CN103300293B - Processing method of wheat seedings as well as instant wheat seeding powder and wheat seeding fiber powder prepared from same - Google Patents
Processing method of wheat seedings as well as instant wheat seeding powder and wheat seeding fiber powder prepared from same Download PDFInfo
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Abstract
The invention discloses a processing method of wheat seedings as well as instant wheat seeding powder and wheat seeding fiber powder prepared from the same, and aims to solve the problem that the wheat seedings can be protruded during the processing by adopting the existing wheat seeding juice powder preparation process, for example, in part of methods, hot air being 145-165 DEG C is used for drying, the processing time is slightly long, and the product quality is seriously influenced. The wheat seedings are processed by adopting a wall-adhering-resisting spray control drying method, the blanching temperature can achieve 95 DEG C-98 DEG C, and enzyme and functionality components in the seedlings are greatly destroyed. The processing method comprises the following steps of: preprocessing, color protecting, pulping, filtering, homogenizing and spray drying. The processing method provided by the invention is capable of effectively reducing the blanching temperature, the functionality components are reserved to be maximum extent, meanwhile, wheat seeding juice is directly sprayed, a relatively good spraying effect is obtained through controlling spraying process parameters, the process is simple, the operating method is simple, the spraying time is short, and a product is not easy to block.
Description
The present invention relates to food processing field, the instant wheat seedling powder of especially a kind of processing method of wheat seeding and preparation thereof and wheat seeding fiber powder.
Background technology
Wheat seeding (Wheat seedling) named again agropyron, is grass family, the young stem and leaf of Triticum (Tritium) plant wheat.China is Wheat Production big country, and take winter wheat as main, and wheat annual production is over more than 100,000,000 ton.Winter wheat was entering before the winter and during the early spring, tillering of occurring mostly is ineffective tillering, and therefore, available wheat seeding resource is very abundant.Wheat seeding resource is fully utilized, and the converted products of exploitation suitability for industrialized production, seems particularly important and urgent, need to cause food worker's concern.
Modern medicine study is found, in wheat seeding, contain chlorophyll, natural complex, 25% different organized enzyme and the several mineral materials of protein, 20 several amino acids, hundreds of kind, functional components is very abundant, there is fat-reducing, lipopenicillinase, unique nutrition and health care effect such as anti-oxidant, exploitation Huge value.Qiao Wenjing (2009) studies show that, the protein content of wheat seedling is far above the protein content in common fruits and vegetables, even with beef in protein content suitable, be 2.6 times of rice; In wheat seedling, the content of dietary fiber is also very high, is 5.0 times of mushroom; In wheat seedling, the content of vitamin is also quite abundant, wherein V
acontent be 6.5 times of egg, be 3.0 times of spinach, V
calso than abundant in common vegetables.Meanwhile, V in wheat seedling
econtent especially high, be 5.8 times of egg.Its content of mineral substances containing is also very abundant, potassium content is spinach 7.4 times, be 6.1 times of fresh jujube; Content of magnesium is 4.3 times of spinach; Calcium content is 2.8 times of spinach, is 1.8 times of cow's milk; Iron content is 6.5 times of spinach, is 5.7 times of beef; Zinc content is 2.8 times of beef, is 15.9 times of spinach.Studies show that of Wang Yonghui etc. (2011), is rich in 18 seed amino acids in wheat seeding, especially to account for the ratio of total amino acid be 39% to essential amino acid, the ratio of essential amino acid and nonessential amino acid reaches 63%, the idealized model that meets FAO/WHO, proportional balancing method, is a kind of wholefood.In addition, in wheat seedling, also contain a large amount of other bioactive ingredients, as antioxidant reductase, chlorophyll, Polyphenols and active polysaccharide etc.It is 354.49 U/mgPr that Zhao Chungui etc. (2005) record wheat seedling juice SOD activity, is 7 times of grape, and activity of glutathione peroxidase is 83.63 U/mgPr; Its total antioxidation activity is respectively BHT, alpha-tocopherol 4.9 times and 7.2 times, and wherein Flavone content is 283 mg/kg.
Along with social progress, there is great change in people's eating habit, because nutrition is unbalanced, and caused various rich man's diseases.Wheat seeding, as a kind of pure natural, green, non-harmful raw-food material, is made into food, is conducive to regulate the nutrient balance in human body, the rich man's disease that treatment eating habit is brought.Yet wheat seeding self has that the easy brown stain of color, poor, the careless fishy smell of mouthfeel are strong, the easy shortcoming such as loss of nutritional labeling, allows the people of desire health hang back, thereby by people, is ignored for a long time.
Chinese patent CN00119778.9 discloses a kind of powder of wheat seedling juice preparation technology, and first it choose barley seedling, successively through cleaning, broken, squeeze the juice, filter, add dextrin in aqueous solution after concentrated after homogenizing, dry after, make powder of wheat seedling juice.The method adopts 145 ~ 165 ℃ of hot blasts to be dried, and process time is slightly long, and due to the oxidizing ferment that wheat seeding contains high-load, the method easily causes the forfeiture of oxidizing brown stain and nutritional labeling, has a strong impact on the quality of product.
Chinese patent CN200710134404.X discloses a kind of preparation method who controls anti-stick wall spray desiccation composite solid fruit and vegetable beverage, the method to fruits and vegetables successively through cleaning, cutting, blanching, making beating, homogeneous, concentrated after, need to add drying aid, the anticaking agent of different proportion, to solve the sticky wall problem of Juice when spraying, finally adopt again stabilizing agent to give granulation sizing.The solid fruit and vegetable beverage good stability that the method is produced, is difficult for bondingly, but its complex production process, mainly in the higher fruits and vegetables of sugar content; And its blanching temperature is up to 95 ℃-98 ℃, greatly destroyed various enzymes and the functional components in fruits and vegetables, simultaneously, the compositions such as the drying aid that needs in the method to add, anticaking agent, stabilizing agent, and the ratio of these compositions is relatively fixing, and these compositions easily affect the mouthfeel of its final products, be more unfavorable for the allotment that the product later stage carries out according to different flavor demand, limited the kind of final products, product utilization approach is narrow.
Summary of the invention
Goal of the invention of the present invention is: for adopting existing powder of wheat seedling juice preparation technology wheat seeding to be added to the outstanding problem in man-hour, as Part Methods adopts 145 ~ 165 ℃ of hot blasts, be dried, process time is slightly long, has a strong impact on product quality; Adopt the anti-stick wall spray drying process of control to add man-hour to wheat seeding, blanching temperature, up to 95 ℃-98 ℃, can greatly destroy enzyme and functional components wherein; Add the compositions such as drying aid, anticaking agent, stabilizing agent, can affect the mouthfeel of final products, limited the kind of product; For these problems, provide a kind of processing method of wheat seeding and the instant wheat seedling powder of preparation and wheat seeding fiber powder.The present invention can effectively reduce blanching temperature, and the functional components in wheat seeding is at utmost retained, simultaneously wheat seeding juice Direct spraying, by controlling spray art parameter, obtained good spray effect, and technique is simple, easy to operate, spray time is short, and product does not lump.The present invention can effectively retain the original nutritional labeling of wheat seeding product, color and luster and local flavor, can carry out seasoning according to consumer demand, has made up the existing various shortcoming of wheat seeding juice beverage.Meanwhile, the filter residue after wheat seeding juice extracts, through freeze drying, can be prepared as wheat seeding fiber powder, can be used for adding in all kinds of Flour product as natural colouring matter and its dietary fiber content of increase.The present invention can make full use of wheat seeding resource, has improved economic worth.
To achieve these goals, the present invention adopts following technical scheme:
A processing method for wheat seeding, comprises the steps:
(1) pretreatment: getting wheat seeding is raw material, cleans up, standby;
(2) protect look: by blanching 2-8min in the compound colour protecting liquid of 70 ℃-85 ℃ of the wheat seeding immersions after step (1) cleaning, after blanching, by wheat seeding screen filtration, be cooled to room temperature;
(3) making beating: the wheat seeding that step (2) is cooled to room temperature moves in disintegrating machine, adds water and carries out crushing and beating, the wheat seeding juice of must pulling an oar, and wherein, the mass ratio of wheat seeding and water is 1:4-8;
(4) filter: the wheat seeding juice of pulling an oar filters, and obtains the first filtrate and the first filter residue;
(5) homogeneous: the first filtrate is poured in modified homogenizer, is to carry out high-pressure homogeneously twice at 60 ~ 70 ℃ in temperature, and primary pressure is 20 ~ 25MPa, time is 3-10min, secondary pressure is 20 ~ 25MPa, and the time is 3-10min, obtains homogeneous wheat seeding juice;
(6) spraying is dry: homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 170 ℃-190 ℃, feed rate is 250mL/h-265mL/h, and leaving air temp is 55 ℃-75 ℃, and atomisation pressure is 0.15MPa-0.5MPa;
In described step (2), in the compound colour protecting liquid of every 100mL, contain 0.01-0.05g citric acid, 0.02-0.08g ascorbic acid, 0.5-2.5g sodium chloride.
In described step (1), choosing growth time is 30-60 days, and the wheat seeding that length is 25 ~ 30cm, as raw material, cleans up, and is cut into the segment of 1-2cm, standby.
In described step (2), by blanching 6min in the compound colour protecting liquid of 75 ℃ of the wheat seeding immersions after step (1) cleaning, after blanching, by wheat seeding screen filtration, be cooled to room temperature.
In described step (2), in the compound colour protecting liquid of every 100mL, contain 0.03g citric acid, 0.07g ascorbic acid, 1.5g sodium chloride.
In described step (2), the wheat seeding after step (1) is cleaned immerses blanching 6min in the compound colour protecting liquid of 75 ℃, and after blanching, by wheat seeding screen filtration, then water flushing, is cooled to room temperature.
In described step (3), the wheat seeding that step (2) is cooled to room temperature moves in disintegrating machine, and add water and carry out crushing and beating, the wheat seeding juice of must pulling an oar, wherein, the mass ratio of wheat seeding and water is 1:6.
In described step (4), the wheat seeding juice of pulling an oar filters, and obtains initial filter filtrate and initial filter filter residue, and initial filter filter residue sieves after press filtration, obtains secondary filtrate and the first filter residue, and initial filter filtrate and secondary filtrate are merged, and obtains the first filtrate.
In described step (4), adopt 50-300 eye mesh screen to pull an oar wheat seeding juice is filtered.
In described step (6), homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 180 ℃, and feed rate is 260mL/h, and leaving air temp is 65 ℃, and atomisation pressure is 0.3MPa.
In described step (6), homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, adopt vacuum aluminium foil to pack instant wheat seedling powder.
The first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, then under-20 ℃, the condition of 2-10Pa, lyophilization 24h, then pulverize, obtains wheat seeding fiber powder.
The first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, then under-20 ℃, the condition of 2-10Pa, the dry 24h of China, then pulverize, obtains wheat seeding fiber powder, adopts vacuum aluminium foil to pack wheat seeding fiber powder.
The first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, then under-20 ℃, the condition of 2-10Pa, lyophilization 24h, then pulverize, crosses 50-300 mesh sieve, obtains wheat seeding fiber powder.
The instant wheat seedling powder that adopts the processing method of aforementioned wheat seeding to prepare.
The wheat seeding fiber powder that adopts the processing method of aforementioned wheat seeding to prepare.
The processing method of wheat seeding provided by the invention, comprises the steps: pretreatment, protects look, making beating, filtration, homogeneous, spraying be dry.Wheat seeding in the present invention, through protecting after look step, can make the careless fishy smell of wheat seeding obviously reduce, and even disappears, and there will not be the careless fishy smell of wheat seeding in prepared instant wheat seedling powder; Meanwhile, can better protect the original color and luster of wheat seeding, and color and luster is stable, through spraying dry after and colour-fast in later stage normal temperature storage process.
Meanwhile, the present invention, on spray-dired basis, increases the compound look that protects of blanching and operates, and by adopting compound colour protecting liquid in conjunction with semi-scalding, can effectively reduce blanching temperature, maximizes the destruction of reducing the functional components in wheat seeding; By the combination of compound colour protecting liquid and semi-scalding, be more conducive to remove original careless fishy smell in wheat seeding, the product of preparation is retained under the prerequisite of original wheat seeding color and luster, make slightly delicate fragrance of product, significantly improve product quality.With Chinese patent CN00119778.9(powder of wheat seedling juice preparation technology) 145 ~ 165 ℃ of heated-air dryings of employing, easily cause the forfeiture of oxidizing brown stain and nutritional labeling, the quality that has a strong impact on product is compared, the present invention protects the combination of look by compound colour protecting liquid and blanching, can effectively reduce heat iron temperature and time.The oxidizing ferment that contains high-load in wheat seeding, the reduction of heat iron temperature and time, can make the functional component in wheat seeding be maximized reservation.
Chinese patent CN200710134404.X(preparation method who controls anti-stick wall spray desiccation composite solid fruit and vegetable beverage) in, need to add drying aid, the anticaking agent of different proportion, to solve the sticky wall problem of Juice when spraying, affected the mouthfeel of final products, more limited the kind of final products, and its blanching temperature, up to 95 ℃-98 ℃, has greatly destroyed various enzymes and the functional components in fruits and vegetables; Compare with this patent, the present invention adopts spraying dry, and only contain water in homogeneous wheat seeding juice, spraying easily, prevented from caking and sticky wall, spray effect is good, does not wherein also contain the materials such as drying aid, anticaking agent simultaneously, the product of final preparation is also safer, green, and is convenient to the later stage and uses as food ingredient.Meanwhile, spraying drying mode of the present invention is also different from fixedly beverage (or medicine electuary) processing, and the first allotment adopting is spray technique again, but directly adopts the spraying of homogeneous wheat seeding juice dry, and spray effect is better.
The present invention can directly be prepared into instant wheat seedling powder, it is through later stage allotment, can be made into different wheat seeding products, made up the various shortcoming that wheat seeding product exists, retained the most original nutritional labeling, color and luster and the local flavor of wheat seeding, allow consumer quick and easy in the situation that, drink the fully natural green beverage of nutrition delicious food.Meanwhile, can be used as auxiliary material, join various food the inside, make food there is light wheat seeding green, improve the nutrition of food simultaneously.
The present invention also makes wheat seeding resource be fully utilized, not only prepare instant wheat seedling powder, but also adopt Freeze Drying Technique to prepare wheat seeding fiber powder wheat seeding filter residue, and retained on the one hand the green of wheat seeding fiber, when wheat seeding juice is squeezed the juice, water-fast functional components is also retained simultaneously.Meanwhile, the functional components that adopts Freeze Drying Technique to make to be wherein incorporated in wheat seeding cellulose is also retained its functional activity.In this wheat seeding fiber powder, contain abundant insoluble diedairy fiber, have the wriggling that increases enteron aisle, adjust the effects such as microorganism species, it can be used as the auxiliary material of the Flour product food processings such as steamed bun, bread, noodles, biscuit, increase the wherein content of insoluble diedairy fiber, improve color and luster simultaneously.
The present invention adopts homogeneous wheat seeding juice Direct spraying, and after the more traditional allotment of its spray effect, spray effect is good, sticky wall, and powder disperses.Meanwhile, the present invention is directly prepared into instant wheat seedling powder, can match with other components, and after heterogeneous body wheat seeding juice and the allotment of other components, then it is dry to spray; Applicant tests allocating rear spraying simultaneously, discovery spray effect is poor, and easily stop up shower nozzle, may with wheat seeding in water-soluble component more, after adopting the allotments such as sucrose, be prone to precipitation, the phenomenons such as flocculation are relevant, so the present patent application people thinks after being not suitable for that wheat seeding juice is allocated as to various types of beverages, spray again.The instant wheat seedling powder that the present invention adopts wheat seeding to prepare, it is the brand-new solid beverage of a kind of similar " instant coffee ", the present invention can fully retain original nutritional labeling in wheat seeding, as solubility abundant in wheat seeding and insoluble dietary fiber, protein, mineral matter, vitamin etc., and other compositions favourable to health, as materials such as total phenol, flavones, forulic acid, superoxide dismutases (SOD), that the product finally obtaining has is anti-oxidant, hypoglycemic, the effect of reducing blood lipid, the aspect such as anti-ageing, anticancer.
In sum, the present invention can balanced diet structure, and balancing human body nutrition provides human body desired nutritional every day comprehensively, and the prevention of health and modern civilization diseases and treatment are had to important function.Product prepared by the present invention can be removed original careless fishy smell in wheat seeding and make slightly delicate fragrance of product, fully retain original nutritional labeling in wheat seeding simultaneously, that the product obtaining has is anti-oxidant, hypoglycemic, the effect of reducing blood lipid, the aspect such as anti-ageing, anticancer, is convenient to again the later stage to be allocated as differently flavoured product.Meanwhile, the filter residue of generation also can be used as food auxiliary material, increases its dietary fiber content, adjusts food color.The present invention has important reference value for the intensive processing utilization of wheat seeding, and product has wide market potential.
The specific embodiment
Disclosed all features in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this description, unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
Embodiment 1
(1) pretreatment: select growth about 45 days, the new fresh and tender wheat seeding that length is 25 ~ 30cm is raw material, without phenomenons such as rotten, jaundice, moths.With cutter, from liftoff 3cm left and right, cut and cut off, remove impurity and sandy soil, immerse in clear water and wash, water is rinsed well, and the also cut growth that drains the water is that 2cm section is standby, and in whole operating process, the time of links will shorten as far as possible, in order to avoid there is brown stain before protecting look, affect following process.
(2) protect look: by blanching 6min in the compound colour protecting liquid of 75 ℃ of the rapid immersions of pretreated wheat seeding, with passive oxidation enzymatic activity and the careless fishy smell of removal,, prevent in process, the generation enzymatic browning of being heated, affects product quality meanwhile.Wherein, in the compound colour protecting liquid of every 100mL, contain 0.03g citric acid, 0.07g ascorbic acid, 1.5g sodium chloride.Blanching is protected to the wheat seeding screen filtration after look, and water flushing is cooled to room temperature.
(3) making beating: the wheat seeding that is cooled to room temperature is moved in high-speed tissue mashing machine, add water and carry out crushing and beating, the wheat seeding juice of must pulling an oar.Wherein, being cooled to the wheat seeding of room temperature and the mass ratio of water is 1:6, and solid-liquid ratio is 1:6.
(4) filter: the wheat seeding juice of pulling an oar filters with 150 eye mesh screens, obtains initial filter filtrate and initial filter filter residue, initial filter filter residue is crossed 150 mesh sieves after press filtration, obtains secondary filtrate and the first filter residue, and initial filter filtrate and secondary filtrate are merged, and obtains the first filtrate.
(5) homogeneous: the first filtrate is poured in modified homogenizer, is to carry out high-pressure homogeneously twice at 60 ~ 70 ℃ in temperature, and pressure is 20MPa for the first time, and pressure is 25MPa for the second time, and twice homogenizing time is respectively 5min.The object of homogeneous is to prevent product layering, precipitation, makes wheat seeding juice finer and smoother, is conducive to the stable of end product quality and local flavor.
(6) spraying is dry: homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 180 ℃, and the feed rate of homogeneous wheat seeding juice is 260mL/h, and solid-liquid ratio is 1:6, and leaving air temp is 65 ℃, and atomisation pressure is 0.3MPa.Instant wheat seedling powder is taken out to oxygen, filled nitrogen by aluminizer bag vacuum, lucifuge, packing.
Take 6.5 grams of instant wheat seedling powders (butt) in the present embodiment, as an independent packaging, after adding the warm water 100mL of 60 ~ 70 ℃ to brew, drinkable.
By the first filter residue, after-50 ℃ of freezing 10h, then under-20 ℃, the condition of 10Pa, vacuum sublimation is dried 24h, thereby completes freeze drying.After freeze drying, pulverize, then adopt vacuum aluminium foil to pack, obtain wheat seeding fiber powder.
The main function composition containing in the instant wheat seedling powder of embodiment 1 preparation is measured
1) measure total phenol
Wheat seeding juice instant solid beverage powder obtains alcohol extract with the ultrasonic extraction of ethanol, is the material that polarity is stronger in alcohol extract mostly.This experiment be take gallic acid as standard items, measures total phenol content in wheat seeding juice instant solid beverage.
Instant wheat seedling powder total phenol content measurement result is as follows: absorbance is 0.054, and total phenol mass concentration is 0.00048mg/mL, and total phenol content is 0.24%.
2) measure general flavone
Phenolic compound mainly comprises the materials such as flavonoids, take rutin as standard items, measures general flavone content in wheat seeding juice instant solid beverage.
Instant wheat seedling powder determination of total flavonoids result is as follows: absorbance is 0.012, and total phenol mass concentration is 0.00057mg/mL, and total phenol content is 0.036%.
3) measure forulic acid
To ferulaic acid content in instant wheat seedling powder and replication 3 times, get its mean value, result shows, average content is 0.24 μ g/mL.
4) instant wheat seedling powder to hexichol for bitter taste hydrazine free radical (DPPH) removing ability
The antioxidation activity of the removing ability reaction measured object of DPPH, and easy and simple to handle quick, sensitive.
The domestic report having no at present about wheat seeding juice instant solid beverage scavenging ability of DPPH free radical, but there are some researches show, wheat seeding juice has higher non-oxidizability, and its TAC is BHT and alpha-tocopherol 4.9 times and 7.2 times, to the inhibiting rate of DPPH free radical, is 36.74%.Experimental result shows, the instant wheat seedling powder of embodiment 1 preparation reaches 52.1% to the clearance rate of DPPH free radical.
5) mensuration of other radical scavenging activities
Instant wheat seedling powder is to hydroxy radical (OH), ultra-oxygen anion free radical (O
2 -) both removing ability is respectively: 30%, 75.25%.
The instant wheat seedling powder that the present embodiment is prepared protect chromatic effect the best.Result of the test shows: wheat seeding juice instant solid beverage has stronger antioxidation in vitro ability, and DEVELOPMENT PROSPECT is wide.
Embodiment 2
(1) pretreatment: select growth about 60 days, the new fresh and tender wheat seeding that length is 25 ~ 30cm is raw material, without phenomenons such as rotten, jaundice, moths.With cutter, from liftoff 3cm left and right, cut and cut off, remove impurity and sandy soil, immerse in clear water and wash, water is rinsed well, and the also cut growth that drains the water is that 1.5cm section is standby, and in whole operating process, the time of links will shorten as far as possible, in order to avoid there is brown stain before protecting look, affect following process.
(2) protect look: by blanching 3min in the compound colour protecting liquid of 85 ℃ of the rapid immersions of pretreated wheat seeding, with passive oxidation enzymatic activity and the careless fishy smell of removal,, prevent in process, the generation enzymatic browning of being heated, affects product quality meanwhile.Wherein, in the compound colour protecting liquid of every 100mL, contain 0.01g citric acid, 0.03g ascorbic acid, 0.5g sodium chloride.Blanching is protected to the wheat seeding screen filtration after look, and water flushing is cooled to room temperature.
(3) making beating: the wheat seeding that is cooled to room temperature is moved in high-speed tissue mashing machine, add water and carry out crushing and beating, the wheat seeding juice of must pulling an oar.Wherein, being cooled to the wheat seeding of room temperature and the mass ratio of water is 1:7, and solid-liquid ratio is 1:7.
(4) filter: the wheat seeding juice of pulling an oar filters with 150 eye mesh screens, obtains the first filtrate and the first filter residue.
(5) homogeneous: the first filtrate is poured in modified homogenizer, is to carry out high-pressure homogeneously twice at 70 ℃ in temperature, and pressure is 25MPa for the first time, and homogenizing time is 3min, and pressure is 22MPa for the second time, and homogenizing time is 8min.The object of homogeneous is to prevent product layering, precipitation, makes wheat seeding juice finer and smoother, is conducive to the stable of end product quality and local flavor.
(6) spraying is dry: homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 185 ℃, and the feed rate of homogeneous wheat seeding juice is 250mL/h, and solid-liquid ratio is 1:7, leaving air temp is 75 ℃, and atomisation pressure is 0.45MPa.Instant wheat seedling powder is taken out to oxygen, filled nitrogen by aluminizer bag vacuum, lucifuge, packing.
Take 6.5 grams of instant wheat seedling powders (butt) in the present embodiment, as an independent packaging, after adding the warm water 100mL of 60 ~ 70 ℃ to brew, drinkable.
By the first filter residue, after-50 ℃ of freezing 6h, then under-20 ℃, the condition of 5Pa, vacuum sublimation is dried 24h, thereby completes freeze drying.After freeze drying, pulverize, then adopt vacuum aluminium foil to pack, obtain wheat seeding fiber powder.The instant wheat seedling powder that the present embodiment is prepared and wheat seeding fiber powder to protect chromatic effect better.
Embodiment 3
(1) pretreatment: select growth about 40 days, the new fresh and tender wheat seeding that length is 25 ~ 30cm is raw material, without phenomenons such as rotten, jaundice, moths.With cutter, from liftoff 3cm left and right, cut and cut off, remove impurity and sandy soil, immerse in clear water and wash, water is rinsed well, and the also cut growth that drains the water is that 2cm section is standby, and in whole operating process, the time of links will shorten as far as possible, in order to avoid there is brown stain before protecting look, affect following process.
(2) protect look: by blanching 8min in the compound colour protecting liquid of 70 ℃ of the rapid immersions of pretreated wheat seeding, with passive oxidation enzymatic activity and the careless fishy smell of removal,, prevent in process, the generation enzymatic browning of being heated, affects product quality meanwhile.Wherein, in the compound colour protecting liquid of every 100mL, contain 0.05g citric acid, 0.07g ascorbic acid, 2.2g sodium chloride.Blanching is protected to the wheat seeding screen filtration after look, and water flushing is cooled to room temperature.
(3) making beating: the wheat seeding that is cooled to room temperature is moved in high-speed tissue mashing machine, add water and carry out crushing and beating, the wheat seeding juice of must pulling an oar.Wherein, being cooled to the wheat seeding of room temperature and the mass ratio of water is 1:4, and solid-liquid ratio is 1:4.
(4) filter: the wheat seeding juice of pulling an oar filters with 300 eye mesh screens, obtains the first filtrate and the first filter residue.
(5) homogeneous: the first filtrate is poured in modified homogenizer, is to carry out high-pressure homogeneously twice at 60 ℃ in temperature, and pressure is 20MPa for the first time, and homogenizing time is 10min, and pressure is 22MPa for the second time, and homogenizing time is 6min.The object of homogeneous is to prevent product layering, precipitation, makes wheat seeding juice finer and smoother, is conducive to the stable of end product quality and local flavor.
(6) spraying is dry: homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 170 ℃, and the feed rate of homogeneous wheat seeding juice is 265mL/h, and solid-liquid ratio is 1:4, leaving air temp is 55 ℃, and atomisation pressure is 0.20MPa.Instant wheat seedling powder is taken out to oxygen, filled nitrogen by aluminizer bag vacuum, lucifuge, packing.
Take 6.5 grams of instant wheat seedling powders (butt) in the present embodiment, as an independent packaging, after adding the warm water 100mL of 60 ~ 70 ℃ to brew, drinkable.
By the first filter residue, after-50 ℃ of freezing 8h, then under-20 ℃, the condition of 8Pa, vacuum sublimation is dried 24h, thereby completes freeze drying.After freeze drying, pulverize, then adopt vacuum aluminium foil to pack, obtain wheat seeding fiber powder.The instant wheat seedling powder that the present embodiment is prepared and wheat seeding fiber powder to protect chromatic effect better.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (12)
1. a processing method for wheat seeding, is characterized in that, comprises the steps:
(1) pretreatment: getting wheat seeding is raw material, cleans up, standby;
(2) protect look: by blanching 2-8min in the compound colour protecting liquid of 70 ℃-85 ℃ of the wheat seeding immersions after step (1) cleaning, after blanching, by wheat seeding screen filtration, be cooled to room temperature;
(3) making beating: the wheat seeding that step (2) is cooled to room temperature moves in disintegrating machine, adds water and carries out crushing and beating, the wheat seeding juice of must pulling an oar, and wherein, the mass ratio of wheat seeding and water is 1:4-8;
(4) filter: the wheat seeding juice of pulling an oar filters, and obtains the first filtrate and the first filter residue;
(5) homogeneous: the first filtrate is poured in modified homogenizer, is to carry out high-pressure homogeneously twice at 60 ~ 70 ℃ in temperature, and primary pressure is 20 ~ 25MPa, time is 3-10min, secondary pressure is 20 ~ 25MPa, and the time is 3-10min, obtains homogeneous wheat seeding juice;
(6) spraying is dry: homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 170 ℃-190 ℃, feed rate is 250mL/h-265mL/h, and leaving air temp is 55 ℃-75 ℃, and atomisation pressure is 0.15MPa-0.5MPa;
In described step (2), in the compound colour protecting liquid of every 100mL, contain 0.01-0.05g citric acid, 0.02-0.08g ascorbic acid, 0.5-2.5g sodium chloride.
2. the processing method of wheat seeding according to claim 1, is characterized in that, in described step (1), choosing growth time is 30-60 days, and the wheat seeding that length is 25 ~ 30cm, as raw material, cleans up, and is cut into the segment of 1-2cm, standby.
3. the processing method of wheat seeding according to claim 1, is characterized in that, in described step (2), the wheat seeding after step (1) is cleaned immerses blanching 6min in the compound colour protecting liquid of 75 ℃, after blanching, by wheat seeding screen filtration, is cooled to room temperature.
4. the processing method of wheat seeding according to claim 1, is characterized in that, in described step (2), contains 0.03g citric acid, 0.07g ascorbic acid, 1.5g sodium chloride in the compound colour protecting liquid of every 100mL.
5. the processing method of wheat seeding according to claim 1, is characterized in that, in described step (3), the wheat seeding that step (2) is cooled to room temperature moves in disintegrating machine, adds water and carries out crushing and beating, the wheat seeding juice of must pulling an oar, wherein, the mass ratio of wheat seeding and water is 1:6.
6. according to the processing method of wheat seeding described in claim 1-5 any one, it is characterized in that, in described step (4), wheat seeding juice after making beating is filtered, obtain initial filter filtrate and initial filter filter residue, initial filter filter residue sieves after press filtration, obtains secondary filtrate and the first filter residue, initial filter filtrate and secondary filtrate are merged, obtain the first filtrate.
7. according to the processing method of wheat seeding described in claim 1-5 any one, it is characterized in that, in described step (6), homogeneous wheat seeding juice is sprayed dry, obtain instant wheat seedling powder, wherein, spray-dired EAT is 180 ℃, feed rate is 260mL/h, and leaving air temp is 65 ℃, and atomisation pressure is 0.3MPa.
8. according to the processing method of wheat seeding described in claim 1-5 any one, it is characterized in that, the first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, again under-20 ℃, the vacuum condition of 2-10Pa, lyophilization 24h, pulverizes after sample drying again, obtains wheat seeding fiber powder.
9. the processing method of wheat seeding according to claim 6, is characterized in that, the first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, again under-20 ℃, the vacuum condition of 2-10Pa, lyophilization 24h, pulverizes after sample drying again, obtains wheat seeding fiber powder.
10. the processing method of wheat seeding according to claim 7, is characterized in that, the first filter residue that step (4) is obtained is after-50 ℃ of freezing 6-10h, again under-20 ℃, the vacuum condition of 2-10Pa, lyophilization 24h, pulverizes after sample drying again, obtains wheat seeding fiber powder.
The 11. instant wheat seedling powders of preparing according to the processing method of wheat seeding described in claim 1-10 any one.
The wheat seeding fiber powder that described in 12. according to Claim 8-10 any one prepared by the processing method of wheat seeding.
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| CN104026456A (en) * | 2014-06-17 | 2014-09-10 | 四川嘉和食品有限责任公司 | Self-fermented cereal refined powder |
| CN104856207B (en) * | 2014-12-30 | 2020-03-24 | 昆明田康科技有限公司 | Production method of wheat seedling products |
| CN104542862B (en) * | 2015-01-19 | 2018-02-23 | 师旭朝 | Agropyron dietary-fiber biscuit and preparation method thereof |
| CN105410935B (en) * | 2015-11-25 | 2018-05-29 | 许浩文 | Green grass or young crops rolls into a ball prefabricated powder |
| CN105901692A (en) * | 2016-04-13 | 2016-08-31 | 郑州国食科技有限公司 | Preparation method of fermentation wheat grass nutrient solution |
| CN109007799A (en) * | 2018-07-17 | 2018-12-18 | 广州汝丽多食品科技有限公司 | A kind of processing method of wheat seedling powder |
| CN109222085B (en) * | 2018-08-07 | 2022-04-05 | 广州汝丽多食品科技有限公司 | Method for improving taste of wheat seedling powder |
| CN109329736A (en) * | 2018-11-09 | 2019-02-15 | 翁航 | A kind of agropyron steamed bun and preparation method |
| CN111165757A (en) * | 2020-01-10 | 2020-05-19 | 华南农业大学 | Anti-browning dried lemon slice and preparation method thereof |
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