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Extraction method of nutrients in leaf lettuce

A technology for leaf lettuce and nutrients is applied in the field of extracting nutrients from leaf lettuce, can solve the problems of inconvenient use, low extraction rate, difficult separation, etc., and achieves saving organic solvent, high extraction rate, and mass transfer. fast effect

Active Publication Date: 2013-06-05
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem that there are extracted nutrients in the current extraction method of petroleum ether, the extraction rate is low, it is difficult to separate, it is inconvenient to use, and it brings a lot of inconvenience to the follow-up work

Method used

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Embodiment Construction

[0010] The technical solutions of the present invention will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0011] The embodiments of the present invention are described in further detail below.

[0012] The embodiment of the present invention provides a method for extracting nutrients from leaf lettuce, which can extract nutrients from leaf lettuce, and the method includes:

[0013] Using lettuce for edible leaves as raw materials, the raw materials are dried, crushed and sieved;

[0014] The treated raw materials are subjected to carbon dioxide supercritical extraction according to the set extraction temperature,...

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Abstract

The invention discloses an extraction method of the nutrients in leaf lettuce, which belongs to the extraction of the organic nutrients of plants. The method comprises the steps that: edible leaf lettuce serve as a raw material, is dried, crushed and sieved; carbon dioxide supercritical extraction is carried out to the treated raw material by the set extraction temperature and extraction pressureintensity, and the raw material is separated in the carbon dioxide supercritical extraction at set separation temperature; after carbon dioxide supercritical extraction is started, the separated extract is collected at certain time interval, and the extract which is obtained by collection for twice to three times is the nutrients in the leaf lettuce. According to the method, because carbon dioxide supercritical extraction is adopted, the extraction temperature is low, and the bio-active substances which are extracted do not lose activity; and because no complicated extraction reagent is adopted, the extract is ensured to be purely natural and has no pollution.

Description

Technical field [0001] The invention relates to the field of extraction of nutrients in plants, in particular to a method for extracting nutrients from leaf lettuce. Background technique [0002] Leaf lettuce, because its stems and leaves contain lettuce, has a slightly bitter taste, has the effects of analgesia, hypnosis, cholesterol reduction, and auxiliary treatment of neurasthenia. It has become a spotlight in today's era when everyone is facing great pressure. Nutritional ingredients; leaf lettuce contains effective ingredients such as mannitol, which has the effect of diuresis and promoting blood circulation. It also contains an "interferon inducer" that can stimulate normal human cells to produce interferon, thereby producing an "antiviral protein" to inhibit the virus. At this stage, the research on the compounds in the genus Lettuce has received general attention, especially the extraction methods of the nutrients in leaf lettuce. Although there have been many extractio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/212A23L1/29A23L19/00A23L33/00
Inventor 范双喜李君平韩莹琰李婷任月陈青君刘超杰
Owner BEIJING UNIV OF AGRI
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