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Obtaining sap of fresh plants and their cosmetic and therapeutic uses by thermothermal treatment

A deformation heat treatment, plant technology, applied in cosmetics, cosmetic preparations, medical raw materials derived from angiosperms, etc., can solve the problem of not mentioning deformation heat treatment, etc.

Active Publication Date: 2018-08-03
PIERRE FABRE DERMO COSMETIQUE CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

which does not mention thermomechanical treatment

Method used

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  • Obtaining sap of fresh plants and their cosmetic and therapeutic uses by thermothermal treatment
  • Obtaining sap of fresh plants and their cosmetic and therapeutic uses by thermothermal treatment
  • Obtaining sap of fresh plants and their cosmetic and therapeutic uses by thermothermal treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] After a growth period of 2 months (oat seedlings), 12.75 kg of unfrozen (24 h at 2° C.) fresh above-ground parts of oats (Avena sativa L.) harvested by harvester were fed into The first barrel of a five-barrel twin-screw extruder with rotating, co-rotating osmotic screws—CLEXTRAL BC45. The temperature applied to different barrels is 30°C / 120°C / 120°C / 120°C / 60°C.

[0088] The protocol of the method is as follows (total duration of extrusion steps = 20 min; treatment rate: 38 kg plants / hour and 22 kg juice / hour)

[0089]

[0090] After extrusion, 57.2% juice w / w relative to the starting material was obtained. Then, clarification and filtration steps were carried out to obtain clarified juice with a final juice yield of 53.1% containing 11% dry matter, ie a yield of extracted dry matter of 5.8% (w / w).

[0091] The juice yield by pressing (mash-press-filter) the same raw material was 50% with 4.5% dry matter, ie a yield of 2.25% (w / w).

[0092] Thus, the extrusion tech...

Embodiment 2

[0098] 3.14 kg of unfrozen (18 h at 2 °C) corolla of fresh Echinacea purpurea (Echinacea purpurea (L.) Moench) were fed into a five-barrel twin-screw extruder with co-rotating, co-rotating osmotic screws. Exit machine—the first barrel of CLEXTRAL BC45. The temperature applied to different barrels is 100°C / 100°C / 100°C / 100°C / 60°C. The process and mass balance are given in the table below (total time of extrusion step: 25 minutes; treatment rate: 7 kg plant / hour and 3 kg juice / hour):

[0099] Material Balance

process

dry matter

100

fresh plants

48.1

extrude

16.20％

26.9

clarification

10.81％

25

filter

10.09％

[0100] Thus, after extrusion we obtained 48.1% juice w / w relative to the starting material. Clarification and filtration steps were then performed to obtain clarified juice with a final juice yield of 25% containing 10.09% dry matter, ie a yield of 2.5% (w / w) dry matter.

[0101] The caffeic acid co...

Embodiment 3

[0111] 5.11 kg of unfrozen (20 h at 2° C.) fresh, above-ground parts of lemon balm (Melissa oficinalis L.) were fed into a five-barrel twin-screw with co-rotating and co-rotating osmotic screws Extruder - first barrel of CLEXTRAL BC45. The temperature applied to different barrels is 120°C / 120°C / 120°C / 120°C / 60°C. The process and mass balance are given in the table below (total duration of the extrusion step: 7 minutes; treatment rate: 46 kg plant / hour and 29 kg juice / hour):

[0112]

[0113] Under these conditions, extrusion allowed to obtain a juice with a yield close to 50% and with a dry matter content of 6.5%. In particular, this substance contains rosmarinic acid, which is usually extracted by a hydroalcoholic mixture, such as 70% ethanol). The content of rosmarinic acid in the dry matter extracted by extrusion without any organic solvent was 2.4% (w / w), ie comparable to 70% ethanol extraction.

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Abstract

The present invention relates to a process for obtaining a juice of fresh plants, characterized in that said fresh plants, with the exclusion of the seeds only, are subjected to a thermomechanical treatment consisting in extruding the fresh plants in an extruder, combined with a heat treatment which makes it possible to inactivate the endogenous enzymes and to preserve the molecules of compounds of interest in the native form thereof, in the absence of solvent, followed by a juice recovery operation.

Description

technical field [0001] The present invention relates to a method for obtaining the juice of fresh plants, wherein said fresh plants, excluding only the seeds, are subjected to a solvent-free thermomechanical treatment followed by a juice recovery operation. Background technique [0002] A widely described method of obtaining juice from fresh plants is the pressing method, or grinding and centrifugation. [0003] Patent EP0279984 describes the cosmetic use of juices from grasses obtained after extraction by crushing, broyage and / or concassage of the plants. [0004] In addition to fruit juices, medicinal plant juices are also produced (eg monographie EMEA Echinacée EMEA / HMPC / 104945 / 2006). [0005] Some techniques are aimed at enhancing the extraction of membrane components, such as the "Flash Détente" technique commonly used in grapes, which allows enhanced extraction of anthocyanins. [0006] Process for obtaining whole fresh plant suspensions (Suspension intégrale de plan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/105A23L11/00A23L19/00A23N1/00A23L2/00A23L2/02A23L2/38A23L2/385A61Q19/00A61K8/97A61K36/00A61P17/00
CPCA23N1/02A61K36/11A23L33/105A23P30/20A23L2/04A61K36/185A61K36/28A61K36/45A61K36/53A61K36/9066A61K36/9068A61K2236/00A61K2800/10A61Q19/00A61K8/9741A61K8/9789A61K8/9794A61P17/00A61K8/9783A23L2/72A23V2002/00A61K8/04A61K8/11A61K9/0014A61K9/0053A61K9/06A61K9/48A61K36/18A61K36/68A61K36/899A61K2236/31A61K2236/37
Inventor A·曼杜亚C·塔隆
Owner PIERRE FABRE DERMO COSMETIQUE CORP
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