CN104705662A - Method for extracting composite flax dietary fiber - Google Patents
Method for extracting composite flax dietary fiber Download PDFInfo
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- CN104705662A CN104705662A CN201510148211.4A CN201510148211A CN104705662A CN 104705662 A CN104705662 A CN 104705662A CN 201510148211 A CN201510148211 A CN 201510148211A CN 104705662 A CN104705662 A CN 104705662A
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Abstract
The invention discloses a method for extracting a composite flax dietary fiber. The method comprises the following steps: peeling off flaxseeds, and degreasing the peel; crushing, separating, and respectively extracting a water-soluble fiber and a water-insoluble fiber; and removing cyanogenetic glycoside, and preparing powder by spraying. By virtue of the distribution condition and the physicochemical property of the flax dietary fiber in the flaxseeds, and integration of mechanical, physical and chemical means, the extracted flax dietary fiber reaches 85% and above; the extraction technology is low in production cost, free of environmental pollution, and simple in process route; the cyanogenetic glycoside residue in the extracted product accords with the relevant national standards in China; and the composite dietary fiber is prepared while the comprehensive utilization of the flaxseeds is finished.
Description
Technical field
The present invention relates to functional food field, being specifically related to linseed is that raw material extracts flax water-soluble dietary fiber and water insoluble dietary fiber, then sloughs the production method of composite dietary of cyanogenic glycoside.
Background technology
Dietary fiber refers to not easily digested, the macromolecular substances based on polysaccharide.Its chemical composition comprises cellulose, hemicellulose, pectin and pectic substance, glycoprotein and lignin.Dietary fiber has stronger effect of holding oil, solubilising, imbibition power, retention ability, combination and exchange cation ability, absorption cheating organic compound effect and inducing microbial, its energy prevention and therapy various diseases, is called as " the 7th nutrient " after starch, protein, fat, vitamin, mineral matter and water.Dietary fiber divides the water-soluble and large class of water-insoluble two, and their function is different.Water-soluble fibre can shorten the time of fat by enteron aisle, suppresses or delay the absorption of cholesterol and triglycerides, reduces cholesterol, reduces diabetic's level of postprandial blood sugar.Water-insoluble fiber then has the effect preventing and treating colon cancer and constipation, the effect of prevention of obesity.
Linseed containing have an appointment about 9% water-soluble fibre, the water-insoluble fiber of about 19%, its content is far above general agricultural product, and linseed is one of agricultural product that plant kingdom's dietary fiber content is higher, and linseed prepares one of best agricultural product of dietary fiber.For the function of intensification diet fiber, water-soluble fibre and water-insoluble fiber are merged and is extracted as Compound dietary fiber, the function of comprehensive two kinds of fibers can be integrated on the one hand, can purifying technique be simplified on the other hand, reduce production cost.
The report extracting dietary fiber method is in the prior art more, general technology is: remove starch, regulate Ph, enzymolysis, extraction dietary fiber, the shortcoming of this method is to extract remaining enzyme in a large number in fiber, extract product purity on the one hand lower, the water pollution problems processing cost on the other hand after enzymolysis is higher.Chinese patent 200410000674.8 discloses " production method of flax seed edible fiber ", this technology with flax dregs of rice for raw material, by the method for pure mechanical crushing screening by the protein of flax dregs of rice and separation of polysaccharides out, be ground into more than 40 orders and be finished product.The defect that this patent exists is that fiber in flax dregs of rice and the compound such as protein and polysaccharide rely on mechanical means separating effect undesirable, therefore, the purity of flax dietary fiber of preparation is not high yet, and more fatal defect is not remove the toxicant cyanogenic glycoside prepared in product.
Summary of the invention
The object of the invention is for existing flax dietary fiber extractive technique Problems existing, a kind of extracting method of compound flax dietary fiber is provided, this technology utilizes flax dietary fiber distribution situation and physicochemical property in linseed, combine machinery, physics and chemistry means, optimize extraction process, prepare compound flax dietary fiber of high-purity, detoxification, disclose a kind of production cost low, there is no environmental pollution, the simple extraction process of process route.
The extracting method of compound flax dietary fiber of the present invention comprises the steps:
(1) Flaxseed peeling by linseed through decortication process in skin kernel-containing rate lower than 2% linseed skin;
(2) degreasing of linseed skin by linseed skin screw oil expeller squeezing degreasing after leach degreasing again, obtain fat content lower than 1% the linseed skin dregs of rice;
(3) pulverize the pulverizing of the linseed skin dregs of rice by 100 orders;
(4) be separated and be dissolved in 15-30 water doubly by linseed skin powder, after fully stirring, centrifugation is solid phase and liquid phase, and solid phase is water-insoluble fiber;
(5) about the liquid phase hydrochloric acid that (4) prepare by extraction water-soluble fibre regulates pH value to 4.3, flax protein in liquid phase is precipitated, then removing flax protein is separated, regulate except the pH value of solution after deproteinized is to 7-7.5 with NaOH again, regulate solution that water-soluble fibre is precipitated with ethanol again, after centrifugation, solid phase is water-soluble fibre;
(6) merge (4) to be separated the solid phase obtained with (5) and to be dissolved in the water of 10-15 times, after at 90-95 DEG C, Keep agitation heats and sloughs cyanogenic glycoside in 30-60 minute, spraying dry obtains product.
Adopt the present invention to prepare the extracting method of compound flax dietary fiber, first three steps is mechanical processing technique; 4th step is physical separation technique; Do feed byproduct after being adjustable to neutrality after the flax protein separation of the 5th step precipitation, complete the recyclable recycling of ethanolic solution of sedimentation water-soluble dietary fiber, do not have sewage to produce, there is no environmental pollution; 6th step, by composite dietary is added chemical reaction in hot water, by the cyanogenic glycoside hydrolysis in flax dietary fiber, obtains the compound flax dietary fiber solution after detoxification, produces powdery compound flax dietary fiber through centrifugal spray drying.
The inventive method compared with prior art, its substantive distinguishing features and significant progressive to show: (1) utilizes flax dietary fiber to be distributed in feature in linseed skin in linseed, first by Flaxseed peeling means, by flax dietary fiber in linseed skin comparatively linseed be enriched more than 2.2 times; (2) through squeezing and extract technology by linseed skin grease remove, make flax dietary fiber in the waste of flax dregs of rice comparatively linseed skin be enriched more than 1.25 times; (3) utilize the physicochemical property of flax protein, be separated again by methods such as pulverizing, centrifugation and isoelectric precipitations the protein eliminating more than 10%, make flax dietary fiber be enriched more than 1.1 times further; (4) test proves that cyanogenic glycoside is applied in extraction process after decomposing fast and thorough characteristic in the hot water, the cyanogenic glycoside residual in product is made to meet relevant national standard (GB 16322-2003 vegetable protein beverage sanitary standard, cyanide (in HCN≤0.05mg/L).Beneficial effect of the present invention is that (1) the present invention utilizes flax dietary fiber distribution situation and physicochemical property in linseed, combines machinery, physics and chemistry means, and flax dietary fiber purity of extraction is high, reaches more than 85%; (2) extraction process production cost low, do not have environmental pollution, process route simple; (3) the cyanogenic glycoside residual in product meets relevant national standard; (4) while preparing composite dietary, the comprehensive utilization of linseed is completed.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
The extracting method of compound flax dietary fiber of the present invention comprises the steps:
(1) by the linseed cleaned after decortication process, obtain kernel-containing rate in skin lower than 2% linseed skin;
(2) by linseed skin first with screw oil expeller squeezing degreasing after use the degreasing of extraction method again, obtain fat content lower than 1% the linseed skin dregs of rice;
(3) the linseed skin dregs of rice are pulverized as Powdered, at least by 100 mesh standard sieves;
(4) be dissolved in 15-30 times of water of skin opaque amount by linseed skin powder, after fully stirring, centrifugation is solid phase and liquid phase, and solid phase is water-insoluble fiber, containing water-soluble fibre in liquid phase;
(5) about the liquid phase hydrochloric acid (4) prepared regulates pH value to 4.3, flax protein in liquid phase is precipitated, then removing is separated, regulate except the pH value of solution after deproteinized is to 7-7.5 with NaOH again, regulate solution that water-soluble fibre is precipitated with ethanol again, after centrifugation, solid phase is water-soluble fibre, reclaims the ethanol recycling in liquid phase;
(6) merge (4) to be separated the solid phase obtained with (5) and to be dissolved in the water of 10-15 times, after at 90-95 DEG C, Keep agitation heating sloughs cyanogenic glycoside in 30-60 minute, spraying dry obtains powdery compound flax dietary fiber that dietary fiber content is 86.1%.
Claims (1)
1. the extracting method of compound flax dietary fiber comprises the steps:
(1) Flaxseed peeling by linseed through decortication process in skin kernel-containing rate lower than 2% linseed skin;
(2) degreasing of linseed skin by linseed skin screw oil expeller squeezing degreasing after leach degreasing again, obtain fat content lower than 1% the linseed skin dregs of rice;
(3) pulverize the pulverizing of the linseed skin dregs of rice by 100 orders;
(4) be separated and be dissolved in 15-30 water doubly by linseed skin powder, after fully stirring, centrifugation is solid phase and liquid phase, and solid phase is water-insoluble fiber;
(5) about the liquid phase hydrochloric acid that (4) prepare by extraction water-soluble fibre regulates pH value to 4.3, flax protein in liquid phase is precipitated, then removing flax protein is separated, regulate except the pH value of solution after deproteinized is to 7-7.5 with NaOH again, regulate solution that water-soluble fibre is precipitated with ethanol again, after centrifugation, solid phase is water-soluble fibre;
(6) merge (4) to be separated the solid phase obtained with (5) and to be dissolved in the water of 10-15 times, after at 90-95 DEG C, Keep agitation heats and sloughs cyanogenic glycoside in 30-60 minute, spraying dry obtains product.
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| CN201510148211.4A CN104705662A (en) | 2015-04-01 | 2015-04-01 | Method for extracting composite flax dietary fiber |
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| CN201510148211.4A CN104705662A (en) | 2015-04-01 | 2015-04-01 | Method for extracting composite flax dietary fiber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950283A (en) * | 2016-03-30 | 2016-09-21 | 上海海洋大学 | Manufacturing method of chia-seed-based pressed oil and processing method of pressed cake meal |
| CN115413792A (en) * | 2022-09-14 | 2022-12-02 | 大连工业大学 | Soluble dietary fiber of flaxseed meal, extraction method and application in food |
Citations (4)
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| CN1557199A (en) * | 2004-01-16 | 2004-12-29 | 班振怀 | Flax seed edible fiber producing method |
| WO2006078148A1 (en) * | 2005-01-19 | 2006-07-27 | Ilham Ibrahimi | Whole-wheat, natural, dietetic cereal preparation with therapeutic properties |
| CN102677189A (en) * | 2012-05-11 | 2012-09-19 | 铜陵市霞飞新材料有限责任公司 | Method for extracting linen fiber from linen waste by biological enzyme |
| CN103013672A (en) * | 2012-12-13 | 2013-04-03 | 山西省农业科学院农产品加工研究所 | Process for comprehensively utilizing flax seed skin |
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2015
- 2015-04-01 CN CN201510148211.4A patent/CN104705662A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557199A (en) * | 2004-01-16 | 2004-12-29 | 班振怀 | Flax seed edible fiber producing method |
| WO2006078148A1 (en) * | 2005-01-19 | 2006-07-27 | Ilham Ibrahimi | Whole-wheat, natural, dietetic cereal preparation with therapeutic properties |
| CN102677189A (en) * | 2012-05-11 | 2012-09-19 | 铜陵市霞飞新材料有限责任公司 | Method for extracting linen fiber from linen waste by biological enzyme |
| CN103013672A (en) * | 2012-12-13 | 2013-04-03 | 山西省农业科学院农产品加工研究所 | Process for comprehensively utilizing flax seed skin |
Non-Patent Citations (1)
| Title |
|---|
| 杨宏志: "亚麻籽中木脂素提取工艺的研究", 《农产品加工(学刊)》, no. 04, 25 February 2007 (2007-02-25), pages 151 - 154 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950283A (en) * | 2016-03-30 | 2016-09-21 | 上海海洋大学 | Manufacturing method of chia-seed-based pressed oil and processing method of pressed cake meal |
| CN115413792A (en) * | 2022-09-14 | 2022-12-02 | 大连工业大学 | Soluble dietary fiber of flaxseed meal, extraction method and application in food |
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