CN101240038A - Method for extracting high grade low-ester pectin from climbing fig seed by employing water extraction method - Google Patents
Method for extracting high grade low-ester pectin from climbing fig seed by employing water extraction method Download PDFInfo
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- CN101240038A CN101240038A CNA2008100467441A CN200810046744A CN101240038A CN 101240038 A CN101240038 A CN 101240038A CN A2008100467441 A CNA2008100467441 A CN A2008100467441A CN 200810046744 A CN200810046744 A CN 200810046744A CN 101240038 A CN101240038 A CN 101240038A
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Abstract
A high quality low methoxyl pectin extracting process from seeds of ficus pumila by water extraction, which uses seeds of ficus pumila as raw material. The pectin is obained by steps of selecting material, removing impurity, drying, then extracting by water, filtering, superfilting, concentrating, charging water to dilute and direct spray drying. Low methoxyl pectin extracted from seeds of ficus pumila of the invention is light in color, high in purity, can easily dissolves in water, other physical and chemical index all reach or exceed present national standard of pectin.
Description
Technical field
The present invention relates to the foodstuff additive manufacture field, particularly a kind of method that adopts aqueous extraction method from the climbing fig seed, to extract high grade low-ester pectin.
Background technology
Xue Li belongs to the Moraceae Ficus, also claim cotton rose, bean jelly tree, climb Shi Hu, fruit of Climbing Fig, Semen Vaccariae etc., can dispel rheumatism, logical blood is active, detoxify and promote the subsdence of swelling, cure mainly diseases such as rheumatic arthralgia, sciatica, all produce in Chinese most of area, seeks connections with on ancient tree, broken roofs and toppling walls, ancient stone bridge and the flower garden enclosure wall of front and back, village, the foot of the hill, out-of-the-way mountain area, both sides of highway more.Studies show that climbing fig seed (also claiming the bean jelly fruit) has rich nutrient contents, wherein contains protein 15.70%, robust fibre 26.20%, total flavones 2.08%, pectin 5.73～10.82% (place of production difference, slightly variant).And wherein pectin composition mainly is present in the epidermal area of seed, is a kind of very ideal pectin resource.
In the prior art, extraction to climbing fig seed pectin all has some reports both at home and abroad, having introduced the acid extraction method as " food and fermentation industries " 2000 the 26th the 6th phases of volume adopts aqueous extraction method to extract the method for high grade low-ester pectin from the climbing fig seed: the water that adds 10 times of raw material weights, regulate pH value to 3.0 with dilute hydrochloric acid, stir down 1h at 80 ℃, filter cloth filters that final vacuum concentrates, behind the ethanol sedimentation, vacuum-drying pectin.National inventing patent CN200510034920.6 discloses the preparation method of a kind of climbing fig seed glue and climbing fig seed gelling rubber powder, wherein climbing fig seed glue extraction process is, the water that adds 7.5～12.5 times of raw material weights, adding acid for adjusting pH is 2.5～4.5,70～80 ℃, extract 1～1.5h, filter cleaner directly concentrates and obtains concentrated solution, condensed cream and climbing fig rubber powder.
More than two kinds of methods adopt acid extraction method commonly used in the industry to extract climbing fig seed pectin, its general technology is: acid extraction, behind the vacuum concentration ethanol precipitation make pectin or directly vacuum concentration get fructose concentrating liquid, condensed cream and pectin powder.Have following problem: on the one hand, under the peracid hot conditions, the prolongation of extraction time easily makes pectin degrading, influences the pectin quality.On the other hand, vacuum Concentrating Process energy consumption height is unfavorable for suitability for industrialized production.
Summary of the invention
The purpose of this invention is to provide a kind of method that adopts aqueous extraction method from the climbing fig seed, to extract high grade low-ester pectin.This method is simple, can realize industrialization, and gained pectin quality is good.
In order to achieve the above object, the present invention adopts following technical measures:
The climbing fig seed was picked the back cross 20 mesh sieves, and removed climbing fig petal and silt, 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed, with passivation enzyme wherein.Climbing fig seed after the oven dry is dropped in the reactor, and the water that adds 25～35 times of weight mixes, and 45～60min is fully stirred in heat temperature raising to 60～70 ℃, after plate-and-frame filter press filters filtrate.The filtrate that obtains is played filter, concentrated, the water dilution that promptly adds 1.0～1.5 times of weight, under 25～35 ℃, feed pressure is that the ultra-filtration membrane that 0.1～0.3Mpa selects for use is a polysulfone membrane, ultrafiltration 2～4h, thin up in pectin ultrafiltration and concentration liquid is selected centrifugal spraying then, inlet temperature is 160～175 ℃, carries out spraying drying when air outlet temperature is 85～95 ℃, makes pectin product.
The invention has the advantages that and adopt the water extraction, ultrafiltration and concentration and spraying drying are compared with existing climbing fig seed pectin extraction method, and energy consumption reduces by 2～3 times, makes pectin purity height, and every index meets or exceeds the national standard of up-to-date pectin.
Embodiment
Embodiment one
The climbing fig seed was picked the back cross 20 mesh sieves, and removed climbing fig petal and silt, 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed, with passivation enzyme wherein.Take by weighing the climbing fig seed 200g after the oven dry, drop in the reactor, the water that adds 30 times of weight mixes, heat temperature raising to 70 ℃, fully stir 52.5min, after plate-and-frame filter press filters, get filtrate, in the filtrate that obtains, add the water dilution of 1.0～1.5 times of weight, under 25 ℃, the selection feed pressure is 0.2Mpa, ultrafiltration 2.5h, thin up in pectin ultrafiltration and concentration liquid then, select centrifugal spraying, in inlet temperature is 165 ℃, air outlet temperature is to carry out spraying drying under 95 ℃, obtains the pectin powder 11.2g of beige, and the gamma value that records pectin is 37.55%, weight loss on drying is 5.56%, galacturonic acid content is 89.76%, and ash content is 4.80%, and the pH value is 3.4～3.5, hydrochloric acid insoluble substance is 0.64%, and sulfurous gas is less than 0.005%.
Embodiment two
The climbing fig seed was picked the back cross 20 mesh sieves, and removed climbing fig petal and silt, 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed, with passivation enzyme wherein.Take by weighing the climbing fig seed 300g after the oven dry, drop in the reactor, the water that adds 27 times of weight mixes, and heat temperature raising to 68 ℃ fully stirs 57min, after plate-and-frame filter press filters filtrate.The water dilution that in the filtrate that obtains, adds 1.0～1.5 times of weight, under 30 ℃, the selection feed pressure is 0.25Mpa, ultrafiltration 3h, thin up in pectin ultrafiltration and concentration liquid then, select centrifugal spraying, in inlet temperature is that 170 ℃, air outlet temperature are to carry out spraying drying under 90 ℃, makes faint yellow pectin powder 16.02g, and the gamma value that records pectin is 36.56%, weight loss on drying is 7.46%, galacturonic acid content is 87.64%, and ash content is 4.66%, and the pH value is 3.4～3.5, hydrochloric acid insoluble substance is 0.21%, and sulfurous gas is less than 0.005%.
Embodiment three
The climbing fig seed was picked the back cross 20 mesh sieves, and removed climbing fig petal and silt, 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed, with passivation enzyme wherein.Take by weighing the climbing fig seed 450g after the oven dry, drop in the reactor, the water that adds 33 times of weight mixes, and heat temperature raising to 62 ℃ fully stirs 57min, after plate-and-frame filter press filters filtrate.The water dilution that adds 1.0～1.5 times of weight in the filtrate that obtains, under 30 ℃, the selection feed pressure is 0.3Mpa, ultrafiltration 3.5h.Thin up in pectin ultrafiltration and concentration liquid then, select centrifugal spraying, in inlet temperature is that 165 ℃, air outlet temperature are to carry out spraying drying under 85 ℃, makes faint yellow pectin powder 26.07g, and the gamma value that records pectin is 37.16%, weight loss on drying is 7.73%, galacturonic acid content is 85.28%, and ash content is 4.63%, and the pH value is 3.4～3.5, hydrochloric acid insoluble substance is 0.45%, and sulfurous gas is less than 0.005%.
Embodiment four
The climbing fig seed was picked the back cross 20 mesh sieves, and removed climbing fig petal and silt, 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed, with passivation enzyme wherein.Take by weighing the climbing fig seed 550g after the oven dry, drop in the reactor, the water that adds 35 times of weight mixes, and heat temperature raising to 65 ℃ fully stirs 52.5min, after plate-and-frame filter press filters filtrate.The water dilution that in the filtrate that obtains, adds 1.0～1.5 times of weight, under 35 ℃, the selection feed pressure is 0.3Mpa, ultrafiltration 4h, thin up in pectin ultrafiltration and concentration liquid then, select centrifugal spraying, in inlet temperature is that 175 ℃, air outlet temperature are to carry out spraying drying under 80 ℃, obtains the pectin powder 31.40g of beige, and the gamma value that records pectin is 36.50%, weight loss on drying is 7.26%, galacturonic acid content is 84.56%, and ash content is 3.78%, and the pH value is 3.4～3.5, hydrochloric acid insoluble substance is 0.57%, and sulfurous gas is less than 0.005%.
Claims (3)
1, a kind of method that adopts aqueous extraction method to extract high grade low-ester pectin from the climbing fig seed is characterized in that comprising:
(a) the climbing fig seed was picked the back and was crossed 20 mesh sieves, removed climbing fig petal and silt, and 70～80 ℃ are dried by the fire that moisture content is about 6～8% to the climbing fig seed;
(b) (a) gained climbing fig seed is dropped in the reactor, the water that adds 25～35 times of weight mixes, and 45～60min is fully stirred in heat temperature raising to 60～70 ℃, after plate-and-frame filter press filters filtrate;
(c) filtrate ultrafiltration and concentration 2～4h that (b) obtained removes small-molecule substances such as salt, pigment, obtains fructose concentrating liquid;
(d) the concentrated solution thin up that (c) obtained, the spray-dried pectin product that makes.
2, according to right 1 described a kind of method that adopts aqueous extraction method from the climbing fig seed, to extract high grade low-ester pectin, the condition that it is characterized in that the described ultrafiltration and concentration of step (c) is: the water dilution that adds 1.0～1.5 times of weight, under 25～35 ℃ of the temperature, feed pressure is 0.1～0.3Mpa, and the ultra-filtration membrane of selecting for use is a polysulfone membrane.
3, according to right 1 described a kind of method that adopts aqueous extraction method from the climbing fig seed, to extract high grade low-ester pectin, it is characterized in that the described spraying drying condition of step (d) is: selecting centrifugal spraying, inlet temperature is that 160～175 ℃, air outlet temperature are 85～95 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100467441A CN101240038A (en) | 2008-01-21 | 2008-01-21 | Method for extracting high grade low-ester pectin from climbing fig seed by employing water extraction method |
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| CNA2008100467441A CN101240038A (en) | 2008-01-21 | 2008-01-21 | Method for extracting high grade low-ester pectin from climbing fig seed by employing water extraction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739741A (en) * | 2013-12-22 | 2014-04-23 | 山东农业大学 | Method for extracting pectin from fermented hawthorn wine pomace |
| CN105777936A (en) * | 2016-05-19 | 2016-07-20 | 江南大学 | Low-ester pectin and preparation method thereof |
| CN110498863A (en) * | 2018-05-17 | 2019-11-26 | 复旦大学 | Climbing fig leaf polyose and preparation method thereof and preparing the purposes in anticomplement medicament |
| CN111303312A (en) * | 2019-09-09 | 2020-06-19 | 侯士国 | Low-methoxy pectin of Ficus awkeotsang Makino and preparation method thereof |
-
2008
- 2008-01-21 CN CNA2008100467441A patent/CN101240038A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739741A (en) * | 2013-12-22 | 2014-04-23 | 山东农业大学 | Method for extracting pectin from fermented hawthorn wine pomace |
| CN103739741B (en) * | 2013-12-22 | 2015-11-04 | 山东农业大学 | A kind of method extracting pectin from fermentation haw thorn wine pomace |
| CN105777936A (en) * | 2016-05-19 | 2016-07-20 | 江南大学 | Low-ester pectin and preparation method thereof |
| CN105777936B (en) * | 2016-05-19 | 2018-06-22 | 江南大学 | A kind of low-ester pectin and preparation method thereof |
| CN110498863A (en) * | 2018-05-17 | 2019-11-26 | 复旦大学 | Climbing fig leaf polyose and preparation method thereof and preparing the purposes in anticomplement medicament |
| CN110498863B (en) * | 2018-05-17 | 2021-09-07 | 复旦大学 | Ficus pumila leaf polysaccharide, preparation method thereof and application thereof in preparation of anticomplement medicines |
| CN111303312A (en) * | 2019-09-09 | 2020-06-19 | 侯士国 | Low-methoxy pectin of Ficus awkeotsang Makino and preparation method thereof |
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