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A kind of tea seed dietary fiber and preparation method thereof

A technology for dietary fiber and tea seeds, which is applied to the field of tea seed dietary fiber and its preparation, can solve the problems of not being separated and applied, and the water-holding capacity and adsorption capacity of dietary fibers are decreased, so as to facilitate industrial production, and have strong water-holding capacity and adsorption capacity. , the effect of simple preparation process

Active Publication Date: 2018-04-13
贵州绿色农业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Tea seeds are rich in cellulose, hemicellulose, lignin and polysaccharides that cannot be digested by the human body, but they have not been isolated and applied
Commonly used dietary fiber extraction methods include acid-base extraction, enzyme extraction, and fermentation. However, a multi-step process is required to remove components such as protein, fat, reducing sugar, and starch, resulting in significant water holding capacity and adsorption capacity of dietary fiber. decline

Method used

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  • A kind of tea seed dietary fiber and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] Take 1 kg of commercially available degreased camellia oleifera meal in an extraction tank, add 10 L of ethanol aqueous solution with a volume fraction of 70%, reflux extraction at 70°C for 3 hours, filter, and distill ethanol from the filter residue at 90°C until there is no alcohol smell; Add 30L of hot water at 100°C to the extraction device, control the pressure of the extraction device, and raise the temperature to 150°C (heating time is 15 minutes) with the assistance of ultrasound (ultrasonic frequency 40kHz, ultrasonic power 150W), heat preservation and extraction for 30 minutes, and extract The extraction pressure in the process is 15MPa; then the extract is filtered to obtain the extracted filter residue and water extract; finally, the water extract is concentrated and dried (the temperature of concentration and drying is 60°C, and the drying time is 8h) to obtain tea seed meal 196g of water-soluble dietary fiber; the filter residue was dried and pulverized (th...

Embodiment 2

[0026] Take 1 kg of commercially available defatted tea seed dregs in an extraction tank, add 15 L of ethanol aqueous solution with a volume fraction of 90%, reflux at 60°C for 2 hours, filter, and distill the ethanol from the filter residue at 80°C until there is no alcohol smell; Add 15L of 100°C hot water to the extraction device, control the pressure of the extraction device, and under the assistance of ultrasound (ultrasonic frequency 20kHz, ultrasonic power 200W), the temperature is raised to 250°C (heating time is 30 minutes), and the heat preservation is extracted for 15 minutes. During the extraction process, the extraction pressure is 5MPa; then the extract is filtered to obtain the extracted filter residue and water extract; finally, the water extract is concentrated and dried (the temperature of concentration and drying is 80°C, and the drying time is 4h), and tea seeds are obtained 215g of meal water-soluble dietary fiber; the filter residue was dried and pulverize...

Embodiment 3

[0028] Take 1 kg of commercially available degreased camellia oleifera meal in an extraction tank, add 12 L of ethanol aqueous solution with a volume fraction of 85%, reflux extraction at 65° C. for 1 hour, filter, and distill ethanol from the filter residue at 80° C. until there is no alcohol smell; Add 20L of 100°C hot water to the extraction device, control the pressure of the extraction device, and raise the temperature to 200°C (heating time is 20 minutes) with the assistance of ultrasound (ultrasonic frequency 30kHz, ultrasonic power 200W), heat preservation and extraction for 20 minutes, and extract The extraction pressure in the process is 10MPa; then the extract is filtered to obtain the extracted filter residue and water extract; finally, the water extract is concentrated and dried (the temperature of concentration and drying is 70°C, and the drying time is 5h) to obtain tea seeds 237g of meal water-soluble dietary fiber; the filter residue was dried and pulverized (t...

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Abstract

The invention relates to the field of health-care foods, and discloses tea seed dietary fibers and a preparation method thereof. The preparation method comprises the following steps of firstly performing regurgitation and extraction on the raw material namely degreased tea seed meal with ethanol water, and performing filtration so as to obtain filter residues and ethanol water extraction liquid; distilling the filter residues to remove alcohol until no smell of alcohol exists; then, performing progressive heating extraction on the distilled filter residues with subcritical water under ultrasonic assistance; filtering the extraction liquid so as to obtain new filter residues and new water extraction liquid; concentrating and drying the water extraction liquid so as to obtain the tea seed meal water-soluble dietary fibers; and drying the filter residues, and crushing the dried filter residues so as to obtain the tea seed meal water-insoluble dietary fibers. The obtained tea seed dietary fibers disclosed by the invention are high in content, good in retention ability and large in adsorption quantity to cholesterol. The preparation technology is pollution-free, so that the tea seed dietary fibers are suitable for industrialized production.

Description

technical field [0001] The invention belongs to the field of health food, and in particular relates to a tea seed dietary fiber and a preparation method thereof. Background technique [0002] Dietary fiber refers to the general term of polysaccharide carbohydrates and lignin that are not digested by the human body, and can be divided into two categories: water-soluble dietary fiber and water-insoluble dietary fiber. It has many functions such as improving intestinal health, lowering serum cholesterol, controlling blood sugar, losing weight, preventing colon cancer, high blood pressure, heart disease, arteriosclerosis, and removing harmful substances from exogenous sources. It is called the "seventh nutrient". Dietary fiber comes from a wide range of sources, but dietary fiber from different sources has certain differences in water holding capacity and adsorption capacity. Dietary fiber with high water holding capacity and high adsorption capacity for cholesterol has better ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/21
CPCA23V2002/00A23V2250/5116A23V2300/14A23V2300/48
Inventor 叶勇全金花
Owner 贵州绿色农业开发有限公司