CN108314748A - A kind of aloe skin pectous extracting method - Google Patents
A kind of aloe skin pectous extracting method Download PDFInfo
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- CN108314748A CN108314748A CN201810243339.2A CN201810243339A CN108314748A CN 108314748 A CN108314748 A CN 108314748A CN 201810243339 A CN201810243339 A CN 201810243339A CN 108314748 A CN108314748 A CN 108314748A
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- Prior art keywords
- aloe
- pectin
- skin
- aloe skin
- extracting method
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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
Abstract
The invention discloses a kind of aloe skin pectous extracting methods, include the steps that clean, enzyme deactivation the step of, drying and crushing the step of, enzymolysis the step of, centrifugation the step of, concentration the step of, alcohol precipitation the step of, filter the step of, drying step, can finally obtain solid pectin product.The present invention carries the pectin in alcohol deposition method extraction aloe skin using aloe barbadensis Miller skin as raw material, using enzyme, obtains optimal processing parameter, the aloe skin discarded after being processed to aloe carries out pectin extraction to improve the added value of aloe.
Description
Technical field
The present invention relates to the utilizations again of a kind of pectin extraction technology more particularly to aloe barbadensis Miller processing waste, make
A kind of technique of pectin is extracted in aloe skin with a kind of cellulase.
Background technology
Pectin is a kind of natural macromolecule amylose of complexity, and main component is D- galacturonic acids, also contain rhamnose,
Xylose, arabinose and galactolipin etc..The raw material of pectin is mainly orange peel, orange peel, lemon peel, apple skin, banana skin at present
Equal pericarps, other are as also contained abundant pectin in sunflower plate, honey peach, Kiwi berry, pineapple peel and sweet potato.Aloe (Aloe)
Pectin is rich in skin, but the enterprise that aloe is processed into food and health products domestic at present not yet considers the comprehensive sharp of aloe skin
With resulting in waste of resources.
Laboratory is more to the pectin extraction research of citrus (tangerine, orange) skin.Zhang Shengyan is carried using ultrasound-assisted enzymolysis method
Take the pectin in tangerine peel, have studied the influence of pH, Extracting temperature and extraction time to pectin extraction rate, it is determined that extraction it is best
Process conditions.Dai Yujin etc. has carried out the research of extraction orange peel pectin with ion-exchange.Feng Hongmei has carried out citrus pectin
Extraction and its Study on Rheological Properties.Also the acid that Hang Yuyu etc. has carried out pineapple bran pectin proposes technique and physicochemical property research.
Geng Lijing et al. extracts the pectin in skin and meat using the method for sour water solution ethanol precipitation using aloe barbadensis Miller as raw material.
Above-mentioned acidity extraction is traditional industrial pectin production method, but its major defect is：First, pectin was extracting
It is easy to happen partial hydrolysis reaction in journey, reduces the molecular mass of pectin, influences the side such as yield and viscosity, gelling performance of pectin
Face；Second, since the polyvalent metal ion in pericarp can be combined by ionic bond with pectin, there are sealing process, shadow to pectin
Hydrolysis and the purity of pectin are rung, and the impurity such as some lower-molecular substances and pigment have constraint to pectin, pectin can be caused to produce
Rate is low, and degree of gelation is not strong, and content of ashes is high, shade deviation；In addition, the general temperature of acidity extraction is relatively high, 80 DEG C~100 DEG C it
Between.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of aloe skin pectous extracting methods.This
Invention carries the pectin in alcohol deposition method extraction aloe skin using aloe barbadensis Miller skin as raw material, using enzyme, obtains optimal processing parameter, right
The aloe skin discarded after aloe processing carries out pectin extraction to improve the added value of aloe.
The purpose of the present invention adopts the following technical scheme that realization：A kind of aloe skin pectous extracting method, including,
The step of cleaning：By fresh aloe carry out skin and flesh separation after, with clear water rinsing several times, remove silt, dust and
Mucus impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into enzyme deactivation in thermostat water bath；
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven and is dried, then through crushing,
Powder is obtained with spare；
The step of enzymolysis：Hydrochloric acid solution is prepared in thermostat water bath, cellulase is added, and takes the Alose after sieving
It is added in thermostat water bath, heat preservation enzymolysis；
The step of centrifugation：By the solution after enzymolysis in centrifuge centrifugally operated, take supernatant；
The step of concentration：Supernatant is concentrated；
The step of alcohol precipitation：Ethanol solution is added into concentrate, places in a moment, obtains cotton-shaped pectin；
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven and is dried, you can obtains solid fruit
Glue product.
Further, in the enzyme deactivation the step of, the temperature of the thermostat water bath is 60-80 DEG C, and aloe skin is in thermostatted water
Water-bath keeps 8-15min in bath.
Further, in the drying and crushing the step of, the temperature of the constant temperature blast drying oven is 40-60 DEG C, the powder
End passes through spare after 60 mesh standard sieves.
Further, in the step of digesting, the hydrochloric acid solution pH is 4.5-6.5.
Further, in the step of digesting, 40,000 U/g of enzyme activity of the cellulase, the mass fraction of cellulase
It is 0.2%；The solid-liquid ratio of the Alose and hydrochloric acid solution is 1:(18-22), solid-liquid ratio unit are g/mL.
Further, in the step of digesting, the hydrolysis temperature is 35-45 DEG C, enzymolysis time 1-3h.
Further, in the step of centrifuging, the centrifugal condition is as follows：Rotating speed is 4500-5500r/min centrifugally operateds
5-15min。
Further, in the step of concentrating, the 1/4 of the supernatant concentration to original volume.
Further, in the alcohol precipitation the step of, the addition of the ethanol solution is 8 times of amount volumes of concentrate；
Standing time is 25-35min.
Further, in dry step, the drying condition be temperature be 60 DEG C or less dryings for 24 hours.
Compared with prior art, the beneficial effects of the present invention are：
The present invention carries the pectin in alcohol deposition method extraction aloe skin using aloe barbadensis Miller skin as raw material, using enzyme, obtains best
Technological parameter, the aloe skin discarded after being processed to aloe carry out pectin extraction to improve the added value of aloe.It is specific as follows：
(1) from the point of view of extraction efficiency, compared with prior art, aloe skin pectin extraction solid-liquid ratio of the invention is lower, than making
With the pectin extraction rate higher of fresh aloe skin, reach 21.32%；
(2) from the point of view of process costs, instrument and equipment is few needed for technical process of the invention, and technological process is simple, it is easier to
It realizes and is factory produced.
To sum up, compared with prior art, the present invention reduces 90% than directly using aloe fresh hide extraction pectin
Storing and operating space, acid, which carries the solid-liquid ratio of operation, reduces 5%, and pectin yield improves 17%, substantially increases operation
Efficiency reduces operating cost.
Specific implementation mode
In the following, in conjunction with specific implementation mode, the present invention is described further, it should be noted that is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, used equipment and raw material etc.
It is commercially available or commonly used in the art.Method in following embodiments is unless otherwise instructed the normal of this field
Rule method.
A kind of aloe skin pectous extracting method, including,
The step of cleaning：By fresh aloe carry out skin and flesh separation after, with clear water rinsing several times, remove silt, dust and
Mucus impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into enzyme deactivation in thermostat water bath；As further preferred scheme, institute
The temperature for stating thermostat water bath is 60-80 DEG C, and aloe skin water-bath in thermostat water bath keeps 8-15min.
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven and is dried, then through crushing,
Powder is obtained with spare；As further preferred scheme, the temperature of the constant temperature blast drying oven is 40-60 DEG C, and the powder is logical
It crosses spare after 60 mesh standard sieves.It compares and directly carries out pectin extraction using fresh aloe skin, raw material used is by 60
The aloe skin dried powder of mesh standard sieve, is easy to preserve, and can reduce extraction operation solid-liquid ratio to 1:(18-22), unit g/mL.
The step of enzymolysis：Hydrochloric acid solution is prepared in thermostat water bath, cellulase is added, and takes the Alose after sieving
It is added in thermostat water bath, heat preservation enzymolysis；As further preferred scheme, the hydrochloric acid solution pH is 4.5-6.5.The fiber
The mass fraction of 40,000 U/g of enzyme activity of plain enzyme, cellulase are 0.2%；The solid-liquid ratio of the Alose and hydrochloric acid solution is
1:(18-22) (unit g/mL).The hydrolysis temperature is 35-45 DEG C, enzymolysis time 1-3h.
In the enzymolysis process of the present invention, the solution ph of pectin extraction operation is 5.5, reduces hydrochloric acid totality usage amount,
Save the energy consumption needed for subsequent enzymolysis process；Hydrolysis temperature in process conditions is 40 DEG C, acidolysis of 90 DEG C compared to tradition
Condition milder, easy to implement, energy consumption is also less.
The step of centrifugation：By the solution after enzymolysis in centrifuge centrifugally operated, take supernatant；As further preferred side
Case, the centrifugal condition are as follows：Rotating speed is 4500-5500r/min centrifugally operateds 5-15min.
The step of concentration：Supernatant is concentrated；As further preferred scheme, the supernatant concentration to original volume
1/4.
The step of alcohol precipitation：Ethanol solution is added into concentrate, places in a moment, obtains cotton-shaped pectin；As into
The addition of one step preferred embodiment, the ethanol solution is 8 times of amount volumes of concentrate；Standing time is 25-35min.
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven and is dried, you can obtains solid fruit
Glue product.As further preferred scheme, the drying condition be temperature be 60 DEG C or less dryings for 24 hours.
Specific embodiment of the present invention when following, used raw material, equipment etc. remove special limit in the following embodiments
It can be obtained by buying pattern outside fixed.
Wherein, use instrument and equipment is as shown in table 1,40,000 U/g of enzyme activity of the cellulase used, be purchased from Ningxia
Xia Sheng Industry Group Co., Ltd.
1 key instrument of table and equipment
Embodiment 1：
A kind of aloe skin pectous extracting method, including,
The step of cleaning：It after fresh aloe is carried out skin and flesh separation, is rinsed 3 times, remove silt, dust and sticked with clear water
Liquid impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into thermostat water bath, 8min is kept at 80 DEG C, reaches enzyme deactivation
Purpose；
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven, is dried at 60 DEG C,
Again through crushing through 60 mesh standard sieves, powder is obtained with spare；
The step of enzymolysis：It is 4.5 hydrochloric acid solutions that pH is prepared in thermostat water bath, and the fibre that mass fraction is 0.2% is added
The plain enzyme of dimension, with solid-liquid ratio for 1:The ratio of 18 (g/mL) takes the Alose after sieving to be added in thermostat water bath, 35 DEG C of heat preservations
Digest 1h；
The step of centrifugation：Solution after enzymolysis is taken into supernatant in centrifuge with 4500r/min centrifugally operated 5min；
The step of concentration：Supernatant is carried out to be concentrated into the 1/4 of original volume；
The step of alcohol precipitation：The ethanol solution that 8 times of volumes are added into concentrate obtains cotton-shaped fruit after placing 25min
Glue；
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven, 60 DEG C or less dryings are for 24 hours, you can
Obtain solid pectin product.
Embodiment 2：
A kind of aloe skin pectous extracting method, including,
The step of cleaning：It after fresh aloe is carried out skin and flesh separation, is rinsed 3 times, remove silt, dust and sticked with clear water
Liquid impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into thermostat water bath, 10min is kept at 80 DEG C, reaches and go out
The purpose of enzyme；
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven, is dried at 60 DEG C,
Again through crushing through 60 mesh standard sieves, powder is obtained with spare；
The step of enzymolysis：It is 5.5 hydrochloric acid solutions that pH is prepared in thermostat water bath, and the fibre that mass fraction is 0.2% is added
The plain enzyme of dimension, with solid-liquid ratio for 1:The ratio of 20 (g/mL) takes the Alose after sieving to be added in thermostat water bath, 40 DEG C of heat preservations
Digest 2h；
The step of centrifugation：Solution after enzymolysis is taken into supernatant in centrifuge with 5000r/min centrifugally operated 10min；
The step of concentration：Supernatant is carried out to be concentrated into the 1/4 of original volume；
The step of alcohol precipitation：The ethanol solution that 8 times of volumes are added into concentrate obtains cotton-shaped fruit after placing 30min
Glue；
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven, 60 DEG C or less dryings are for 24 hours, you can
Obtain solid pectin product.
Embodiment 3：
A kind of aloe skin pectous extracting method, including,
The step of cleaning：It after fresh aloe is carried out skin and flesh separation, is rinsed 3 times, remove silt, dust and sticked with clear water
Liquid impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into thermostat water bath, 15min is kept at 80 DEG C, reaches and go out
The purpose of enzyme；
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven, is dried at 60 DEG C,
Again through crushing through 60 mesh standard sieves, powder is obtained with spare；
The step of enzymolysis：It is 6.5 hydrochloric acid solutions that pH is prepared in thermostat water bath, and the fibre that mass fraction is 0.2% is added
The plain enzyme of dimension, with solid-liquid ratio for 1:The ratio of 22 (g/mL) takes the Alose after sieving to be added in thermostat water bath, 45 DEG C of heat preservations
Digest 2h；
The step of centrifugation：Solution after enzymolysis is taken into supernatant in centrifuge with 5500r/min centrifugally operated 15min；
The step of concentration：Supernatant is carried out to be concentrated into the 1/4 of original volume；
The step of alcohol precipitation：The ethanol solution that 8 times of volumes are added into concentrate obtains cotton-shaped fruit after placing 35min
Glue；
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven, 60 DEG C or less dryings are for 24 hours, you can
Obtain solid pectin product.
Effect assessment
The pectin yield of embodiment 1-3 is detected, the results show that compared with prior art, the present invention is than direct
Reduce 90% storing and operating space using aloe fresh hide extraction pectin, the solid-liquid ratio that acid proposes operation reduces 5%, pectin
Yield improves 17%, substantially increases operating efficiency, reduces operating cost.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of aloe skin pectous extracting method, it is characterised in that including,
The step of cleaning：After fresh aloe is carried out skin and flesh separation, several times with clear water rinsing, silt, dust and mucus are removed
Impurity；
The step of enzyme deactivation：Aloe skin after cleaning is put into enzyme deactivation in thermostat water bath；
The step of drying and crushing：Aloe skin after enzyme deactivation is put into constant temperature blast drying oven and is dried, then through crushing, obtains powder
End is with spare；
The step of enzymolysis：Hydrochloric acid solution is prepared in thermostat water bath, cellulase is added, and the Alose after sieving is taken to be added
In thermostat water bath, heat preservation enzymolysis；
The step of centrifugation：By the solution after enzymolysis in centrifuge centrifugally operated, take supernatant；
The step of concentration：Supernatant is concentrated；
The step of alcohol precipitation：Ethanol solution is added into concentrate, places in a moment, obtains cotton-shaped pectin；
The step of suction filtration：Cotton-shaped pectin solution is filtered, white pectin sediment is obtained；
Dry step：White pectin sediment is put into constant temperature blast drying oven and is dried, you can obtains solid pectin production
Product.
2. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the enzyme deactivation the step of, the constant temperature
The temperature of water-bath is 60-80 DEG C, and aloe skin water-bath in thermostat water bath keeps 8-15min.
3. aloe skin pectous extracting method as described in claim 1, which is characterized in that described in the drying and crushing the step of
The temperature of constant temperature blast drying oven is 40-60 DEG C, and the powder passes through spare after 60 mesh standard sieves.
4. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the step of digesting, the hydrochloric acid
PH value of solution is 4.5-6.5.
5. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the step of digesting, the fiber
The mass fraction of 40,000 U/g of enzyme activity of plain enzyme, cellulase are 0.2%；The solid-liquid ratio of the Alose and hydrochloric acid solution is
1:(18-22), solid-liquid ratio unit are g/mL.
6. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the step of digesting, the enzymolysis
Temperature is 35-45 DEG C, enzymolysis time 1-3h.
7. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the step of centrifuging, the centrifugation
Condition is as follows：Rotating speed is 4500-5500r/min centrifugally operateds 5-15min.
8. aloe skin pectous extracting method as described in claim 1, which is characterized in that in the step of concentrating, the supernatant
Liquid is concentrated into the 1/4 of original volume.
9. aloe skin pectous extracting method as described in claim 1, which is characterized in that described anhydrous in the alcohol precipitation the step of
The addition of ethanol solution is 8 times of amount volumes of concentrate；Standing time is 25-35min.
10. aloe skin pectous extracting method as described in claim 1, which is characterized in that in dry step, the drying
Condition be temperature be 60 DEG C or less dryings for 24 hours.
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| CN109820083A (en) * | 2019-04-11 | 2019-05-31 | 广西壮族自治区农业科学院 | A kind of processing method of multi-vitamins Sweet Potato Leaf chewing soft sweet |
| CN110386993A (en) * | 2019-08-15 | 2019-10-29 | 上海辉文生物技术股份有限公司 | A kind of cape jasmine fruit pectin and preparation method thereof and the application in food processing |
| CN111011664A (en) * | 2019-12-30 | 2020-04-17 | 内江师范学院 | Adhesive, fish feed and preparation method and application thereof |
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| CN111011664A (en) * | 2019-12-30 | 2020-04-17 | 内江师范学院 | Adhesive, fish feed and preparation method and application thereof |
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