Method for preparing pu'er tea fermentation mother culture

A technology for Pu'er tea and Pu'er tea leaves, which is applied in the field of preparation of Pu'er tea fermented koji, can solve problems such as no public reports, and achieve the effects of being beneficial to quality, easy to use and low cost.

Inactive Publication Date: 2009-05-13
YUNNAN AGRICULTURAL UNIVERSITY
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Through literature search, there is no pu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing pu'er tea fermentation mother culture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The strains used in the present invention are Aspergillus niger or Aspergillus gray-green, or common Penicillium: the strains are isolated from Pu'er tea cooked cake tea and cooked loose tea in Pu'er, Lincang and Xishuangbanna areas of Yunnan according to conventional methods. The culture medium is selected from common Bengal red (tiger red) medium or PDA solid medium, or PDA liquid medium, or wort medium, or Chapei medium. The equipment used in the present invention is conventional equipment.

[0012] The preparation method of the present invention is an improvement based on the traditional seed koji preparation method. The preparation method of the present invention includes substrate treatment, inoculation, cultivation and freeze-drying procedures; the specific procedures are as follows:

[0013] a. The substrate treatment process is as follows: crush the tea substrate into 40-mesh tea powder, then put it into a high-pressure sterilizer, sterilize at 0.1MPa, 121°C f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a preparation method of Pu'er tea fermentation seed-starter, belonging to the Pu'er tea processing technical field. The preparation method comprises: processing ground mass, inoculating, cultivating and freeze-drying; concretely: a: crushing the tea-leaf ground mass into tea powder of 40mesh; sterilizing for 25min in a process retort at 0.1MPa and 121degree; natural cooling to room temperature; b: processing Aspergillus niger, Aspergillus glaucus and common penicillium into a PDA liquid medium suspension liquid with spore number ratio of 1:1:1 using conventional method and controlling the concentration of the zymogen being 105-107CFU/g after inoculating and controlling the ratio of tea leaf to PDA liquid culture being 4:1; c: inoculating on the PDA culture medium at 30degree for 40h; d: freeze vacuum drying the cultured seed-starter germ at -18degree until the water content is 8-10%, therefore the seed-starter is obtained. The preparation method has features of simple preparation method, low cost, convenient use and is favourable to increase the Pu'er tea quality and especially suitable for large-scale Pu'er tea production.

Description

Technical field: [0001] The invention relates to a method for preparing fermented Pu'er tea koji, which belongs to the technical field of Pu'er tea processing. Background technique: [0002] In the production of Pu'er tea, the natural fermentation of Pu'er tea is a traditional process that has been used to this day. With the increase of people's demand for high-quality Pu'er tea, a new process of using microorganisms for Pu'er tea stack fermentation has appeared in recent years, which is conducive to the improvement of the quality of Pu'er tea. [0003] Through document search, do not see the public report identical with the present invention. Invention content: [0004] The object of the present invention is to provide a method for preparing fermented Pu-erh tea koji with simple preparation method and low cost. [0005] The preparation method of the present invention is an improvement based on the traditional seed koji preparation method. The preparation method of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23F3/10
Inventor 邵宛芳袁唯王文光袁力丰曹冠华
Owner YUNNAN AGRICULTURAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap