Rheological behaviours of guar gum derivatives with hydrophobic unsaturated long-chains

Zhang, Minghua; He, Jiyu; Deng, Mingyu; Gong, Peixin; Zhang, Xi; Fan, Minmin; Wang, Ke

doi:10.1039/d0ra04322b

Cited by 14 publications

(1 citation statement)

References 32 publications

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“…In addition, the difference between the viscoelastic moduli values indirectly describes the relaxation time of the polymer required to attain the perturbed equilibrium via the oscillation. The wider variation in the viscoelastic moduli explicates the longer relaxation time which is inversely proportional to the cross‐over frequency (Zhang et al, 2020). Higher cross‐over frequency explains the shorter time for relaxation which in turn defines the lesser molar mass of the system.…”

Section: Resultsmentioning

confidence: 99%

Impact of pin‐to‐plate cold plasma depolymerization on the gelation and functional attributes of guar galactomannan

Kalaivendan

Eazhumalai

Annapure

2023

J Food Process Engineering

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The present study aimed to investigate the impact of pin-to-plate cold plasma on the gelation and functional attributes of guar seed galactomannan. The guar galactomannan was subjected to 170 and 230 V treatment for 30 and 60 min and investigated for the gel characteristics and functional properties. The cold plasma treatment incurred galactomannan chain depolymerization with a reduction in the degree of polymerization (DP) ranging from 7.33% to 48.99%. The water contact angle (WCA) reduced from 110.93 to 95.54 , thus increasing the hydration capacity (36.73-45.90 g/g). These mechanisms diminish the gel viscosity (from 798. 227 cP of UT to 334.65 cP at 230-60) and the viscoelastic moduli (G 0 and G 00 ) indicating the low strength of gels from plasma-treated galactomannan (PT-GG). This further influenced the least gelation concentration, foam capacity, and foam stability. However, the critical strain (from 11.83% [UT] to 41% [230-60]), cross-over frequency (from 3.39 Hz [UT] to 15.3 Hz [230-60]), and degradation activation energy (from 18.445 kJ/mol [UT] to 21.721 kJ/mol [230-60]) of the PT-GG were increased (from 18.445 kJ/mol [UT] to 21.721 kJ/mol [230-60]) signifying the increased stability of gels by intramolecular and electrostatic forces. Thus, the cold plasma-induced depolymerization and hydrophilic modification of galactomannan influence the gelation and functional attributes which widen the potential applications of the hydrocolloid. Practical ApplicationsDepolymerized guar gum is industrially known for its specific applications such as lowviscosity source of dietary fiber, stabilizers, complex forming, and encapsulating agents.This study shows the potential of cold plasma processing as an eco-friendly sustainable technology for producing depolymerized guar gum which can be applied as a source of fiber in enteral feed formulations, stabilizers in low viscous spreads and sauces, and also in thermo-reversible gel networks due to its thermal gel transition attributes.

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Section: Resultsmentioning

confidence: 99%

Impact of pin‐to‐plate cold plasma depolymerization on the gelation and functional attributes of guar galactomannan

Kalaivendan

Eazhumalai

Annapure

2023

J Food Process Engineering

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Elaboration and Experimental Investigation of Zn-Ni-Co Spinel Ferrite Multi-doped Rare-Earth (Gd, Er, and Sm) Prepared by Coprecipitation Method

Belaiche

Minaoui

Ouadou

et al. 2022

J Supercond Nov Magn

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Magnetic and Structural Properties of Novel-Coated Ni0.5Co0.5Fe1.6Gd0.2Mo0.1Sm0.1O4 Spinel Ferrite Nanomaterial: Experimental and Theoretical Investigations

Hssaini

Belaı̈che

Elansary

et al. 2022

J Supercond Nov Magn

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Rheological behaviours of guar gum derivatives with hydrophobic unsaturated long-chains

Abstract: The rheological behaviors of three hydrophobically modified guar gum derivatives in aqueous solutions were systematically studied for practical applications.

Cited by 14 publications

References 32 publications

Impact of pin‐to‐plate cold plasma depolymerization on the gelation and functional attributes of guar galactomannan

Impact of pin‐to‐plate cold plasma depolymerization on the gelation and functional attributes of guar galactomannan

Elaboration and Experimental Investigation of Zn-Ni-Co Spinel Ferrite Multi-doped Rare-Earth (Gd, Er, and Sm) Prepared by Coprecipitation Method

Magnetic and Structural Properties of Novel-Coated Ni0.5Co0.5Fe1.6Gd0.2Mo0.1Sm0.1O4 Spinel Ferrite Nanomaterial: Experimental and Theoretical Investigations

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