Preparation and process parameter optimization of instant edible films

doi:10.19491/j.issn.1001-9278.2025.08.006

Abstract

Abstract:

This study developed an instant edible film using carboxymethyl cellulose sodium （CMC）， high⁃amylose maize starch （HAMS）， and soluble starch （SS） as the matrix， with glycerol （Gl） as a plasticizer. The material ratios were first optimized based on dissolution time， followed by film preparation via twin⁃screw extrusion， calendering， and automated packaging. Key process parameters， including extrusion temperature， rolling temperature， and heat⁃sealing conditions， were systematically evaluated for their effects on film properties. The optimal formulation （0.50 g HAMS， 0.50 g SS， 1.25 g Gl， and 4.00 g CMC） achieved the shortest dissolution time （18.86 s）. Film properties were maximized at an extrusion temperature of 70 ℃ and a rolling temperature of 100 ℃. Furthermore， heat⁃sealing at 110°C for 6 s yielded the highest sealing strength （8.61±0.52） N/（15 mm）.

Key words: edible film, instant, screw extrusion, rolling, heat sealing

CLC Number:

TQ320.7

FU Fengmei, JIN Yi, WEI Jiayu, QIU Tong, LUO Qingying, LIU Yaowen. Preparation and process parameter optimization of instant edible films[J]. China Plastics, 2025, 39(8): 34-40.

Figures/Tables 9

References 27

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水平	因素
水平	A（HAMS）/g	B （SS）/g	C（GI）/g	D（CMC）/g
1	0.25	0.25	0.75	4.00
2	0.50	0.50	1.00	4.50
3	0.75	0.75	1.25	5.00

水平	因素
水平	A（HAMS）/g	B （SS）/g	C（GI）/g	D（CMC）/g
1	0.25	0.25	0.75	4.00
2	0.50	0.50	1.00	4.50
3	0.75	0.75	1.25	5.00

	A（HACS）/g	B（SS）/g	C（GI）/g	D（CMC）/g	溶解时间/s
1	1	1	1	1	26.87
2	1	2	2	2	24.54
3	1	3	3	3	28.31
4	2	1	2	3	31.51
5	2	2	3	1	18.86
6	2	3	1	2	24.21
7	3	1	3	2	29.48
8	3	2	1	3	32.44
9	3	3	2	1	26.52
K₁	79.72	87.86	83.52	72.25	—
K₂	74.58	75.84	82.57	78.23	—
K₃	88.44	79.04	76.65	92.26	—
k₁	26.57	29.29	27.84	24.08	—
k₂	24.86	25.28	27.52	26.01	—
k₃	29.48	26.35	25.55	30.75	—
R	4.62	4.01	2.29	6.67	—

	A（HACS）/g	B（SS）/g	C（GI）/g	D（CMC）/g	溶解时间/s
1	1	1	1	1	26.87
2	1	2	2	2	24.54
3	1	3	3	3	28.31
4	2	1	2	3	31.51
5	2	2	3	1	18.86
6	2	3	1	2	24.21
7	3	1	3	2	29.48
8	3	2	1	3	32.44
9	3	3	2	1	26.52
K₁	79.72	87.86	83.52	72.25	—
K₂	74.58	75.84	82.57	78.23	—
K₃	88.44	79.04	76.65	92.26	—
k₁	26.57	29.29	27.84	24.08	—
k₂	24.86	25.28	27.52	26.01	—
k₃	29.48	26.35	25.55	30.75	—
R	4.62	4.01	2.29	6.67	—