Quick-frozen strawberry freshness-enhancing method and product thereof

Abstract

The invention discloses a quick-frozen strawberry freshness-enhancing method and a product thereof. The quick-frozen strawberry freshness-enhancing method comprises the following steps that thawing isperformed, specifically, thawing is performed on quick-frozen strawberries; and cell wall breaking is performed, specifically, cell wall breaking treatment is performed on the thawed strawberries, cell contents are released, and freshness of the quick-frozen strawberries is enhanced. According to the quick-frozen strawberry freshness-enhancing method and the product thereof, cells of the quick-frozen strawberries are subjected to the wall breaking treatment for the first time to release the cell contents; the cell contents with the necessary high-quality strawberry flavor and taste are obtained, so that the freshness of the quick-frozen strawberries is enhanced, and the quick-frozen strawberries can be directly eaten; and the cell wall breaking treatment enables the cells or cell walls tobe broken and solves the problem of cryogenic burns of the cells. In an improved scheme, the wall breaking product is frozen, a strawberry biochemical reaction is slowed or even stopped, no additiveor preservative needs to be added, and fresh taste and flavor can be retained for a long time. The quick-frozen strawberry freshness-enhancing method and the product thereof solve the worldwide problems of freshness enhancing and freshness retaining of the quick-frozen strawberries.

Description

technical field [0001] The present application relates to the field of quick-frozen strawberries, in particular to a method for increasing the freshness of quick-frozen strawberries and products thereof. Background technique [0002] Although strawberries have high nutritional value, they are not easy to transport and store; some studies have shown that fresh and mature strawberries can only be stored for 1-2 days at room temperature, even at -0.5-0°C and relative humidity of 85-90%. , and can only be stored for 7-10 days. [0003] Quick-frozen strawberries refer to strawberry products prepared in accordance with the national standard GB / T 31273-2014 "Management Specifications for Quick-frozen Fruits and Quick-frozen Vegetables". Although quick-freezing strawberries can greatly extend the storage period; but quick-freezing strawberries is usually carried out at -18°C or even lower temperatures, which can easily cause frostbite of strawberries, lead to damage and destruction...

AI Technical Summary

Problems solved by technology

Therefore, quick-frozen strawberries can generally only be used as industrial raw materials, such as for pigment extraction, wine making, etc., or as embellishments for some pastries, and cannot be eaten directly.

[0004] In addition, the economic value of quick-frozen strawberries is far lower than that of fresh strawberries. The retail price of quick-frozen strawberries is only about 1-2 yuan / catties, or even cheaper; this is a great loss for fruit farmers.