Stress fresh-keeping method and flexible package suitable for thin-skin grape storage and transportation

Abstract

The invention relates to a stress fresh-keeping method and flexible package suitable for thin-skin grape storage and transportation. The method comprises the following steps of (1) spraying a litsea cubeba essential oil and microbial bacterial antagonist compound fresh-keeping bacteriostatic agent to grape clusters before picking; (2) performing selection and sorting for 3 hours, performing treatment with CO2 with the concentration of 60-80% in a large fresh-keeping tent for 20-30 minutes, and controlling the O2 concentration to be 3-5%; (3) performing ventilation and pre-cooling at the temperature of 0+ / -2 DEG C for 24-36 hours, and carrying out MAP static storage; (4) performing gradient heating treatment for storage and delivery; and (5) after delivery, performing dynamic storage and transportation on grapes by adopting flexible packages of bag-in-bag active packaging bags. According to the invention, the design is scientific and reasonable, and the structure is simple; the fresh fruit stress reaction is started through short-time stimulation of high-concentration gas; the technical problems of pressing crack of the thin-skin grapes in dynamic storage and transportation and thelike are solved through gradient temperature rise and flexible packaging in combination with a flexible packaging material; the dynamic transportation pressing crack rate of the thin-skin grapes withthe thickness smaller than 0.219 mm is lower than 3%; and by adopting the technology, the thin-skin grapes are preserved for 30-40 days, and the good fruit degree is 95% or above.

Description

technical field [0001] The invention belongs to the field of post-harvest storage and transportation of fruits and vegetables, relates to grape storage and transportation technology, in particular to a stress preservation method and flexible packaging suitable for storage and transportation of thin-skinned grapes. Background technique [0002] With the diversification of consumers' demand for agricultural products and the improvement of product quality requirements, the market potential of high-quality specialty fruits and vegetables is huge. However, my country's fresh-keeping technology is relatively backward compared with developed countries, the degree of commercialization is low, and the supporting technology system for storage, transportation, and sales is not perfect. . At present, the pre-harvest and post-harvest technology coupling control technology for special fruits and vegetables is not in place. The rot loss of post-harvest vegetable products in my country is a...

AI Technical Summary

Problems solved by technology

However, this method cannot achieve the long-term effect of fresh-keeping paper in long-term transportation and the purpose of slow-release antibacterial and other problems. This method performs pretreatment after picking, and then carries out MAP spontaneous controlled atmosphere static storage, forming adversity in a short time, thereby Improve the resistance of grapes, and then no longer process, without the use of preservatives, improve the safety of grapes, maintain the spontaneous physiological activity of grapes, and keep grapes fresh

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