Investigation of stretching vibrations of glycosidic linkages in disaccharides and polysaccarides with use of IR spectra deconvolution

Nikonenko, N. A.; Buslov, D. K.; Sushko, N. I.; Zhbankov, R. G.

doi:10.1002/1097-0282(2000)57:4<257::aid-bip7>3.0.co;2-3

Cited by 175 publications

(80 citation statements)

References 19 publications

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“…The band at 683 cm -1 and the sharp peak at 1053 cm -1 , which are characteristic of carbohydrates, were assigned to C-H bend and C-O-C stretch signals, respectively (Tipson et al 1959;Monde et al 2004;Ardejani et al 2008;Yona et al 2014). The CH2OH side chain that is related to the C-O-H bending mode, and related to carbohydrates, was clearly observed at 1219 cm -1 (Tipson et al 1959;Nikonenko et al 2000;Kizil et al 2002). A discrete peak at 1122 cm -1 , that is characteristic of the ring structure, was attributed to the stretching vibrations of the C-O-C bonds (Sekkal et al 1995;Nikonenko et al 2000;Mohebby 2008;Yona et al 2014).…”

Section: Resultsmentioning

confidence: 97%

“…The CH2OH side chain that is related to the C-O-H bending mode, and related to carbohydrates, was clearly observed at 1219 cm -1 (Tipson et al 1959;Nikonenko et al 2000;Kizil et al 2002). A discrete peak at 1122 cm -1 , that is characteristic of the ring structure, was attributed to the stretching vibrations of the C-O-C bonds (Sekkal et al 1995;Nikonenko et al 2000;Mohebby 2008;Yona et al 2014). The 1→4 glycosidic linkage found amongst cellulose, hemicellulose derivatives, and di-and polysaccharides was assigned to a peak at 905 cm -1 (Sekkal et al 1995;Kizil et al 2002).…”

Section: Resultsmentioning

confidence: 99%

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Acid Liquefaction of Potato (Solanum tuberosum) and Sweet Potato (Ipomoea batatas) Cultivars Peels – Pre-Screening of Antioxidant Activity/Total Phenolic and Sugar Contents

Mateus

Ventura²,

Rego

et al. 2017

BioResources

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In the present study, the liquefaction of both regular and sweet potato peels was conducted to investigate the bio-oil produced, the sugar and total phenolic content, and antioxidant activity. Initially, the bio-oil obtained after liquefaction was partitioned into two different fractions, a hydrophilic fraction and the other consisted of the portion that contained the apolar compounds. Afterward, the samples of the whole bio-oil, aqueous extract, and organic phase of both cultivars were analyzed by attenuated total reflection-Fourier Transform infrared (ATR-FTIR) spectroscopy, hydroxyl number, and acid value. This was done in combination with assessment of the sugar and total phenolic contents and antioxidant activity. The samples demonstrated a considerable content of phenolic moieties in their composition. The antioxidant activity, which was assessed by the 2,2-diphenyl-1-picrylhydrazyl radical method, revealed that the antioxidants of the liquefied products and its extracts were generally better than that of butylated hydroxytoluene. Glucose, sucrose, and maltose were identified and quantified within all of the samples.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Acid Liquefaction of Potato (Solanum tuberosum) and Sweet Potato (Ipomoea batatas) Cultivars Peels – Pre-Screening of Antioxidant Activity/Total Phenolic and Sugar Contents

Mateus

Ventura²,

Rego

et al. 2017

BioResources

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“…Further, a recent infrared spectral study 30 in which monosaccharides were compared with disaccharides and polysaccharides concluded that stretching vibrations of COC 1 ! 4 glycosidic linkages in maltose, cellobiose, amylose, and cellulose could be assigned to two sets of bands located in the ranges 1175-1140 and 1000-970 cm 1 .…”

Section: Discussionmentioning

confidence: 99%

Surface‐enhanced Raman scattering (SERS) of random silver or gold particle arrays on aminodextran‐coated polystyrene beads

Siiman¹,

Ledis²

2005

J Raman Spectroscopy

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Citrate and/or chemically modified aminodextran (Amdex) SERS bands were detected from silver particleAmdex-polystyrene (PS) beads either as singlets or small clusters, prepared by reaction between aqueous silver nitrate, Amdex-coated PS beads, and aqueous sodium citrate solution. However, citrate on individual silver or gold particles of the same size was not detected with 633-nm excitation. SERS of dyes such as rhodamine 6 G was readily observed on individual silver particles or on the gold beads. Three distinct modes of citrate/modified-Amdex binding to the silver particle-Amdex-PS beads were characterized: (1) exchangeable citrate bound through one or more carboxylate groups -citrate could be washed away with H 2 O or D 2 O; displaced by successively greater concentrations of R6G; or squeezed out mechanically by applying the pressure of a second coverslip on top of a droplet of bead suspension; (2) nonexchangeable Amdex bound to silver via a primary alcoholate ion of oxidized, glutaraldehyde-cross-linked Amdex; and (3) nonexchangeable oxidized Amdex bound to silver via carboxylate group(s) but with H/D exchangeable alcohol hydrogen atom. That oxidation of the glucopyranose residues of Amdex on PS beads had taken place by Ag(I) as silver nitrate in aqueous solution to split out carboxylate groups was first identified from their characteristic vibrational modes in the SERS spectra of colloidal silver suspensions.Minimum amplification factors for (R6G on Ag)/(R6G on Au) with 633-nm excitation were estimated as 1 × 10 15 /1 × 10 11 . An extra SERS enhancement of about 1000-fold due to multiplicity of metal particles per bead was included.

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“…Band at 960 cm -1 was related to stretching vibrations with contributions from deformation vibrations of the uronic acids residues in heteropolymeric blocks (Leal et al, 2008). The signal at 625 and 580 cm -1 was attributed to the asymmetric and symmetric O=S=O deformation of sulfates (Sekkal & Legrand, 1993) and the presence of sulfated was confirmed by infrared spectra in both water-soluble extracts due to the characteristic absorption band at 1230 cm -1 (Nikonenko et al, 2000;Synytsya et al, 2010). These polysaccharides usually contain large proportions of L-fucose and sulfate, together with minor amounts of other sugars like xylose, galactose, mannose and glucuronic acid (Ponce et al, 2003).…”

Section: Discussionmentioning

confidence: 82%

Free radical scavenging activity of extracts from seaweeds Macrocystis pyrifera and Undaria pinnatifida: applications as functional food in the diet of prawn Artemesia longinaris

Díaz

Espino²,

Arzoz³

et al. 2017

lajar

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ABSTRACT. Water-soluble extracts from seaweeds Macrocystis pyrifera (M) and Undaria pinnatifida (U) were prepared to use the polysaccharide bioactive fraction as functional food. Chemical analysis showed that the main components of both extracts were mannitol and fucoidans. Also in both cases minor amounts of rhamnose, glucose, xylose and arabinose were determine. Content of fucose+galactose was higher in U. pinnatifida (8.7%) than in M. pyrifera (5.9%). Extracts were used as feed additive to Artemesia longinaris at inclusion levels of 1 and 2% (M1 and M2; U1 and U2), a diet without extract was used as control. Radical scavenging activities were estimated for two extracts and for midgut gland samples of experimental animals. Scavenging activity was detected in both extracts, the signal decayed to 50 and 62% in 18 min for U. pinnatifida and M. pyrifera, respectively. After 30 days of feeding, results did not show variation of survival, but growth was improved in animals fed with U1 and U2. Supplementation with 1 and 2% of U. pinnatifida showed similar quenching capacity of homogenates than those fed with M2 with a rapid 1,1-diphenylpicrylhydrazyl (DPPH) decay at 2 min of reaction. Recommended concentration for culture A. longinaris is 2%, as it is that produce the best antioxidant capacity, although the growth performance was improved also significantly only with U. pinnatifida extract.

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Investigation of stretching vibrations of glycosidic linkages in disaccharides and polysaccarides with use of IR spectra deconvolution

Cited by 175 publications

References 19 publications

Acid Liquefaction of Potato (Solanum tuberosum) and Sweet Potato (Ipomoea batatas) Cultivars Peels – Pre-Screening of Antioxidant Activity/Total Phenolic and Sugar Contents

Acid Liquefaction of Potato (Solanum tuberosum) and Sweet Potato (Ipomoea batatas) Cultivars Peels – Pre-Screening of Antioxidant Activity/Total Phenolic and Sugar Contents

Surface‐enhanced Raman scattering (SERS) of random silver or gold particle arrays on aminodextran‐coated polystyrene beads

Free radical scavenging activity of extracts from seaweeds Macrocystis pyrifera and Undaria pinnatifida: applications as functional food in the diet of prawn Artemesia longinaris

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