Abstract
In order to reasonably use of the aristichthys nobilis scale resources, gelatin was extracted from the scales of aristichthys nobilis with the aid of ultrasonic method. The ultrasonic power, time, temperature and the ratio of material to solvent on extraction of gelatin from aristichthys nobilis scales were studied. The ultrasonic extraction conditions of gelatin from aristichthys nobilis scales were optimized by quadratic regression orthogonal test based on single factor experiments. The results showed that the optimum conditions were ultrasonic temperature of 72 °C, ultrasonic time of 121 min, ultrasonic power of 300 W, the ratio of solid of solvent 1:11 (g/mL), and the extraction rate of gelatin from aristichthys nobilis scale was 48.58% under optimal extraction conditions.
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