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A microwave-assisted method for extracting hydrangea polysaccharides

A microwave-assisted hydrangea technology, applied in the food field, can solve the problems of high energy consumption, limited yield of polysaccharides, and high energy consumption in the drying process, and achieve the effects of overcoming drying and dehydration, controllable process conditions, and high extraction rate of polysaccharides

Active Publication Date: 2021-08-20
福建万菇生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there are many studies on the extraction of polysaccharides in Hydrangea. The usual method is to grind fresh Hydrangea into bacterial powder through hot air or freeze-drying, and then extract it with hot water or lye. The yield of polysaccharides extracted is limited, and High energy consumption in the drying process
In addition, due to the high drying temperature of hot air drying, on the one hand, it consumes a lot of energy. On the other hand, the hot air drying temperature is high. High temperature may destroy the active substances in Hydrangea and affect the extraction rate of polysaccharides in Hydrangea.
Although freeze-drying has mild conditions and can better retain the active substances in hydrangea, the drying efficiency is low and the cost is high, so it is not suitable for large-scale production applications

Method used

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  • A microwave-assisted method for extracting hydrangea polysaccharides

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Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 of the present invention provides a kind of technology that microwave-assisted method extracts Hydrangea polysaccharide, comprises the following steps:

[0039] (1) Take fresh hydrangea, wash with water and drain;

[0040] (2) Dehydrate the fresh hydrangea through a screw extrusion dehydrator to remove 80% of the water in the fresh hydrangea;

[0041] (3) Grinding the dehydrated hydrangea to a particle size of 10-20mm;

[0042] (4) Take 50 g of crushed hydrangea, add cellulase and pure water to obtain a mixture, add a pH regulator to adjust the pH to 4.7, and then conduct microwave treatment. The mass ratio of hydrangea to pure water in the mixture is 1:20, Cellulase accounts for 1.5% of the total weight of the mixture, the microwave treatment frequency is 800MHZ, the power is 400W, and the microwave treatment is 20min to obtain the hydrangea crude polysaccharide extract;

[0043] (5) After inactivating the hydrangea crude polysaccharide extract, centrifu...

Embodiment 2

[0045] Embodiment 2 of the present invention provides a process for extracting hydrangea polysaccharides by a microwave-assisted method, comprising the following steps:

[0046] (1) Take fresh hydrangea, wash with water and drain;

[0047] (2) Dehydrate the fresh hydrangea through a screw extrusion dehydrator to remove 75% of the water in the fresh hydrangea;

[0048] (3) Grinding the dehydrated hydrangea to a particle size of 10-20 mm;

[0049] (4) Take 50 g of crushed hydrangea, add cellulase and pure water to obtain a mixture, add a pH regulator to adjust the pH to 5.2, and then conduct microwave treatment. The mass ratio of hydrangea to pure water in the mixture is 1:30, Cellulase accounts for 2.1% of the total weight of the mixture, the microwave treatment frequency is 800MHZ, the power is 500W, and the microwave treatment is 15min to obtain the hydrangea crude polysaccharide extract;

[0050](5) After inactivating the hydrangea crude polysaccharide extract, centrifuge ...

Embodiment 3

[0052] Embodiment 3 of the present invention provides a process for extracting hydrangea polysaccharides by a microwave-assisted method, comprising the following steps:

[0053] (1) Take fresh hydrangea, wash with water and drain;

[0054] (2) Dehydrate the fresh hydrangea through a screw extrusion dehydrator to remove 81% of the water in the fresh hydrangea;

[0055] (3) Grinding the dehydrated hydrangea to a particle size of 10-20mm;

[0056] (4) Take 50 g of crushed hydrangea, add cellulase and pure water to obtain a mixture, add a pH regulator to adjust the pH to 5.5, and then conduct microwave treatment. The mass ratio of hydrangea to pure water in the mixture is 1:40, Cellulase accounts for 2.7% of the total weight of the mixture, the microwave treatment frequency is 800MHZ, the power is 600W, and the microwave treatment is 10min to obtain the hydrangea crude polysaccharide extract;

[0057] (5) After inactivating the hydrangea crude polysaccharide extract, centrifuge ...

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Abstract

The invention discloses a process for extracting hydrangea polysaccharides by a microwave-assisted method, which comprises the following steps: dehydrating fresh hydrangea through physical extrusion; crushing the dehydrated hydrangea; taking the crushed hydrangea coccus, add cellulase, pure water to obtain a mixed solution, add a pH regulator to adjust the pH to 4.5~5.5, and then carry out microwave treatment to obtain the crude polysaccharide extract of Hydrangea; After drying, the hydrangea crude polysaccharide is obtained. A microwave-assisted method for extracting hydrangea polysaccharides according to the present invention is to dehydrate by physical extrusion before polysaccharide extraction, which overcomes the disadvantages of drying and dehydration in the prior art; at the same time, it adopts enzymatic hydrolysis and microwave-assisted method to extract polysaccharides, The process conditions are controllable, and the polysaccharide extraction rate is high.

Description

technical field [0001] The invention relates to the field of food technology, [0002] In particular, the present invention relates to a technique for extracting hydrangea polysaccharides by a microwave-assisted method. Background technique [0003] Hydrangea, also known as lotus fairy mushroom and petal velvet, its fruiting body is white or milky yellow, plump like a hydrangea, exquisite like petals, crystal clear, white and tender. Due to the scarcity of its natural wild resources and the difficulty of artificial cultivation, it is known as the "King of Mushrooms" and is one of the most valuable edible and medicinal fungi in the world. Because of its super high ability to activate immunity, it is known as "dream magic mushroom" in Japan. Common mushrooms grow in the shade, but hydrangea mushrooms need more than 10 hours of sunlight every day, and are the only "sunshine mushrooms" in the world. [0004] The biggest feature of hydrangea is that it contains a large amount ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/02
CPCC08B37/0003C08B37/0024
Inventor 王国强陈美英何绍东
Owner 福建万菇生物科技有限公司
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