Guar gum and its composites as potential materials for diverse applications: A review

Sharma, Gaurav; Sharma, Shweta; Kumar, Amit; Al-Muhtaseb, Ala’a H.; Naushad, Mu.; Ghfar, Ayman A.; Mola, Genene Tessema; Stadler, Florian J.

doi:10.1016/j.carbpol.2018.07.053

Cited by 348 publications

(106 citation statements)

References 109 publications

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“…Commercial GG contains ≈18–24% insoluble residues, which are primarily crude fiber and protein as well as water . This polysaccharide must be purified prior to spinning since the prepared solutions form droplets instead of fibers during electrospinning, as shown in Figure A, which is consistent with a previous report .…”

Section: Methodssupporting

confidence: 88%

Improvement in the Oxidative Stability of Flaxseed Oil Using an Edible Guar Gum‐Tannic Acid Nanofibrous Mat

Yang

Jiang

et al. 2019

Euro J Lipid Sci & Tech

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In this study, tannic acid (TA), a natural antioxidant, is successfully encapsulated into a plant‐based guar gum fibrous mat by electrospinning without using an organic solvent. An upper threshold of 10 wt% TA (based on the dry weight of guar gum [GG]) and 2 wt% guar gum is the optimum composition to achieve a defect‐free structure through electrospinning. The obtained nanofibers have a mean diameter of 96 ± 22 nm. The effect of the encapsulated TA in the fibrous mat (200 ppm) on the oxidation of unrefined flaxseed oil (FO) is investigated over 30 days of storage at an elevated temperature (60 °C) and compared with the effect of butylated hydroxytoluene (BHT), a synthetic antioxidant, and non‐encapsulated TA at the same concentrations. Changes in the fatty acid composition, the conjugated diene content, the peroxide value, the content of thiobarbituric acid reactive substances (TBARS) and the p‐anisidine content are monitored as indicators of the oxidative stability. The TA fibrous mat exhibits different inhibitory effects on the oxidation of unsaturated fatty acids and is more effective than non‐encapsulated TA and BHT in reducing the rate of primary oxidation and secondary oxidation of FO as evaluated by all the oxidation indicators except the TBARS values for which BHT displays the greatest inhibition. Overall, the results demonstrate that the encapsulation of natural antioxidants into fibrous mats could potentially be used to preserve edible oils. Practical Applications: This is the first paper using plant‐based fibrous mats encapsulating natural antioxidant to improve the oxidative of flaxseed oil (FO) during storage. Compared with macro Tannic acid (TA), encapsulating TA in nano‐scale delivery system is more effective in delaying both the primary and secondary oxidation reactions of FO throughout the entire storage time. The results demonstrate that encapsulation of TA in fibrous mat could be potentially used to preserve oil. The formation of this nanofiber mat in this system is manufactured without using any synthetic chemicals. The plant‐derived components (GG and TA) are both recognized as safe by FDA and even edible. It can be directly added to crude oil systems during oilseed refining processing or used as coating material to fix on the surface of existing packaging bottle in order to prevent edible oil from oxidation, which would be beneficial in oil preservation and other related fields. This is the first paper using plant‐based nanoscale delivery system encapsulating natural antioxidant to improve the oxidative of flaxseed oil during storage. The plant‐derived components (guar gum and tannic acid) are both recognized as safe by FDA and even edible. The simple preparation process, effectiveness, and food‐grade functionality provide a novel alternative to synthetic antioxidants to protect edible oil from oxidation.

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Section: Methodssupporting

confidence: 88%

Improvement in the Oxidative Stability of Flaxseed Oil Using an Edible Guar Gum‐Tannic Acid Nanofibrous Mat

Yang

Jiang

et al. 2019

Euro J Lipid Sci & Tech

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“…GG has been extensively studied for its immense potential in the elds of biomedicine owing to its exceptional features. [6][7][8][9] Nevertheless, certain shortcomings associated with native GG such as uncontrolled rates of hydration, high swelling, thickening effect, instability upon storage and high susceptibility to microbial attack have called in for modication strategies. 10,11 Carboxymethylation of GG in particular has evolved to be an effectual approach wherein the aforementioned hindrances have been addressed quite fruitfully.…”

Section: Introductionmentioning

confidence: 99%

Non-thermal plasma assisted surface nano-textured carboxymethyl guar gum/chitosan hydrogels for biomedical applications

Dalei

Das

2019

RSC Adv.

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“…A remarkable change in physical properties was observed which depending upon chain length of carboxylic acid and substitution degree. It was demonstrated that the extent of reaction depends upon reactivity of acid chloride, which in turn increases with chain length of fatty acid [28,29]. The greater the DS value, the greater the organo-soluble capacity.…”

Section: Resultsmentioning

confidence: 99%

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

Iqbal¹,

Hussain²,

Bukhari³

et al. 2020

Pol. J. Environ. Stud.

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Guar esters of long-chain aliphatic carboxylic acids (fatty acid) were prepared and examined. Esterification was done in two steps, with the first goal to prepare acid chloride by refluxing acid with slight excess of thionyl chloride, and the product was confirmed by elemental analysis. Ten different types of fatty acid (C 5 -C 18 ) were used for derivatization. The reaction mechanism for synthesis of fatty acid ester of guar was studied in detail. Physical properties of the esters were examined as well. The degree of substitution was calculated by titration method and structure elucidation was done using Fourier transform infrared spectroscopy (FTIR), proton-nuclear magnetic resonance ( 1 H-NMR) and scanning electron microscopy (SEM) techniques.

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Guar gum and its composites as potential materials for diverse applications: A review

Cited by 348 publications

References 109 publications

Improvement in the Oxidative Stability of Flaxseed Oil Using an Edible Guar Gum‐Tannic Acid Nanofibrous Mat

Improvement in the Oxidative Stability of Flaxseed Oil Using an Edible Guar Gum‐Tannic Acid Nanofibrous Mat

Non-thermal plasma assisted surface nano-textured carboxymethyl guar gum/chitosan hydrogels for biomedical applications

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

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