Comparison between essential oils and supercritical extracts into chitosan-based edible coatings on strawberry quality during cold storage

Plant extracts are being studied in the development of novel edible food coatings. The antioxidant and antimicrobial compounds that naturally occur some plants key substances contribute to preserving quality. Besides plant material, method utilized produce extract influences its chemical preservative characteristics. In general, hydrodistillation products (essential oils) well recognized for containing high concentration or volatile compounds. Supercritical fluid technology produces quality bioactive with higher yield but lower compounds, comparison hydrodistillation. this work, six different natural five were produced by supercritical extraction, their activities compared. most active used chitosan-based coatings aim assessing effect essential oils versus on preservation strawberries.