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Pretreatment method for pectin of lemon peels

A technology of lemon peel pectin and lemon peel, which is applied in the field of pretreatment of lemon peel pectin, can solve the problems of large power consumption, processing, and complicated process, and achieve improved product quality and processing effect, reasonable process design, and processing effect Good results

Active Publication Date: 2019-04-02
广州市莱檬生物科技有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not deal with impurities such as essential oils in the raw materials, and the process is complicated and consumes a lot of power, so it cannot be used for efficient and simple pretreatment of pectin raw materials
[0005] In summary, the prior art still lacks an efficient pectin pretreatment method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) crushing; 2 tons of lemon peels are broken and stirred, and the lemon peels are broken into particles of 1.5cm particle size, and then transferred to 10 tons of processing tanks,

[0031] (2) Adding water: adding 7 tons of water at 60°C to the leather dregs particles obtained in step (1) while stirring, and mixing evenly;

[0032] (3) Enzymolysis: Add 2kg of Novozymes Celluclast1.5L cellulase to the mixture obtained in step (2) while stirring, add sodium bicarbonate to adjust the pH to 7.2, treat for 1 hour, and control the reaction temperature to 32 ℃, then add 2kg subtilisin, 8kg α-amylase, 1kg Novozymes Palatase 20000L lipase, add sodium bicarbonate to adjust the pH to 8, the reaction time is 5h, and the reaction temperature is controlled at 36℃.

[0033] (4) Screening: the mixture obtained in step (3) is separated by a wire mesh separator to separate skin dregs particles, and the mesh number of the wire mesh separator is 40 orders;

[0034] (5) extruding: the s...

Embodiment 2

[0039] The difference between this example and Example 1 is that 1kg of Novozymes Palatase 20000L lipase was not added during enzymolysis, as follows:

[0040] A method for pretreatment of lemon peel pectin, comprising the following processing steps:

[0041] (1) crushing; 2 tons of lemon peels are broken and stirred, and the lemon peels are broken into particles of 1.5cm particle size, and then transferred to 10 tons of processing tanks,

[0042] (2) Adding water: adding 7 tons of water at 60°C to the leather dregs particles obtained in step (1) while stirring, and mixing evenly;

[0043] (3) Enzymolysis: Add 2kg of Novozymes Celluclast1.5L cellulase to the mixture obtained in step (2) while stirring, add sodium bicarbonate to adjust the pH to 7.2, treat for 1 hour, and control the reaction temperature to 32 ℃, then add 2kg subtilisin, 8kg α-amylase, add sodium bicarbonate to adjust the pH to 8, the reaction time is 5h, and the reaction temperature is controlled to be 36°C;

...

Embodiment 3

[0049] The difference between this embodiment and Example 1 is that the amount of each enzyme used during enzymolysis is different, as follows:

[0050] (1) crushing; 2 tons of lemon peels are broken and stirred, and the lemon peels are broken into particles of 1.5cm particle size, and then transferred to 10 tons of processing tanks,

[0051] (2) Adding water: adding 7 tons of water at 60°C to the leather dregs particles obtained in step (1) while stirring, and mixing evenly;

[0052] (3) Enzymolysis: Add 2kg of Novozymes Celluclast1.5L cellulase to the mixture obtained in step (2) while stirring, add sodium bicarbonate to adjust the pH to 7.2, treat for 1 hour, and control the reaction temperature to 32 ℃, then add 2kg subtilisin, 2kg α-amylase, 2kg Novozymes Palatase 20000L lipase, add sodium bicarbonate to adjust the pH to 8, the reaction time is 5h, and the reaction temperature is controlled at 36°C.

[0053] (4) Screening: the mixture obtained in step (3) is separated by...

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Abstract

The invention relates to a pretreatment method for pectin of lemon peels. The pretreatment method comprises the following steps: smashing the lemon peels, carrying out stirring, adding water into obtained lemon peel pomace particles, wherein the mass of the water accounts for 1 to 5 times of the mass of the lemon peel pomace particles, carrying out uniform mixing, adding cellulase, protease and amylase into an obtained mixture for enzymatic hydrolysis, separating the lemon peel pomace particles from a mixture obtained by enzymatic hydrolysis through a separation device, extruding the lemon peel pomace particles through an extrusion device, and drying an extruded block through a drying device. According to the invention, enzymatic hydrolysis is carried out in a plurality of procedures, andthrough cooperation of enzymes, the pretreatment method has good treatment effect; after completion of crushing and enzymatic hydrolysis, the processes like sieving, extrusion and drying are added, soimpurities in the lemon peels can be completely removed; and the pretreatment method has reasonable process design and high processing efficiency.

Description

technical field [0001] The invention relates to the technical field of deep processing of agricultural products, in particular to a pectin preparation method, in particular to a lemon peel pectin pretreatment method. Background technique [0002] Pectin is a natural polymer compound widely present in the cell wall and intercellular layer structure of higher plants. Properties of pectin include gelling, thickening, and stabilizing. Some reports indicate that pectin has biological and physiological functions such as lowering serum cholesterol, delaying gastric emptying, immunomodulation, and inducing apoptosis of colon cancer cells. The raw materials for industrial production of pectin are apple pomace, citrus peel, lemon peel, and beet pomace, which are mainly derived from the waste residue produced by the upstream juice processing factory after squeezing the juice and then dried as the raw material for pectin processing. The preparation of pectin is mainly divided into two...

Claims

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Application Information

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IPC IPC(8): C08B37/06
CPCC08B37/0048
Inventor 廖劲松
Owner 广州市莱檬生物科技有限公司