Morphological, physico-chemical and structural characterization of gum kondagogu (Cochlospermum gossypium): A tree gum from India

Vinod, V.T.P.; Sashidhar, R.B.; Suresh, K.; Rao, B. Rama; Saradhi, U.V.R. Vijaya; Rao, T. Prabhakar

doi:10.1016/j.foodhyd.2007.05.006

Cited by 154 publications

(122 citation statements)

References 65 publications

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“…The elemental analysis study showed that the isolated mucilage had certain percentage of carbon, nitrogen, sulphur and hydrogen while toxic heavy metal like arsenic, lead, cadmium and mercury were absent. The present study indicated similar compositions of element as reported earlier for gum Kondagogu by Vinod et al, (2008). The presence of nitrogen may indicate the presence of protein in the sample.…”

Section: Elemental Composition (Chns) and Heavy Metal Analysis Of Mucsupporting

confidence: 91%

“…This is a component of the power spectrum resulting from the oscillating particles. ZP was calculated for mucilage from the MPS signal using formula (Vinod et al, 2008) in water and pH dependence of the zeta potential was investigated with the background electrolyte of 0.1 N NaCl. ζ = μη/ε where ζ = zeta potential, μ = mobility, η = viscosity, ε = dielectric constant, for water at 25 °C, Zeta potential (mV) ~ 12.8 x Mobility (μ/sec/volt/cm).…”

Section: Electrokinetic Studies; Zeta Potentialmentioning

confidence: 99%

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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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Section: Elemental Composition (Chns) and Heavy Metal Analysis Of Mucsupporting

confidence: 91%

Section: Electrokinetic Studies; Zeta Potentialmentioning

confidence: 99%

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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“…The important tree exudate gums available on the market are gum arabic (GA), gum karaya (GK), gum tragacanth (GT), kondagogu gum (KG), and gum ghatti (GG). Extensive research has been carried out on various aspects of these tree gum polysaccharides, which includes their availability, molecular weight distribution, chemical structures, and food & non-food applications [77][78][79][80]. None of the three gums are produced in developed countries.…”

Section: Tree Gums -An Overviewmentioning

confidence: 99%

“…Even though gum karaya, also known as Indian tragacanth, and KG are classified in the same group, there are considerable differences in their physical and chemical properties [101,102]. Extensive research has been carried out on KG (Cochlospermum gossypium), a gum extracted from kondagogu tree, which grows in India, including its morphological, physical and chemical, structural, rheological, pharmaceutical emulsifying properties and its toxicological evaluation as a food additive [79,80,[102][103][104][105][106][107]. Furthermore, this gum can also be used as a biosorbent for the removal of toxic metal contaminants from aqueous environments and also as an environmental friendly material for the stabilization and a reducing agent for the synthesis of metal/metal oxide nanoparticles [108][109][110][111][112].…”

Section: Tree Gums -An Overviewmentioning

confidence: 99%

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

Padil

Černík

2016

Ecological Chemistry and Engineering S

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Abstract:The recent advances and potential applications of nanoparticles and nanofibres for energy, water, food, biotechnology, the environment, and medicine have immensely conversed. The present review describes a 'green' method for the synthesis and stabilization of nanoparticles and 'green electrospinning' both using tree gums (arabic, tragacanth, karaya and kondagogu). Furthermore, this review focuses on the impending applications of both gum stabilized nanoparticles and functionalized membranes in remediation of toxic metals, radioactive effluents, and the adsorptive removal of nanoparticulates from aqueous environments as well as from industrial effluents. Besides, the antibacterial properties of gum derivatives, gum stabilized nanoparticles, and functionalized electrospun nanofibrous membranes will also be highlighted. The functionalities of nanofibrous membranes that can be enhanced by various plasma treatments (oxygen and methane, respectively) will also be emphasized.

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“…It is a broadly utilized alteration technique in light of its simplicity of handling, bring down cost of chemicals and versatility of the product obtained. Many natural gums such as Cassia tora gum, gellan, guar gum, and gum karaya were investigated using the carboxymethylation process [34][35][36][37].…”

mentioning

confidence: 99%

Microwave-assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities

Seku¹,

et al. 2018

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Eco-friendly silver nanoparticles (AgNPs) were synthesized using a carboxymethylated gum kondagogu (CMGK) as capping and reducing agent by microwave irradiation method. Synthesized AgNPs were analyzed by TEM, showed spherical in shape with an average particle size distribution of 9 ± 2 nm. XRD results showed that the cubic-structured AgNPs with crystallite size of 8.6 nm. The synthesized CMGK capped AgNPs was tested for catalytic activity using hexacyanoferrate(III) in the presence of NaBH 4 and the impacts of catalyst dose and temperature were examined. The synthesized AgNPs demonstrated a huge antibacterial action on both Gram-positive and negative groups of microorganisms with inhibition zone of 23, 25 and 28 mm, respectively, for Bacillus subtilis, Bacillus cereus and Escherichia coli, they showed moderate antibacterial action (zone of inhibition 15 mm) with Pseudomonas aeruginosa. In addition, the ability of the AgNPs scavenging activity with different concentrations was studied using the DPPH radical scavenging.

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Morphological, physico-chemical and structural characterization of gum kondagogu (Cochlospermum gossypium): A tree gum from India

Cited by 154 publications

References 65 publications

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

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

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

Microwave-assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities

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