Abstract Recently, there is a growing trend towards the fabrication of bioactive materials by using natural extracts, which can achieve diverse functionalities and environmental benefits simultaneously. This study presents a facile approach towards the preparation of bioactive and UV protective silk materials using the extract from red radish (an edible root vegetable). The adsorption mechanism of red radish extract on silk was studied. The results showed that red radish extract displayed higher exhaustion rate at lower pH. The equilibrium adsorption study indicated that the Langmuir and Freundlich isotherms were suitable to describe the adsorption behavior of red radish extract on silk, revealing that the ion–ion interactions, hydrogen bonding, and van der Waals forces play major roles in the adsorption process. The silk treated with red radish extract over 5% owf, exhibited excellent antioxidant activity, high antibacterial activities against Escherichia coli and Staphylococcus aureus , and very good UV protective property. The functionalities of the treated silk showed a gradual decline in the continuous washing process due to the release of red radish extract during washing. In general, the results demonstrate that the red radish treated silk materials have a promising future for the preparation of healthy and hygiene-related textiles.

中文翻译：

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使用红萝卜（Raphanus sativus L.）提取物通过吸附技术简便、绿色制备生物活性和紫外线防护丝材料

摘要 近年来，利用天然提取物制造生物活性材料的趋势越来越大，可以同时实现多种功能和环境效益。本研究提出了一种使用红萝卜（一种食用根茎类蔬菜）提取物制备生物活性和紫外线防护丝材料的简便方法。研究了红萝卜提取物对蚕丝的吸附机理。结果表明，红萝卜提取物在较低的 pH 值下表现出较高的耗竭率。平衡吸附研究表明，Langmuir 和 Freundlich 等温线适合描述红萝卜提取物在丝绸上的吸附行为，表明离子-离子相互作用、氢键和范德华力在吸附过程中起主要作用。用超过5%owf的红萝卜提取物处理的蚕丝表现出优异的抗氧化活性、对大肠杆菌和金黄色葡萄球菌的高抗菌活性，以及​​非常好的紫外线防护性能。由于洗涤过程中红萝卜提取物的释放，处理过的蚕丝的功能在连续洗涤过程中表现出逐渐下降。总的来说，结果表明，经过红萝卜处理的丝绸材料在制备健康和卫生相关的纺织品方面具有广阔的前景。由于洗涤过程中红萝卜提取物的释放，处理过的蚕丝的功能在连续洗涤过程中表现出逐渐下降。总的来说，结果表明，经过红萝卜处理的丝绸材料在制备健康和卫生相关的纺织品方面具有广阔的前景。由于洗涤过程中红萝卜提取物的释放，处理过的蚕丝的功能在连续洗涤过程中表现出逐渐下降。总的来说，结果表明，经过红萝卜处理的丝绸材料在制备健康和卫生相关的纺织品方面具有广阔的前景。