Abstract
Natural dyes are widely available and mainly extracted from natural plants with green, safe, and sustainable characteristics. This study used Cinnamomum camphora fruit peel as the raw material under the premise of minimizing chemical reagents and employed the microwave-extraction method to extract the dyes from C. camphora fruit peel. The dye extraction conditions were optimized using response surface software via the Box-Behnken model to formulate a response surface test protocol. The results showed that optimizing the experimental conditions by the response surface method was reliable. The optimal extraction condition was found to be material-liquid ratio 1:20 (g: mL), microwave time 90 s, and microwave power 420 W. It is of practical application value to improve the extraction quantity of C. camphora fruit dye. At the same time, the infrared spectrum and HPLC-MS analysis of Cinnamomum camphora fruit dye were analyzed, and the stability of the dye was tested.
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