食品科学 ›› 2012, Vol. 33 ›› Issue (24): 21-25.doi: 10.7506/spkx1002-6630-201224005

• 工艺技术 • 上一篇    下一篇

杨梅渣红色素酸水提取和精制工艺

李帅,蒋建泉,胡癸峰,张应烙   

  1. 浙江师范大学化学与生命科学学院,浙江金华 321004
  • 收稿日期:2011-09-14 修回日期:2012-11-21 出版日期:2012-12-25 发布日期:2012-12-12
  • 通讯作者: 张应烙 E-mail:ylzhang@zjnu.cn
  • 基金资助:

    浙江省公益性技术应用研究计划项目;浙江省自然科学基金;国家自然科学基金青年基金

Acidic Extraction and Refining of Red Pigment from Myrica rubra Pomace

LI Shuai,JIANG Jian-quan,HU Gui-feng,ZHANG Ying-lao   

  1. College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
  • Received:2011-09-14 Revised:2012-11-21 Online:2012-12-25 Published:2012-12-12

摘要:

以新鲜杨梅渣为原料,利用正交试验法确定酸水提取杨梅渣红色素最佳工艺条件为料液比1:12(g/mL)、提取温度60℃、提提时间4h、pH1.5盐酸。采用离子交换树脂法对色素进行精制,在供试的5种树脂中D002的精制效果最好;通过静态吸附、解吸实验以及动态吸附实验,确定D002离子交换树脂精制杨梅渣红色素的工艺条件为杨梅渣红色素吸光度0.5~1、色素pH2~3、25℃左右、吸附时间1.5h、上样流速3BV/h。

关键词: 杨梅渣, 红色素, 离子交换树脂, 提取工艺, 精制

Abstract:

An orthogonal array design was used to optimize conditions for the acidic extraction of red pigment from Myrica rubra pomace and optimum conditions for refi ning the crude pigment extract by ion exchange resin adsorption were studied.The optimum conditions for extracting red pigment from Myrica rubra pomace were found to be extraction at 60 ℃ for 4 h with acidic water at pH 1.5. D002 ion exchange resin showed the best refi ning effi ciency for the crude pigment extract among 5 types of ion exchange resin investigated. Static adsorption and desorption and dynamic adsorption experiments were carried out to determine the optimum refi ning conditions as follows: sample concentration adjustment to an absorbance value (at 509.5 nm) varying from 0.5 to 1, pH adjustment to a value between 2 and 3, adsorption at around 25 ℃ for 1.5 h,and sample loading at a fl ow rate of 3 BV/h.

Key words: Myrica rubra pomace, red pigment, ion exchange resin, extraction process, refining

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