Preparation method of tea polysaccharide
A tea polysaccharide and tea technology, which is applied in the field of preparation of plant polysaccharides, can solve the problems of unsalable tea, limited resources, and unutilized tea, and achieve the effects of simple operation, high product quality and strong operability.
Inactive Publication Date: 2014-12-17
SHAANXI SHENGMAI PETROLEUM
View PDF0 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] A large number of pharmacological tests have confirmed that polysaccharides are an important hypoglycemic substance. However, plants with high polysaccharides in natural plants are mostly Chinese herbal medicines such as ginseng, cannabis, and ganoderma, which are expensive and have limited resources.
On the other hand, the middle and low-grade teas on the market are seriously unsalable, and at the same time, a large number of by-products such as branches, leaves and ash in the process of tea production and processing, most of which are not used
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0016] Take 1 kg of coarse old tea leaves, wash, drain, and then pulverize; soak in warm water at 50°C for 45 minutes, first use a sieve to filter coarsely, and then filter with fine sand cores with a pore size of 1 μm, and cool the extract after filtering to room temperature; Use a polysulfone membrane with a molecular weight cut-off of 80,000 to 100,000 Daltons, filter at 0.2 MPa, separate the retentate and dissolve it in water, add 95% ethanol solvent for extraction, and then centrifuge the condensate; separate the condensate Distilled under reduced pressure and dried in vacuum to obtain 35g of tea polysaccharide product.
Embodiment 2
[0018] The quality of this type of product is mainly evaluated by the content of polysaccharides. It is determined that the tea polysaccharide content prepared by the preparation method of the present invention is about 36%, which is higher than the standard of about 25% of the polysaccharide extracted by the general process.
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
| Property | Measurement | Unit |
|---|---|---|
| molecular weight | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a preparation method of a plant polysaccharide, and belongs to the field of a food additive and the preparation method thereof. The preparation method of a tea polysaccharide comprises the following steps: (1) cleaning tea leaves, draining water from the tea leaves and then smashing the tea leaves; (2) leaching the tea leaves in warm water for certain time under a normal pressure and filtering so as to obtain leach liquor, and cooling the leach liquor to reach a room temperature; (3) filtering the leach liquor with a membrane, dissolving residues in water and adding an organic solvent for extracting, and carrying out centrifugal separation on a condensation product; and (4) carrying out reduced pressure distillation on a centrifuged condensation product and carrying out vacuum drying so as to obtain a finished product plant polysaccharide. The preparation method has the characteristics of simple process, strong operability and the like, and is suitable for industrial production and ensures that the tea polysaccharide is high in quality.
Description
technical field [0001] The invention relates to a preparation method of plant polysaccharides, belonging to the field of food additives and preparation methods thereof. Background technique [0002] Polysaccharides widely exist in animal cell membranes, plant and microbial cell walls, and are one of the four basic substances that constitute life. Polysaccharides have attracted increasing attention due to their diverse biological activities. Especially in the past ten years. With the continuous deepening of research on the separation and purification, structural analysis, physical and chemical properties, immunology and pharmacology of plant polysaccharides by scientists from all over the world, it has become a concern in the food and medical circles to find a source of plant polysaccharides that is relatively rich in resources and low in cost. hot spot. At present, there are more than ten kinds of plant polysaccharides that have been or are being developed, including gins...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM