Genetic Engineering and Biotechnology Research Institute, Minuofiya University, El-Sadat City, Egypt.
Int J Biol Macromol. 2011 Jun 1;48(5):736-41. doi: 10.1016/j.ijbiomac.2011.02.022. Epub 2011 Mar 5.
Acetic acid soluble material (AcSM) is a chitosan-rich fraction isolated from the fungal cell wall materials. The final step in the traditional production of fungal chitosan is the separation of chitosan from the cell wall AcSM via raising the pH to 9-10 followed by centrifugation. This step results in further undesirable economic and environmental effects. The goal of this paper is to avoid that by investigating the antimicrobial effect of the whole AcSM from Mucor rouxii DSM-1191 cell wall and its application on cotton fabrics. The treated fabrics were characterized through monitoring the textile physical properties and for the antibacterial activity against Escherichia coli and Micrococcus luteus. Results showed that Mucor rouxii DSM-1191 has excellent potentials to be used for cell wall AcSM production on industrial scale with a maximum content of 40% in dry mycelia. The obtained results indicated that the physical properties of the treated fabrics, as well as the antibacterial activity, were improved after treatment with fungal AcSM.
醋酸溶解物（AcSM）是从真菌细胞壁材料中分离出来的富含壳聚糖的部分。真菌壳聚糖传统生产的最后一步是通过将 pH 值提高到 9-10 来分离壳聚糖和细胞壁 AcSM，然后进行离心。这一步骤会导致进一步的不良经济和环境影响。本文的目的是通过研究毛霉 DSM-1191 细胞壁全 AcSM 的抗菌作用及其在棉织物上的应用来避免这种情况。通过监测纺织品的物理性能以及对大肠杆菌和藤黄微球菌的抗菌活性来对处理过的织物进行表征。结果表明，毛霉 DSM-1191 具有很大的潜力，可用于工业规模的细胞壁 AcSM 生产，在干燥菌丝中最高含量可达 40%。结果表明，用真菌 AcSM 处理后，处理过的织物的物理性能以及抗菌活性都得到了改善。
