Pitaya pericarp dietary fiber powder

A technology of dietary fiber powder and dragon fruit peel is applied in the directions of food preparation, food science, application, etc., which can solve problems such as unexploited utilization, and achieve the effects of strong binding and exchange capacity, delaying absorption speed, and increasing viscosity.

Inactive Publication Date: 2014-04-02
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dragon fruit peel is a by-product of the processing industry, which is directly discarded and has not been exploited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Collect fresh pitaya peel, wash, air-dry in indoor ventilated place, crush, pass through 80-mesh sieve, and take the under-sieve to prepare high-activity pitaya peel dietary fiber powder;

[0018] (2) It has been determined that the dietary fiber content in the dietary fiber powder product is 80.17%, the vegetable protein content is 6.65%, the vegetable oil content is 1.34%, and the polyphenol content is 6.98%. The IC50 values ​​of base scavenging ability and nitrite scavenging ability are 45.36, 26.79 and 30.60 μg / mL respectively; the content of water-soluble dietary fiber is 27.02%, and the ratio of insoluble dietary fiber is 1:1.77; its water holding capacity, oil holding capacity and The swelling properties were 34.11g / g DW, 2.56g / g DW and 45.28mL / g DW, and the dialysis retardation coefficients for glucose were 50.84%, 50.81% and 56.31% at 20min, 40min and 60min, respectively.

Embodiment 2

[0020] (1) Collect fresh pitaya peel, wash, dry, pulverize, pass through a 250-mesh sieve, and take the sieve to prepare high-activity pitaya peel dietary fiber powder;

[0021] (2) It has been determined that the dietary fiber content in the dietary fiber powder product is 70.81%, the vegetable protein content is 6.78%, the vegetable oil content is 1.53%, and the polyphenol content is 7.05%. The IC50 values ​​of base scavenging ability and nitrite scavenging ability are 46.00, 25.88 and 31.25 μg / mL respectively; the content of water-soluble dietary fiber is 27.26%, and the ratio of insoluble dietary fiber is 1:1.40; its water holding capacity, oil holding capacity and The swelling properties were 40.70g / g DW, 2.53g / g DW and 40.88mL / g DW, and the dialysis retardation coefficients for glucose were 33.98%, 27.75% and 42.17% at 20min, 40min and 60min, respectively.

Embodiment 3

[0023] (1) Collect fresh pitaya peel, wash, microwave dry at 480 output power, pulverize, pass through a 140 mesh sieve, and take the sieve to obtain high-activity pitaya peel dietary fiber powder;

[0024] (2) It has been determined that the dietary fiber content in the dietary fiber powder product is 79.45%, the vegetable protein content is 6.74%, the vegetable oil content is 1.44%, and the polyphenol content is 7.73%. The IC50 values ​​of base scavenging ability and nitrite scavenging ability are 45.11, 26.02 and 29.25 μg / mL respectively; the content of water-soluble dietary fiber is 34.28%, and the ratio of insoluble dietary fiber is 1:1.32; its water holding capacity, oil holding capacity and The swelling properties were 54.59g / g DW, 2.66g / g DW and 50.60mL / g DW, and the dialysis retardation coefficients for glucose were 62.61%, 60.40% and 64.39% at 20min, 40min and 60min, respectively.

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PUM

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Abstract

The invention discloses pitaya pericarp dietary fiber powder, belonging to the field of functional food additives. The high activity dietary fiber powder is prepared by drying, crushing and sieving the pitaya pericarp. The pitaya pericarp dietary fiber powder is characterized in that: the dietary fiber powder comprises no less than 69 % of dietary fibers, proper amount of vegetable protein, and low content of vegetable oil and is rich in phenols; the content of soluble dietary fibers is very high, and the ratio of the soluble dietary fibers to the insoluble dietary fibers is good; the test results show that the dietary fiber powder has high antioxidative activity, outstanding water-keeping ability, oil-keeping ability, swelling property, dialysis retardation index of glucose and other physical and chemical activities; and the dietary fiber powder can be used as a functional food additive which enhances the dietary fiber content of food, and has health care functions of enhancing the moistening intestines, relaxing bowel, satisfying appetite, reducing fat, resisting oxidation, preventing cancer and the like.

Description

technical field [0001] The invention relates to a dietary fiber powder of pitaya peel, which belongs to the field of food technology and functional food additives. Background technique [0002] Dietary fiber (Dietary Fiber, DF) is a general term for plant polysaccharide polymers that can be combined with lignin and other non-sugar compounds, divided into water-soluble dietary fiber (Soluble Dietary Fiber, SDF) and water-insoluble dietary fiber (Insoluble Dietary Fiber, IDF) two categories. IDF mainly acts on the intestinal tract to produce mechanical peristalsis, while SDF exerts more metabolic functions, such as affecting the metabolism of available carbohydrates and lipids. [0003] Although dietary fiber cannot be digested and absorbed in the human body, it has a variety of special functions and physiological effects. Studies have shown that dietary fiber has physiological functions such as promoting gastrointestinal motility, inducing the reproduction of beneficial bac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/308A23L1/212A23L19/00
Inventor 孙丽平张玉锋庄永亮
Owner KUNMING UNIV OF SCI & TECH
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