High-activity water soluble puer tea dietary fiber

Abstract

The invention discloses high-activity water soluble puer tea dietary fiber, and belongs to the technical field of tea processing. The dietary fiber is prepared by the following steps of: crushing cooked puer tea to form 80-mesh particles; mixing 1g of tea and 100ml of de-ionized water, wherein the water temperature is 50 to 80 DEG C; preserving the heat for 12 hours; centrifugally filtering the mixture with a 300-mesh filtering cloth; adding 500 to 2,000u of composite enzyme of cellulase, hemicellulase and pectinase into the mixture of the 1g of tea dreg and 50ml of de-ionized water, wherein the water temperature is 45 DEG C and the pH value is 5.5; preserving the heat for 8 to 12 hours; performing centrifugal filtration and combining the filtrate of the two steps; mixing the filtrate and edible alcohol in the proportion of 1 to 5 and stirring for 15 minutes; standing for 5 hours and centrifugally collecting precipitate; adding 1g of precipitate into 50ml of de-ionized water, dissolving the precipitate, dialyzing the room temperature flowing water in a dialysis bag with molecular interception of 1,500 for 24 hours and collecting dark brown solution which does not pass through the dialysis bag; and concentrating under reduced pressure and performing spray drying to obtain the puer tea dietary fiber. The dietary fiber has low cost, high content of polysaccharide, oligosaccharide and protein, obviously suppresses the adsorption and utilization of dietary cholesterol and is applied to the field of health-care products of foods.

Description

Technical field: [0001] The invention relates to a highly active water-soluble Pu'er tea dietary fiber, which belongs to the technical field of tea processing. Background technique: [0002] The physiological role of dietary fiber in the human body has gradually been recognized, and it has become an internationally popular health food just like vitamins. Because it can reduce constipation, prevent hemorrhoids, intestinal ulcers, intestinal cancer, diabetes, obesity, promote gastrointestinal peristalsis, help digestion, and integrate cholesterol, porphyrin and heavy metal toxic substances in the digestive tract, it is regarded as " Preventive factors for diseases of civilization (diabetes, fatty liver, etc.). At present, the dietary fiber varieties developed in my country mainly include: (1) corn husks, bean skins, bean dregs, wheat bran, chaff, persimmon skins, peanut skins, potato dregs, etc. These are the by-products of the processing of agricultural by-products. They we...

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Problems solved by technology

[0004] Through document retrieval, do not see the public report identical with the present invention