CN1973681B - Technological process of producing oat diet fiber and nutritious powder with oat bran - Google Patents
Technological process of producing oat diet fiber and nutritious powder with oat bran Download PDFInfo
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- CN1973681B CN1973681B CN2006101022643A CN200610102264A CN1973681B CN 1973681 B CN1973681 B CN 1973681B CN 2006101022643 A CN2006101022643 A CN 2006101022643A CN 200610102264 A CN200610102264 A CN 200610102264A CN 1973681 B CN1973681 B CN 1973681B
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Abstract
The present invention relates to oat deeply processing technology, and is especially technological process of producing oat dietary fiber and nutritious powder with oat bran. The technological process includes microwave enzyme deactivation of oat bran, enzymolysis, centrifugal separation, drying the precipitate and superfine crushing to obtain oat dietary fiber powder, vacuum concentrating the separated supernatant and spray drying to obtain nutritious powder. The present invention extracts the nutritious matters from oat bran effectively, the product has high purity and the production process is environment friendly.
Description
Technical field
The present invention relates to a kind of oat deep process technology, be specially the technology that a kind of oat bran is produced Herba bromi japonici dietary fiber, nutrient powder.
Background technology
Oat is compared with other cereal, has comprehensive and higher nutritive value.All occupy the first at five big nutritive indexs such as protein, fat, vitamin, mineral element, celluloses, studies show that now and contain a large amount of dietary fibers in the oat, Herba bromi japonici dietary fiber comprises water-soluble and two kinds of dietary fibers of water-insoluble, health is had very important physical function: (1) weight losing function; (2) immunity of raising human body; (3) to the prophylactic treatment effect of diabetes; (4) promote the colon function, the prevention colon cancer; (5) to the prevention and the therapeutic action of angiocardiopathy, extensive in food industry applications.Rich in protein in the oat grain because of the kind difference can reach 13%～20%, occupy the first in cereal, the composition of protein is different from other corn gluten proteins in the oat, and alcohol soluble protein only accounts for 10%～15% of total protein.Albumen in the oat is that balance is best in the cereal, and the necessary amino acid in the oat is formed than balance, variously must amino acid content all be higher than or be higher than wheat flour more than 1 times near provisional pattern of amino acids value, especially lysine content that FAO/WHO issues.Fat content is between 3%～9% in the oat, and mean value is 6.3%, is 4 times of wheat, is the highest kind of content in the cereal.Oat fat belongs to quality plant fat, and unsaturated fatty acid content wherein is higher, and mainly is linoleic acid, accounts for 38～52% of whole aliphatic acid, has tangible effect for reducing blood fat.On the other hand, contain multiple anti-oxidant composition in the oat, as the polyphenols cinnamic acid derivative, to the fragrant acid of beans, P-hydroxybenzoic acid, septichen, vanillic aldehyde, catechol etc.; Compositions such as the vitamin E that has in the oat lipid, black pure and mild hydroxy fatty acid also have antioxidant effect in various degree.In addition, vitamin B complex, niacin, folic acid, biotin and pantothenic acid are all abundanter in the naked oats, also contain the saponin that lacks in other cereal in the oat, and this also is one of composition of health care.
The main method of domestic production dietary fiber is an enzyme alkali combined techniques at present.Its basic principle is to use AMS to come starch-splitting class material, and with protein and the fat in the alkali decomposition raw material, centrifugation again obtains food fibre powder with sediment oven dry, pulverizing.The dietary fiber purity of utilizing this method to make is lower, and generally 45～60%, color and luster is relatively poor, and swellbility and retention ability are lower, and productivity ratio is lower, generally 30～45%.In addition, the supernatant after the centrifugation is abandoned as waste liquid.
Summary of the invention
The present invention for solve the oat that exists in the prior art effectively comprehensive development and utilization problem and provide a kind of oat bran to produce the technology of Herba bromi japonici dietary fiber, nutrient powder.
The present invention is realized that by following technical scheme a kind of oat bran is produced the technology of Herba bromi japonici dietary fiber, nutrient powder, comprises the following steps:
1, oat stone roller skin obtains oat bran, and the oat grinding rate is controlled in 13～18% scopes, and preferred 15%～16%.
2, oat bran is adopted microwave deactivating enzyme;
3, go out oat bran enzymolysis behind the enzyme, the part by weight that adds entry is 1: 6～10, adding AMS and the total amount of carbohydrase is 1～3%, temperature is controlled at 50～60 ℃, and the time was controlled at 30～50 minutes, regulates pH value to 6.0～6.5, wherein AMS and carbohydrase mass ratio are 1: 1～1: 3, and then the adding Protease Treatment, the addition of protease is 2.0～4.0% of a raw material oat bran amount
4, with the product centrifugation behind the enzymolysis,
5, to obtaining the fiber powder after isolated drying precipitate, the ultramicro grinding,
6, the supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.
On the basis of such scheme, preferred version of the present invention is that a kind of oat bran is produced the technology of Herba bromi japonici dietary fiber, nutrient powder, comprises the following steps:
1, oat stone roller skin obtains oat bran, and the oat grinding rate is controlled in 15～16% scopes.
2, oat bran is adopted microwave deactivating enzyme; The power of microwave equipment is 60KW,
3, go out oat bran enzymolysis behind the enzyme, the part by weight that adds entry is 1: 7, adding AMS and the total amount of carbohydrase is 2%, temperature is controlled at 55 ℃, and the time was controlled at 35 minutes, regulates pH value to 6.0, wherein AMS and carbohydrase mass ratio are 1: 2, and then the adding Protease Treatment, the addition of protease is 3.5% of a raw material oat bran amount
4, with the product centrifugation behind the enzymolysis,
5, to obtaining the fiber powder after isolated drying precipitate, the ultramicro grinding,
Beneficial effect of the present invention is as follows,
(1) joint production process among the present invention can make the productive rate of dietary fiber reach 40～55%, and purity reaches 50～65%, and color and luster is better, and swellbility and retention ability are better; The productive rate of nutrient powder can reach 25～40%, and its color and luster and dissolubility are all better, and wherein beta glucan content is between 4.5～6.5%, and protein content is 10～15%.
(2) technology of the present invention when obtaining the Herba bromi japonici dietary fiber powder, obtains having the cereals nutrient powder of multiple nutrients value and health care by the innovation to critical processes such as oat bran efficiently concentrating, microwave deactivating enzyme, multienzyme liquefaction.That is a technology obtains two kinds of products, accomplishes the maximum utilization of oat bran and the significantly raising of added value of product.
(3) technology of the present invention has reduced the fragmentation of oat cortex by whole grain oat is ground skin, with traditional oat flouring technology comparison, has improved the yield and the purity of oat bran, makes Herba bromi japonici dietary fiber obtain efficiently concentrating.
(4) in the technology of the present invention microwave technology is applied to the oat bran enzyme that goes out, the activity of inactive enzyme prevents becoming sour of oat bran, prolongs the shelf-life of oat bran.Go out enzyme relatively with traditional oat steam, and microwave deactivating enzyme has that speed is fast, efficient is high, energy consumption is low, be easy to advantage such as control.
(5) carry out multi-enzymatic hydrolysis and prepare high-purity Herba bromi japonici dietary fiber powder by employing AMS, carbohydrase, protease in the technology of the present invention.The enzyme alkali combined techniques that Herba bromi japonici dietary fiber productive rate that makes and purity are more traditional all is improved largely.And, in enterprise production process, reduced the processing cost of the consumption and the sewage of water significantly.
Description of drawings
Fig. 1 is a process chart of the present invention
The specific embodiment
Embodiment 1
1) oat stone roller skin obtains oat bran, and the oat grinding rate is controlled at 13%.Adopt abrasive type rice whitening machine to grind oat bran down among the present invention.
2) oat bran is adopted microwave deactivating enzyme; Oat bran among the present invention adopts microwave deactivating enzyme, and the activity of inactive enzyme to prevent becoming sour of oat bran, prolongs the shelf-life of oat bran, and the power of microwave equipment is 60KW, and rotating speed is 2.0～2.5m/min, and thickness of feed layer is 10～20mm.The oat bran that goes out behind the enzyme sieve (sieve diameter is 1.2mm).
3) go out oat bran enzymolysis behind the enzyme, the material-water ratio that adds entry mixes by 1: 6 part by weight, regulate pH value to 6.0 with hydrochloric acid and NaOH, adding AMS and carbohydrase handles, total addition level is 1.5% of a raw material oat bran amount, and AMS: carbohydrase is 1: 1, and the unit of activity of two kinds of enzymes of adding is 3000～5000U/g.
And then the adding Protease Treatment, the addition of protease is 2.0% of a raw material oat bran amount, the unit of activity of protease is 2.4AU/g.
4) with the product centrifugation behind the enzymolysis.Use horizontal spiral discharge sedimentation centrifuge, power is 18.5KW, and the rotary drum rotating speed is 3500r/min.Handle respectively sediment and supernatant centrifugal back.
5) to obtaining the fiber powder after isolated drying precipitate, the ultramicro grinding, sediment among the present invention carries out obtaining food fibre powder after fluidized drying, the ultramicro grinding, during fluidized drying, use HighefficientFluidbeddrier, power is 18.5KW, displacement volume is 620L, and material reaches 150～200 orders after the ultramicro grinding.
6) supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.Supernatant among the present invention carries out that vacuum concentrates, obtain nutrient powder after the spray-drying.When vacuum concentrates, use vacuum concentration pan, operating pressure is 0.09MPa, and vacuum is 0.09MMHg, and evaporation capacity is 1000t/h; During spray-drying, use Highspeedcentrifugingandsprayingdrier, power is 95KW.
Embodiment 2,
1) oat stone roller skin obtains oat bran, and the oat grinding rate is controlled in 18% scope.Adopt abrasive type rice whitening machine to grind oat bran down among the present invention.
2) oat bran is adopted microwave deactivating enzyme; Oat bran among the present invention adopts microwave deactivating enzyme, and the activity of inactive enzyme to prevent becoming sour of oat bran, prolongs the shelf-life of oat bran, and the power of microwave equipment is 60KW, and rotating speed is 2.0～2.5m/min, and thickness of feed layer is 10～20mm.The oat bran that goes out behind the enzyme sieve (sieve diameter is 1.2mm).
3) go out oat bran enzymolysis behind the enzyme, the material-water ratio that adds entry mixes by 1: 8 part by weight, regulate pH value to 6.5 with hydrochloric acid and NaOH, adding AMS and carbohydrase handles, total addition level is 2.5% of a raw material oat bran amount, and AMS: carbohydrase is 1: 3, and the unit of activity of two kinds of enzymes of adding is 3000～5000U/g.
And then the adding Protease Treatment, the addition of protease is 4.0% of a raw material oat bran amount, the unit of activity of protease is 2.4AU/g.
4) with the product centrifugation behind the enzymolysis.Use horizontal spiral discharge sedimentation centrifuge, power is 18.5KW, and the rotary drum rotating speed is 3800r/min.Handle respectively sediment and supernatant centrifugal back.
5) to obtaining the fiber powder after isolated drying precipitate, the ultramicro grinding, sediment among the present invention carries out obtaining food fibre powder after fluidized drying, the ultramicro grinding, during fluidized drying, use HighefficientFluidbeddrier, power is 18.5KW, displacement volume is 620L, and material reaches 150～200 orders after the ultramicro grinding.
6) supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.Supernatant among the present invention carries out that vacuum concentrates, obtain nutrient powder after the spray-drying.When vacuum concentrates, use vacuum concentration pan, operating pressure is 0.09MPa, and vacuum is 0.09MMHg, and evaporation capacity is 1000t/h; During spray-drying, use Highspeedcentrifugingandsprayingdrier, power is 95KW.
Embodiment 3,
1) oat stone roller skin obtains oat bran, and the oat grinding rate is controlled in 15～16% scopes.Adopt abrasive type rice whitening machine to grind oat bran down among the present invention.
2) oat bran is adopted microwave deactivating enzyme; Oat bran among the present invention adopts microwave deactivating enzyme, and the activity of inactive enzyme to prevent becoming sour of oat bran, prolongs the shelf-life of oat bran, and the power of microwave equipment is 60KW, and rotating speed is 2.0～2.5m/min, and thickness of feed layer is 10～20mm.The oat bran that goes out behind the enzyme sieve (sieve diameter is 1.2mm).
3) go out oat bran enzymolysis behind the enzyme, the material-water ratio that adds entry mixes by 1: 7 part by weight, regulate pH value to 6.3 with hydrochloric acid and NaOH, adding AMS and carbohydrase handles, total addition level is 2% of a raw material oat bran amount, and AMS: carbohydrase is 1: 2, and the unit of activity of two kinds of enzymes of adding is 3000～5000U/g.
And then the adding Protease Treatment, the addition of protease is 3% of a raw material oat bran amount, the unit of activity of protease is 2.4AU/g.
4) with the product centrifugation behind the enzymolysis.Use horizontal spiral discharge sedimentation centrifuge, power is 18.5KW, and the rotary drum rotating speed is 3650r/min.Handle respectively sediment and supernatant centrifugal back.
5) to obtaining the fiber powder after isolated drying precipitate, the ultramicro grinding, sediment among the present invention carries out obtaining food fibre powder after fluidized drying, the ultramicro grinding, during fluidized drying, use HighefficientFluidbeddrier, power is 18.5KW, displacement volume is 620L, and material reaches 150～200 orders after the ultramicro grinding.
6) supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.Supernatant among the present invention carries out that vacuum concentrates, obtain nutrient powder after the spray-drying.When vacuum concentrates, use vacuum concentration pan, operating pressure is 0.09MPa, and vacuum is 0.09MMHg, and evaporation capacity is 1000t/h; During spray-drying, use Highspeedcentrifugingandsprayingdrier, power is 95KW.
Claims (2)
1. an oat bran is produced the method for Herba bromi japonici dietary fiber, nutrient powder, it is characterized in that, comprises the following steps:
(1), oat grinds skin and obtains oat bran, the oat grinding rate is controlled in 13～18% scopes,
(2), oat bran is adopted microwave deactivating enzyme; The power of microwave equipment is 60KW, and rotating speed is 2.0～2.5m/min, and thickness of feed layer is 10～20mm,
(3), go out oat bran enzymolysis behind the enzyme, the material water weight ratio example that adds entry is 1: 6～10, adding AMS and the total amount of carbohydrase is 1～3% of raw material oat bran amount, temperature is controlled at 50～60 ℃, and the time was controlled at 30～50 minutes, regulates pH value to 6.0～6.5, wherein AMS and carbohydrase mass ratio are 1: 1～1: 3, and then the adding Protease Treatment, the addition of protease is 2.0～4.0% of a raw material oat bran amount
(4), with the product centrifugation behind the enzymolysis,
(5), to obtaining Herba bromi japonici dietary fiber after isolated drying precipitate, the ultramicro grinding,
(6), the supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.
2. oat bran according to claim 1 is produced the method for Herba bromi japonici dietary fiber, nutrient powder, it is characterized in that, comprises the following steps:
(1), oat grinds skin and obtains oat bran, the oat grinding rate is controlled in 15～16% scopes,
(2), oat bran is adopted microwave deactivating enzyme; The power of microwave equipment is 60KW, and rotating speed is 2.0～2.5m/min, and thickness of feed layer is 10～20mm,
(3), go out oat bran enzymolysis behind the enzyme, the material water weight ratio example that adds entry is 1: 7, adding AMS and the total amount of carbohydrase is 2% of raw material oat bran amount, temperature is controlled at 55 ℃, and the time was controlled at 35 minutes, regulates pH value to 6.0, wherein AMS and carbohydrase mass ratio are 1: 2, and then the adding Protease Treatment, the addition of protease is 3.5% of a raw material oat bran amount
(4), with the product centrifugation behind the enzymolysis,
(5), to obtaining Herba bromi japonici dietary fiber after isolated drying precipitate, the ultramicro grinding,
(6), the supernatant after separating through vacuum concentrate, after the spray-drying nutrient powder.
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