CN101798468A - Preparation method of hazelnut shell brown pigment - Google Patents
Preparation method of hazelnut shell brown pigment Download PDFInfo
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- CN101798468A CN101798468A CN201010102780A CN201010102780A CN101798468A CN 101798468 A CN101798468 A CN 101798468A CN 201010102780 A CN201010102780 A CN 201010102780A CN 201010102780 A CN201010102780 A CN 201010102780A CN 101798468 A CN101798468 A CN 101798468A
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Abstract
The invention discloses a preparation method of hazelnut shell brown pigment, which comprises the following steps that: two to six times of 0.5 to 3 percent sodium chloride water solution is added to be uniformly mixed after hazelnut shell is smashed, the temperature is adjusted to 30 to 50 DEG C, 1 to 4 percent sodium hydroxide solution with the volume being two to six times of that of the original solution after the temperature is maintained for 40 to 80 minutes, the temperature is adjusted to 50 to 70 DEG C and is continued to be maintained and continuously mixed so as to perform the extraction for 2 to 3 hours, then the extracted liquid is cooled, the pH value is adjusted, the extracted liquid is concentrated after being centrifuged, absolute ethyl alcohol is added into the extracted liquid to be centrifuged, the upper clean liquid is vacuum concentrated, is purified by macroporous resin, is concentrated, frozen and dried to obtain the brown powder-shaped hazelnut shell pigment. The source of the raw material adopted in the method is abundant, and the raw material is sourced from the waste of the agriculture and forestry. Through the technical conversion of the method, the economic added value of the waste such as the hazelnut shell can be effectively improved, thereby having important significance on promoting the development of the hazelnut production and processing industry.
Description
Technical field
The invention belongs to technical field of bioengineering, relate to biological technology of preparing or functional foodstuff process for processing technology, relate in particular to a kind of with hazelnut shell as the raw material production preparation method of hazelnut shell brown pigment.
Background technology
Food dye is the foodstuff additive that make food color or improve food color harmony color and luster.Although it is pigment content is very little in the food, very big to the influence of food quality quality.Along with the attention to food-safety problem, the human consumer more and more worries the safety issue of synthetic colour.
Natural pigment is microorganism, animals and plants matter and energy metabolic substd, to people and vegeto-animal growth, grow and play important physiological action, according to statistics, the plant that pigment is only contained in the world just has kind more than 2000, and plant becomes the human important source that obtains safe and reliable food dye.Thereby the research of natural pigment, development and application will become lasting focus.
China has vast territory, and has natural pigment to produce the required plant resources that enriches.But natural food colour research is started late, and still is in the natural food colour exploitation at present and uses the starting stage.Applying natural food colour has become the main direction of food dye development.To 1998, allow to produce and totally 69 kinds of the tinting materials that use through state approval, wherein natural pigment is 48 kinds, as: Asian puccoon is red, capsanthin, Monascus color, Sorghum pigment, radish red, Pericarpium Vitis viniferae is red, shellac is red, turmeric, Gardenia Yellow, sailor yellow, coreopsis yellow extract, gardenia blue, chlorophyll copper sodium, the cocoa shell palm fibre, carotene, caramel colour, black soya bean is red, maize, the certain herbaceous plants with big flowers that falls is red, black currant is red, the sea-buckthorn Huang, Roselle Calyx is red, the acorn cup palm fibre, mulberry fruit is red, natural leaf mustard is red, the Cherokee rose palm fibre, the indigo arnotto, algae indigo plant, the plant carbon black, close illiteracy is yellow, tea green, the citrus Huang, bixin, cochineal etc.
Along with people's's " back to nature " cry grows to even greater heights, and scientific research is to the progressively excavation of natural food colour physiologically active, particularly functional natural food colour, natural because of its source, safety and have physiological function concurrently, will be subjected to people's attention and favor further.In recent years, natural food colour in the international market the annual growth of sales volume remain on more than 10% always.The market of natural food colour is huge, and demand rises year by year, and various countries are Development and Production competitively.
Fibert is Betulaceae Corylus nut seeds, claims mountain Chinese chestnut, Jian Li, Chui etc. again.Mainly be distributed in the mountain area on the ground such as Gansu, Shaanxi and the Inner Mongol of three provinces in the northeast of China, North China, southwestern Hengduan mountain range and northwest.It really is similar to chestnut, and shell is hard, and the fertile Bai Eryuan of kernel has the address of " king of nut ", with almond, English walnut, cashew nut and be called " four big nuts "." Kaibao Bencao " meaning energy " beneficial strength, real stomach make us not hungry, hike ".Can be used for weakness of the spleen and the stomach, eat weak, loose stool diarrhoea etc. less.Single with or with compatibilities such as Chinese yam, the bighead atractylodes rhizome, chestnut.Life is chewed, prepared food all can.
Hazelnut shell is the main tankage after the fibert processing, because that it has is hard, be insoluble in characteristic such as water, deals with very difficultly, abandons as refuse, not only wastes resource, also brings problem of environmental pollution.Comprehensive utilization and deep processing for hazelnut shell at present still belongs to blank.
Summary of the invention
The invention provides a kind of is the method for feedstock production hazelnut shell brown pigment with the hazelnut shell.
A kind of preparation method of hazelnut shell brown pigment, comprise the steps: that the sodium chloride aqueous solution 2-6 that hazelnut shell is pulverized back adding 0.5-3% doubly stirs evenly, with temperature regulation to 30-50 ℃, keep after 40-80 minute, the sodium hydroxide solution that adds the 1-4% of 2-6 times of volume of original solution, adjust the temperature to 50-70 ℃, continue also continuous stirring of insulation and extracted 2-3 hour, with the extracting solution cooling, regulate pH to 6.0-8.0 then, centrifugal, behind the vacuum concentration, in extracting solution: ethanol=ratio added dehydrated alcohol in 1: 4, and is centrifugal, the supernatant liquor vacuum concentration, concentrated solution is crossed purification with macroreticular resin, and the pigment solution of collecting concentrates, lyophilize obtains brown ceramic powder shape pigment of hazelnut shell.
As preferably, hazelnut shell to be pulverized back adding sodium chloride aqueous solution 2-4 doubly stir evenly, attemperation is 35 ℃, keeps carrying out in 60 minutes the first step and handles.
The sodium chloride aqueous solution concentration that adds is 0.5-3%; Preferred 1%.
As preferably, add the sodium hydroxide solution of the 3-4% of 2-4 times of volume of original solution, adjust the temperature to 60 ℃, continue also continuous stirring of insulation and extracted 2-3 hour.
With the extracting solution cooling, regulate pH to 7.0.Concentrate, by concentrated solution: behind ethanol=1: the 4 ratio adding dehydrated alcohol, centrifugal.Centrifugal condition is 3000rpm, and the time is 20 minutes.
The advantage of the inventive method is:
1. the prepared pigment of hazelnut shell of the present invention is that the natural phant hazelnut shell makes through water extraction, and the sodium-chlor and the sodium hydroxide that use in the extraction are nontoxicity, the brown prime system safety that obtains, nontoxic natural food colour.
2. raw material sources of the present invention are abundant, are the agroforestry wastes, and process technical transform of the present invention can effectively improve the economic value added of this waste of hazelnut shell, promote the development of fibert production and processing industries that important meaning is arranged to continuing.
3. product of the present invention can be used at aspects such as protective foods, food, foodstuff additive, makeup, medicines as food dye, and craft science is reasonable, and is simple to operate, has stronger industrializing implementation.
Embodiment
Embodiment 1
Take by weighing the hazelnut shell 10kg after the pulverizing, add 0.5%NaCl solution 25kg, temperature is elevated to 30 ℃, keeps after 80 minutes, add 4% NaOH solution 50kg, with temperature raise be 50 ℃ continue insulation and constantly stirring extracted 3 hours.Then extracting solution is cooled to room temperature, adding hydrochloric acid soln adjustment pH is about 7.5, centrifugal 30min under J-6M type large capacity refrigerated centrifuge (BECKMAN company) the 3000rpm condition, supernatant concentration adds the 40kg dehydrated alcohol, recentrifuge to 10kg, obtain supernatant liquor 44.6kg, concentrate, concentrated solution is crossed macroporous adsorbent resin, the pigment solution of collecting, utilize vacuum decker to be concentrated to 3kg, lyophilize obtains brown pigment of hazelnut shell 0.56kg, purity 69.9%, yield are 5.6%.This pigment is a brown ceramic powder, and good water solubility has certain processing stability.
Embodiment 2
Take by weighing the hazelnut shell powder 25kg after the pulverizing, add 2%NaCl solution 75kg, temperature is elevated to 50 ℃, keeps after 40 minutes, add 2% NaOH solution 150kg, with temperature raise be 70 ℃ continue insulation and constantly stirring extracted 2 hours.Then extracting solution is cooled to room temperature, adding hydrochloric acid soln adjustment pH is about 7.0, centrifugal 30min under J-6M type large capacity refrigerated centrifuge (BECKMAN company) the 3000rpm condition, obtain supernatant liquor 231kg, utilize vacuum decker to be concentrated to 15kg, add the 45kg dehydrated alcohol, recentrifuge obtains supernatant liquor 48.3kg, concentrate, concentrated solution is crossed the macroporous adsorbent resin separation and purification, and the pigment solution of collecting utilizes vacuum decker to be concentrated to 3.8kg, lyophilize, obtain brown pigment of hazelnut shell 1.69kg, purity 70.8%, yield are 6.76%.This pigment is a brown ceramic powder, and good water solubility has certain processing stability.
Embodiment 3
Take by weighing the hazelnut shell powder 10kg after the pulverizing, add 1%NaCl solution 30kg, temperature is elevated to 35 ℃, keeps after 60 minutes, add 3% NaOH solution 60kg, with temperature raise be 60 ℃ continue insulation and constantly stirring extracted 2 hours.Then extracting solution is cooled to room temperature, adding hydrochloric acid soln adjustment pH is about 7.0, centrifugal 30min under J-6M type large capacity refrigerated centrifuge (BECKMAN company) the 3000rpm condition, obtain supernatant liquor 93.9kg, utilize vacuum decker to be concentrated to 10kg, add the 40kg dehydrated alcohol, recentrifuge obtains supernatant liquor 43.1kg, concentrate, concentrated solution is crossed the macroporous adsorbent resin separation and purification, and the pigment solution of collecting utilizes vacuum decker to be concentrated to 3kg, lyophilize, obtain brown pigment of hazelnut shell 0.72kg, purity 72.6%, yield are 7.2%.This pigment is a brown ceramic powder, and good water solubility has certain processing stability.
Claims (9)
1. preparation method of hazelnut shell brown pigment, comprise the steps: that hazelnut shell is pulverized back adding sodium chloride aqueous solution to be stirred evenly, with temperature regulation to 30-50 ℃, keep adding after 40-80 minute the sodium hydroxide solution of 1-4%, adjust the temperature to 50-70 ℃, continue also continuous stirring of insulation and extracted 2-3 hour, then extracting solution is cooled off, regulate pH to 6.0-8.0, centrifugal, behind the vacuum concentration, in extracting solution: ethanol=ratio added dehydrated alcohol in 1: 4, centrifugal, the supernatant liquor vacuum concentration, concentrated solution is crossed purification with macroreticular resin, the pigment solution of collecting, concentrate, lyophilize obtains brown ceramic powder shape pigment of hazelnut shell.
2. the method for claim 1 is characterized in that: described hazelnut shell is pulverized the back and is stirred evenly with sodium chloride aqueous solution, and sodium chloride aqueous solution concentration is 0.5-3%.
3. the method for claim 1, it is characterized in that: the ratio of sodium chloride aqueous solution and hazelnut shell is 2-6: 1.
4. the method for claim 1 is characterized in that: hazelnut shell is pulverized the back adds sodium chloride aqueous solution and stir evenly, with temperature regulation to 30-50 ℃.
5. the method for claim 1 is characterized in that: hazelnut shell is pulverized the back add sodium chloride aqueous solution and stir evenly, temperature regulation is after 30-50 ℃, and the hold-time is 40-80 minute.
6. the method for claim 1, it is characterized in that: the concentration of sodium hydroxide solution of adding is 1-4%.
7. the method for claim 1 is characterized in that: the sodium hydroxide solution volume of adding be original solution 2-6 doubly.
8. the method for claim 1 is characterized in that: after adding the 1-4% sodium hydroxide solution, temperature regulation is 50-70 ℃.
9. the method for claim 1 is characterized in that: add the 1-4% sodium hydroxide solution, temperature regulation is after 50-70 ℃, and extraction time is 2-3 hour.
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| CN 201010102780 CN101798468B (en) | 2010-01-29 | 2010-01-29 | Preparation method of hazelnut shell brown pigment |
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| CN 201010102780 CN101798468B (en) | 2010-01-29 | 2010-01-29 | Preparation method of hazelnut shell brown pigment |
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| CN101798468A true CN101798468A (en) | 2010-08-11 |
| CN101798468B CN101798468B (en) | 2012-12-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660290A (en) * | 2012-04-27 | 2012-09-12 | 东北林业大学 | Acorn shell pigment with antioxidant activity and preparation method and application thereof |
| CN103865292A (en) * | 2014-03-28 | 2014-06-18 | 苏州大学 | Natural red ximei (Chinese character) dye, preparation method, and ecological dyeing thereof applied to azelon |
| CN104250456A (en) * | 2014-05-20 | 2014-12-31 | 东北林业大学 | Method for purifying hazelnut shell brown pigment |
| CN105602281A (en) * | 2015-12-18 | 2016-05-25 | 安徽宜民服饰有限公司 | Plant dye |
| CN106947285A (en) * | 2017-05-05 | 2017-07-14 | 西南大学 | A kind of extraction of Job's tears kind shell melanin and isolation and purification method |
| CN107964809A (en) * | 2017-11-09 | 2018-04-27 | 安徽美德发艺有限责任公司 | A kind of environmentally friendly coloring agent for U-shaped nail sending and receiving |
-
2010
- 2010-01-29 CN CN 201010102780 patent/CN101798468B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660290A (en) * | 2012-04-27 | 2012-09-12 | 东北林业大学 | Acorn shell pigment with antioxidant activity and preparation method and application thereof |
| CN102660290B (en) * | 2012-04-27 | 2014-03-12 | 东北林业大学 | Acorn shell pigment with antioxidant activity and preparation method and application thereof |
| CN103865292A (en) * | 2014-03-28 | 2014-06-18 | 苏州大学 | Natural red ximei (Chinese character) dye, preparation method, and ecological dyeing thereof applied to azelon |
| CN103865292B (en) * | 2014-03-28 | 2015-10-28 | 苏州大学 | A kind of ecological dyeing liked plum natural dyestuff, preparation method and be applied to thiozell |
| CN104250456A (en) * | 2014-05-20 | 2014-12-31 | 东北林业大学 | Method for purifying hazelnut shell brown pigment |
| CN104250456B (en) * | 2014-05-20 | 2016-03-30 | 东北林业大学 | A kind of purification process of hazelnut shell brown pigment |
| CN105602281A (en) * | 2015-12-18 | 2016-05-25 | 安徽宜民服饰有限公司 | Plant dye |
| CN106947285A (en) * | 2017-05-05 | 2017-07-14 | 西南大学 | A kind of extraction of Job's tears kind shell melanin and isolation and purification method |
| CN106947285B (en) * | 2017-05-05 | 2019-03-22 | 西南大学 | A kind of extraction of coix lacryma-jobi kind shell melanin and isolation and purification method |
| CN107964809A (en) * | 2017-11-09 | 2018-04-27 | 安徽美德发艺有限责任公司 | A kind of environmentally friendly coloring agent for U-shaped nail sending and receiving |
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| Publication number | Publication date |
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| CN101798468B (en) | 2012-12-26 |
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