食品科学 ›› 2009, Vol. 30 ›› Issue (14): 136-139.doi: 10.7506/spkx1002-6630-200914023

• 工艺技术 • 上一篇    下一篇

银杏花粉粗多糖脱色工艺研究

郝功元,吴彩娥* ,杨剑婷,贾韶千,徐文斌   

  1. 南京林业大学森林资源与环境学院
  • 收稿日期:2008-10-20 修回日期:2009-02-08 出版日期:2009-07-15 发布日期:2010-12-29
  • 通讯作者: 吴彩娥 E-mail:sxwucaie@163.com
  • 基金资助:

    南京林业大学引进高层次人才科研基金项目(2006-1)

Decolorization of Crude Polysaccharide from Ginkgo biloba Pollen

HAO Gong-yuan,WU Cai-e*,YANG Jian-ting,JIA Shao-qian,XU Wen-bin   

  1. (College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China)
  • Received:2008-10-20 Revised:2009-02-08 Online:2009-07-15 Published:2010-12-29
  • Contact: WU Cai-e*, E-mail:sxwucaie@163.com

摘要:

为优选银杏花粉粗多糖的脱色材料,以多糖保留率和脱色率为考察指标,通过比较聚酰胺、树脂、粉末活性炭和颗粒活性炭四种不同的脱色剂的脱色效果,选择一种较好的脱色剂进行单因素和正交试验。结果表明:颗粒活性炭优于其他3 种脱色剂,通过正交试验法研究脱色条件,颗粒活性炭脱色最佳工艺参数为脱色时间4h、脱色温度50℃、脱色剂用量0.15g/ml。

关键词: 银杏花粉, 脱色, 颗粒活性炭

Abstract:

Polyamides, D101 macroporous resin, powdered activated carbon and granular activated carbon were separately adopted to decolorize the crude polysaccharide from Ginkgo biloba pollen. Granular activated carbon had the best decolorization efficiency in terms of weighed score for retention rate of polysaccharide and decolorization rate. One-factor-at-a-time method was adopted to investigate the effects of three crucial factors (namely, decolorization duration, temperature and decolorant quantity) on decolorization of the crude polysaccharide. Subsequently, the three factors were optimized using orthogonal array design. The optimal decolorization duration, temperature and decolorant quantity were 50 ℃, 4 h and 0.15 g/ml, respectively. Under these conditions, the decolorization rate was over 72.84% and 88.19% of polysaccharide was recovered.

Key words: Ginkgo biloba pollen, decolorization, granular activated carbon

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