Puffing Chinese chestnut whole fruit product and production method thereof

Abstract

The invention discloses a puffing Chinese chestnut whole fruit product and a production method thereof. The method comprises the following steps: steaming a Chinese chestnut raw material to a cooked state; and subjecting the raw material to variable temperature and pressure difference puffing in a puffing tank, so as to obtain the puffing Chinese chestnut whole fruit product. The variable temperature and pressure difference puffing comprises steps of: 1) keeping the cooked Chinese chestnut in the puffing tank at a temperature of 90-100 DEG C and a pressure of 0.1-0.3MPa for no more than 15 minutes; 2) reducing the system pressure to a vacuum state, at the same time cooling to 60-70 DEG C and maintaining for 115-120 min; and 3) cooling the system to 10-30 DEG C, maintaining for 30-60 min and breaking the vacuum. According to the method, no pigment or other additive is added in the processing process; the original color and flavor of the fruit are retained as much as possible; and the method is pure natural, safe and healthful.

Description

technical field [0001] The invention relates to a puffed whole chestnut fruit and a production method thereof. Background technique [0002] Chestnut (Castanea mollissima Blume), the genus Chestnut of the Fagaceae, has another name called chestnut. There are 4 main edible chestnuts in the world, namely European chestnut, American chestnut, Japanese chestnut and Chinese chestnut. Chestnut cultivation in my country is widely distributed, starting from Jilin, Liaoning in the north, Hainan Province in the south, Taiwan and coastal provinces in the east, and Inner Mongolia, Gansu, Sichuan, Guizhou and other provinces in the west, spanning five temperate to tropical climate zones. The total output and cultivated area of ​​Chinese chestnut are increasing year by year. By the end of 2005, the planting area reached 1.25 million hectares, accounting for 38% of the world's total planting area; the total output reached 825,000 tons, accounting for about 3 / 4 of the world's total output...

AI Technical Summary

Problems solved by technology

[0004] Chestnut is a nut, which belongs to the category of dried fruit, and is more resistant to storage than fruits. However, due to improper storage and transportation after harvest, it is prone to water loss, mildew and insect damage, and rot occurs, resulting in a loss of up to 50%.

Domestic chestnut products mainly include canned chestnuts, fried chestnuts in sugar, chestnut powder, preserved chestnut fruit, chestnut sauce, chestnut cake, chestnut beverage, etc., but the added value is low. For example, chestnut starch is mainly used as an auxiliary material or ingredient in food processing, etc.

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