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Extraction method of nutrients in leaf lettuce

A technology for leaf lettuce and nutrients, which is applied in the field of extracting nutrients from leaf lettuce, can solve problems such as inconvenience to use, difficult to separate, and inconvenient to work, and achieves organic solvent saving, fast mass transfer, and low cost. Effect

Active Publication Date: 2012-06-13
BEIJING UNIV OF AGRI
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  • Abstract
  • Description
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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 in the present invention will be clearly and completely described below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

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

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

[0013] Taking edible leaf lettuce as raw material, drying, crushing and sieving the raw material;

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

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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 extracting nutrients in plants, in particular to a method for extracting nutrients from leaf lettuce. Background technique [0002] Leaf lettuce, because the stems and leaves contain lettuce, so the taste is slightly bitter, and it has the effects of analgesic hypnosis, lowering cholesterol, and auxiliary treatment of neurasthenia. Nutrients; leaf lettuce contains active ingredients such as mannitol, which has the effect of diuresis and promoting blood circulation. It also contains an "interferon inducer", which can stimulate the normal cells of the human body to produce interferon, thereby producing an "antiviral protein" to inhibit the virus. At this stage, the research on the compounds in Lactuca has received widespread attention, especially the extraction method of nutrients in leaf lettuce. Although there have been many extraction schemes before, most of them are extracted with reagents, such as petroleum eth...

Claims

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Application Information

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Patent Type & Authority Applications(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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