CN103641931A - Method for extraction of pectin from pineapple peels and residue - Google Patents
Method for extraction of pectin from pineapple peels and residue Download PDFInfo
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- CN103641931A CN103641931A CN201310609239.4A CN201310609239A CN103641931A CN 103641931 A CN103641931 A CN 103641931A CN 201310609239 A CN201310609239 A CN 201310609239A CN 103641931 A CN103641931 A CN 103641931A
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- pectin
- slag
- pineapple peel
- pineapple
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Abstract
The invention relates to a method for extraction of pectin from pineapple peels and residue. The method includes: selecting fresh pineapple peels and pineapple residue as raw materials; washing off impurities by clear water, then putting the materials into a cooking pan, adding water and conducting boiling to passivate the enzyme contained in the pineapple peels and residue, thereby preventing pectin decomposition; then flushing the materials to colorless by clear water; placing the pineapple peels and residue into an extraction pot, adding water and citric acid, controlling conditions to carry out heating twice to extract pectin, and performing solid-liquid separation, to obtain a pectin extract liquid; performing primary filtering to obtain a clarified solution of pectin; then carrying out vacuum concentration, adding activated carbon, and performing stirring decolorization; adding an ethanol solution into the decolorized concentrated pectin solution to conduct alcohol sedimentation, carrying out filtration and collecting pectin precipitates; and implementing vacuum low temperature drying, thus obtaining a pectin finished product. The extraction method provided by the invention has the advantages of reasonable process, simple operation, less reagent consumption, low energy consumption, safety, no pollution, low production cost, good product safety, and high pectin yield, and is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to the preparation of pectin, especially a kind of method of utilizing pineapple peel, slag to extract pectin.
Background technology
Pectin is a class natural high moleculer eompound, and it is mainly present in all higher plants, is the important component of vegetable cell interstitial.Pectin is deposited on primary cell wall and cell interbed, in primary wall, be cross-linked with each other with micro-fibril and some extensin of the Mierocrystalline cellulose of different content, hemicellulose, xylogen, making various cell tissue structures hard, show intrinsic form, is the support substance of inner cell.The pectin extracting from plant is also a kind of natural food additive, for manufacturing the raw material of jam, jelly etc.
Pineapple contains a large amount of fructose, glucose, and vitamins B, C, phosphorus, the materials such as citric acid and proteolytic enzyme, pineapple is as eating raw, yellowish pink golden yellow, aromatic flavour, sweet and sour palatability, clear and melodious succulence.Fabricated product pineapple tin is described as " international fruit can ", is extensively subject to human consumer's welcome.Pineapple has produced a large amount of skins, slag after edible or processing, and natural fruit gelatin substance is extensively present in pineapple peel, slag with the form of protopectin-, pectin, pectic acid.
The pectin how extracting in pineapple peel, slag is a problem demanding prompt solution.
Summary of the invention
The object of this invention is to provide a kind of method of utilizing pineapple peel, slag to extract pectin, this extracting method technique is reasonable, easy and simple to handle, equipment used simple, agents useful for same security few, product is good in leaching process, production cost is low, pectin yield is high, be applicable to large-scale industrial production.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of utilizing pineapple peel, slag to extract pectin, is characterized in that: process following process steps:
A, raw material are chosen fresh pineapple peel, pineapple bran is raw material;
B, boil Passivation Treatment and adopt clear water to rinse the selected pineapple peel of step (a), slag raw material, remove surperficial impurity, then put into water boil 10～20min that steam cooker adds 2～3 times of pineapple peel, slag amount, contained enzyme in passivation pineapple peel, slag, it is lost activity, stop its decomposition to pectin;
C, washing, dehydration adopt clear water washing to colourless the pineapple peel, the slag that in step (b), boil after Passivation Treatment, then put into filter cloth and carry out press dewatering;
D, acid are carried pineapple peel, slag after press dewatering in step (c) are put into extractor, add the water of 2～3 times of pineapple peel, slag amount, stir; Then 0.5～1% the citric acid that adds pineapple peel, slag amount after dehydration, regulates pH value to 2.5～3.0, is warming up to 55～60 ℃, keeps 1 hour; Then be warming up to 80～85 ℃, keep 1 hour, extract pectin wherein; After pectin extraction, be transferred in whizzer, solid-liquid separation, obtains pectin extracting soln;
E, filtration adopt 100～200 object filter screens to filter the resulting pectin extracting soln of step (d), remove impurity, obtain pectin clear liquor;
F, concentrated the resulting pectin clear liquor of step (e) is inserted in vacuum concentrator, control vacuum concentrator vacuum tightness 0.03～0.07MPa, 60～80 ℃ of temperature, being concentrated into clear liquor concentration is 5～10%, obtains fructose concentrating liquid;
G, decolouring will add the gac of concentrated solution quality 1～3% in the resulting fructose concentrating liquid of step (f), control 60～80 ℃ of temperature, stir decolouring 30～60min;
It is 90～95% ethanolic soln that fructose concentrating liquid after h, alcohol precipitation process step (g) decolouring adds concentration, and addition is 40～60% of fructose concentrating liquid quality, adopts the mode that stirs while adding, until precipitation is separated out completely; Use again 100～200 order filtered through gauze, collect pectin precipitation;
I, dry the resulting pectin precipitation of step (h) is sent into Vacuumdrier, control vacuum tightness-0.09～0.03 kpa in drying machine, 35～60 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin finished product.
The present invention be choose fresh pineapple peel, pineapple bran is raw material; Clear water washes away impurity, enters in steam cooker and adds contained enzyme in water boil passivation pineapple peel, slag, stops its decomposition to pectin; Adopted again clear water to rinse to colourless; Be placed in extractor, add water, citric acid, control condition is carried out twice intensification and is extracted pectin, and solid-liquid separation, obtains pectin extracting soln; Filter, obtain pectin clear liquor, then carry out adding gac after vacuum concentration, stir decolouring; Alcohol precipitation, filters, and obtains pectin precipitation; Vacuum dehydrating at lower temperature, obtains pectin finished product.In extraction process of the present invention, acid is carried pectin and is adopted citric acid as auxiliary agent, makes pineapple peel, the contained pectin of slag be easy to be converted into soluble pectin, and citric acid can be oxidized rapidly in human body metabolic processes, can not putting aside and cause acid detrimental effect, is safe and harmless concerning human body; In addition, citric acid other acid of comparing, in reaction process, PH can keep relative balance, and reaction process is gentle, and energy consumption is low, and safety is pollution-free, and production cost is low; Ethanolic soln used carries out alcohol precipitation pectin, and it is volatile, and the dissolvent residual obtaining in thing is few.Extracting method technique of the present invention is reasonable, easy and simple to handle, and in leaching process, agents useful for same is few, and equipment used is simple, can carry out large-scale industrial production; The product making by the method has been preserved nutritive ingredients all in raw material, and the security of product is good.According to measuring, its pectin extraction rate reaches 25%～30%.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details.
embodiment mono-
Utilize a method for pineapple peel, slag extraction pectin, process following process steps:
A, raw material are chosen pineapple peel after Choice and process can, fresh, pineapple bran is raw material;
B, boil Passivation Treatment owing to itself containing a certain amount of enzyme in fresh pineapple peel, pineapple bran, its existence can impel pectin, the effect of extracting pectin is declined, or can cause extracting unsuccessfully.Therefore, pineapple peel, slag raw material that step (a) is selected adopt clear water to rinse, remove surperficial impurity, take 100kg and put into steam cooker, the water boil 15min that adds 2.5 times of pineapple peel, slag amount, contained enzyme in passivation pineapple peel, slag, loses activity it, stops its decomposition to pectin;
C, washing, dehydration adopt clear water washing to colourless the pineapple peel, the slag that in step (b), boil after Passivation Treatment, then put into filter cloth and carry out press dewatering;
D, acid are carried pineapple peel, slag after press dewatering in step (c) are put into extractor, add the water of 2.5 times of pineapple peel, slag amount, stir; Then 0.8% the citric acid powder that adds pineapple peel, slag amount after dehydration, regulates pH value to 2.6, is warming up to 58 ℃, keeps 1 hour; Then be warming up to 82 ℃, keep 1 hour, extract pectin wherein; After pectin extraction, be transferred in whizzer, control centrifuge speed 1500r/min, carry out solid-liquid separation, obtain pectin extracting soln;
E, filtration adopt 150 object filter screens to filter the resulting pectin extracting soln of step (d), remove impurity, obtain pectin clear liquor;
F, concentrated the resulting pectin clear liquor of step (e) is inserted in vacuum concentrator, control vacuum concentrator vacuum tightness 0.05MPa, temperature 70 C, being concentrated into clear liquor concentration is 8%, obtains fructose concentrating liquid;
G, decolouring will add the gac of concentrated solution quality 2% in the resulting fructose concentrating liquid of step (f), control temperature 70 C, stir decolouring 45min;
It is 92% ethanolic soln that fructose concentrating liquid after h, alcohol precipitation process step (g) decolouring adds concentration, and addition is 50% of fructose concentrating liquid quality, adopts the mode that stirs while adding, until precipitation is separated out completely; Use again 150 order filtered through gauze, collect pectin precipitation;
I, dry the resulting pectin precipitation of step (h) is sent into Vacuumdrier, control vacuum tightness 0.01kpa in drying machine, temperature 45 C, carries out vacuum dehydrating at lower temperature, obtains pectin 29.8kg.
embodiment bis-
Utilize a method for pineapple peel, slag extraction pectin, process following process steps:
A, raw material are chosen and selected fresh pineapple peel, pineapple bran is raw material;
B, boil Passivation Treatment and adopt clear water to rinse the selected pineapple peel of step (a), slag raw material, remove surperficial impurity, take 200kg and put into steam cooker, the water boil 20min that adds 3 times of pineapple peel, slag amount, contained polygalacturonase in passivation pineapple peel, slag, it is lost activity, stop its decomposition to pectin;
C, washing, dehydration adopt clear water washing to colourless the pineapple peel, the slag that in step (b), boil after Passivation Treatment, then put into filter cloth and carry out press dewatering;
D, acid are carried pineapple peel, slag after press dewatering in step (c) are put into extractor, add the water of 3 times of pineapple peel, slag amount, stir; Then 1% the citric acid powder that adds pineapple peel, slag amount after dehydration, regulates pH value to 2.5, is warming up to 60 ℃, keeps 1 hour; Then be warming up to 80 ℃, keep 1 hour, extract pectin wherein; After pectin extraction, be transferred in whizzer, control centrifuge speed 2000r/min, carry out solid-liquid separation, obtain pectin extracting soln;
E, filtration adopt 200 object filter screens to filter the resulting pectin extracting soln of step (d), remove impurity, obtain pectin clear liquor;
F, concentrated the resulting pectin clear liquor of step (e) is inserted in vacuum concentrator, control vacuum concentrator vacuum tightness 0.07MPa, 80 ℃ of temperature, being concentrated into clear liquor concentration is 10%, obtains fructose concentrating liquid;
G, decolouring will add the gac of concentrated solution quality 3% in the resulting fructose concentrating liquid of step (f), control temperature 60 C, stir decolouring 60min;
It is 95% ethanolic soln that fructose concentrating liquid after h, alcohol precipitation process step (g) decolouring adds concentration, and addition is 40% of fructose concentrating liquid quality, adopts the mode that stirs while adding, until precipitation is separated out completely; Use again 200 order filtered through gauze, collect pectin precipitation;
I, dry the resulting pectin precipitation of step (h) is sent into Vacuumdrier, control vacuum tightness 0.03 kpa in drying machine, 35 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin 55.2kg.
embodiment tri-
Utilize a method for pineapple peel, slag extraction pectin, process following process steps:
A, raw material are chosen and selected fresh pineapple peel, pineapple bran is raw material;
B, boil Passivation Treatment and adopt clear water to rinse the selected pineapple peel of step (a), slag raw material, remove surperficial impurity, take 100kg and put into steam cooker, water boil 10 min that add 2 times of pineapple peel, slag amount, contained polygalacturonase in passivation pineapple peel, slag, it is lost activity, stop its decomposition to pectin;
C, washing, dehydration adopt clear water washing to colourless the pineapple peel, the slag that in step (b), boil after Passivation Treatment, then put into filter cloth and carry out press dewatering;
D, acid are carried pineapple peel, slag after press dewatering in step (c) are put into extractor, add the water of 2 times of pineapple peel, slag amount, stir; Then 0.5% the citric acid powder that adds pineapple peel, slag amount after dehydration, regulates pH value to 3.0, is warming up to 55 ℃, keeps 1 hour; Then be warming up to 85 ℃, keep 1 hour, extract pectin wherein; After pectin extraction, be transferred in whizzer, control centrifuge speed 1800r/min, carry out solid-liquid separation, obtain pectin extracting soln;
E, filtration adopt 100 object filter screens to filter the resulting pectin extracting soln of step (d), remove impurity, obtain pectin clear liquor;
F, concentrated the resulting pectin clear liquor of step (e) is inserted in vacuum concentrator, control vacuum concentrator vacuum tightness 0.03MPa, temperature 60 C, being concentrated into clear liquor concentration is 5%, obtains fructose concentrating liquid;
G, decolouring will add the gac of concentrated solution quality 1% in the resulting fructose concentrating liquid of step (f), control 80 ℃ of temperature, stir decolouring 30min;
It is 90% ethanolic soln that fructose concentrating liquid after h, alcohol precipitation process step (g) decolouring adds concentration, and addition is 60% of fructose concentrating liquid quality, adopts the mode that stirs while adding, until precipitation is separated out completely; Use again 100 order filtered through gauze, collect pectin precipitation;
I, dry the resulting pectin precipitation of step (h) is sent into Vacuumdrier, control vacuum tightness-0.09kpa in drying machine, temperature 60 C, carries out vacuum dehydrating at lower temperature, obtains pectin 28.6kg.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (1)
1. utilize pineapple peel, slag to extract a method for pectin, it is characterized in that: process following process steps:
A, raw material are chosen fresh pineapple peel, pineapple bran is raw material;
B, boil Passivation Treatment and adopt clear water to rinse the selected pineapple peel of step (a), slag raw material, remove surperficial impurity, then put into water boil 10～20min that steam cooker adds 2～3 times of pineapple peel, slag amount, contained enzyme in passivation pineapple peel, slag, it is lost activity, stop its decomposition to pectin;
C, washing, dehydration adopt clear water washing to colourless the pineapple peel, the slag that in step (b), boil after Passivation Treatment, then put into filter cloth and carry out press dewatering;
D, acid are carried pineapple peel, slag after press dewatering in step (c) are put into extractor, add the water of 2～3 times of pineapple peel, slag amount, stir; Then 0.5～1% the citric acid that adds pineapple peel, slag amount after dehydration, regulates pH value to 2.5～3.0, is warming up to 55～60 ℃, keeps 1 hour; Then be warming up to 80～85 ℃, keep 1 hour, extract pectin wherein; After pectin extraction, be transferred in whizzer, solid-liquid separation, obtains pectin extracting soln;
E, filtration adopt 100～200 object filter screens to filter the resulting pectin extracting soln of step (d), remove impurity, obtain pectin clear liquor;
F, concentrated the resulting pectin clear liquor of step (e) is inserted in vacuum concentrator, control vacuum concentrator vacuum tightness 0.03～0.07MPa, 60～80 ℃ of temperature, being concentrated into clear liquor concentration is 5～10%, obtains fructose concentrating liquid;
G, decolouring will add the gac of concentrated solution quality 1～3% in the resulting fructose concentrating liquid of step (f), control 60～80 ℃ of temperature, stir decolouring 30～60min;
It is 90～95% ethanolic soln that fructose concentrating liquid after h, alcohol precipitation process step (g) decolouring adds concentration, and addition is 40～60% of fructose concentrating liquid quality, adopts the mode that stirs while adding, until precipitation is separated out completely; Use again 100～200 order filtered through gauze, collect pectin precipitation;
I, dry the resulting pectin precipitation of step (h) is sent into Vacuumdrier, control vacuum tightness-0.09～0.03 kpa in drying machine, 35～60 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310609239.4A CN103641931A (en) | 2013-11-27 | 2013-11-27 | Method for extraction of pectin from pineapple peels and residue |
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| CN201310609239.4A CN103641931A (en) | 2013-11-27 | 2013-11-27 | Method for extraction of pectin from pineapple peels and residue |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211831A (en) * | 2014-07-31 | 2014-12-17 | 新疆阜丰生物科技有限公司 | Preparation method of low-methoxyl pectin |
| CN104211831B (en) * | 2014-07-31 | 2017-01-04 | 新疆阜丰生物科技有限公司 | A kind of preparation method of hypo-methoxy pectin |
| CN109111532A (en) * | 2018-09-30 | 2019-01-01 | 三门峡源丰生物科技有限公司 | A kind of pectin extraction method |
| CN109938151A (en) * | 2019-04-20 | 2019-06-28 | 高卫东 | A kind of processing of pomelo's sugar sweet and production method |
| CN111499772A (en) * | 2019-06-30 | 2020-08-07 | 浙江大学 | Method for co-recovering alkaline water/acid water and pectin in orange peel in orange can processing |
| CN114951239A (en) * | 2022-05-25 | 2022-08-30 | 成都工业学院 | Method for recovering grape pomace to prepare derivative raw material in wine brewing process |
| CN115448435A (en) * | 2022-08-23 | 2022-12-09 | 华北水利水电大学 | Method for preparing coagulant aid by using jack fruit peel and application |
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| CN101942036A (en) * | 2009-07-08 | 2011-01-12 | 李浩贤 | Method for extracting pectin from pineapple peel assisted by ultrasonic wave |
| CN102816455A (en) * | 2012-08-06 | 2012-12-12 | 集美大学 | Method for extracting pigment and pectin from pineapple peels |
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| CN102816455A (en) * | 2012-08-06 | 2012-12-12 | 集美大学 | Method for extracting pigment and pectin from pineapple peels |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211831A (en) * | 2014-07-31 | 2014-12-17 | 新疆阜丰生物科技有限公司 | Preparation method of low-methoxyl pectin |
| CN104211831B (en) * | 2014-07-31 | 2017-01-04 | 新疆阜丰生物科技有限公司 | A kind of preparation method of hypo-methoxy pectin |
| CN109111532A (en) * | 2018-09-30 | 2019-01-01 | 三门峡源丰生物科技有限公司 | A kind of pectin extraction method |
| CN109111532B (en) * | 2018-09-30 | 2020-07-14 | 三门峡源丰果业有限公司 | Pectin extraction method |
| CN109938151A (en) * | 2019-04-20 | 2019-06-28 | 高卫东 | A kind of processing of pomelo's sugar sweet and production method |
| CN109938151B (en) * | 2019-04-20 | 2022-04-26 | 高卫东 | Processing and manufacturing method of pomelo peel candy |
| CN111499772A (en) * | 2019-06-30 | 2020-08-07 | 浙江大学 | Method for co-recovering alkaline water/acid water and pectin in orange peel in orange can processing |
| CN111499772B (en) * | 2019-06-30 | 2021-05-11 | 浙江大学 | Method for co-recovering alkaline water/acid water and pectin in orange peel in orange can processing |
| CN114951239A (en) * | 2022-05-25 | 2022-08-30 | 成都工业学院 | Method for recovering grape pomace to prepare derivative raw material in wine brewing process |
| CN114951239B (en) * | 2022-05-25 | 2023-11-21 | 成都工业学院 | Method for recycling raw materials of grape pomace preparation derivative in brewing process |
| CN115448435A (en) * | 2022-08-23 | 2022-12-09 | 华北水利水电大学 | Method for preparing coagulant aid by using jack fruit peel and application |
| CN115448435B (en) * | 2022-08-23 | 2023-11-28 | 华北水利水电大学 | Method for preparing coagulant aid by utilizing jackfruit peel and application |
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Application publication date: 20140319 |