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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (3): 209-214.doi: 10.11924/j.issn.1000-6850.2012-2243

• 食品 营养 检测 安全 • 上一篇    下一篇

葵花子皮中水溶性膳食纤维初步研究

朱洪梅 于燕 孟娜   

  • 收稿日期:2012-06-18 修回日期:2012-08-15 出版日期:2013-01-25 发布日期:2013-01-25
  • 基金资助:
    大学生创新性项目 “基于黑葵花种皮细胞结构的色素提取方法的建立及其抗氧化性研究” (SD2011CXSY-08)。

A Preliminary Study on Water-soluble Dietary Fiber of Melon Seed Skins

  • Received:2012-06-18 Revised:2012-08-15 Online:2013-01-25 Published:2013-01-25

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摘要： 为了提高葵花子皮中水溶性膳食纤维得率，在单因素实验基础上，通过响应面法对水溶性膳食纤维提取工艺进行优化研究。结果表明：提取瓜子皮中水溶性膳食纤维的最佳工艺参数为NaOH的质量分数为7.83%、提取时间为69.46 min、提取温度为42.10℃、液料比为40 mL/g；在最优工艺条件下水溶性膳食纤维的得率可达31.1112%，同时经测定得知葵花子皮膳食纤维具有良好的持水性和溶胀性：持水性为7.293 g/g，溶胀性为3.997 mL/g。因此瓜子皮可以作为提取水溶性膳食纤维的良好来源。

关键词: 磷酸酶, 磷酸酶

Abstract: This paper studies extracting water-soluble dietary fiber (SDF) from hulls in order to improve SDF yield. Based on single-factor experiments, response surface analysis method was used to optimize extraction technology of water-soluble dietary fiber (SDF) in sunflower seed shell. The results showed that the optimum process parameters of soluble dietary fiber in sunflower seed shell were the following: NaOH mass fraction 7.83%, the extraction time 69.46 min, extraction temperature 42.10℃, ratio of liquid to solid 40 mL/g, with which yield of water soluble dietary fiber was up to 31.1112%. In addition, the water retention and swelling of SDF were also measured. The results indicated that soluble dietary fiber from sunflower seed shell had good water retention and swelling: water holding capacity 7.293 g/g, 3.997 mL/g swelling. Therefore, sunflower seed shell is good source of soluble dietary fiber.