Morphology and metal binding characteristics of a natural polymer-kondagogu (Cochlospermum gossypium) gum.
作者： V. Vinod , R. Sashidhar , Miroslav Černík
DOI: 10.3390/MOLECULES18078264
关键词: Nanogel 、 Adsorption 、 Organic chemistry 、 Metal ions in aqueous solution 、 Cochlospermum 、 Metal 、 Nuclear chemistry 、 Biosorption 、 Chemistry 、 Bioremediation 、 Biopolymer
摘要: Kondagogu (Cochlospermum gossypium) gum (KG), a natural tree exudate, was investigated for its morphological, adsorption and metal interaction behavior with various toxic heavy metals (Pb, Cd, Ni, Cr Fe). SEM, AFM TEM techniques were used to study the morphological changes occurring after onto biopolymer structure. The degree of biosorption on KG surfaces assessed by small-angle X-ray scattering analysis. EDXA spectrum revealed that ion-exchange mechanism plays major role in binding process between ions. higher electron density observed KG-Cd complex suggests Cd is strongly bound compared other metals. This work provides potential platform developing hydrocolloid-based nanogel bioremediation environmental contaminants.
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K.D. Trimukhe, A.J. Varma, Complexation of heavy metals by crosslinked chitin and its deacetylated derivatives Carbohydrate Polymers. ,vol. 71, pp. 66- 73 ,(2008) , 10.1016/J.CARBPOL.2007.05.016
V.T.P. Vinod, R.B. Sashidhar, Solution and conformational properties of gum kondagogu (Cochlospermum gossypium) ― A natural product with immense potential as a food additive Food Chemistry. ,vol. 116, pp. 686- 692 ,(2009) , 10.1016/J.FOODCHEM.2009.03.009
B Janaki, R.B Sashidhar, Physico-chemical analysis of gum kondagogu (Cochlospermum gossypium): a potential food additive Food Chemistry. ,vol. 61, pp. 231- 236 ,(1998) , 10.1016/S0308-8146(97)00089-7
Vivek Utgikar, Bor-Yann Chen, Henry H. Tabak, Dolloff F. Bishop, Rakesh Govind, Treatment of acid mine drainage. I : Equilibrium biosorption of zinc and copper on non-viable activated sludge International Biodeterioration & Biodegradation. ,vol. 46, pp. 19- 28 ,(2000) , 10.1016/S0964-8305(00)00053-6
Ganga Modi Naidu Vegi, Ramakrishna Sistla, Palaniappan Srinivasan, Sashidhar Rao Beedu, Roop K Khar, Prakash V Diwan, None, Emulsifying properties of gum kondagogu (Cochlospermum gossypium), a natural biopolymer Journal of the Science of Food and Agriculture. ,vol. 89, pp. 1271- 1276 ,(2009) , 10.1002/JSFA.3568
V.T.P. Vinod, R.B. Sashidhar, K.I. Suresh, B. Rama Rao, U.V.R. Vijaya Saradhi, T. Prabhakar Rao, Morphological, physico-chemical and structural characterization of gum kondagogu (Cochlospermum gossypium) : A tree gum from India Food Hydrocolloids. ,vol. 22, pp. 899- 915 ,(2008) , 10.1016/J.FOODHYD.2007.05.006
Dao Zhou, Lina Zhang, Shenglian Guo, Mechanisms of lead biosorption on cellulose/chitin beads Water Research. ,vol. 39, pp. 3755- 3762 ,(2005) , 10.1016/J.WATRES.2005.06.033
V. T. P. Vinod, R. B. Sashidhar, V. U. M. Sarma, U. V. R. Vijaya Saradhi, Compositional analysis and rheological properties of gum kondagogu (Cochlospermum gossypium): a tree gum from India. Journal of Agricultural and Food Chemistry. ,vol. 56, pp. 2199- 2207 ,(2008) , 10.1021/JF072766P
V.T.P. Vinod, R.B. Sashidhar, N. Sivaprasad, V.U.M. Sarma, N. Satyanarayana, R. Kumaresan, T. Nagaeswara Rao, P. Raviprasad, Bioremediation of mercury (II) from aqueous solution by gum karaya (Sterculia urens): A natural hydrocolloid Desalination. ,vol. 272, pp. 270- 277 ,(2011) , 10.1016/J.DESAL.2011.01.027
VGM Naidu, K Madhusudhana, RB Sashidhar, S Ramakrishna, Roop K Khar, Farhan J Ahmed, Prakash V Diwan, None, Polyelectrolyte complexes of gum kondagogu and chitosan, as diclofenac carriers Carbohydrate Polymers. ,vol. 76, pp. 464- 471 ,(2009) , 10.1016/J.CARBPOL.2008.11.010