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Method for extracting natural food antioxidant from plants

A natural food and antioxidant technology, applied in the field of food additives, to achieve the effects of low energy consumption, high quality and simple equipment

Inactive Publication Date: 2011-02-16
SHANGHAI CHUANGBO FOOD TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the thousands of food additives currently used, more than 80% are chemically synthesized. As food safety issues increasingly become the focus of global attention, chemically synthesized food additives are facing severe challenges due to various safety problems. predicament

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Select sea-buckthorn fruits free from insects and moths, remove impurities, rinse the selected sea-buckthorn fruits with clean water, and dry them for later use. The sea buckthorn fruit is pulverized by an NK-532 pulverizer and then passed through a 40-mesh sieve, and the obtained powder is placed in a dry environment for later use. Take the above seabuckthorn granules according to the material-to-liquid ratio of 1:4, the extraction solution is 50vol% ethanol, and the soaking time is 1h; the extraction temperature is 20°C, the microwave frequency is 915MHz, the extraction time is 1h, and the extraction is performed once. A tan semisolid solution was obtained. The above solution was passed through a TD5GL centrifuge to remove the residue, the filter cloth was 1 μm, the rotation speed was 3000 rpm, and the centrifugation time was 5 minutes to obtain a yellow-brown liquid. The above liquid was concentrated by a RE-52 rotary evaporator at a temperature of 50° C. and a conc...

Embodiment 2

[0022] Choose roxburghii fruit free from moths and moths, remove impurities, rinse the selected roxburghii fruit with clean water, and dry it for later use. The roxburghii fruit is crushed by an NK-532 pulverizer and then passed through a 60-mesh sieve, and the obtained powder is placed in a dry environment for subsequent use. Take the above Rosa roxburghii granules according to the solid-liquid ratio of 1:5, the extraction solution is 95vol% ethanol, the soaking time is 2h; the extraction temperature is 40°C, the microwave frequency is 1515MHz, the extraction time is 1.5h, and the extraction is performed once. A tan semisolid solution was obtained. The above solution was passed through a TD5GL centrifuge to remove the residue, the filter cloth was 1 μm, the rotation speed was 3000 rpm, and the centrifugation time was 5 minutes to obtain a yellow-brown liquid. The above liquid was concentrated by a RE-52 rotary evaporator at a temperature of 50° C. and a concentration time of...

Embodiment 3

[0024] Choose roxburghii fruit free from moths and moths, remove impurities, rinse the selected roxburghii fruit with clean water, and dry it for later use. The roxburghii fruit is crushed by an NK-532 pulverizer and then passed through an 80-mesh sieve, and the obtained powder is placed in a dry environment for subsequent use. Take the above Rosa roxburghii granules according to the solid-liquid ratio of 1:6, the extraction solution is 50vol% ethanol, the soaking time is 3h; the extraction temperature is 60°C, the microwave frequency is 2450MHz, the extraction time is 2h, and the extraction is performed once. A tan semisolid solution was obtained. The above solution was passed through a TD5GL centrifuge to remove the residue, the filter cloth was 1 μm, the rotation speed was 3000 rpm, and the centrifugation time was 5 minutes to obtain a yellow-brown liquid. The above liquid was concentrated by a RE-52 rotary evaporator at a temperature of 50° C. and a concentration time of ...

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PUM

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Abstract

The invention provides a method for extracting a natural food antioxidant from plants, which is characterized by comprising the following steps: selecting singli roxbrugh rose fruit or seabuckthorn without worms and worm holes, removing the impurities and airing the singli roxbrugh rose fruit or seabuckthorn for later use after washing the singli roxbrugh rose fruit or seabuckthorn with clear water; after grinding the singli roxbrugh rose fruit or seabuckthorn with a grinder, sieving the ground singli roxbrugh rose fruit or seabuckthorn with a sieve and placing the obtained powder in the dry environment for later use; adding the powder to ethanol and carrying out microwave extraction to obtain tawny semi-solid solution; after centrifuging the solution, filtering the solution to remove the residues to obtain tawny liquid; concentrating the liquid with a rotary evaporator and recovering the ethanol to obtain dark tawny liquid; and freeze-drying the liquid to obtain faint yellow powder, namely the natural food antioxidant. The method has the advantages of effectively protecting the functional components in the food and lowering the extraction cost.

Description

technical field [0001] The invention relates to a method for extracting natural food antioxidants from plants, belonging to the technical field of food additives. Background technique [0002] Benefiting from the stable and sustainable development of the food industry, the food additive industry is also developing steadily and rapidly. At present, there are more than 5,000 kinds of food additives actually used in the world, and the annual trade volume exceeds 20 billion US dollars, and it is increasing at a relatively fast rate. It has become one of the most vigorous and dynamic fields in the food industry. Among the thousands of food additives currently used, more than 80% are chemically synthesized. As food safety issues increasingly become the focus of global attention, chemically synthesized food additives are facing severe challenges due to various safety problems. dilemma. How to get out of the predicament has become a difficult problem to be solved for all people en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/28A23L3/3472A23L33/105
Inventor 江瀚
Owner SHANGHAI CHUANGBO FOOD TECH DEV
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