CN103641932A - Method for extraction of pectin from orange peels - Google Patents
Method for extraction of pectin from orange peels Download PDFInfo
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- CN103641932A CN103641932A CN201310609351.8A CN201310609351A CN103641932A CN 103641932 A CN103641932 A CN 103641932A CN 201310609351 A CN201310609351 A CN 201310609351A CN 103641932 A CN103641932 A CN 103641932A
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Abstract
The invention relates to a method for extraction of pectin from orange peels. The metod includes: selecting air dried orange peels as raw materials, crushing the peels into particles, subjecting the particles to warm water soaking for softening, then conducting boiling to passivate enzyme contained in the orange peels so as to prevent pectin decomposition; then flushing the orange peel particles to colorless by clear water; placing the orange peel particles in a reaction pot, adding citric acid, controlling conditions to perform pectin extraction, and carrying out solid-liquid separation to obtain a pectin extract solution; adding activated carbon into the pectin extract solution, conducting stirring decolorization, performing filtering to remove impurities, carrying out vacuum concentration, then adding an ethanol solution to conduct alcohol precipitation and filtration, collecting precipitates, and performing 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 and short preparation period. The product prepared by the method preserves all nutritional components in the raw materials, has good safety, and the pectin yield is high.
Description
Technical field
The present invention relates to the preparation of pectin, especially a kind of method of extracting pectin from orange peel.
Background technology
We know, the pectin extracting from plant is identified as one of 21st century food function composition, be called as " balancing agent of HUMAN HEALTH ", be mainly used in foodstuff additive, as thickening material, gelifying agent, stablizer, for fat agent, emulsifying agent etc., also can be used as water-soluble dietary fibre for reducing blood pressure and blood lipoid, promote the absorption of VITAMIN, prevent lead poisoning, prevent and treat the health cares such as arteriosclerosis.And pectin is a class natural high moleculer eompound, be mainly present in all higher plants, be 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.In edible plant, there are many vegetables, fruit to contain pectin.In the pericarp such as oranges and tangerines, shaddock, approximately containing 30% pectin, be the abundantest source of pectin.
The pectin how extracting in orange peel is a problem demanding prompt solution.
Summary of the invention
The object of this invention is to provide a kind of method of extracting pectin from orange peel, this extracting method technique simple possible, preparation cycle is short, production cost is low, pectin yield is high.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of extracting pectin from orange peel, is characterized in that: process following process steps:
That a, raw material are chosen is fresh, without the peel of Citrus reticulata Blanco going mouldy, be placed on cool place, ventilation natural air drying, standby;
B, macerating of temperature, boil and process the small-particle that the peel of Citrus reticulata Blanco of natural air drying in step (a) is broken into 3～5mm, then be placed in stainless steel reaction pot, the water that adds 4～5 times of peel of Citrus reticulata Blanco granular masss, under the condition stirring, be heated to 50～60 ℃, soak 1～2h, make its water suction softening, remove carbohydrate, bitter taste and soluble impurity in peel of Citrus reticulata Blanco; After peel of Citrus reticulata Blanco particle after softening is drained away the water, then add the water of 4～5 times of peel of Citrus reticulata Blanco granular masss, heated and boiled 10～20min, with enzyme contained in passivation peel of Citrus reticulata Blanco, loses activity it, stops its decomposition to pectin;
C, rinse the peel of Citrus reticulata Blanco particle that step (b) is boiled after processing that discolors and repeatedly rinse to colourless with clear water;
D, acid are carried the peel of Citrus reticulata Blanco particle that step (c) flushing is discolored after processing and are placed in stainless steel reaction pot, the water that adds 8～10 times of peel of Citrus reticulata Blanco granular masss, the citric acid that adds again peel of Citrus reticulata Blanco granular mass 0.5～1%, regulate pH value to 2.0～3.0, control 80～85 ℃ of temperature, stir and extract 50～60min; After pectin extraction, be transferred in whizzer, solid-liquid separation, obtains pectin extracting soln;
E, decolouring, filtration will add the gac of pectin extracting soln liquid quality 1～3% to do flocculating aids in the resulting pectin extracting soln of step (d) while hot, stir decolouring 30～60min; Then utilize 100～200 object filter clothes to filter, remove peel of Citrus reticulata Blanco small-particle and other insoluble impuritiess, obtain the de-filtered liquid of pectin charcoal;
F, concentrated the de-filtered liquid of the resulting pectin charcoal of step (e) is inserted in vacuum concentrator, control vacuum tightness 0.03～0.07MPa, temperature is 60～80 ℃, and carrying out vacuum concentration to filter liquor concentration is 5～10%, obtains fructose concentrating liquid;
It is 90～95% ethanolic soln that g, alcohol precipitation add concentration by the resulting fructose concentrating liquid of step (f), 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;
H, the dry pectin precipitation that step (g) is collected are sent into Vacuumdrier, control vacuum tightness-0.09～0.03 kpa in drying machine, and 35～60 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin finished product.
The present invention chooses air-dry peel of Citrus reticulata Blanco to be broken into particle, after warm water soaking is softening, boils enzyme contained in passivation peel of Citrus reticulata Blanco, stops the decomposition to pectin; Adopted again clear water to rinse to colourless; Be placed in reactor, add water, citric acid, control condition is carried out pectin extraction, and solid-liquid separation obtains pectin extracting soln; Pectin extracting soln adds gac to stir decolouring, filters and removes impurity, then after vacuum concentration, add ethanolic soln to carry out alcohol precipitation, filter, and collecting 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 the contained pectin of peel of Citrus reticulata Blanco 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 equipment used is simple, and preparation cycle is short; 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 more than 26%.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details.
embodiment mono-
From orange peel, extract a method for pectin, process following process steps:
That a, raw material are chosen is fresh, without the peel of Citrus reticulata Blanco going mouldy, be placed on cool place, ventilation natural air drying, standby;
B, macerating of temperature, boil and process the small-particle that the peel of Citrus reticulata Blanco of natural air drying in step (a) is broken into 4mm left and right, taking this peel of Citrus reticulata Blanco particle 100kg is placed in stainless steel reaction pot, the water that adds 4.5 times of peel of Citrus reticulata Blanco granular masss, under the condition stirring, be heated to 55 ℃, soak 1.5h, make its water suction softening, remove carbohydrate, bitter taste and soluble impurity in peel of Citrus reticulata Blanco; Owing to itself containing a certain amount of enzyme in peel of Citrus reticulata Blanco, its existence can impel pectin, the effect of extracting pectin is declined, or cause extracting unsuccessfully, therefore, after peel of Citrus reticulata Blanco particle after softening is drained away the water, the water that adds again 4.5 times of peel of Citrus reticulata Blanco granular masss, heated and boiled 15min, with enzyme contained in passivation peel of Citrus reticulata Blanco, it is lost activity, stop its decomposition to pectin;
C, flushing are rinsed to colourless repeatedly with clear water after discoloring step (b) being boiled to the peel of Citrus reticulata Blanco particle taking-up after processing;
D, acid are carried the peel of Citrus reticulata Blanco particle that step (c) flushing is discolored after processing and are placed in stainless steel reaction pot, add the water of 9 times of peel of Citrus reticulata Blanco granular masss, then add the citric acid of peel of Citrus reticulata Blanco granular mass 0.8%, regulate pH value to 2.5, control 80 ℃ of temperature, stir and extract 55min; After pectin extraction, be transferred in whizzer, control centrifuge speed 1500r/min, carry out solid-liquid separation, obtain pectin extracting soln;
E, decolouring, filtration will add the gac of pectin extracting soln liquid quality 2% to do flocculating aids in the resulting pectin extracting soln of step (d) while hot, stir decolouring 45min; Then utilize 150 object filter clothes to filter, remove peel of Citrus reticulata Blanco small-particle and other insoluble impuritiess, obtain the de-filtered liquid of pectin charcoal;
F, concentrated the de-filtered liquid of the resulting pectin charcoal of step (e) is inserted in vacuum concentrator, control vacuum tightness 0.05MPa, temperature is 70 ℃, and carrying out vacuum concentration to filter liquor concentration is 8%, obtains fructose concentrating liquid;
It is 92% ethanolic soln that g, alcohol precipitation add concentration by the resulting fructose concentrating liquid of step (f), 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;
H, the dry pectin precipitation that step (g) is collected are sent into Vacuumdrier, control vacuum tightness 0.01 kpa in drying machine, and temperature 45 C, carries out vacuum dehydrating at lower temperature, obtains pectin 28.5kg.
embodiment bis-
A method of extracting pectin from orange peel, is characterized in that: process following process steps:
That a, raw material are chosen is fresh, without the peel of Citrus reticulata Blanco going mouldy, be placed on cool place, ventilation natural air drying, standby;
B, macerating of temperature, boil and process the small-particle that the peel of Citrus reticulata Blanco of natural air drying in step (a) is broken into 5mm, taking this peel of Citrus reticulata Blanco particle 200kg is placed in stainless steel reaction pot, the water that adds 5 times of peel of Citrus reticulata Blanco granular masss, under the condition stirring, be heated to 50 ℃, soak 2h, make its water suction softening, remove carbohydrate, bitter taste and soluble impurity in peel of Citrus reticulata Blanco; After peel of Citrus reticulata Blanco particle after softening is drained away the water, then add the water of 5 times of peel of Citrus reticulata Blanco granular masss, heated and boiled 20min, with enzyme contained in passivation peel of Citrus reticulata Blanco, loses activity it, stops its decomposition to pectin;
C, rinse the peel of Citrus reticulata Blanco particle that step (b) is boiled after processing that discolors and repeatedly rinse to colourless with clear water;
D, acid are carried the peel of Citrus reticulata Blanco particle that step (c) flushing is discolored after processing and are placed in stainless steel reaction pot, add the water of 10 times of peel of Citrus reticulata Blanco granular masss, then add the citric acid of peel of Citrus reticulata Blanco granular mass 1%, regulate pH value to 2.0, control 85 ℃ of temperature, stir and extract 50min; After pectin extraction, be transferred in whizzer, control centrifuge speed 2000r/min, solid-liquid separation, obtains pectin extracting soln;
E, decolouring, filtration will add the gac of pectin extracting soln liquid quality 3% to do flocculating aids in the resulting pectin extracting soln of step (d) while hot, stir decolouring 60min; Then utilize 200 object filter clothes to filter, remove peel of Citrus reticulata Blanco small-particle and other insoluble impuritiess, obtain the de-filtered liquid of pectin charcoal;
F, concentrated the de-filtered liquid of the resulting pectin charcoal of step (e) is inserted in vacuum concentrator, control vacuum tightness 0.07MPa, temperature is 60 ℃, and carrying out vacuum concentration to filter liquor concentration is 10%, obtains fructose concentrating liquid;
It is 90% ethanolic soln that g, alcohol precipitation add concentration by the resulting fructose concentrating liquid of step (f), and addition is 60 % 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;
H, the dry pectin precipitation that step (g) is collected are sent into Vacuumdrier, control vacuum tightness 0.03 kpa in drying machine, and 35 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin 54.6kg.
embodiment tri-
From orange peel, extract a method for pectin, process following process steps:
That a, raw material are chosen is fresh, without the peel of Citrus reticulata Blanco going mouldy, be placed on cool place, ventilation natural air drying, standby;
B, macerating of temperature, boil and process the small-particle that the peel of Citrus reticulata Blanco of natural air drying in step (a) is broken into 3mm, taking this peel of Citrus reticulata Blanco particle 100kg is placed in stainless steel reaction pot, the water that adds 4 times of peel of Citrus reticulata Blanco granular masss, under the condition stirring, be heated to 60 ℃, soak 1h, make its water suction softening, remove carbohydrate, bitter taste and soluble impurity in peel of Citrus reticulata Blanco; After peel of Citrus reticulata Blanco particle after softening is drained away the water, then add the water of 4 times of peel of Citrus reticulata Blanco granular masss, heated and boiled 10min, with enzyme contained in passivation peel of Citrus reticulata Blanco, loses activity it, stops its decomposition to pectin;
C, rinse the peel of Citrus reticulata Blanco particle that step (b) is boiled after processing that discolors and repeatedly rinse to colourless with clear water;
D, acid are carried the peel of Citrus reticulata Blanco particle that step (c) flushing is discolored after processing and are placed in stainless steel reaction pot, add the water of 8 times of peel of Citrus reticulata Blanco granular masss, then add the citric acid of peel of Citrus reticulata Blanco granular mass 0.5%, regulate pH value to 3.0, control 85 ℃ of temperature, stir and extract 50min; After pectin extraction, be transferred in whizzer, control centrifuge speed 1800r/min, carry out solid-liquid separation, obtain pectin extracting soln;
E, decolouring, filtration will add the gac of pectin extracting soln liquid quality 1% to do flocculating aids in the resulting pectin extracting soln of step (d) while hot, stir decolouring 60min; Then utilize 100 object filter clothes to filter, remove peel of Citrus reticulata Blanco small-particle and other insoluble impuritiess, obtain the de-filtered liquid of pectin charcoal;
F, concentrated the de-filtered liquid of the resulting pectin charcoal of step (e) is inserted in vacuum concentrator, control vacuum tightness 0.03MPa, temperature is 80 ℃, and carrying out vacuum concentration to filter liquor concentration is 5%, obtains fructose concentrating liquid;
It is 95% ethanolic soln that g, alcohol precipitation add concentration by the resulting fructose concentrating liquid of step (f), and addition is 40 % 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;
H, the dry pectin precipitation that step (g) is collected are sent into Vacuumdrier, control vacuum tightness-0.09kpa in drying machine, and temperature 60 C, carries out vacuum dehydrating at lower temperature, obtains pectin 26.3 kg.
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. from orange peel, extract a method for pectin, it is characterized in that: process following process steps:
That a, raw material are chosen is fresh, without the peel of Citrus reticulata Blanco going mouldy, be placed on cool place, ventilation natural air drying, standby;
B, macerating of temperature, boil and process the small-particle that the peel of Citrus reticulata Blanco of natural air drying in step (a) is broken into 3～5mm, then be placed in stainless steel reaction pot, the water that adds 4～5 times of peel of Citrus reticulata Blanco granular masss, under the condition stirring, be heated to 50～60 ℃, soak 1～2h, make its water suction softening, remove carbohydrate, bitter taste and soluble impurity in peel of Citrus reticulata Blanco; After peel of Citrus reticulata Blanco particle after softening is drained away the water, then add the water of 4～5 times of peel of Citrus reticulata Blanco granular masss, heated and boiled 10～20min, with enzyme contained in passivation peel of Citrus reticulata Blanco, loses activity it, stops its decomposition to pectin;
C, rinse the peel of Citrus reticulata Blanco particle that step (b) is boiled after processing that discolors and repeatedly rinse to colourless with clear water;
D, acid are carried the peel of Citrus reticulata Blanco particle that step (c) flushing is discolored after processing and are placed in stainless steel reaction pot, the water that adds 8～10 times of peel of Citrus reticulata Blanco granular masss, the citric acid that adds again peel of Citrus reticulata Blanco granular mass 0.5～1%, regulate pH value to 2.0～3.0, control 80～85 ℃ of temperature, stir and extract 50～60min; After pectin extraction, be transferred in whizzer, solid-liquid separation, obtains pectin extracting soln;
E, decolouring, filtration will add the gac of pectin extracting soln liquid quality 1～3% to do flocculating aids in the resulting pectin extracting soln of step (d) while hot, stir decolouring 30～60min; Then utilize 100～200 object filter clothes to filter, remove peel of Citrus reticulata Blanco small-particle and other insoluble impuritiess, obtain the de-filtered liquid of pectin charcoal;
F, concentrated the de-filtered liquid of the resulting pectin charcoal of step (e) is inserted in vacuum concentrator, control vacuum tightness 0.03～0.07MPa, temperature is 60～80 ℃, and carrying out vacuum concentration to filter liquor concentration is 5～10%, obtains fructose concentrating liquid;
It is 90～95% ethanolic soln that g, alcohol precipitation add concentration by the resulting fructose concentrating liquid of step (f), 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;
H, the dry pectin precipitation that step (g) is collected are sent into Vacuumdrier, control vacuum tightness-0.09～0.03 kpa in drying machine, and 35～60 ℃ of temperature, carry out vacuum dehydrating at lower temperature, obtain pectin finished product.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086668A (en) * | 2014-06-11 | 2014-10-08 | 安徽农业大学 | Method for preparing pectin coproduced with synephrine from citrus fruit processing residues |
| CN105042334A (en) * | 2015-06-08 | 2015-11-11 | 苏州冰之火能源科技有限公司 | Green natural type hydrate inhibitor and preparation method thereof |
| CN106666519A (en) * | 2016-12-12 | 2017-05-17 | 湖北工业大学 | Fat substitute containing active ingredients of pomelo peel, as well as preparation method and application thereof |
| CN106722476A (en) * | 2016-12-12 | 2017-05-31 | 湖北工业大学 | Fat substitute and preparation method and application containing orange peel active component |
| CN106749738A (en) * | 2016-12-28 | 2017-05-31 | 佛山市海科知识产权交易有限公司 | A kind of method of extraction and purified polysaccharide from orange peel |
| CN107652372A (en) * | 2017-10-26 | 2018-02-02 | 华中农业大学 | A kind of orange peel pectin without alcohol extracting method |
| CN108641012A (en) * | 2018-03-12 | 2018-10-12 | 湖北大学知行学院 | A method of extracting pectin by raw material of wild elephant skin mandarin orange |
| CN108670976A (en) * | 2018-04-13 | 2018-10-19 | 安徽宇宁果胶股份有限公司 | A kind of production method of the special pectin of tartro-bismuthate |
| CN111171179A (en) * | 2020-01-15 | 2020-05-19 | 中国农业科学院农产品加工研究所 | Citrus pectin with intestinal probiotic function and preparation method and application thereof |
| CN112167576A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Longan and red date tea sauce and preparation method thereof |
| CN112167581A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Lemon elderberry flower fruit solution and preparation method thereof |
| CN112167577A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Brown sugar, red date and ginger tea sauce and preparation method thereof |
| CN114014951A (en) * | 2021-11-30 | 2022-02-08 | 张东坡 | Production process of alcohol-free instant pectin |
| CN114835832A (en) * | 2022-05-11 | 2022-08-02 | 浙江丰岛食品股份有限公司 | Method for extracting pectin from fresh orange peel |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086668A (en) * | 2014-06-11 | 2014-10-08 | 安徽农业大学 | Method for preparing pectin coproduced with synephrine from citrus fruit processing residues |
| CN105042334A (en) * | 2015-06-08 | 2015-11-11 | 苏州冰之火能源科技有限公司 | Green natural type hydrate inhibitor and preparation method thereof |
| CN105042334B (en) * | 2015-06-08 | 2018-06-22 | 苏州冰之火能源科技有限公司 | A kind of green natural type hydrate inhibitor and preparation method thereof |
| CN106666519A (en) * | 2016-12-12 | 2017-05-17 | 湖北工业大学 | Fat substitute containing active ingredients of pomelo peel, as well as preparation method and application thereof |
| CN106722476A (en) * | 2016-12-12 | 2017-05-31 | 湖北工业大学 | Fat substitute and preparation method and application containing orange peel active component |
| CN106749738A (en) * | 2016-12-28 | 2017-05-31 | 佛山市海科知识产权交易有限公司 | A kind of method of extraction and purified polysaccharide from orange peel |
| CN107652372A (en) * | 2017-10-26 | 2018-02-02 | 华中农业大学 | A kind of orange peel pectin without alcohol extracting method |
| CN108641012A (en) * | 2018-03-12 | 2018-10-12 | 湖北大学知行学院 | A method of extracting pectin by raw material of wild elephant skin mandarin orange |
| CN108670976A (en) * | 2018-04-13 | 2018-10-19 | 安徽宇宁果胶股份有限公司 | A kind of production method of the special pectin of tartro-bismuthate |
| CN111171179A (en) * | 2020-01-15 | 2020-05-19 | 中国农业科学院农产品加工研究所 | Citrus pectin with intestinal probiotic function and preparation method and application thereof |
| CN111171179B (en) * | 2020-01-15 | 2021-11-16 | 中国农业科学院农产品加工研究所 | Citrus pectin with intestinal probiotic function and preparation method and application thereof |
| CN112167576A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Longan and red date tea sauce and preparation method thereof |
| CN112167581A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Lemon elderberry flower fruit solution and preparation method thereof |
| CN112167577A (en) * | 2020-09-09 | 2021-01-05 | 东莞市宝来食品有限公司 | Brown sugar, red date and ginger tea sauce and preparation method thereof |
| CN114014951A (en) * | 2021-11-30 | 2022-02-08 | 张东坡 | Production process of alcohol-free instant pectin |
| CN114014951B (en) * | 2021-11-30 | 2022-08-30 | 张东坡 | Production process of alcohol-free instant pectin |
| CN114835832A (en) * | 2022-05-11 | 2022-08-02 | 浙江丰岛食品股份有限公司 | Method for extracting pectin from fresh orange peel |
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Application publication date: 20140319 |