Hello to everyone
I want to make an antimicrobial or antioxidant film and i want to control the transfer rate of these parts from film to food products. Which edible film is better to use for this purpose and by which changes can I control the transfer rate of antimicrobial or antioxidant part of this film to foods? or other ways to control this rate? thanks for all of you
Well, this part is the crucial for antimicrobial film. You have to do release studies and kinetics for the same. Leaching of antimicrobial agents in films vary with many factors and you have to work on that.
if your anti-oxydant are known, you have to follow the transfert in times, by extracting them from your food matrix and dosing them by HPLC or another sensitive analyse, but some times food matrix is too complexe , extraction and identification will be too much difficult and loss of information too. you must also identify and quantify antioxydants in your food matrix.
here you can choose to work not with real food, but with standard liquide transfert (lipophilic or hydrophilic) as similar as global composition of your food, but exempt of molecules witch can cause interferences in your extraction step or in the quantification one.
i hope that it will help you
You may have to do compatibility test before you establish the combination of matrix material and antimicrobial or antioxidant agent,Thre are some protocol for this assay.Conserning tcontrol the transfer rate of antimicrobial or antioxidant part of this film to foods you have to do release studies
You have to verified through the use of HPLC chromatography
masoud, why do u hang on intricate things? be practical...just soak ur food into antioxydant solution then pack it.
on the other hand maybe edible chitosan/alginate matrix will do the job.
Firtly you may have to do compatibility test with the matrix packaging and the antioxidant or antimicrobial added to the film .Once you have good biocompatibility testing you investigate the release rate (through a choised protocol) of the bioactive from the film to the food . See tha attached file to have an idea
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