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You searched for: Journal Carbohydrate polymers Remove constraint Journal: Carbohydrate polymers Publication Year 2014 Remove constraint Publication Year: 2014 Source 2014 v.102 Remove constraint Source: 2014 v.102
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1. Absorbent alginate fibres modified with hydrolysed chitosan for wound care dressings – II. Pilot scale development

Author:
Sweeney, I.R.; Miraftab, M.; Collyer, G.
Source:
Carbohydrate polymers 2014 v.102 pp. 920-927
ISSN:
0144-8617
Subject:
absorption; anti-infective properties; chitosan; extrusion; hardness; hydrolysis; staining; surface area; tensile strength
Abstract:
... Fibres have been used extensively in wound dressing applications as they provide a high surface area for absorption, ease of fabrication and softness. It is common practice for commercial wound dressings to be produced from natural materials, such a marine polysaccharides, as they are predominantly biocompatible, non-toxic, and often display bioactive properties, such as inherent antimicrobial act ...
DOI:
10.1016/j.carbpol.2013.10.053

2. A comparison study on extraction of polysaccharides from Tricholoma matsutake by response surface methodology

Author:
Yin, Xiulian; You, Qinghong; Su, Xiaoye
Source:
Carbohydrate polymers 2014 v.102 pp. 419-422
ISSN:
0144-8617
Subject:
Tricholoma matsutake; energy; polysaccharides; response surface methodology; ultrasonics
Abstract:
... The Tricholoma matsutake polysaccharides (TMP) extraction was optimized using counter-current probe ultrasonic extraction (CCPUE) by response surface methodology (RSM). The effect of three factors (liquid–solid ratio, extraction time and pulse duration) on the TMP yield was studied. The results showed that the optimal conditions were liquid–solid ratio (15), extraction time (61min) and pulse durat ...
DOI:
10.1016/j.carbpol.2013.11.072

3. Amphiphilic hyaluronic acid derivatives toward the design of micelles for the sustained delivery of hydrophobic drugs

Author:
Mayol, Laura; Biondi, Marco; Russo, Luisa; Malle, Birgitte M.; Schwach-Abdellaoui, Khadija; Borzacchiello, Assunta
Source:
Carbohydrate polymers 2014 v.102 pp. 110-116
ISSN:
0144-8617
Subject:
anti-inflammatory agents; differential scanning calorimetry; freezing; gels; hyaluronic acid; hydrophobicity; micelles; solubility; therapeutics; viscoelasticity
Abstract:
... The idea of this study was to combine hyaluronic acid (HA) viscosupplementation and a local/controlled delivery of a hydrophobic anti-inflammatory drug. To this aim, we investigated the ability of an octenyl succinic anhydride (OSA) modified HA (OSA–HA), to act as a solubility enhancer and as a platform for slow release of hydrophobic drug(s). This novel HA derivative could act as a viscosupplemen ...
DOI:
10.1016/j.carbpol.2013.11.003

4. Analysis of a preferential action of α-amylase from B. licheniformis towards amorphous regions of waxy maize starch

Author:
Foresti, María Laura; Williams, María del Pilar; Martínez-García, Ricardo; Vázquez, Analía
Source:
Carbohydrate polymers 2014 v.102 pp. 80-87
ISSN:
0144-8617
Subject:
Bacillus licheniformis; X-radiation; X-ray diffraction; alpha-amylase; carbohydrate structure; corn starch; crystal structure; enzymatic treatment; granules; growth rings; hydrolysis; quantitative analysis; scanning electron microscopy; starch granules; waxy corn
Abstract:
... Waxy maize starch was subjected to α-amylase (Bacillus licheniformis) hydrolysis in buffered medium to determine the evolution of reaction in quantitative terms and also in terms of the morphology and crystallinity of the partially hydrolyzed starch granules. Gathered data allowed studying the pattern of action of this α-amylase over waxy maize starch granules, with particular focus on a preferent ...
DOI:
10.1016/j.carbpol.2013.11.013

5. Analysis of compositional monosaccharides in fungus polysaccharides by capillary zone electrophoresis

Author:
Hu, Yuanyuan; Wang, Tong; Yang, Xingbin; Zhao, Yan
Source:
Carbohydrate polymers 2014 v.102 pp. 481-488
ISSN:
0144-8617
Subject:
Termitomyces albuminosus; aldoses; borates; capillary zone electrophoresis; fungi; monosaccharides; pH; polysaccharides; temperature; uronic acids
Abstract:
... A rapid analytical method of capillary zone electrophoresis (CZE) was established for the simultaneous separation and determination of 10 monosaccharides (aldoses and uronic acids). The monosaccharides were labeled with 1-phenyl-3-methyl-5-pyrazolone (PMP), and subsequently separated using an uncoated capillary (50μm i.d.×58.5cm) and detected by UV at 245nm with pH 11.0, 175mM borate buffer at vol ...
DOI:
10.1016/j.carbpol.2013.11.054

6. A nonlinear isotherm model for sorption of anionic dyes on cellulose fibers: A case study

Author:
Xu, Changhai; Tang, Wenjuan; Du, Jinmei
Source:
Carbohydrate polymers 2014 v.102 pp. 808-812
ISSN:
0144-8617
Subject:
case studies; cellulose; cellulosic fibers; cotton; dyes; ionization; models; oxidation; sorption
Abstract:
... The sorption data of an anionic dye on cellulose fiber are often correlated with a log-linear model to determine the internal accessible volume of the fiber to the anionic dye (V, L/kg) and as such the standard affinity of the anionic dye to the fiber (−Δμ°, J/mol), but without taking into account the influence of ionized carboxyl groups due to cellulose oxidation ([COO−]f, mol/kg). In this study, ...
DOI:
10.1016/j.carbpol.2013.10.086

7. A novel catalysis by porcine pepsin in debranching guar galactomannan

Author:
Shobha, Mysore S.; Gowda, Lalitha R.; Tharanathan, Rudrapatam N.
Source:
Carbohydrate polymers 2014 v.102 pp. 615-621
ISSN:
0144-8617
Subject:
Staphylococcus aureus; active sites; catalytic activity; composite polymers; galactose; gastric mucosa; guar gum; hydrolysis; mannose; models; pepsin; peptide mapping; proteolysis; swine
Abstract:
... Pepsin (porcine stomach mucosa, E.C. 3.4.23.1), an acid protease catalyzes the hydrolysis (debranching) of guar galactomannan (GG), a co-polymer of mannose and galactose residues thereby showing its non-specific catalysis towards glycosidic substrates.Use of non-specific inhibitors, chemical modification agents and peptide mapping of native and GG – bound pepsin upon proteolytic digestion with Sta ...
DOI:
10.1016/j.carbpol.2013.11.043

8. A novel polymer based on MtCu2+/cellulose acetate with antimicrobial activity

Author:
Bruna, J.E.; Galotto, M.J.; Guarda, A.; Rodríguez, F.
Source:
Carbohydrate polymers 2014 v.102 pp. 317-323
ISSN:
0144-8617
Subject:
Escherichia coli; X-ray diffraction; anti-infective properties; cellulose acetate; clay; differential scanning calorimetry; food packaging; montmorillonite; nanocomposites; nanoparticles; polymers; thermal stability; thermogravimetry; transmission electron microscopy
Abstract:
... Cellulose acetate (CA)/copper montmorillonite modified (MtCu2+) antimicrobial nanocomposites for food packaging containing 1, 3 and 5wt.% nanoparticles were prepared by solution casting technique. X-ray diffraction (XRD) and transmission electron microscopy revealed the existence of intercalated and no intercalated clay form in the CA matrix. The thermal stability of the MtCu2+/CA nanocomposites w ...
DOI:
10.1016/j.carbpol.2013.11.038

9. Antibacterial activity of polyacrylonitrile–chitosan electrospun nanofibers

Author:
Kim, Sam Soo; Lee, Jaewoong
Source:
Carbohydrate polymers 2014 v.102 pp. 231-237
ISSN:
0144-8617
Subject:
Escherichia coli; Micrococcus luteus; Staphylococcus aureus; antibacterial properties; chitosan; coagulation; differential scanning calorimetry; dimethyl sulfoxide; glass; glass transition temperature; nanofibers; polyacrylonitrile; scanning electron microscopy; sodium hydroxide; thermal properties
Abstract:
... Polyacrylonitrile (PAN)–chitosan double-face films and nanofibers were manufactured. PAN and a chitosan salt were dissolved in dimethyl sulfoxide, and then thin-layered on a glass plate or electro-spun followed by coagulation in sodium hydroxide solution. The morphology of the PAN–chitosan double-face films and nanofibers was analyzed by scanning electron microscopy. The thermal behavior and the g ...
DOI:
10.1016/j.carbpol.2013.11.028

10. Antimicrobial and physical-mechanical properties of agar-based films incorporated with grapefruit seed extract

Author:
Kanmani, Paulraj; Rhim, Jong-Whan
Source:
Carbohydrate polymers 2014 v.102 pp. 708-716
ISSN:
0144-8617
Subject:
Bacillus cereus; Escherichia coli; Fourier transform infrared spectroscopy; Listeria monocytogenes; X-ray diffraction; agar; anti-infective agents; antibacterial properties; antimicrobial packaging; biodegradability; color; composite materials; crystal structure; food packaging; food pathogens; food safety; grapefruits; hydrophobicity; microstructure; modulus of elasticity; packaging films; permeability; recycling; scanning electron microscopy; seed extracts; shelf life; solvents; tensile strength; thermal stability; water content; water solubility; water vapor
Abstract:
... The use of synthetic petroleum based packaging films caused serious environmental problems due to their difficulty in recycling and poor biodegradability. Therefore, present study was aimed to develop natural biopolymer-based antimicrobial packaging films as an alternative for the synthetic packaging films. As a natural antimicrobial agent, grapefruit seed extract (GSE) has been incorporated into ...
DOI:
10.1016/j.carbpol.2013.10.099

11. Antitumor and immunomodulatory effects of a water-soluble polysaccharide from Lilii Bulbus in mice

Author:
Sun, Xin; Gao, Rui-Lan; Xiong, Yao-Kang; Huang, Qing-Cheng; Xu, Min
Source:
Carbohydrate polymers 2014 v.102 pp. 543-549
ISSN:
0144-8617
Subject:
antineoplastic activity; antineoplastic agents; glucans; immunomodulation; interleukin-12; interleukin-2; interleukin-6; intraperitoneal injection; lung neoplasms; macrophages; mice; molecular weight; phagocytosis; splenocytes; traditional medicine; tumor necrosis factor-alpha
Abstract:
... Lilii Bulbus is a popular folk medicine in the worldwide and has attracted great attention due to its bioactivity against respiratory system diseases (include lung cancers). This study was the first report providing in vivo evidences of antitumor potential of the bioactive polysaccharide from Lilii Bulbus. One major fraction (LBP-1) was obtained by purifying the crude polysaccharides extracted fro ...
DOI:
10.1016/j.carbpol.2013.12.002

12. Application of different feeding strategies in fed batch culture for pullulanase production using sago starch

Author:
R., Shankar; M.S., Madihah; E.M., Shaza; K.O., Nur Aswati; A.A., Suraini; K., Kamarulzaman
Source:
Carbohydrate polymers 2014 v.102 pp. 962-969
ISSN:
0144-8617
Subject:
Anoxybacillus flavithermus; agitation; batch systems; bioreactors; feeding methods; maltotriose; pullulanase; sago; temperature
Abstract:
... The production of pullulanase by Bacillus flavothermus KWF-1 in batch and fed batch culture were compared using 2L bioreactor. In batch culture, 0.0803U/mL of pullulanase activity with specific activity of 0.0213U/mg was produced by controlling the agitation speed and temperature at 200rpm and 50°C, respectively. Fed batch production was studied by feeding the culture with different sago starch co ...
DOI:
10.1016/j.carbpol.2013.10.031

13. Artemisia absinthium and Artemisia vulgaris: A comparative study of infusion polysaccharides

Author:
Corrêa-Ferreira, Marília Locatelli; Noleto, Guilhermina Rodrigues; Oliveira Petkowicz, Carmen Lúcia
Source:
Carbohydrate polymers 2014 v.102 pp. 738-745
ISSN:
0144-8617
Subject:
Artemisia absinthium; Artemisia vulgaris; aerial parts; arabinogalactans; chemical structure; fructans; galactose; medicinal properties; nuclear magnetic resonance spectroscopy; polymers; secondary metabolites
Abstract:
... The aerial parts of Artemisia absinthium and Artemisia vulgaris are used in infusions for the treatment of several diseases. Besides secondary metabolites, carbohydrates are also extracted with hot water and are present in the infusions. The plant carbohydrates exhibit several of therapeutic properties and their biological functions are related to chemical structure. In this study, the polysacchar ...
DOI:
10.1016/j.carbpol.2013.10.096

14. Biocompatible sodium alginate fibers by aqueous processing and physical crosslinking

Author:
Shen, Wei; Hsieh, You-Lo
Source:
Carbohydrate polymers 2014 v.102 pp. 893-900
ISSN:
0144-8617
Subject:
calcium chloride; crosslinking; crystallization; ethanol; polyvinyl alcohol; sodium alginate; spinning; viscosity
Abstract:
... Sodium alginate (SA) hybrid fibers have been robustly fabricated by electrospinning of aqueous mixtures containing as high as 60% SA in the presence of polyvinyl alcohol (PVA). Solution viscosities of SA, PVA and their mixtures showed fiber spinning to be strongly influenced by the balance between SA–PVA and PVA–PVA intermolecular polar interaction and SA–SA repulsion. Low viscosity SAl (50mPas at ...
DOI:
10.1016/j.carbpol.2013.10.066

15. Bio-composites of cassava starch-green coconut fiber: Part II—Structure and properties

Author:
Lomelí-Ramírez, María Guadalupe; Kestur, Satyanarayana G.; Manríquez-González, Ricardo; Iwakiri, Setsuo; de Muniz, Graciela Bolzon; Flores-Sahagun, Thais Sydenstricker
Source:
Carbohydrate polymers 2014 v.102 pp. 576-583
ISSN:
0144-8617
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; biocomposites; cassava; cassava starch; coconuts; crystal structure; fiber content; glass transition temperature; glycerol; starch; storage modulus; tensile strength; thermal stability; Brazil
Abstract:
... Development of any new material requires its complete characterization to find potential applications. In that direction, preparation of bio-composites of cassava starch containing up to 30wt.% green coconut fibers from Brazil by thermal molding process was reported earlier. Their characterization regarding physical and tensile properties of both untreated and treated matrices and their composites ...
DOI:
10.1016/j.carbpol.2013.11.020

16. Characterisation of cellulose films regenerated from acetone/water coagulants

Author:
Geng, Hongjuan; Yuan, Zaiwu; Fan, Qingrui; Dai, Xiaonan; Zhao, Yue; Wang, Zhaojiang; Qin, Menghua
Source:
Carbohydrate polymers 2014 v.102 pp. 438-444
ISSN:
0144-8617
Subject:
acetone; aqueous solutions; cellulose; coagulants; dimensional stability; drugs; films (materials); filtration; microstructure; strength (mechanics); urea
Abstract:
... A precooled aqueous solution of 7wt% NaOH/12wt% urea was used to dissolve cellulose up to a concentration of 2wt%, which was then coagulated in an acetone/water mixture to regenerate cellulose film. The volume ratio of acetone to water (φ) had a dominant influence on film dimensional stability, film-forming ability, micromorphology, and mechanical strength. The film regenerated at φ=2.0 showed exc ...
DOI:
10.1016/j.carbpol.2013.11.071

17. Characteristics of starch isolated from maize as a function of grain storage temperature

Author:
Paraginski, Ricardo Tadeu; Vanier, Nathan Levien; Moomand, Khalid; de Oliveira, Maurício; Zavareze, Elessandra da Rosa; e Silva, Ricardo Marques; Ferreira, Cristiano Dietrich; Elias, Moacir Cardoso
Source:
Carbohydrate polymers 2014 v.102 pp. 88-94
ISSN:
0144-8617
Subject:
X-radiation; corn; corn starch; crystal structure; enthalpy; gelatinization; granules; pasting properties; starch; storage temperature; stored grain
Abstract:
... Considering the importance of maize starch and the lack of knowledge about the effects of storage temperature on the isolated starch properties; maize grains were stored during 12 months at different temperatures (5, 15, 25 and 35°C). The extraction yield and the physicochemical, thermal, pasting, crystallinity and morphological properties of starches were determined. The starch isolated from grai ...
DOI:
10.1016/j.carbpol.2013.11.019

18. Characterization of new biodegradable edible film made from basil seed (Ocimum basilicum L.) gum

Author:
Khazaei, Naimeh; Esmaiili, Mohsen; Djomeh, Zahra Emam; Ghasemlou, Mehran; Jouki, Mohammad
Source:
Carbohydrate polymers 2014 v.102 pp. 199-206
ISSN:
0144-8617
Subject:
Ocimum basilicum; basil; biodegradability; color; edible films; extensibility; glycerol; permeability; plant gums; plasticizers; polymers; seeds; solubility; tensile strength; water vapor
Abstract:
... It is well known that the market for edible films is experiencing remarkable growth and expected to continue. This study investigated the using of basil seed gum (BSG) as a new film-forming material under the influence of addition of glycerol (GLY) as plasticizer. Edible films based on BSG and three different concentrations of GLY (25%, 35%, and 50% w/w BSG) were developed, and their water vapor p ...
DOI:
10.1016/j.carbpol.2013.10.062

19. Characterization of pectic polysaccharides extracted from apple pomace by hot-compressed water

Author:
Wang, Xin; Lü, Xin
Source:
Carbohydrate polymers 2014 v.102 pp. 174-184
ISSN:
0144-8617
Subject:
adenocarcinoma; antioxidants; apple pomace; ash content; colon; galacturonic acid; gels; heat; pectins; polymers; response surface methodology; temperature; viscosity
Abstract:
... Response surface methodology (RSM) was used to optimize the extraction of pectic polysaccharides from apple pomace by hot-compressed water, by which the optimum levels of the parameters were obtained as follows: extraction temperature 140°C, extraction time 5min, S:W ratio 1:14. Compared with commercial pectin, the Mw, galacturonic acid content, DM and protein of the extracted pectic polysaccharid ...
DOI:
10.1016/j.carbpol.2013.11.012

20. Chemical and rheological characterization of the carrageenans from Hypnea musciformis (Wulfen) Lamoroux

Author:
Cosenza, Vanina A.; Navarro, Diego A.; Fissore, Eliana N.; Rojas, Ana M.; Stortz, Carlos A.
Source:
Carbohydrate polymers 2014 v.102 pp. 780-789
ISSN:
0144-8617
Subject:
Hypnea; ambient temperature; fractionation; gelation; gels; iota-carrageenan; kappa carrageenan; macroalgae; melting point; methylation; nuclear magnetic resonance spectroscopy; potassium chloride; rheological properties
Abstract:
... This work reports a chemical and rheological study of the carrageenans from Hypnea musciformis, a red seaweed commercially known for its production of κ-carrageenan. The polysaccharides were extracted with water both at room temperature and at 90°C: the yield of the latter was about six times larger than the former. Fractionation with KCl yielded a large proportion (50–67%) of a precipitate with 0 ...
DOI:
10.1016/j.carbpol.2013.10.090