Method for improving the quality of freeze-dried apples by impregnation with a composite solution combined with radio frequency treatment

By combining composite solution impregnation and radio frequency treatment, the problems of browning, texture and drying efficiency of freeze-dried apples have been solved, realizing efficient and low-energy production of freeze-dried apples while maintaining the color and nutritional components of the apples.

CN122139909APending Publication Date: 2026-06-05BRILLIANCE BIO TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BRILLIANCE BIO TECH CO LTD
Filing Date
2026-04-23
Publication Date
2026-06-05

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Abstract

The application discloses a method for improving the quality of freeze-dried apples by composite solution impregnation combined with radio frequency treatment, and belongs to the technical field of food processing. The method mainly comprises the following steps: raw material pretreatment; preparation of a composite impregnation solution; atmospheric pressure impregnation treatment; radio frequency heating treatment; pre-freezing; and freeze drying. The freeze-dried apples are pretreated by composite solution impregnation combined with radio frequency, so as to prevent browning of the apples in the freeze-drying process, improve the texture, accelerate the drying rate, and significantly improve the product quality and processing efficiency.
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