Physicochemical and mechanical characterization of galactomannan from Mimosa scabrella: Effect of drying method

Vendruscolo, Cristina W.; Ferrero, C; Pineda, Edgardo Alfonso Gómez; Silveira, Joana Léa Meira; Freitas, Rilton Alves de; Jiménez-Castellanos, M.R.; Bresolin, Tania Mari Bellé

doi:10.1016/j.carbpol.2008.09.028

Cited by 117 publications

(64 citation statements)

References 32 publications

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“…There was no difference in pH between the two samples of polysaccharide aqueous solutions, and Table 1 shows that the B. striata polysaccharide is a neutral heteropolysaccharide with a reported discrepancy (Han, Wang, Bi, & Liu, 2013), which may be due to different sources of B. striata leading to its structural diversity (Cui, 2005). The experimental results further illustrated that the B. striata polysaccharide did not contain uronic acid, which is consistent with a neutral polysaccharide pH (Vendruscolo, Ferrero, & Pineda, 2009).…”

Section: Physicochemical Properties Of B Striata Polysaccharidesupporting

confidence: 86%

“…When the chain lengths of a monodisperse polymer are the same, the Mw/Mn is equal to 1. The Mw/Mn of BFPS and BVPS was 1.31 and 1.21, respectively, showing that the molecular weight distribution is narrow for both BFPS and BVPS, which is similar to that the reported of galactomannans (Vendruscolo et al, 2009).…”

Section: Molecular Weight and Monosaccharide Compositionsupporting

confidence: 80%

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Physicochemical characterization of the polysaccharide from Bletilla striata : Effect of drying method

Kong

Feng

et al. 2015

Carbohydrate Polymers

200

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Section: Physicochemical Properties Of B Striata Polysaccharidesupporting

confidence: 86%

Section: Molecular Weight and Monosaccharide Compositionsupporting

confidence: 80%

Physicochemical characterization of the polysaccharide from Bletilla striata : Effect of drying method

Kong

Feng

et al. 2015

Carbohydrate Polymers

200

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“…Similar results were found by Mittal et al [2] in the thermal analysis of galactomannan extracted from the Leucaena leucocephala seeds. The second event occurred around 290.5°C and is attributed to the polysaccharides' thermal decomposition with a mass loss of 68.19%, corroborating the data found in the literature [15], where the galactomannan's thermal behavior obtained from Mimosa scrabella seeds evidenced a mass loss of approximately 60% in the same temperature range that was found in this work.…”

Section: Fourier Transform Infrared (Ftir) Spectroscopysupporting

confidence: 91%

“…1. This physical-chemical characteristic was similar to that reported by Vendrusculo et al [15] for galactomannan extracted from M. scabrella. Proximity to neutral pH implies that it will not cause irritation when used in formulations and may be accepted as a neutral excipient in various pharmaceutical formulations, including emulsions and gels.…”

Section: Fouriersupporting

confidence: 90%

Biopolymer from Adenanthera pavonina L. Seeds: Characterization, Photostability, Antioxidant Activity, and Biotoxicity Evaluation

Melo

Geronço

Sousa

et al. 2018

International Journal of Polymer Science

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Plant polysaccharides have been increasingly employed in the pharmaceutical, industrial, and food environments due to their versatile functional properties. In the present investigation, a heteropolysaccharide galactomannan (GAP) was extracted from Adenanthera pavonina L. seeds and characterized by physicochemical analyses to determine its thermal properties, photostability, antioxidant activity, and acute toxicity. GAP was characterized by FTIR, DSC, and TG. The photostability of GAP submitted to artificial UV irradiation was analyzed. Antioxidant activity was evaluated by the DPPH (2,2-diphenyl-1-1-picrylhydrazyl) free radical-scavenging method, while a bioassay method was carried out to study acute toxicity in Artemia salina L. Physical-chemical and functional characteristics of GAP support its potential role in the food and pharmaceutical industries. GAP was photostable under UV irradiation. In vitro GAP antioxidant evaluation showed that it bears free radicalscavenging activity for DPPH radicals. The median lethal concentration (LC 50 ) of GAP was 239.4 mg•mL −1 , indicating that this biopolymer is nontoxic. Such results indicate that this biopolymer presents characteristics of neutrality, photostability, and nontoxicity that are commercially attractive.

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“…Thermogravimetry analysis of mucilage showed three stages of decomposition. The early minor weight loss in samples is attributed to the loss of adsorbed and structural water of biopolymers as explained by other authors (Vendruscolo et al, 2009;Kittur et al, 2002), or due to desorption of moisture as hydrogen bound water to the saccharide structure. The second weight loss event may be attributed to the polysaccharide decomposition (Zohuriaan, Shokrolahi 2004;Varma et al, 1997) and is described by a weight loss.…”

Section: Thermogravimetry Analysismentioning

confidence: 67%

Physico-chemical and structural characterization of mucilage isolated from seeds of Diospyros melonoxylon Roxb.

Singh¹,

Bothara²

2014

Braz. J. Pharm. Sci.

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Mucilage was isolated from the seeds of Diospyros melonoxylonRoxb., a plant growing naturally in the forests of India. Various physico-chemical methods like particle analysis, scanning electron microscopy, differential scanning calorimetry, differential thermal analysis, thermogravimetry analysis, molecular weight by gel permeation chromatography, rheometry, elemental analysis, x-ray diffraction spectrometry, zeta potential, fourier transform infrared spectroscopy, 1D(1H and 13C) (NMR) have been employed to characterize this gum in the present study. Particle analyses suggest that mucilage had particle size in nanometer. SEM analysis suggested that the mucilage had irregular particle size. The glass transition temperature of the gum observed was 78 °C and 74 °C by DSC and DTA respectively. The Thermogravimetry analysis suggested that mucilage had good thermal stability with two stage decomposition. The molecular weight of mucilage was determined to be 8760, by gel permeation chromatography, while the viscosity of mucilage was observed to be 219.1 cP. The XRD pattern of the mucilage indicated a complete amorphous nature. Elemental analysis of the gum revealed specific contents of carbon, hydrogen, nitrogen and sulfur. The major functional groups identified from FT-IR spectrum include 3441 cm-1 (-OH), 1632 cm-1 (-COO-), 1414 cm-1 (-COO-) and 1219 cm-1 (-CH3CO). Analysis of mucilage by paper chromatography and 1D NMR indicated the presence of sugars.

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Physicochemical and mechanical characterization of galactomannan from Mimosa scabrella: Effect of drying method

Cited by 117 publications

References 32 publications

Physicochemical characterization of the polysaccharide from Bletilla striata : Effect of drying method

Physicochemical characterization of the polysaccharide from Bletilla striata : Effect of drying method

Biopolymer from Adenanthera pavonina L. Seeds: Characterization, Photostability, Antioxidant Activity, and Biotoxicity Evaluation

Physico-chemical and structural characterization of mucilage isolated from seeds of Diospyros melonoxylon Roxb.

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