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Effect of Purified Trichoderma reesei Cellulases on the Supramolecular Structure of Cotton Cellulose

机译:纯化的里氏木霉纤维素酶对棉纤维素超分子结构的影响

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摘要

Commercial cellulases may contain mixtures of different cellulase components, and properties of cotton fabrics treated with cellulases vary with the nature of these mixtures. This study reports the effect of treatments with cellulase monocomponents on the molecular and supramolecular structures of cotton cellulose. Desized, scoured, and bleached printcloth fabrics prepared from ring spun or rotor spun Deltapine cotton yarns are treated with monocomponent cellulases―endoglucanase Ⅰ and Ⅱ and cellobiohydro-lase Ⅰ and Ⅱ from Trichoderma reesei―in an acetate buffer in stainless steel canisters in the presence of stainless steel ball bearings. The effects of the treatments are reported for fabric weight loss, reducing sugar formation, fabric breaking strength and tearing strength, copper number, water of imbibition, cellulose microstructure as revealed by hydrogen bonding patterns, and fiber pore size distribution.
机译:商业纤维素酶可包含不同纤维素酶成分的混合物,并且用纤维素酶处理的棉织物的性能随这些混合物的性质而变化。这项研究报告了纤维素酶单组分处理对棉纤维素分子和超分子结构的影响。在存在不锈钢罐的情况下,在醋酸盐缓冲液中,对由环锭纺或转杯纺的Deltapine棉纱制成的经脱浆,擦洗和漂白的印花布织物,用单组分纤维素酶(内切葡聚糖酶Ⅰ和Ⅱ和里氏木霉的纤维二糖水解酶Ⅰ和Ⅱ)处理。不锈钢球轴承。据报道这些处理的效果包括织物的重量减轻,减少糖的形成,织物的断裂强度和撕裂强度,铜数,吸水,氢键模式揭示的纤维素微结构和纤维孔径分布。

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