Frozen dry jujube and preparation thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOOD INST LULIANG DISTRICT SHANXI PROV
- Publication Date
- 2003-06-18
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
Technical field
[0001] The invention relates to jujube and jujube drying, in particular to a freeze-dried jujube prepared by vacuum freeze-drying technology, and also relates to a preparation method of the freeze-dried jujube. Background technique
[0002] Jujube is a fruit with high medicinal and nutritional value. Fresh jujube is sweet and sour, rich in sugar, vitamins, protein, amino acids and trace elements, especially high in VC, which is known as live vitamin pills. But because the water content is about 70% in the fresh jujube, it is difficult to preserve and transport, according to statistics, the loss quantity of fresh jujube is up to 20%-30% every year because of rot, and the number is very alarming.
[0003] The traditional drying of jujube has two methods: air-drying and drying-drying. The air-drying drying method is to place fresh jujubes under natural conditions, and rely on sunlight and natural ventilation to evaporate and dry. The drying time is 3-4 weeks. D...