Preparation of Nano-TiO_2 Fresh-keeping Paper and Its Fresh-keeping Effect on Mini Cucumbers

Nano-TiO2 coated paper of different TiO2 concentration was prepared and used together with preservative film for fresh-keeping of mini cucumber.The sensory quality of mini cucumber was evaluated during storage process.The weight loss,hardness,vitamin C contents and chlorophyll content of mini cucumber were determined.The results showed that the shelf life of mini cucumbers can be extended by packaging with preservative film combining fresh-keeping film;15% nano-TiO2 coated paper combining fresh-keeping film can extend shelf life of mini cucumber by 30 days.