Natural antioxidants for radiation vulcanization of natural rubber latex
Natural antioxidants for radiation vulcanization of natural rubber latex
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DOI：
10.1016/s0141-3910(02)00024-1
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发表时间：
2002-01-01
影响因子：
5.9
通讯作者：
dela Rosa, AM
中科院分区：
文献类型：
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作者：
Abad, LV;Relleve, LS;dela Rosa, AM
研究了几种非水溶性氨基酸在辐射硫化天然胶乳（RVNRL）上的抗氧化性能。其中有胱氨酸、酪氨酸、天冬氨酸、苯丙氨酸和丙氨酸。结果表明，这些氨基酸与胱氨酸、丙氨酸和天冬酰胺均具有抗氧化作用，其中苯丙氨酸对RVNRL具有较强的抗衰老作用。这些氨基酸的组合提高了RVNRL的抗氧化性能。鸡毛角蛋白在RVNRL中的抗氧化性能也进行了测试。不同的角蛋白提取方法对RVNRL的衰老作用不同。亚硫酸氢钠减少角蛋白启动RVNRL的抗氧化活性。然而，碱性溶液提取角蛋白对RVNRL有促氧化作用。(C) 2002 Elsevier Science Ltd.版权所有。
The anti-oxidant properties of some non-water soluble amino acids were tested on radiation vulcanized natural rubber latex (RVNRL). Among these were cystine, tyrosine, asparagine phenyl alanine and alanine. The results indicate that all of these amino acids have anti-oxidant properties with cystine, alanine and asparagine, phenyl alanine exhibiting higher anti-aging properties on RVNRL. Combinations of these amino acids improved the antioxidant properties in RVNRL. Keratin from chicken feathers was also tested for its antioxidant properties in RVNRL. Different methods of extraction of keratin gave different aging effects on RVNRL. Reduction of keratin with sodium bisulfite initiated antioxidant activity in RVNRL. Extraction of keratin with alkaline solution however caused pro-oxidant properties in RVNRL. (C) 2002 Elsevier Science Ltd. All rights reserved.