TH19560A3 - Bioactive composite film - Google Patents

Abstract

A summary of the invention, which appears on the advert page, ReadFile:A bioactive composite film consisting of a mixture of glycerol, silvernitrate solution and citric acid. The mixture of cassava starch and polyvinyl alcohol dissolved in sugarcane leaf extract was processed to produce composite film according to this invention. The procedure was as follows: cassava starch and polyvinyl alcohol were added to sugarcane leaf extract. Silvernitrate solution was added to the solution to obtain a polymer matrix, then glycerol was added to the resulting polymer matrix, stirred and citric acid was added. Ric into the slurry mixture poured onto glass plates and baked at 40-50C for 4-5 h to form a bioactive composite film for inhibiting both Gram-positive bacteria. And gram negative can be molded in both film and bag form for fruit and vegetable packaging, which is another option for consumers to slow down the ripening of fruits and vegetables.

Claims (9)

Claims (all) which will not appear on the classifieds page: 1. The bioactive composite film consists of a mixture of 74.73-95.04% by weight glycerol 0.19-2.69% by weight silvernitrate solution 0.02-0.16 percent by weight. Citric acid 4.75-22.42% by weight The mixture was composed of cassava starch and polyvinyl alcohol at a ratio of 1:1 by weight dissolved in sugarcane leaf extract. 2. Bioactive composite film according to Claim 1, where the suitable sugarcane leaf extract has a ratio of sugarcane leaves to water equal to 1 gram per 10 ml. 3. Composite film bioactive according to claim 1 or 2 where an appropriate solution of silver nitrate is aqueous silver nitrate. 4. Bioactive composite film according to one of Claims 1-3 where an appropriate solution of silver nitrate has a concentration of 100 mg/L. 5. Bioactive composite film pursuant to one of Claims 1-4, where sugarcane leaf extract can be substituted with cloveoil or olive oil or water. Ginger oil or Oregano oil or coffee grounds extract or aloe vera extract or green tea extract, or a combination of 2 or more 6. Bioactive composite film pursuant to Claims 1-5, where tapioca starch can be substituted with either corn starch or wheat starch or rice starch, or a combination of 2 or more. kind or more 7. Bioactive composite film pursuant to Claims 1-6, where polyvinyl alcohol can be substituted with polyvinyl chloride or polypropylene. either or mixed together 8. Bioactive composite film according to claims 1-7, where glycerol can be substituted with soylecitin. 9. Bioactive composite film pursuant to one of Claims 1-8 where silvernitrate solution can be substituted with silverchloride or silver peroxide. Chlorate (SilverPerchlorate) one 0. The process for producing bioactive composite film according to claim 1-9, which has the following steps: A. Add tapioca starch and polyvinyl alcohol in sugarcane leaf extract. Stir the mixture at 80-95 degrees Celsius for 20-30 minutes. b. Add silvernitrate solution to the resulting solution and stir the mixture at 80-95 degrees Celsius for 15-20 minutes. The polymer matrix C is obtained. Glycerol is then added to the polymer matrix obtained from clause B and stirred at 25-30 °C for 5 min. .Add citric acid to the mixture obtained from the joints and stir at 25-30 degrees Celsius for 5-10 minutes. F. The solution obtained from the joints is poured onto a glass plate and baked at a temperature 40-50 degrees Celsius for 4-5 hours