Silkworm pupa oil and extracting method and applications

An extraction method and technology of silkworm chrysalis oil, which are applied in the directions of application, production/processing of edible oil/fat, metabolic diseases, etc., can solve the problems of high cost of special equipment, etc., and achieve a structure that is convenient for mass production, protects the double health, and shortens the extraction time. effect of time

Inactive Publication Date: 2008-10-08
ZHEJIANG UNIV CITY COLLEGE
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  • Silkworm pupa oil and extracting method and applications

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Embodiment 1

[0029] 1. Microwave extraction: Silkworm chrysalis powder: absolute ethanol (mass: volume) is 1:3 to 1:7, generally 1:5. Add 5.6-22.4 grams of potassium hydroxide per 1000ml of absolute ethanol and put it into a microwave extraction tank. Reaction conditions: 400W-550W, 40-70°C, 20-40min. Suction filtration, rotary evaporation of excess ethanol under reduced pressure, move the reactant to a separatory funnel, add dilute hydrochloric acid of PH=1 to neutralize the excess alkali, and adjust the pH value to neutrality, then use hot saturated sodium chloride solution (temperature 30-40°C or so) to wash away the glycerin. Add anhydrous sodium sulfate to dehydrate and dry to obtain mixed fatty acid ethyl esters.

[0030] 2. Urea clathrate: add a certain proportion of urea-ethanol (100ml ethanol can dissolve 10g urea) saturated solution of mixed fatty acid ester, fatty acid: urea: ethanol is about 1:1:10 (v:m:v). Stir evenly and reflux for 40 minutes; after cooling to room temperat...

Embodiment 2

[0032] 1. Microwave extraction: silkworm chrysalis powder: absolute ethanol (mass: volume) is 1:5, 11.2 grams of potassium hydroxide can be added to every 1000ml of absolute ethanol, and put into a microwave extraction tank. Reaction conditions: 400W~550W, 60 ℃, 20min. Suction filtration, rotary evaporation of excess ethanol under reduced pressure, move the reactant to a separatory funnel, add dilute hydrochloric acid of PH=1 to neutralize the excess alkali, and adjust the pH value to neutrality, then use hot saturated sodium chloride solution (temperature 30-40°C or so) to wash away the glycerin. Add anhydrous sodium sulfate to dehydrate and dry to obtain mixed fatty acid ethyl esters.

[0033] 2. Urea clathrate: add a certain proportion of urea-ethanol (100ml ethanol can dissolve 10g urea) saturated solution of mixed fatty acid ester, fatty acid: urea: ethanol is about 1:1:10 (v:m:v). Stir evenly and reflux for 40 minutes; after cooling to room temperature, place at 0°C fo...

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Abstract

The invention provides silkworm pupa oil, an extracting method and an application thereof. The silkworm pupa oil consists of the following components with the weight percentage of 0.2 percent of hexadecanoic acid, 1.0 percent of palmitoleic acid, 27.2 percent of oleic acid, 10.7 percent of linoleic acid, 54.6 percent of alpha-linolenic acid and 6.3 percent of other unsaturated acids. The extracting method of the silkworm pupa oil extracts unsaturated fatty acid in the silkworm pupas by a method which combines a microwave extracting technology and urea clathration. The application of the silkworm pupa oil is that the silkworm pupa oil is applied to effectively reducing the blood sugar and the level of diabetic and is especially used for preventing and curing the diabetes. The silkworm pupa oil has the advantages of shortening extracting time, reducing energy consumption, reducing solvent dosage, improving the content of necessary fatty acid and especially the content of the alpha-linolenic acid in the silkworm pupa which benefit human body, reducing the oxidative damage to the unsaturated fatty acid, protecting a double-health structure, economic and simple extracting method, being grasped easily, being convenient for realizing industrialized mass production, the more outstanding pharmacological action of the silkworm pupa oil represented in the aspect of reducing blood sugar, etc.

Description

technical field [0001] The present invention relates to silkworm chrysalis oil made from silkworm chrysalis and its extraction method and application, and belongs to the technical field of new pharmacological applications Background technique [0002] In the "Dictionary of Traditional Chinese Medicine", it is recorded as follows: silkworm chrysalis oil can cure malnutrition fever, weight loss, and thirst in children; silkworm chrysalis oil is rich in various amino acids, trace elements and n-3 and n-6 ​​series polyunsaturated fatty acids, especially containing Polyunsaturated fatty acids necessary for the human body. At present, the development and research of silkworm chrysalis oil is more focused on reducing plasma and cholesterol, improving liver function, increasing the production of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the body, And it has the functions of adjusting blood lipid and anti-oxidation; at the same time, silkworm chrysalis contains a...

Claims

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Application Information

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IPC IPC(8): A23L1/313A23D7/02A23L1/29A61K35/64A61P3/10A23L13/30A23L33/00
Inventor 陈伟平朱奎奎赵灏
Owner ZHEJIANG UNIV CITY COLLEGE
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