources such as algae are unconventional and promising raw material for sustainable biofuel production. The capability of one marine bacterium, Saccharophagus degradans 2-40 to degrade red seaweed Gelidium amansii for production of polyhydroxyalkanoates (PHA) was evaluated in this study. S. degra...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2017.11.084

    authors: Sawant SS,Salunke BK,Kim BS

    更新日期:2018-04-01 00:00:00

  • Chemical properties and antioxidant activity of a water-soluble polysaccharide from Dendrobium officinale.

    abstract::In this report, a water-soluble polysaccharide was obtained from the dried stems of Dendrobium officinale Kimura et Migo by hot-water (70-75°C) extraction and 85% ethanol precipitation, and successively purification by DEAE-cellulose anion-exchange chromatography and gel-permeation chromatography. The D. officinale po...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2016.04.067

    authors: Luo QL,Tang ZH,Zhang XF,Zhong YH,Yao SZ,Wang LS,Lin CW,Luo X

    更新日期:2016-08-01 00:00:00

  • In vivo and ex vivo EPR detection of spin-labelled ovalbumin in mice.

    abstract::In this study, spin-labelled ovalbumin (SL-OVA), free or entrapped in liposomes, was administered to mice subcutaneously (s.c.) or intravenously (i.v.) with the aim to determine the conditions for pharmacokinetic studies of spin-labelled proteins by EPR and to measure the time course of SL-OVA distribution in vivo in ...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2010.06.006

    authors: Abramović Z,Brgles M,Habjanec L,Tomasić J,Sentjurc M,Frkanec R

    更新日期:2010-10-01 00:00:00

  • Protective effects of lentinan on lipopolysaccharide induced inflammatory response in intestine of juvenile taimen (Hucho taimen, Pallas).

    abstract::Antioxidant effects of lentinan on LPS induced inflammatory response in intestine of juvenile taimen were evaluated, and its prebiotic-like efficacy on intestinal microbiota was also investigated. The results showed that LPS decreased the activities of antioxidant enzymes and increased the expression levels of inflamm...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2018.09.121

    authors: Ren G,Xu L,Lu T,Zhang Y,Wang Y,Yin J

    更新日期:2019-01-01 00:00:00

  • Epimedium polysaccharide and propolis flavone can synergistically stimulate lymphocyte proliferation in vitro and enhance the immune responses to ND vaccine in chickens.

    abstract::Four prescriptions, epimedium flavone plus propolis flavone (EF-PF), epimedium flavone plus propolis extracts (EF-PE), epimedium polysaccharide plus propolis flavone (EP-PF) and epimedium polysaccharide plus propolis extracts (EP-PE), were prepared and their immune-enhancing effects were compared. In test in vitro, th...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2010.05.017

    authors: Fan Y,Hu Y,Wang D,Guo Z,Zhao X,Guo L,Zhao B,Zhang J,Wang Y,Nguyen TL

    更新日期:2010-08-01 00:00:00

  • Effect of storage and drying temperature on the gelation behavior and structural characteristics of sericin.

    abstract::Owing to unique properties, including the wound healing effect, sericin gel and films have attracted significant attention in the biomedical and cosmetic fields. The structural characteristics and properties of sericin gels and films are especially important owing to their effect on the performance of sericin in biome...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2015.09.016

    authors: Jo YN,Park BD,Um IC

    更新日期:2015-11-01 00:00:00

  • Chemical composition, structural features, surface morphology and bioactivities of chitosan derivatives from lobster (Thenus unimaculatus) shells.

    abstract::The chemical composition, structural features and bioactivities of chitosan derivatives were studied and reported here. Chitin and chitosan was extracted by chemical methods and yield was recorded 35% and 41%, moisture and ash has showed 7.4, 0.73, 1.2 and 0.79% and Ca was recorded high level (590 ppm). The IR spectru...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.06.033

    authors: Arasukumar B,Prabakaran G,Gunalan B,Moovendhan M

    更新日期:2019-08-15 00:00:00

  • Preparation and antibacterial properties of ε-polylysine-containing gelatin/chitosan nanofiber films.

    abstract::An effective antibacterial nanofiber film was prepared through the incorporation of ε-polylysine (ε-PL) into gelatin/chitosan-based polymers. All nanofiber films had uniformly disordered fibrous structure with good diameter distribution. The weight ratio of the gelatin/chitosan/ε-PL (G/C/P) influenced the solution pro...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.08.152

    authors: Liu F,Liu Y,Sun Z,Wang D,Wu H,Du L,Wang D

    更新日期:2020-12-01 00:00:00

  • Chemical characterization of polysaccharides isolated from scrophularia ningpoensis and its protective effect on the cerebral ischemia/reperfusin injury in rat model.

    abstract::This study was designed to investigate the chemical characterization of scrophularia ningpoensis polysaccharides (SNP) and its protective activity on the cerebral ischemia/reperfusin injury (CIRI) rats. SNP was successfully isolated and fractionated by anion exchange chromatography and gel filtration into different fa...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.08.040

    authors: Ma S,Liu X,Cheng B,Jia Z,Hua H,Xin Y

    更新日期:2019-10-15 00:00:00

  • Enhancing the thermostability of Rhizopus chinensis lipase by rational design and MD simulations.

    abstract::To improve the thermostability of r27RCL from Rhizopus chinensis and broaden its industrial applications, we used rational design (FoldX) according to ΔΔG calculation to predict mutations. Four thermostable variants S142A, D217V, Q239F, and S250Y were screened out and then combined together to generate a quadruple-mut...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.05.243

    authors: Wang R,Wang S,Xu Y,Yu X

    更新日期:2020-10-01 00:00:00

  • Solubility and aggregation of soy protein isolate induced by different ionic liquids with the assistance of ultrasound.

    abstract::The aim of this study was to evaluate the effects of ionic liquids (ILs) and ultrasound on the solubility and aggregation behavior of soy protein isolate (SPI). A variety of ILs were tested. Results showed that changes in cation or anion altered the physicochemical properties of ionic liquids, which in turn influenced...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2020.08.031

    authors: Huang L,Zhang W,Yan D,Ma L,Ma H

    更新日期:2020-12-01 00:00:00

  • Microbial serine protease inhibitors and their therapeutic applications.

    abstract::Serine protease inhibitors, inhibit serine proteases either partially or completely after forming complexes with their respective proteases. Protease actions are significant for many physiological pathways found in living forms and any anomalies may lead to numerous physiological complications. Each cell or organism h...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章,评审

    doi:10.1016/j.ijbiomac.2017.09.115

    authors: Harish BS,Uppuluri KB

    更新日期:2018-02-01 00:00:00

  • Extraction, characterization and in vitro antioxidant activity of polysaccharides from Carex meyeriana Kunth using different methods.

    abstract::Response surface methodology (RSM) combined with a Box-Behnken design (BBD) was used to optimize the hot-water extraction (HWE) conditions which were determined to be: liquid-solid ratio 29.25:1 mL/g, extraction time 1.66 h, extraction temperature 95 °C, the optimized yield of polysaccharides 0.47 ± 0.01% (n = 3). Hot...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2018.09.125

    authors: Hu Z,Wang P,Zhou H,Li Y

    更新日期:2018-12-01 00:00:00

  • Interaction of three new tetradentates Schiff bases containing N2O2 donor atoms with calf thymus DNA.

    abstract::Interaction of 1,3-bis(2-hydroxy-benzylidene)-urea (H2L1), 1,3-bis(2-hydroxy-3-methoxy-benzylidene)-urea (H2L2) and 1,3-bis(2-hydroxy-3-methoxy-benzylidene)-urea nickel(II) (NiL2) with calf-thymus DNA were investigated by UV-vis absorption, fluorescence emission and circular dichroism (CD) spectroscopy as well as cycl...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2015.03.016

    authors: Ajloo D,Shabanpanah S,Shafaatian B,Ghadamgahi M,Alipour Y,Lashgarbolouki T,Saboury AA

    更新日期:2015-01-01 00:00:00

  • Cytotoxic, genotoxic, and oxidative stress-inducing effect of an l-amino acid oxidase isolated from Bothrops jararacussu venom in a co-culture model of HepG2 and HUVEC cells.

    abstract::Hepatocellular carcinoma incidence rates have increased worldwide, which encouraged the development of new chemotherapeutic drugs. l-Amino acid oxidases from snake venoms are cytotoxic towards human tumor cells in in vitro monoculture systems, which do not simulate the tumor microenvironment. We examined the antitumor...

    journal_title:International journal of biological macromolecules

    pub_type: 杂志文章

    doi:10.1016/j.ijbiomac.2019.01.059

    authors: Machado ART,Aissa AF,Ribeiro DL,Costa TR,Ferreira RS Jr,Sampaio SV,Antunes LMG

    更新日期:2019-04-15 00:00:00