4.Journals Published in Sri Lanka
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Item Manufacture of low protein natural rubber (LPNR) by pineapple juice (or Bromelain) treatment of Hevea latex(Rubber Research Institute of Sri Lanka. Agalawatta, 1995) Yapa, P.A.J.Item The preparation and properties of low nitrogen constant viscosity rubber(Rubber Research Institute. Agalawatta, 1975) Yapa, P.A.J.Item Some studies on cyclization of bromelain treated rubber(Rubber Research Institute. Agalawatta, 1980) Yapa, P.A.J.; Lionel, W.A.Item Some aspects of biochemical changes due to maturation of acid and papain treated Hevea latex(Rubber Research Institute. Agalawatta, 1998) Dissanayake, W.; Yapa, P.A.J.Biochemical changes that occur due to maturation of acid and papain treated Hevea latex were investigated. An increase in bacterial population in latex of both acid and papain treated, was significantly higher than that in acid treated latex. Higher microbial activity correlated with decreases in carbohydrate and amino acid levels in serum. Maturation of papain treated latex, enhances protein digestion and reduction in ash content without any adverse effect on major raw rubber properties.