Tea microwave and ultrasonic wave combined dynamic countercurrent extraction method and equipment

A technology of dynamic countercurrent and extraction equipment, applied in tea extraction and other directions, can solve the problems of easy chemical change of active ingredients in tea, weak aroma, and long extraction time, so as to achieve automatic adjustment and online control, and reduce the loss of active ingredients. , the effect of shortening the extraction time

CN101703131AActive Publication Date: 2010-05-12DAMIN FOODSTUFF ZHANGZHOU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-05-12

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Abstract

The invention discloses tea microwave and ultrasonic wave combined dynamic countercurrent extraction method and equipment. Microwave-ultrasonic wave combination stage-by-stage time-division extraction is adopted to give full play to the characteristics and the advantages of a microwave and ultrasonic wave extraction technology. In the whole extraction process, the flow direction of an extraction solvent is opposite to that of tea, thereby realizing a dynamic countercurrent continuous extraction function, being beneficial to extracting active ingredients of the tea and maximizing the tea extraction function and the efficiency; the rear end of extraction equipment is provided with a solid-liquid separation device, so that tea dregs after extraction can be dehydrated for realizing the comprehensive utilization of the tea dregs on one hand, and on the other hand, the filtered tea liquid can be circulated and utilized, thereby reducing the loss of the active ingredients in the tea liquid;the whole extraction process is completed at lower temperature, thereby being beneficial to preventing the active ingredients in the tea from being damaged by high temperature up to the hilt, saving the usage amount of the extraction solvent, reducing pollution and lowering the cost. The invention can realize industrial large-scale extraction production.
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Description

technical field

[0001] The invention relates to the extraction of active ingredients in dried tea leaves, fresh tea leaves, Chinese medicinal materials and other animals and plants, in particular to a tea microwave and ultrasonic combined dynamic countercurrent extraction method and equipment. Background technique

[0002] Tea is one of the three major beverages in the world. Because tea beverages are natural, healthy, and convenient to drink, people are more fond of tea beverage products. Tea is known as "National Drink" in China. Extraction is a basic and important process step in the deep processing of tea. The extraction efficiency directly affects the yield of tea quality components and product quality. At present, boiling water extraction and organic solvent extraction are mostly used to extract the active ingredients of tea leaves. The tea products obtained not only have quality problems such as weak fragrance, precipitation, and color change, but also take a long ti...

Examples

Embodiment Construction

[0029] see figure 1 A tea microwave and ultrasonic combined dynamic countercurrent extraction equipment includes a frame 25 on which a housing 8 is fixed, and the housing 8 includes a microwave extraction chamber 2, an ultrasonic extraction chamber 18 and a solid-liquid separation chamber 14. It is in the shape of steps that decrease step by step. The side wall of the microwave extraction chamber 2 is provided with a feed inlet, connected to the hopper 1, and a rotating shaft is arranged in the microwave extraction chamber 2, and the first auger 26 is set on the rotating shaft. The microwave extraction chamber 2 is provided with a microwave generator 3 facing the first auger 26; a rotating shaft is also provided in the ultrasonic extraction chamber 2, and the rotating shaft passes through the ultrasonic extraction chamber 2 and the solid-liquid separation chamber 14 and extends out of the solid-liquid separation chamber 14 Outside, the end of the rotating shaft is provided wit...