CN108409889A - The extraction process of pectin in a kind of kiwifruit peel - Google Patents
The extraction process of pectin in a kind of kiwifruit peel Download PDFInfo
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- CN108409889A CN108409889A CN201810589558.6A CN201810589558A CN108409889A CN 108409889 A CN108409889 A CN 108409889A CN 201810589558 A CN201810589558 A CN 201810589558A CN 108409889 A CN108409889 A CN 108409889A
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- pectin
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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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- 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
- C08B37/0048—Processes of extraction from organic materials
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Abstract
The invention discloses a kind of extraction processes of pectin in kiwifruit peel, belong to the extraction process technology field of pectin, specifically include following steps：（1）Fresh kiwifruit peel is crushed after cleaning, heat treatment；（2）The water of 23 times of weight is added, with oxalic acid tune pH=2~3, is heated to 90 DEG C, persistently stir and keeps the temperature 100 minutes, is filtered to remove filter residue, obtains filtrate I；（3）Filtrate I is concentrated under reduced pressure 25 35min at 65 75 DEG C, and the activated carbon of 0.3 0.5 times of weight is added in concentrate, stirs 10 20min, filters to get filtrate II；（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 63 66%, malic acid is added or citric acid adjusts pH=2.5 3.5, obtains Kiwi berry pectin product.This is simple for process, and the recovery rate of pectin is high.
Description
Technical field
The present invention relates to the extraction processes of pectin, more particularly, to a kind of extraction process of pectin in kiwifruit peel.
Background technology
Pectin plays an important roll human health development, can promote the excretion of fat, steroids, advantageously reduce
With illness rate of the sex hormone in relation to cancer, and can be used as natural additive for fruit-vegetable juice beverage process in.And kiwifruit peel
Containing a large amount of pectin, the pectin extraction in kiwifruit peel is out used, kiwifruit peel is used, is had
Important environment protection significance.
Zhao Shasha etc. exists《Agriculture of Anhui science》Disclosed " technical study of pectin in Enzymatic Extraction kiwi peer and slag ",
Kiwi peer and the starch in slag and protein are removed, extracts and prepares diet edible pectin；Pass through single factor test and orthogonal test
Design determines the appropriate process conditions of pectin in 0.4% amylase and 0.4% trypsase extraction kiwi peer and slag respectively.
0.4% amylase can effectively remove the starch in kiwi peer and slag, and appropriate process conditions are：Solid-liquid ratio 1：Enzyme at 10,50 DEG C
Solve 60min；0.4% trypsase can effectively remove the protein in kiwi peer and slag, and appropriate process conditions are：Solid-liquid ratio
1：60min is digested at 10,35 DEG C.Under optimum process condition, through centrifuging, being concentrated to give pectin, wherein in kiwi peer and slag
Pectin yield be respectively 3.10% and 1.39%；But part pectin may be caused to be decomposed during digesting.
China Patent Publication No. CN103641933A discloses a kind of from the method for claiming to extract pectin in monkey peach skin slag, and selection carries
It is referred to as raw material to take the fresh monkey peach pericarp after fruit juice, pomace, is shredded after rinsing, and institute in hot-water soak passivation pericarp, pomace is added
The enzyme contained prevents the decomposition to pectin；After taking-up drain well in rustless steel container, water, citric acid, control condition is added
Pectin extraction is carried out, is separated by solid-liquid separation, obtains pectin extracting soln；Activated carbon stirring decoloration is added in pectin extracting soln, and filtering removes impurity,
Ethanol solution is added after vacuum concentration again and carries out alcohol precipitation, precipitation is collected in filtering, and vacuum dehydrating at lower temperature obtains pectin finished product.This hair
Bright extracting method rational technology, easy to operate, reaction process is mild, and low energy consumption, short preparation period;It is produced made from this method
Product save nutritional ingredient all in raw material, and the safety of product is good, and pectin yield is high.But this method does not have before extraction
Cell wall is handled, part pectin extraction can be caused not come out.
Invention content
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide pectin in a kind of kiwifruit peel
Extraction process, simple for process, the recovery rate of pectin is high.
In order to achieve the above objectives, the present invention uses following technical scheme：
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Fresh kiwifruit peel is crushed after cleaning, heat treatment；
（2）The water that 2-3 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2~3, persistently stirs and keeps the temperature 100 minutes, mistake
Filter residue is filtered out, filtrate I is obtained；
（3）25-35min is concentrated under reduced pressure in filtrate I at 65-75 DEG C, and the activated carbon of 0.3-0.5 times of weight is added in concentrate, stirs
10-20min is mixed, filters to get filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 63-66%, malic acid is added or citric acid adjusts pH=
2.5-3.5 obtains Kiwi berry pectin product.
Further, the step（1）In be broken for cryogenic pulverization, the specific steps are：By kiwifruit peel with 2 DEG C/min
Rate be cooled to -30~-70 DEG C, be crushed to grain size be 40-60 mesh.
Further, the step（1）In heat treatment be：75-85 DEG C of hot-water soak 30- of 2-4 times of weight is added
40min drains away the water.
Further, the step（1）In heat treatment be：2-3min, power 500-600w are heated in microwave.
The beneficial effects of the invention are as follows：
1, the present invention disclose a kind of extraction process of pectin in kiwifruit peel, passes through optimization technology for broken wall and extraction process, fruit
The recovery rate of glue is high, and the Kiwi berry pectin product of preparation is gel state, can be directly used for industrial positive production or edible, technique ring
It protects, it is of low cost.
2, pectin includes protopectin, pectinic acid etc. in kiwifruit peel, and wherein protopectin is present in cell wall,
It needs to carry out broken wall when extracting pectin, kiwifruit peel is ground into paste by conventional disintegrating process, it is not easy to be cleared up, and be cleared up
Pectin composition also easily loses in journey, and the application is that kiwifruit peel is cooled to -30~-70 DEG C with the rate of 2 DEG C/min, slow
During slow cooling, the moisture between plant cell can slowly form ice crystal, lead to cell expansion, to destroy cell
Wall makes protopectin dissolve out.
It is crushed under low temperature condition later, remakes heat treatment, wherein heat treatment can make to use hot-water soak, hot-water soak
In the process, the ice crystal in kiwifruit peel slowly melts, and removes enzyme therein.
In addition the mode that microwave can be used is heated, and heating time 2-3min, microwave heating leads to kiwifruit peel
It is heated rapidly inside plant cell and generates steam, pressure difference is formed with its external low temperature, to further result in cell wall damage
It is bad, be conducive to the extraction of follow-up pectin, increase recovery rate.
3, it is kept the temperature at 90 DEG C first with oxalic acid tune pH value for protopectin to be converted to soluble pectin in extraction process,
Then through activated carbon decolorizing, recovery rate is high, simple for process.
4, the filtrate after activated carbon decolorizing removes the water of pectic substance colloid using the water-retaining property of sucrose by the way that sucrose is added
Change film, pH is controlled in 2.5-3.5, can be inhibited the dissociation of carboxyl on pectin molecule, make electrically to neutralize.Hydration shell is rooted out and electricity
Property neutralize make pectic substance colloidal particle under intermolecular and intramolecular hydrogen bond and van der Waals interaction, line line is cross-linked into irregular
Three-dimensional eyed structure.Simultaneously as the hydration of the uncrosslinked part of pectin molecule and the capillary of space net structure are solidifying
Poly- effect, makes hydrone be formed with pectin substance in mesh homogeneously, to make edible jel product contain very high moisture,
Kiwi berry pectin product finally is prepared, which realizes recycling by Chinese gooseberry pomace and pulp nubbin
The purpose of edible pectin gel product is produced, industrial cost is reduced, improves the use value and economic value of raw material.
Specific implementation mode
With reference to specific embodiment, the invention will be further described.
Embodiment 1
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Fresh kiwifruit peel is crushed after cleaning, and 2 times of weight, 75 DEG C of hot-water soak 30min are added, drain away the water；
（2）The water that 2 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2, persistently stirs and keeps the temperature 100 minutes, crosses and filters out
Filter residue is removed, filtrate I is obtained；
（3）25min is concentrated under reduced pressure in filtrate I at 65 DEG C, and the activated carbon of 0.3 times of weight is added in concentrate, stirs 10min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 63%, malic acid is added and adjusts pH=2.8, obtains kiwi fruit
Glue product.
Embodiment 2
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Fresh kiwifruit peel is crushed after cleaning, and 4 times of weight, 85 DEG C of hot-water soak 40min are added, drain away the water；
（2）The water that 2.5 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2.5, persistently stirs and keeps the temperature 100 minutes, mistake
Filter residue is filtered out, filtrate I is obtained；
（3）25min is concentrated under reduced pressure in filtrate I at 70 DEG C, and the activated carbon of 0.3 times of weight is added in concentrate, stirs 10min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 65%, malic acid is added and adjusts pH=3.5, obtains kiwi fruit
Glue product.
Embodiment 3
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Kiwifruit peel is cooled to -30 DEG C with the rate of 2 DEG C/min after cleaning, is crushed to grain by fresh kiwifruit peel
Diameter is 40 mesh, and 2min, power 500w are then heated in microwave；
（2）The water that 2.5 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2.2, persistently stirs and keeps the temperature 100 minutes, mistake
Filter residue is filtered out, filtrate I is obtained；
（3）28min is concentrated under reduced pressure in filtrate I at 70 DEG C, and the activated carbon of 0.35 times of weight is added in concentrate, stirs 12min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 64%, citric acid is added and adjusts pH=3.0, obtains kiwi fruit
Glue product.
Embodiment 4
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Kiwifruit peel is cooled to -40 DEG C with the rate of 2 DEG C/min after cleaning, is crushed to grain by fresh kiwifruit peel
Diameter is 50 mesh, and 2.5min, power 550w are then heated in microwave；
（2）The water that 2.5 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2.5, persistently stirs and keeps the temperature 100 minutes, mistake
Filter residue is filtered out, filtrate I is obtained；
（3）30min is concentrated under reduced pressure in filtrate I at 70 DEG C, and the activated carbon of 0.4 times of weight is added in concentrate, stirs 15min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 65%, citric acid is added and adjusts pH=3.2, obtains kiwi fruit
Glue product.
Embodiment 5
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Kiwifruit peel is cooled to -50 DEG C with the rate of 2 DEG C/min after cleaning, is crushed to grain by fresh kiwifruit peel
Diameter is 50 mesh, and 3min, power 550w are then heated in microwave；
（2）The water that 3 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2.8, persistently stirs and keeps the temperature 100 minutes, filters
Filter residue is removed, filtrate I is obtained；
（3）30min is concentrated under reduced pressure in filtrate I at 75 DEG C, and the activated carbon of 0.45 times of weight is added in concentrate, stirs 18min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 63%, malic acid is added and adjusts pH=3.3, obtains kiwi fruit
Glue product.
Embodiment 6
The extraction process of pectin, includes the following steps in a kind of kiwifruit peel：
（1）Kiwifruit peel is cooled to -70 DEG C with the rate of 2 DEG C/min after cleaning, is crushed to grain by fresh kiwifruit peel
Diameter is 60 mesh, and 3min, power 600w are then heated in microwave；
（2）The water that 3 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=3, persistently stirs and keeps the temperature 100 minutes, crosses and filters out
Filter residue is removed, filtrate I is obtained；
（3）35min is concentrated under reduced pressure in filtrate I at 70 DEG C, and the activated carbon of 0.5 times of weight is added in concentrate, stirs 20min, mistake
Filter to obtain filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 65%, citric acid is added and adjusts pH=2.5, obtains kiwi fruit
Glue product.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical scheme of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (4)
1. the extraction process of pectin in a kind of kiwifruit peel, it is characterised in that：Include the following steps：
（1）Fresh kiwifruit peel is crushed after cleaning, heat treatment；
（2）The water that 2-3 times of weight is added is heated to 90 DEG C with oxalic acid tune pH=2~3, persistently stirs and keeps the temperature 100 minutes, mistake
Filter residue is filtered out, filtrate I is obtained；
（3）25-35min is concentrated under reduced pressure in filtrate I at 65-75 DEG C, and the activated carbon of 0.3-0.5 times of weight is added in concentrate, stirs
10-20min is mixed, filters to get filtrate II；
（4）Sucrose is added in filtrate II and mixes to sucrose concentration and reaches 63-66%, malic acid is added or citric acid adjusts pH=
2.5-3.5 obtains Kiwi berry pectin product.
2. the extraction process of pectin in a kind of kiwifruit peel according to claim 1, it is characterised in that：The step
（1）In be broken for cryogenic pulverization, the specific steps are：Kiwifruit peel is cooled to -30~-70 DEG C with the rate of 2 DEG C/min, powder
It is 40-60 mesh to be broken to grain size.
3. the extraction process of pectin in a kind of kiwifruit peel according to claim 1, it is characterised in that：The step
（1）In heat treatment be：75-85 DEG C of hot-water soak 30-40min of 2-4 times of weight is added, drains away the water.
4. the extraction process of pectin in a kind of kiwifruit peel according to claim 1, it is characterised in that：The step
（1）In heat treatment be：2-3min, power 500-600w are heated in microwave.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810589558.6A CN108409889A (en) | 2018-06-08 | 2018-06-08 | The extraction process of pectin in a kind of kiwifruit peel |
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| CN201810589558.6A CN108409889A (en) | 2018-06-08 | 2018-06-08 | The extraction process of pectin in a kind of kiwifruit peel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109090537A (en) * | 2018-08-31 | 2018-12-28 | 湘西老爹生物有限公司 | Without glue Kiwi berry jelly and preparation method thereof |
| 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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| JPS6446021A (en) * | 1987-08-14 | 1989-02-20 | K Seven Kk | Rotational force transmitting joint |
| CN103641933A (en) * | 2013-11-27 | 2014-03-19 | 威海市桢昊生物技术有限公司 | Method for extraction of pectin from kiwifruit peel pomace |
| CN106699917A (en) * | 2017-01-09 | 2017-05-24 | 中国农业大学 | Ultrasonic-assisted extraction method for polysaccharide extract and pectin extract of okra |
| CN107033257A (en) * | 2017-06-14 | 2017-08-11 | 河源市金品农业科技创新研究院 | A kind of preparation method that pectin is extracted from passion flower-fruit peel |
| CN108085123A (en) * | 2017-12-29 | 2018-05-29 | 海南尧香堂文化创意有限公司 | A kind of extraction process of coconut oil |
-
2018
- 2018-06-08 CN CN201810589558.6A patent/CN108409889A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6446021A (en) * | 1987-08-14 | 1989-02-20 | K Seven Kk | Rotational force transmitting joint |
| CN103641933A (en) * | 2013-11-27 | 2014-03-19 | 威海市桢昊生物技术有限公司 | Method for extraction of pectin from kiwifruit peel pomace |
| CN106699917A (en) * | 2017-01-09 | 2017-05-24 | 中国农业大学 | Ultrasonic-assisted extraction method for polysaccharide extract and pectin extract of okra |
| CN107033257A (en) * | 2017-06-14 | 2017-08-11 | 河源市金品农业科技创新研究院 | A kind of preparation method that pectin is extracted from passion flower-fruit peel |
| CN108085123A (en) * | 2017-12-29 | 2018-05-29 | 海南尧香堂文化创意有限公司 | A kind of extraction process of coconut oil |
Non-Patent Citations (2)
| Title |
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| 张力田，罗志刚: "《碳水化合物化学》", 31 July 2013, 中国轻工业出版社 * |
| 邵颖，刘洋: "《食品化学》", 31 January 2018, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109090537A (en) * | 2018-08-31 | 2018-12-28 | 湘西老爹生物有限公司 | Without glue Kiwi berry jelly and preparation method thereof |
| 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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