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Method for extracting litchi pectin

A pectin and lychee technology, applied in the field of agricultural production, can solve problems such as complicated extraction steps, achieve the effect of maintaining the original color and nutritional content of lychee, and simple operation

Inactive Publication Date: 2016-03-09
刘亚平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the extraction steps of this method are complicated, and only starch is extracted, not pectin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for extracting lychee pectin, comprising the following steps:

[0018] Peel the lychee and soak in the color protection solution, stir, add 3000U / g fructose and 2000U / g cellulase to the precipitate, enzymatically hydrolyze at 30°C for 1h, use 1:3 ethanol at 50°C After extraction for 5 hours, the collected pectin was vacuum-dried at -20°C for 5 hours.

[0019] The raw material lychees need to be lychees produced in Boluo, Huizhou, Guangdong.

[0020] The color protection solution is formulated with citric acid: sodium bisulfate 1:1.

Embodiment 2

[0022] A method for extracting lychee pectin, comprising the following steps:

[0023] Peel the lychees and soak them in the color protection solution, stir them, add 4000U / g of fructose and 3000U / g of cellulase to the precipitate, enzymolyze them at 32°C for 2 hours, use 1:4 ethanol at 55°C After extraction for 7 hours, the collected pectin was vacuum-dried at -22°C for 7 hours.

[0024] The raw material lychees need to be lychees produced in Boluo, Huizhou, Guangdong.

[0025] The color protection solution is formulated with citric acid: sodium bisulfate 1:1.

Embodiment 3

[0027] A method for extracting lychee pectin, comprising the following steps:

[0028] Peel the lychees and soak in the color protection solution, stir, add 5000U / g of fructose and 4000U / g of cellulase to the precipitate, enzymatically hydrolyze at 36°C for 3h, use 1:5 ethanol at 60°C After extraction for 9 hours, the collected pectin was vacuum-dried at -27°C for 7 hours.

[0029] The raw material lychees need to be lychees produced in Boluo, Huizhou, Guangdong.

[0030] The color protection solution is formulated with citric acid: sodium bisulfate 1:1.

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PUM

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Abstract

The invention relates to a method for extracting pectin from litchi pectin, belonging to the technical field of agricultural production. The production method comprises the following steps: peeling litchi, then soaking the peeled litchi in a color protection solution, stirring the litchi, adding 3000-5000U / g of fructozyme and 2000-4000U / g of cellulase to carry out enzymolysis at 30-40 DEG C for 1-4 hours after the litchi is precipitated, then carrying out extraction with ethanol in a ratio of (1 to 3)-(1 to 5) at 50-80 DEG C for 5-12 hours and carrying out vacuum drying on collected pectin at -20 to -30 DEG C for 5-10 hours. The production method is simple to operate, is capable of furthest extracting the litchi pectin, has a color protection function and can achieve the effect of effectively maintaining the primary color and nutrients of the litchi.

Description

technical field [0001] The invention relates to a method for extracting litchi pectin, belonging to the technical field of agricultural production. Background technique [0002] Litchi (formal name used at school: Litchichinensis Sonn.) originates in southern China, is subtropical fruit tree, evergreen tree, about 10 meters high. The peel has scale-like protrusions, bright red, purple. The pulp is translucent and creamy when it is fresh, and has a delicious taste, but it is not resistant to storage. Together with bananas, pineapples and longan, lychees are known as the "four major fruits in the southern country". Litchi is famous for Yang Guifei's favorite food, which made Du Mu write the famous sentence "When a concubine laughs on a ride in the world of mortals, no one knows it is litchi". [0003] The rich sugar contained in lychee can replenish energy, fatigue and other symptoms; lychee meat is rich in vitamin C and protein; lychee has the effect of reducing swelling a...

Claims

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Application Information

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IPC IPC(8): C08B37/06
CPCC08B37/0045
Inventor 刘亚平
Owner 刘亚平
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