02321nas a2200241   4500008004100000245009000041210006900131260000800200300001700208490000700225520145900232100003701691700002201728700003101750700002301781700002501804700002501829700002701854700002501881700003601906700002801942856010901970       2019                        eng d00aStudies on the use of sodium polyacrylate (SPA) for low-salt animal skin preservation0 aStudies on the use of sodium polyacrylate SPA for lowsalt animal  cSEP  a 27100-271110 v263 a<p>Salt-based preservation is practiced for decades in the leather industry because of its versatility, cost-effectiveness, and availability. The salt removed from the soaking process causes significant pollution including organic and elevated total dissolved solids (TDS). Hence, a low-salt skin preservation method using commercial sodium polyacrylate with a reduced quantity of sodium chloride aiming to retain leather properties and pollution reduction was the principal focus of the study. Commercial sodium polyacrylate initially characterized for water absorption capacity along with structural and functional properties is confirmed by NMR and IR spectroscopic techniques. In preliminary experiments, the process parameters attained optimized conditions of sodium polyacrylate (SPA) quantity (5%), a minimal amount of salt (15%), and contact time (4 h) required for skin preservation. Besides, reusability studies after SPA recovery (95%) were applied to skins with an optimized quantity of SPA and salt subsequently stored for 15 days along with control (40% salt). The results revealed that SPA with low salt aided an adequate curing efficiency with a substantial reduction (&gt; 65%) of TDS and comparable physical and organoleptic properties on par with the conventional method. Overall, SPA supported low-salt skin preservation reduces pollutant load (TDS) caused due to using of 40% sodium chloride in the conventional curing process.</p>
1 aBalasubramanian, Venkatakrishnan1 aVelappan, Brindha1 aVijayan, Sandhya, Kurvilla1 aJabamani, Hepzibah1 aNagarajan, Vedaraman1 aVictor, John, Sundar1 aRanganath, Suresha, P.1 aBadiger, Manohar, V.1 aChinnaraj, Velappan, kandukalpa1 aChellappa, Muralidharan  uhttps://library.ncl.res.in/content/studies-use-sodium-polyacrylate-spa-low-salt-animal-skin-preservation