响应面法优化玫瑰花渣不溶性膳食纤维双氧水脱色工艺Optimization of Hydrogen Peroxide Decolorization Process of Insoluble Dietary Fiber from Rose Pomace by Reponse Surface Method
陈创业,安比芳,冯作山,乔桂芳,刘天志,赵永铭,陶永霞
摘要(Abstract):
通过酶-化学法提取玫瑰花渣中的膳食纤维,利用双氧水对玫瑰花渣中的不溶性膳食纤维(insoluble dietary fiber, IDF)进行脱色。对双氧水浓度、脱色温度、pH值、脱色时间4个因素进行单因素试验,然后进行响应面试验。响应面试验及验证试验结果表明,IDF的最佳脱色条件为双氧水浓度(质量分数)11%、pH值10、脱色时间80 min、脱色温度71℃,在此条件下色差值ΔE为51.37。产品颜色为黄绿色,无任何异味,呈细小颗粒状。脱色后IDF性质得到一定程度的提高,持水力为6.857 4 g/g,持油力为1.837 9 g/g,膨胀力为3.17 mL/g。
关键词(KeyWords): 玫瑰花渣;不溶性膳食纤维(IDF);脱色;双氧水
基金项目(Foundation): 新疆维吾尔自治区重点研发专项项目(2522HXKT1)
作者(Author): 陈创业,安比芳,冯作山,乔桂芳,刘天志,赵永铭,陶永霞
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