葡萄皮渣膳食纤维酶法改性工艺研究

Acta Agriculturae Shanghai(2017)

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Abstract
以新疆酿酒葡萄皮渣副产物膳食纤维为主要研究对象,采用纤维素酶法对其进行改性处理,从而提高葡萄皮可溶性膳食纤维(Grape Soluble Dietary Fiber,GSDF)得率,并对其功能性质进行了初步测定.结果表明:液料比11:1 (mL/g),酶解温度52℃,酶解时间62 min,酶添加量1.4 mg/mL时为改性技术最佳工艺条件,得率为33.68%;改性后的持水力、持油力、膨胀力和阳离子交换能力4项功能性质指标均显著提高.
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