Sophorolipids (SLs) are surface active glycolipids produced by nonpathogenic yeasts, and a combination of SLs with 1,2,3,4-butanetetracarboxyic acid (BTCA) was used as a new durable antimicrobial treatment method for cotton fabrics. The factors influencing the antibacterial property of the fabrics in the finishing process, such as the amount of SLs, treatment temperature, curing time, amount of BTCA, and sodium hypophosphite (SHP) were investigated. An optimized procedure for treating fabrics was two dips and two nips with a wet pickup of 90% in an aqueous solution containing 20 g/L of SHP, 40 g/L of SLs and 90 g/L of BTCA, then drying at 100°C for 2 min and curing at 120°C for 2 min. As a result, 99% of the S. aureus in a concentration of 3.0×10⁴ CFU/mL were killed by the treated fabrics in 1 h contact according to ASTM Standards E2149-10, and the functions are durable against washing. The mechanism of BTCA crosslinking lactonic sophorolipid onto cellulose was investigated by using computational chemistry and experimental methods. As a non-irritant surfactant, sophorolipids proved to be a potential natural antimicrobial agent for textiles or medical products.

中文翻译：

---

槐糖脂与1,2,3,4-丁烷四羧酸结合处理的棉织物的抗菌整理

槐糖脂（SL）是由非致病性酵母产生的表面活性糖脂，并且SL与1,2,3,4-丁烷四甲酸（BTCA）的组合被用作棉织物的一种新型耐用抗菌处理方法。研究了整理过程中影响织物抗菌性能的因素，例如SL的数量，处理温度，固化时间，BTCA的量和次磷酸钠（SHP）。处理织物的最佳步骤是两次浸涂和两次压合，然后在含20 g / L SHP，40 g / L SL和90 g / L BTCA的水溶液中湿吸收90％，然后在100°C下干燥固化2分钟，然后在120°C固化2分钟。结果，99.％的金黄色葡萄球菌的浓度为3.0×10 ⁴ 根据ASTM标准E2149-10，经处理的织物在接触1小时后杀死CFU / mL，其功能耐洗。利用计算化学和实验方法研究了BTCA将乳品槐糖脂交联到纤维素上的机理。作为一种无刺激性的表面活性剂，槐糖脂被证明是用于纺织品或医疗产品的潜在天然抗菌剂。