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Method for extracting essential oil from folium premnae microphyllae

A technology of bean curd leaves and essential oils, applied in the direction of essential oils/spices, fat production, etc., can solve the problems of unreported, low extraction rate, etc., achieve the effect of simple process equipment, convenient operation, and improved antioxidant performance

Inactive Publication Date: 2017-09-22
黄山森林之宝生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the other two methods, although the extraction rate of alkaline extraction method is lower, it has stronger antioxidant activity
[0009] The above studies mainly focused on the extraction of pectin from Tofu Chai, but the research on the extraction of essential oil from Tofu Chai leaves has not been reported. Research

Method used

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  • Method for extracting essential oil from folium premnae microphyllae
  • Method for extracting essential oil from folium premnae microphyllae

Examples

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Effect test

Embodiment 1

[0028] A method for extracting essential oil from bean curd leaves, comprising the following steps:

[0029] A. Clean and air-dry the tofu chai leaves, crush them for later use;

[0030] B, soak 32h to raw material bean curd firewood leaf with pure water;

[0031] C. Heating in a boiling water bath, stirring continuously during the heating process, and constantly replenishing with distilled water to keep the volume constant, resulting in an oil-water mixture;

[0032] D. Concentrate the oil-water mixture to 12% of the original volume and condense it to 38°C, add an appropriate amount of trypsin hydrolysis solution, and perform constant temperature enzymolysis for 25 minutes;

[0033] E. Boil in a boiling water bath at 100°C for 5 minutes to inactivate trypsin;

[0034] F, oil-water separation to obtain crude oil of bean curd wood leaf oil;

[0035] G. Add an appropriate amount of powdered tartaric acid and stir, leave for more than 12 hours, filter and clarify into essentia...

Embodiment 2

[0039] A method for extracting essential oil from bean curd leaves, comprising the following steps:

[0040] A. Clean and air-dry the tofu chai leaves, crush them for later use;

[0041] B, soak 36h to raw material bean curd firewood leaf with pure water;

[0042] C. Heating in a boiling water bath, stirring continuously during the heating process, and constantly replenishing with distilled water to keep the volume constant, resulting in an oil-water mixture;

[0043] D. Concentrate the oil-water mixture to 10% of the original volume and condense it to 40°C, add an appropriate amount of trypsin hydrolysis solution, and perform constant temperature enzymatic hydrolysis for 20 minutes;

[0044] E. Boil in a boiling water bath at 100°C for 8 minutes to inactivate trypsin;

[0045] F, oil-water separation to obtain crude oil of bean curd wood leaf oil;

[0046] G. Add an appropriate amount of powdered tartaric acid and stir, leave for more than 8 hours, filter and clarify into ...

Embodiment 3

[0050] A method for extracting essential oil from bean curd leaves, comprising the following steps:

[0051] A. Clean and air-dry the tofu chai leaves, crush them for later use;

[0052] B. Soak the raw material bean curd leaves with pure water for more than 28 hours;

[0053]C. Heating in a boiling water bath, stirring continuously during the heating process, and constantly replenishing with distilled water to keep the volume constant, resulting in an oil-water mixture;

[0054] D. Concentrate the oil-water mixture to 15% of the original volume and condense it to 35°C, add an appropriate amount of trypsin hydrolysis solution, and perform constant temperature enzymatic hydrolysis for 30 minutes;

[0055] E. Boil in a boiling water bath at 100°C for 3 minutes to inactivate trypsin;

[0056] F, oil-water separation to obtain crude oil of bean curd wood leaf oil;

[0057] G. Add an appropriate amount of powdered tartaric acid and stir, leave for more than 16 hours, filter and ...

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Abstract

The invention discloses a method for extracting essential oil from bean curd leaves. The present invention fills the gap in the current utilization of bean curd leaves and provides a method for extracting essential oils from bean curd leaves with simple process equipment and convenient operation. The method On the basis of the traditional essential oil extraction method, trypsin hydrolyzate is added. Since trypsin hydrolyzate is the most specific protease, adding a small amount of trypsin hydrolyzate can not only improve the antioxidant activity of essential oils, but also prevent Affect other active ingredients in essential oils, safe, healthy and efficient.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a method for extracting essential oil from bean curd leaves. Background technique [0002] Tofu Chai, Tofu Chai generally germinates in mid-April, buds begin to conceive in mid-May, and bloom and bear fruit one after another. The fruiting period is from late June to mid-July, and matures gradually from bottom to top. The mature fruits are not easy to fall off and can be kept forever By October, all the leaves will wither and fall in late October. The growth period is 120 days, and the growth period is about 185 days. [0003] Morphological characteristics: Tofu wood, erect shrub, vegetation height 2-6m. Young branches pilose, old branches gradually glabrous, old branches gradually glabrous. Single leaves opposite; petiole 0.5-2cm long; leaf blade ovate-lanceolate, obovate, elliptic or shaped, smelly, 3-13cm long, 1.5-6cm wide, base gradually narrow, entire or with irr...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/02
Inventor 吴季生
Owner 黄山森林之宝生物科技有限公司
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