Open Access
Table 1
The composition and parameters of the preparation of film-forming solutions
| Number of sample | Ratio of recipe components, % | Parameters of preparation | |
|---|---|---|---|
| 1 | Gelatin solution 5% | 49,2 | Weighed portions of gelatin and starch powders were separately poured with water at 20 ° C and soaked for 10 min. Stirred at 150 rpm for 15 minutes. Then brewed with constant stirring at a temperature of 90 ° C for the starch solution and 60 ° C for the gelatin solution for 25 minutes. Glycerin and natamycin were added. Mixed and homogenized with constant stirring for 15 min at a temperature of 70 ° C |
| Starch solution 5% | 49,2 | ||
| Glycerin | 1,3 | ||
| Natamycin | 0,3 | ||
| 2 | Chitosan solution 1% | 49,2 | Weighed portions of chitosan and sodium alginate were poured with water at 20 ° C and soaked for 30 min. Stirred continuously at 120 rpm for 45 min to obtain a homogeneous solution. Glycerin and natamycin were added. Mixed and homogenized with constant stirring for 15 min at a temperature of 70° C |
| Sodium alginate solution 1% | 49,2 | ||
| Glycerin | 1,3 | ||
| Natamycin | 0,3 | ||
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