CN106883315A - A kind of method that pectin is extracted from kiwifruit peel - Google Patents
A kind of method that pectin is extracted from kiwifruit peel Download PDFInfo
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- CN106883315A CN106883315A CN201510942518.1A CN201510942518A CN106883315A CN 106883315 A CN106883315 A CN 106883315A CN 201510942518 A CN201510942518 A CN 201510942518A CN 106883315 A CN106883315 A CN 106883315A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
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Abstract
The invention discloses a kind of method that pectin is extracted from kiwifruit peel.Methods described comprises the following steps：Sorting, passivation, dry powder, extraction, decolouring, alcohol precipitation and drying, obtain solid pectin.The present invention provide pectin extraction method, overcome traditional handicraft largely use sour solvent the drawbacks of, gained pectin product purity is high, molecular structure destroy small, no solvent residue；The efficient recycling of kiwifruit peel is realized, added value of product is substantially increased；The inventive method process is simple is efficient simultaneously, it is easy to industrialization.
Description
Technical field
The present invention relates to a kind of extracting method of pectin, and in particular to be it is a kind of from kiwifruit peel extract pectin method.
Background technology
Pectin is a kind of polysaccharide macromolecular compound.The basis of pectin is same polygalacturonic acid (HGA55-65%) and poly- rhamnose galacturonic acid I (RG-I20-35%), also has the neutral sugars such as arabinose, rhamnose, galactolipin on its side chain.Pectin has good gelling and emulsibility, and with physiological functions such as anti-inflammatory, anticancer, anti diar rheas, extremely wide application is suffered from food, medicine, cosmetics and textile industry.
Kiwi berry is a kind of berry, and Actinidiaceae Actinidia is belonged in botany.Contain carbohydrate, actinidine, proteolytic enzyme, tannin, pectin, dietary fiber and multivitamin in Kiwi berry.In recent years with the development of fruit processing industry, a large amount of Kiwi berry processing wastes are formed, and up to 20% one the 30% of raw material, form new environomental pollution source.In order to solve food processing industry problem of environmental pollution, discarded object is made a silk purse out of a sow's ear, urgent need sets up a kind of process conditions and goes to obtain the dietary fiber of functional component one and soluble pectin in fruits and vegetables residue.
Natural pectin is widely present in green higher plant tissue, to organizing emollescence.Pectin is a kind of important composition composition of plant cell wall, is primarily present in the primary wall and intercellular layer of cell membrane.And cell membrane is plant " calcium storehouse ", be primarily present form of the pectin in cell membrane is exactly " protopectin " together with calcium ion complexing, and protopectin is insoluble in water.The process of pectin extraction is sought to change existence form of the pectin in plant, and insoluble pectin is converted into soluble pectin.
At present, the method for pectin extraction is mainly acid system and enzyme process.The subject matter that acid system carries glue is that pectin molecule can be hydrolyzed in acid condition, and glycosidic bond fracture, molecular weight reduction, degree of gelation reduces；Substantial amounts of acid pickle is produced after carrying glue, environment is polluted；When pectin is extracted in different acid, different degrees of dissolvent residual can be also caused；In industrial production, acidity extraction can also cause the corrosion of equipment.The subject matter that enzyme process carries glue is that the price of enzyme is high, produces pectin high cost, is not easy to industrialization.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of method that pectin is extracted from kiwifruit peel.To achieve the above object, the present invention uses following technical scheme：A kind of method that pectin is extracted from kiwifruit peel, comprises the following steps：
（1）Sorting：Fresh Kiwi berry pericarp, pomace after selection and withdrawal fruit juice are raw material；
（2）Passivation：
By the fresh Kiwi berry pericarp selected by step (1), the rinsing of pomace raw material clear water for several times, soluble impurity is removed；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add pericarp, 2~4 times of pomace quality, temperature, soaks 20~30min, with the enzyme in being passivated pericarp, pomace contained by itself, it is lost activity, and prevents its decomposition to pectin；
（3）Dry powder：Passivation after step (2) treatment is placed in microwave heating equipment, 300~700W of microwave power is adjusted, 3~5 minutes are processed, then 40~90 DEG C of dry kiwifruit peel powder；
（4）Extract：In above-mentioned dry kiwifruit peel powder, by solid-liquid ratio（g/ml）The 0.2~0.8% of 10~30 times sodium hexametaphosphate solution is added, the extraction of pectin is carried out, 500~700W of microwave power is processed 5~15 minutes, filtering obtains extract solution；
(5) decolourize：Activated carbon decolorizing will be added in extract solution, activated carbon is 1g with the mass volume ratio of solution:100rpm treatment 30-40min under the conditions of 100-150mL, 70-80 DEG C, filtering, filtrate decompression is concentrated into the 1/5 of original volume；
（6）Dry：Take step（5）Obtained concentrate, adds 0.5~1.5 times of 95% ethanol of weight, stands 10~30 minutes, and suction filtration, precipitation is washed several times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, i.e. finished product.
Compared with prior art, the present invention has following beneficial effect：
(1) during the inventive method and sour solvent is not used, its method is small to pectin molecule structural damage, and product purity is high, no solvent residue, not etching apparatus, free from environmental pollution；
(2) microwave auxiliary extraction technology is applied to plant broken wall by the inventive method, compared with traditional heating water bath, greatly accelerates reaction rate；
（3）Broken wall uses calgon processing method, calgon can improve the color of food, shape, the freshness and quality of food can be allowed to be maintained, and the demand of machining process can be allowed to be met, and calgon is very important quality improver in food.
(4) the valuable reagents such as biology enzyme are not used during the inventive method, low production cost, step is simple, easily operation, it is easy to industrialization.
Specific embodiment
It is described further with embodiment below, but the present invention is not limited to these embodiments.
Embodiment 1
A kind of method that pectin is extracted from kiwifruit peel, step is as follows：
（1）Sorting：Fresh Kiwi berry pericarp, pomace after selection and withdrawal fruit juice are raw material；
（2）Passivation：
By the fresh Kiwi berry pericarp selected by step (1), the rinsing of pomace raw material clear water for several times, soluble impurity is removed；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add pericarp, 2~4 times of pomace quality, temperature, soaks 20~30min, with the enzyme in being passivated pericarp, pomace contained by itself, it is lost activity, and prevents its decomposition to pectin；
（3）Dry powder：Passivation after step (2) treatment is placed in microwave heating equipment, 300~700W of microwave power is adjusted, 3~5 minutes are processed, then 40~90 DEG C of dry kiwifruit peel powder；
（4）Extract：100g kiwifruit peel powder is taken, the sodium hexametaphosphate solution of 1000ml0.8% is added, the extraction of pectin is carried out, microwave power 500W is processed 15 minutes, filtering obtains extract solution；
(5) decolourize：Will in extract solution add 10g activated carbons, 100rpm stirring, heating water bath to 70 DEG C decolourize 40 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（6）Dry：0.5 times of 95% ethanol of weight is added in concentrate, 30 minutes are stood, suction filtration, precipitation is washed 3 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin.
Embodiment 2
A kind of method that pectin is extracted from kiwifruit peel, step is as follows：
（1）Sorting：Fresh Kiwi berry pericarp, pomace after selection and withdrawal fruit juice are raw material；
（2）Passivation：
By the fresh Kiwi berry pericarp selected by step (1), the rinsing of pomace raw material clear water for several times, soluble impurity is removed；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add pericarp, 2~4 times of pomace quality, temperature, soaks 20~30min, with the enzyme in being passivated pericarp, pomace contained by itself, it is lost activity, and prevents its decomposition to pectin；
（3）Dry powder：Passivation after step (2) treatment is placed in microwave heating equipment, 300~700W of microwave power is adjusted, 3~5 minutes are processed, then 40~90 DEG C of dry kiwifruit peel powder；
（4）Extract：100g kiwifruit peel powder is taken, the sodium hexametaphosphate solution of 3000ml0.2% is added, the extraction of pectin is carried out, microwave power 700W is processed 5 minutes, filtering obtains extract solution；
(5) decolourize：Will in extract solution add 20g activated carbons, 100rpm stirring, heating water bath to 80 DEG C decolourize 30 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（6）Dry：1.5 times of 95% ethanol of weight are added in concentrate, 10 minutes are stood, suction filtration, precipitation is washed 2 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin.
Embodiment 3
A kind of method that pectin is extracted from kiwifruit peel, step is as follows：
（1）Sorting：Fresh Kiwi berry pericarp, pomace after selection and withdrawal fruit juice are raw material；
（2）Passivation：
By the fresh Kiwi berry pericarp selected by step (1), the rinsing of pomace raw material clear water for several times, soluble impurity is removed；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add pericarp, 2~4 times of pomace quality, temperature, soaks 20~30min, with the enzyme in being passivated pericarp, pomace contained by itself, it is lost activity, and prevents its decomposition to pectin；
（3）Dry powder：Passivation after step (2) treatment is placed in microwave heating equipment, 300~700W of microwave power is adjusted, 3~5 minutes are processed, then 40~90 DEG C of dry kiwifruit peel powder；
（4）Extract：100g kiwifruit peel powder is taken, the sodium hexametaphosphate solution of 2000ml0.6% is added, the extraction of pectin is carried out, microwave power 600W is processed 10 minutes, filtering obtains extract solution；
(5) decolourize：Will in extract solution add 16g activated carbons, 100rpm stirring, heating water bath to 75 DEG C decolourize 35 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（6）Dry：1.0 times of 95% ethanol of weight are added in concentrate, 20 minutes are stood, suction filtration, precipitation is washed 3 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin.
In above-described embodiment 1-3, the pectin yield extracted from kiwi peer and slag is respectively 3.10~3.42% and 1.39~1.46%.
Claims (1)
1. it is a kind of from kiwifruit peel extract pectin method, it is characterised in that methods described comprises the following steps：
（1）Sorting：Fresh Kiwi berry pericarp, pomace after selection and withdrawal fruit juice are raw material；
（2）Passivation：By the fresh Kiwi berry pericarp selected by step (1), the rinsing of pomace raw material clear water for several times, soluble impurity is removed；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add pericarp, 2~4 times of pomace quality, temperature, soaks 20~30min, with the enzyme in being passivated pericarp, pomace contained by itself, it is lost activity, and prevents its decomposition to pectin；
（3）Dry powder：Passivation after step (2) treatment is placed in microwave heating equipment, 300~700W of microwave power is adjusted, 3~5 minutes are processed, then 40~90 DEG C of dry kiwifruit peel powder；
（4）Extract：In above-mentioned dry kiwifruit peel powder, by solid-liquid ratio（g/ml）The 0.2~0.8% of 10~30 times sodium hexametaphosphate solution is added, the extraction of pectin is carried out, 500~700W of microwave power is processed 5~15 minutes, filtering obtains extract solution；
(5) decolourize：Activated carbon decolorizing will be added in extract solution, activated carbon is 1g with the mass volume ratio of solution:100rpm treatment 30-40min under the conditions of 100-150mL, 70-80 DEG C, filtering, filtrate decompression is concentrated into the 1/5 of original volume；
（6）Dry：Take step（5）Obtained concentrate, adds 0.5~1.5 times the 95% of weight
Ethanol, stands 10~30 minutes, and suction filtration, precipitation is washed several times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, i.e. finished product.
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| CN201510942518.1A CN106883315A (en) | 2015-12-16 | 2015-12-16 | A kind of method that pectin is extracted from kiwifruit peel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523118A (en) * | 2018-05-17 | 2018-09-14 | 大连民族大学 | A kind of multidimensional tara vine pectin |
| CN109988252A (en) * | 2019-05-20 | 2019-07-09 | 沈阳农业大学 | A kind of extracting method of actinidia arguta polysaccharides |
| CN112568369A (en) * | 2020-12-31 | 2021-03-30 | 四川省苍溪漓山粮油有限公司 | Fresh and wet kiwi fruit noodles and production method thereof |
-
2015
- 2015-12-16 CN CN201510942518.1A patent/CN106883315A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523118A (en) * | 2018-05-17 | 2018-09-14 | 大连民族大学 | A kind of multidimensional tara vine pectin |
| CN109988252A (en) * | 2019-05-20 | 2019-07-09 | 沈阳农业大学 | A kind of extracting method of actinidia arguta polysaccharides |
| CN112568369A (en) * | 2020-12-31 | 2021-03-30 | 四川省苍溪漓山粮油有限公司 | Fresh and wet kiwi fruit noodles and production method thereof |
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Application publication date: 20170623 |
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