直接皂化法制备叶绿素铜钠盐

以蚕沙为原料,采用直接皂化法制备叶绿素铜钠盐。结果表明,最优工艺参数为：10 g干蚕沙粉在pH≈12的体系中,80℃下超声120 min;再于pH 2~3的体系中,65℃下酸化30 min,加入6 mL 10%CuSO4溶液,置铜时间90 min,最后用10%NaOH-CH3CH2OH调节溶液使叶绿素铜酸成盐析出,叶绿素铜钠盐的得率大于传统制备法,而且少一道工序,降低了成本。

Preparation of sodium copper chlorophyllin by direct saponification

Sodium copper chlorophyllin was prepared through the reaction of direct saponification,using silkworm faeces as raw material. The result showed that the optimum process parameters were as follows： Firstly,ultrasound 10 g dried silkworm powder for 120 min at 80 ℃ in the system with pH ≈ 12; Secondly,acidification for 30 min at 65 ℃ in the system with pH 2 ~ 3,and after replace sodium with 6 mL 10% CuSO4solution for 90 min; Finally,the sodium copper chlorophyllin was obtained by neutralizing with 10% NaOH-ethanol. The yield of sodium copper chlorophyllin was superior to the traditional one,and less than a process,and reduce costs.