Preparation method for extracting pectin from passiflora peel

A technology for passion fruit and peel, which is applied in the field of preparation of extracting pectin from passion fruit peel, can solve the problems of high cost, difficult removal of metal ions and subsequent processes, etc., achieves low equipment requirements, and promotes coagulation and extraction processes. simple effect

Inactive Publication Date: 2017-08-11
河源市金品农业科技创新研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the high cost of existing pectin production methods, the introduction of metal ions and subsequent processes are difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Peel pretreatment: Wash 50g of fresh passion fruit peel, cut into granules with a side length of 3mm, mix the peel and water at a ratio of 1:6, heat to 90°C in a constant temperature water bath, and stir Soak for 10min to prepare the pretreated pericarp;

[0029] (2) Beating: using a tissue masher to beat the pretreated pericarp in step (1) to obtain pericarp pulp;

[0030] (3) Wall breaking: Add 0.2% cellulase to the peel slurry obtained in step (2) and add distilled water 1 times the weight of passionflower peel, keep the temperature at 45°C, and process for 10 minutes, then add 0.75% citric acid solution of 4 times of Passiflora pericarp weight, makes pericarp extract;

[0031] (4) Ultrasonic extraction: Sonicate the peel extract prepared in step (3) for 30 minutes in an ultrasonic instrument with a power of 400W, and the temperature is 85°C to obtain a crude pectin extract;

[0032] (5) Filtration: Filtrate the pectin crude extract obtained in step (4), and co...

Embodiment 2

[0036] (1) Peel pretreatment: Wash 75g of fresh passion fruit peel, cut into granules with a side length of 4mm, mix the peel and water at a ratio of 1:8, heat to 95°C in a constant temperature water bath, and stir Soak for 15min to prepare the pretreated pericarp;

[0037] (2) Beating: using a tissue masher to beat the pretreated pericarp in step (1) to obtain pericarp pulp;

[0038] (3) Wall breaking: Add 0.4% cellulase to the peel pulp obtained in step (2) and distilled water 1 times the weight of the passion fruit peel, keep the temperature at 50°C, and process for 12 minutes, then add 0.9% citric acid solution of 5 times of the passion fruit peel weight, makes the peel extract;

[0039] (4) Ultrasonic extraction: Sonicate the peel extract prepared in step (3) for 45 minutes in an ultrasonic instrument with a power of 500W, and the temperature is 90°C to obtain a crude pectin extract;

[0040] (5) Filtration: Filtrate the pectin crude extract obtained in step (4), and co...

Embodiment 3

[0044] (1) Peel pretreatment: Wash 100g of fresh passion fruit peel, cut into granules with a side length of 5mm, mix the peel and water at a ratio of 1:10, heat to 100°C in a constant temperature water bath, and stir Soak for 20min to prepare the pretreated pericarp;

[0045] (2) Beating: using a tissue masher to beat the pretreated pericarp in step (1) to obtain pericarp pulp;

[0046] (3) Wall breaking: Add 0.5% cellulase to the peel slurry obtained in step (2) and distilled water twice the weight of the passionflower peel, keep the temperature at 55°C, and process for 15 minutes, then add 1% citric acid solution of 6 times of the passion fruit peel weight, makes the peel extract;

[0047] (4) Ultrasonic extraction: Ultrasonicate the peel extract obtained in step (3) for 60 minutes in an ultrasonic instrument with a power of 600W at a temperature of 100°C to obtain a crude pectin extract;

[0048] (5) Filtration: Filtrate the pectin crude extract obtained in step (4), and...

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PUM

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Abstract

The invention discloses a preparation method for extracting pectin from passion fruit peel, comprising the following steps: (1) peel pretreatment; (2) beating; (3) wall breaking; (4) ultrasonic extraction; (5) Pectin precipitation. The present invention uses the ultrasonic enzymatic method to extract the pectin substance, adds cellulase to break the cell wall, and then uses the "cavitation effect" of the ultrasonic wave to make the solid surface of the peel and the liquid medium suffer a great impact force, and the two-pronged method can maximize the Limit the pectin in the cell to be released from the cell; the pectin flowing out from the cell is protopectin, adding citric acid to keep the environment acidic, so that the water-insoluble protopectin becomes soluble pectin; the present invention does not Any chemical reagent is used, so no chemical pollution will be introduced, the extraction process is simple, the equipment requirements are low, and it is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of extracting pectin, in particular to a preparation method for extracting pectin from passion fruit peel. Background technique [0002] Pectin is a high-molecular carbohydrate present in the cell wall and inner layer of the cell, and widely exists in the fruits, roots, stems, and leaves of plants. The natural pectin in plants is non-toxic, harmless, safe and reliable, so it is often used as natural food additives such as gelling agent, thickener, stabilizer, emulsifier, and tissue improver in the food and chemical industries. In addition, because pectin has antibacterial, hemostatic, detumescence, detoxification, antidiarrheal, hypotensive, anti-radiation effects, it has been widely used in the field of medicine in recent years. With the development and research of functional polysaccharides, pectin, as a water-soluble dietary fiber, has received more and more attention from research and processing industr...

Claims

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Application Information

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IPC IPC(8): C08B37/06
CPCC08B37/0045C08B37/0003
Inventor 严汉彬韩珍吴达薪魏凡锋翁丽彬张钰倩
Owner 河源市金品农业科技创新研究院
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