College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China.
Molecules. 2022 Nov 3;27(21):7549. doi: 10.3390/molecules27217549.
In order to reduce the oxidative degradation of citral, our research group modified citral with the natural antioxidant from tea polyphenols and applied it to bamboo processing to enhance the anti-mold effect of bamboo, but its application to the bamboo treatment process and the anti-mold effect is still not clear. For this reason, in this paper, the tea polyphenol-modified citral anti-mildew treatment of bamboo as well as the anti-mildew properties of bamboo were explored using the orthogonal testing method and a UV-vis spectrophotometer. The results showed that when the concentration of tea polyphenol-modified citral reached 175 mg mL and above, the efficacy of the anti-mildew treated bamboo against common molds reached 100%; the improved anti-mildew treatment process parameters for bamboo were as follows: impregnation pressure 0.6 MPa, impregnation time 150 min, and tea polyphenol-modified citral concentration 200 mg mL. Following the tea polyphenol-modified citral anti-mildew treatment of bamboo, not only did it improve the anti-mildew properties of the bamboo materials, but it also added a fresh lemon fragrance without altering the original colour, microstructure, and chemical properties of the bamboo materials.
为了降低柠檬醛的氧化降解，我们的研究小组用来自茶多酚的天然抗氧化剂对柠檬醛进行了修饰，并将其应用于竹材加工中，以增强竹材的防霉效果，但它在竹材处理过程和防霉效果中的应用仍不清楚。为此，本文采用正交试验法和紫外可见分光光度计，探讨了茶多酚修饰柠檬醛对竹材的防霉处理以及竹材的防霉性能。结果表明，当茶多酚修饰柠檬醛的浓度达到 175mg/mL 及以上时，防霉处理竹材对常见霉菌的防霉效果达到 100%；改进的竹材防霉处理工艺参数为：浸渍压力 0.6MPa、浸渍时间 150min、茶多酚修饰柠檬醛浓度 200mg/mL。经过茶多酚修饰柠檬醛防霉处理后，不仅提高了竹材的防霉性能，而且还添加了新鲜柠檬的香气，没有改变竹材的原有颜色、微观结构和化学性质。
