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Extractive of phytosterol extracted from bamboo shoot, preparation method and application

A technology of bamboo shoot sterols and extracts, which is applied in the field of deep processing and comprehensive utilization of agricultural and sideline products, and can solve the problems of little understanding of the components and functions of bamboo shoots

Inactive Publication Date: 2006-07-05
ZHEJIANG UNIV HANGZHOU LEAF BIO TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, so far, little is known about the many constituents and functions of bamboo shoots

Method used

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  • Extractive of phytosterol extracted from bamboo shoot, preparation method and application
  • Extractive of phytosterol extracted from bamboo shoot, preparation method and application
  • Extractive of phytosterol extracted from bamboo shoot, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] After peeling the moso bamboo shoots, the bamboo shoots are beaten into a pulp, after squeezed to remove water, dried to a certain extent, and then dried with a microwave to a moisture content of 5%, crushed into 5kg of 20 mesh bamboo husk powder, and put it Put it into the supercritical extraction kettle, heat up to 50℃, start the plunger pump to pump CO 2 , Enter the extraction kettle through the preheater, when the pressure reaches 25MPa, start the cycle; turn on the entrainer pump, so that 10% of the raw material weight ethanol enters the extraction kettle at the same time after passing through the preheater; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and the CO 2 Recycling, separation kettle 1 set separation pressure 8MPa, temperature 40℃, separation kettle 2 set separation pressure 5MPa, temperature 30℃; after 4h extraction, take out 50g extract from separation kettle 1 and 2 to get The rate ...

Embodiment 2

[0062] The husks of the bamboo shoots are sun-dried to a certain extent and then dried with hot air to a moisture content of 5%, crushed into 5kg of 20 mesh bamboo husk powder, and put into the supercritical extraction kettle, heated to 60℃, and activated the plunger pump Pump CO 2 , Enter the extraction kettle through the preheater, and when the pressure reaches 30MPa, the cycle begins; turn on the entrainer pump, so that 10% by volume of acetone enters the extraction kettle at the same time after passing through the preheater; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and the CO 2 Recycling, separation tank 1 is set to separate pressure 8MPa, temperature is 45℃, separation tank 2 is set to separate pressure 5MPa, temperature is 30℃; after 2.5h extraction, 40g of extract is taken out of separation tank 1 and 2, The yield was 0.8%. After low-temperature drying, the bamboo shoot sterol extract was obtaine...

Embodiment 3

[0065] The bamboo shoot heads are sliced ​​and beaten into a pulp. After squeezing to remove water, they are dried to a certain extent, dried with a microwave to a moisture content of 5%, crushed into 20 mesh bamboo shoots powder 6kg, and put it into the supercritical extraction kettle In the middle, the temperature is raised to 45℃, and the plunger is pumped into CO 2 , Enter the extraction kettle through the preheater, when the pressure reaches 20MPa, the cycle starts; during the cycle, CO 2 And the extract is decompressed in the separator, the extract is separated out in the separator, and the CO 2 Recycling, separation tank 1 is set to separate pressure of 6MPa, temperature is 35 ℃, separation tank 2 is set to separate pressure of 5 MPa, temperature is 30 ℃; after extraction for 1 hour, take out 60g of the extract from separation tanks 1 and 2 to obtain The rate was 1.0%. After low-temperature drying, the bamboo shoot sterol extract was obtained; the machine was stopped and th...

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Abstract

This invention publishes a phytosterol extract from bamboo shoots, its preparation method and application. The phytosterol extract from bamboo shoots mentioned in this invention contains 5~50% sterols, 10~40% of which is beta-sitosterol. The ratio between beta-sitosterol, stigmasterol and campesterol is 10~40:1~3:2~5. The phytosterol extract from bamboo shoots mentioned in this invention performs significant anti-inflammatory and leukemia histiocytosis inhibitory activities and is thus applicable in cosmetics, foods, health products and medicines.

Description

Technical field [0001] The invention relates to the field of deep processing and comprehensive utilization of agricultural and sideline products. More specifically, it relates to a phytosterol extract extracted from bamboo shoots, and a preparation method and use thereof. Background technique [0002] Bamboo is a Gramineae perennial evergreen plant. There are more than 70 genera and more than 1,200 species in the world. Bamboo forests cover an area of ​​about 20 million hectares (300 million mu). Southeast Asia and nearby islands are the center of bamboo distribution in the world. my country is located in the central area of ​​bamboo distribution in the world. It is a major bamboo-producing country in the world. It is known as the "Bamboo Kingdom". It has very rich bamboo resources. It has a bamboo forest area of ​​about 4 million hectares and an annual output of 2.5 million tons of bamboo shoots. Among them, the area of ​​Phyllostachys pubescens, which has a higher economic valu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J9/00A61K31/56A61K8/97A61P29/00A61P35/00A23L1/30A23L33/11
Inventor 张英陆柏益吴晓琴梁艳
Owner ZHEJIANG UNIV HANGZHOU LEAF BIO TECH
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