Blueberry preserved fruits and preparation technique thereof

Abstract

The invention relates to a preserved blueberry fruit and is characterized in that the preserved blueberry fruit is translucent and has the color of fresh fruit flesh, the sugar content is 30 to 40 percent, the water content is 20 to 22 percent, and the total acidity is less than 1 percent. The preparing process of the preserved blueberry fruit comprises the following steps: the blueberries are washed in acid liquor to cause faintly acid; the blueberries after acidulation are candied in low temperature; and the candied blueberries are dried. The preserved blueberry fruit has moderate content of sugar and water and is acidulous, thus ensuring the nutrient components and sell-by date of the preserve. The preparation process of the preserved blueberry fruit is simple, and as acidulation and low temperature candy are adopted, the original rich nutrition and taste of blueberries are reserved on the premise of ensuring the appearance of the preserved blueberry fruit, and the low temperature drying causes sour-sweet taste and moderate hardness of the preserved blueberry fruit. The preserved blueberry fruit expands the processed cultivars of blueberries effectively, and the preparation process is beneficial to industrialized production, and the invention provides a good commercial development approach for rich wild and cultivated blueberry resource in our country.

Description

technical field [0001] The invention belongs to the technical field of preserved fruit food and its processing technology, and in particular relates to a preserved blueberry fruit and a preparation process of the preserved blueberry fruit. Background technique [0002] Blueberry scientific name lingonberry, also known as bilberry, crow fruit, blueberry. It belongs to the genus Vaccinium in the family Rhododendron. The fruit is blue in color and covered with a layer of white fruit powder. The flesh is delicate, sweet and sour, and is known as the "king of berries". There are about 450 species of blueberries in the world, and about 90 species, 24 varieties and 2 subspecies in my country. It is suitable for growing in most parts of the northern hemisphere, and its fruits and leaves are widely used in the food industry and medicine. There are a large number of wild species found in Daxing'an Mountains, Xiaoxing'an Mountains, South China, Central China, East China, and Southwe...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to improve a preparation process of preserved blueberry fruit and preserved blueberry fruit with less nutritional loss, preserved the color of the original berry in appearance, has the original taste of blueberry, and has a longer shelf life, and solves the problem that the existing blueberry cannot be made into preserved fruit. And the preserved fruit that adopts high-temperature method to make is big in nutrition loss, and outward appearance is poor, loses the defect of original local flavor