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发明公开
CN105419370A 一种基于火龙果皮的可食性包装膜及其制备方法 有权

一种基于火龙果皮的可食性包装膜及其制备方法
摘要：
本发明提供了一种基于火龙果皮的可食性包装膜的制备方法，其特征在于，所述方法包括如下步骤：1）将火龙果皮洗净并切块；2）进行烫漂处理；3）加入水，进行打浆处理，得到火龙果皮浆料；步骤2）所得物与水的质量比为15～45:100；4）向步骤3）所得火龙果皮浆料加入增稠剂和增塑剂；增稠剂与火龙果皮浆料的质量比为0～0.4:100，增塑剂与火龙果皮浆料的质量比为0～0.3:100；所述增稠剂为海藻酸钠或羧甲基纤维素钠，所述增塑剂为甘油或山梨醇；5）进行均质处理，均质处理速率为15000～20000 r/min，处理时间为5～8min；然后进行脱气处理并静置，得到成型浆料；6）进行流延、干燥之后，然后进行揭膜，即得。本发明还提供了由上述方法制备得到的包装膜。
摘要（英）：

The invention provides a preparation method for a pitaya peel-based edible packaging film. The preparation method is characterized by comprising the following steps: (1) washing and stripping and slicing pitaya peels; (2) performing blanching treatment; (3) adding water and pulping to obtain pitaya peel pulp, wherein the mass ratio of matter obtained in the step (2) to the water is (15 to 45):100; (4) adding a thickening agent and a plasticizer into the pitaya peel pulp, wherein the mass ratio of the thickening agent to the pitaya peel pulp is (0 to 0.4):100, and the mass ratio of the plasticizer to the pitaya peel pulp is (0 to 0.3):100; the thickening agent is sodium alginate or sodium carboxymethylcellulose, and the plasticizer is glycerinum or sorbitol; (5) performing homogenization treatment at a treatment rate of 15000 to 20000 r/min for 5 to 8min; then, performing degassing treatment and standing to obtain shaped pulp; (6) casting and drying, and then performing film uncovering to obtain the pitaya peel-based edible packaging film. The invention also provides the packaging film prepared by the preparation method.

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