Freshness Preservation Effects of Hypobaric Storage on Red Pepper

Abstract

As the third technological revolution of food preservation technology, decompression storage is non-polluting and simple to operate. High security advantages. VC is an indispensable nutrient in human life activities, and the human body cannot synthesize it by itself, but can only source and food. The vitamin C content of red pepper ranks first in vegetables, because it is ripe in summer, it is not resistant to storage, so it is necessary to extend the storage time of red pepper through certain methods. To study the effects of hypobaric storage treatment on the postharvest storage of red pepper, the experiment of red pepper was carried out. The effects of hypobaric storage on the appearance, water loss rate and VC content were analyzed. 2,6-dichloroindophenol standard solution was involved, and the content of VC in red pepper was collected. Three methods, that is, 48h hypobaric storage+ refrigerator refrigeration, 24h hypobaric storage+ refrigerator refrigeration and refrigerator refrigeration were taken. The VC contents were 109mg/100 g, 138 mg/100 g and 96 mg/100 g respectively after the experiment. However, after boiling water treatment, the content were 99mg/100 g, 129g/100 g and 90g/100 g, respectively. 24h hypobaric storage+ refrigerator refrigeration was much better in the comparison. Hypobaric storage can significantly maintain the appearance of red pepper, delay the reduction of VC content, and reduce the weight loss. The results showed that hypobaric storage had a significant effect on the freshness preservation of red pepper.