Processing and fresh-keeping technology of pre-packed clean vegetables

Abstract

The invention relates to a processing and fresh-keeping technology of pre-packed clean vegetables. The processing and fresh-keeping technology of the pre-packed clean vegetables is realized by mainly implementing the following steps: (1), timely harvesting the raw materials which meet the harvesting standards; (2), selecting the harvested vegetables according to requirements; (3), washing the selected vegetables, namely firstly adding an appropriate amount of sodium metasilicate into water, washing the vegetables by the solution, and rinsing the washed vegetables by clean water until the vegetables are clean; (4), soaking the completely rinsed vegetables in a circulating flow of ozone in cold water so as to carry out sterilizing and pre-cooling; (5), performing surface dehydration treatment on the sterilized and pre-cooled vegetables; (6), performing gas-bearing packing on the dehydrated vegetables, namely firstly packing the vegetables with freshness protection packages, filling the freshness protection packages with pre-configured mixed gas after the vegetables are contained in the freshness protection packages, and sealing the freshness protection packages; and (7), warehousing the packed vegetables in a fresh-keeping storehouse. The processing and fresh-keeping technology of the pre-packed clean vegetables has the following beneficial effects: the processing and fresh-keeping technology is capable of effectively removing microorganisms on surfaces of the vegetables, so as to greatly improving the fresh-keeping qualities of the pre-packed clean vegetables. The processing and fresh-keeping technology is capable of better prolonging shelf lives of the pre-packed clean vegetables, preserving nutritive qualities of the pre-packed clean vegetables to the maximum extents, and realizing relatively satisfactory cleaning and sterilizing effects.

Description

technical field [0001] The invention relates to the fresh-keeping field, and mainly relates to a process for processing and keeping fresh vegetables. It is suitable for the processing and preservation of clean vegetables for short-term storage for turnover sales, but not for the preservation of vegetables for long-term storage. Background technique [0002] Clean vegetables refer to trimming, cleaning, grading, and packaging of vegetables (some vegetables require peeling, heart removal, and cutting) to make their edible rate close to 100%, basically reaching the hygienic standard for direct cooking. With the development of our country's social economy and the improvement of people's living standards, in recent years, the market of clean vegetables has gradually developed. Since cutting vegetables eliminates the need for cleaning, peeling, cutting, and nuclear removal before use, the processing time is greatly saved. , Reduce the cost of waste disposal of products and the co...

AI Technical Summary

Problems solved by technology

There are no efficient pre-cooling and sterilization supporting methods in the processing and preservation of clean vegetables, backward preservation methods, and rapid decline in vegetable quality.