CN102166004B - Method for preparing germinated brown rice by intensive pulse light - Google Patents
Method for preparing germinated brown rice by intensive pulse light Download PDFInfo
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- CN102166004B CN102166004B CN201110054727A CN201110054727A CN102166004B CN 102166004 B CN102166004 B CN 102166004B CN 201110054727 A CN201110054727 A CN 201110054727A CN 201110054727 A CN201110054727 A CN 201110054727A CN 102166004 B CN102166004 B CN 102166004B
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- brown rice
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Abstract
The invention relates to a preparation method of germinated brown rice, and in particular relates to a method for preparing germinated brown rice by intensive pulse light. The preparation method has the main technical characteristics that the processing process comprises the following steps: eliminating impurities, cleaning, draining, pre-processing in an intensive pulse light device, dipping in a neutral or acidulous soak solution, causing rice grains to sprout under the condition of keeping out of the sun, passivating, drying, and vacuum packaging in different bags. The invention provides a preparation method of germinated brown rice, which has short processing flow and simple and easy technical process. In the method, no chemical bactericides are added, thereby avoiding secondary pollution of the germinated brown rice, reducing environmental pollution, and extremely lowering influence on the internal quality of the germinated brown rice in the processing process. The prepared germinated brown rice is easy to boil and adsorb, has good taste, combines various edible advantages of various types of germinated brown rice in the market and is an ideal principal food product for people.
Description
Technical field
The present invention relates to a kind of preparation method of sprouted unpolished rice, particularly a kind of method that adopts the pulse high light to prepare sprouted unpolished rice.
Background technology
Brown rice is the product of being made up of chaff layer, plumule and endosperm after the shelling of paddy rice huller paddy, has very high nutritive value, by developed country be called longevity meter.But the periphery of brown rice is wrapped in by fibr tissue, and its water imbibition and dilatancy are all very poor, causes the brown rice mouthfeel bad, and digestion time is long, is difficult to digest and assimilate.Therefore, improving brown rice food flavor quality becomes inevitable.
According to the science report, brown rice not only can remedy above-mentioned these defectives through germinateing, and can also effectively improve the nutritive value and the physiological function of brown rice.Sprouted unpolished rice is cultivated brown rice exactly under uniform temperature, humidity, wait to germinate to the product of the dry gained in back to a certain degree.Its essence is exactly that enzymes a large amount of in the brown rice is activated in germination process and discharges, and is converted into the process of free state from combining attitude.Because this physiological change process, the crude fibre cortex of brown rice is softening by enzymolysis, and it is soft that crust becomes, and partially protein is decomposed into amino acid, and starch changes carbohydrate into, and the organoleptic properties of food and local flavor are improved; And keeping abundant vitamin (VB
1, VB
2, VB
6, V
C, V
E), more produced the multiple composition that promotes health with disease preventing and treating that has nutritional labeling such as mineral matter (Mg, Fe, Ca) and dietary fiber the time, like GABA, phytic acid etc.Therefore, sprouted unpolished rice and goods thereof be a kind of consumption near highed milled rice, nutritional labeling substantially exceeds rice, and has the staple food product of a new generation of wide variety of functions property curative effect more " doctor's food homology ".
But, brown rice in germination process because the metabolism of itself and rot easily and produce fermentation stink and stench attached to the microbial reproduction on grain of rice surface has had a strong impact on the quality of sprouted unpolished rice.At present, for fear of the appearance of these problems, mainly be employed in and add chemical methodes such as acid, ozone or hypochlorous acid in the soak, but these methods cause the secondary pollution of product easily, the processing cost that increases enterprise has also reduced product quality simultaneously.Therefore, develop easy, quick, safe new technology and method and promote brown rice germination, have important practical significance.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of sprouted unpolished rice; Not only can shorten greatly sprouted unpolished rice process-cycle, improve working (machining) efficiency, can also make that the brown rice of preparation has the mouthfeel better than general brown rice, be easy to boiling, nutritive value is higher and safety non-pollution.
For realizing the object of the invention, technical scheme of the present invention is such:
A kind of method that adopts the pulse high light to prepare sprouted unpolished rice is removed impurity and the brown rice processed of shelling for processing raw material with finished product brown rice or with paddy, processes according to the following steps:
1, the brown rice particle of impurity in the brown rice and maturity difference such as tender, thin is rejected, choose the brown rice grain of big or small uniformity,, with the distilled water cleaning, drain again with running water flush away brown rice surface dirt;
2, the brown rice after will cleaning places the pulse hard light device to carry out preliminary treatment 1 ~ 10min; Pulse hard light device parameter is provided with scope: dodge according to number of times is 30 ~ 60n/s, dodge according to be spaced apart 0 ~ 10s, input voltage is that 500 ~ 3000v, pulsation width are 20 ~ 800 μ s; Remove brown rice particle surface microorganism, activate inner combination enzyme;
3, brown rice being placed 20 ~ 30 ℃ neutrality or faintly acid pH value is that 4 ~ 6 soak soaks 4 ~ 12h;
4, under 25 ~ 40 ℃ of conditions, make the grain of rice lucifuge 12 ~ 30h that germinates, every at a distance from 2h spray distilled water or faintly acid soak once, treat that brown rice germination grows to 0.5 ~ 1.0mm to bud length after, 100 ~ 130 ℃ of enzymatic inactivations of carrying out 10 ~ 20min;
When soak time less than 4h, and germinating time is less than 12h, because brown rice can not all germinate, so the improvement of unpolished-rice nutrient composition and mouthfeel is also insufficient.When soak time greater than 12h, and germinating time causes the decline of the nutrient composition content except that dietary fiber owing to excessively germinate during greater than 30h, the bud of excessively growing up makes that the outward appearance of brown rice is undesirable, so preparation efficiency decline is neither be preferred.If soaking temperature is less than 20 ℃, and germination temperature is less than 25 ℃, and it is longer to reach required germination length time so.In like manner, if soaking temperature greater than 30 ℃, and germination temperature is greater than 40 ℃, undesirable rotting possibly take place in brown rice so.
If treatment temperature and time reduce or shorten than said scope respectively, the biochemical reaction in the sprouted unpolished rice is slow so, thereby causes the undesirable decline of mouthfeel quality.On the other hand; If treatment temperature and time improve or lengthening than described scope respectively, the biochemical reaction in the brown rice is violent so, and big molecular breakdown is excessive; It is serious to cause nutriment to run off, thereby equally undesirably the quality of sprouted unpolished rice is reduced widely.
5, adopt 40 ~ 60 ℃ of hot blasts that sprouted unpolished rice is dried, make the moisture of sprouted unpolished rice drop to the safe storage moisture below 14%;
If treatment temperature reduces than said scope, moisture might reach more than 20% in the sprouted unpolished rice so, thereby reduces the shelf-life of sprouted unpolished rice.On the other hand, if treatment temperature improves than described scope, the nutritional labeling in the sprouted unpolished rice will be lost so, reduction to a certain degree the edibility of sprouted unpolished rice.
6, the sprouted unpolished rice for preparing is vacuum-packed by required splitting.
The pulse high light is that the method that adopts intense white light to dodge photograph is sterilized as novel cold sterilization technology, provides the power unit of high voltage and high current pulse and the inert gas lamp that energy is provided to form by one.The inert gas lamp produces the light of similar sunshine under the effect of high pulse voltage, the microorganism of food surface is killed and inhibitory action, and do not influenced flavours in food products and nutritional labeling.Find also that through experiment the pulse high light can promote germination, on conventional brown rice germination basis, combine the pulse high light; Can improve the vigor of enzyme, thereby shorten germinating time, enhance productivity; Therefore, in the process of conventional sprouted unpolished rice preparation, in conjunction with pulse high light technology; To the germination percentage of raising brown rice, germinating energy, shortening germination cycle and assurance sprouted unpolished rice safety of products are pollution-free to have significance.
In the brown rice germination process, can not produce the foreign odor and the smelly problem of rotting through said method, microbial contamination is had higher controllable safety property.In addition, cooking and mouthfeel all are similar to common highed milled rice, and exceed doubly a lot than the nutritive value and the content of physiologically active substance of pure white.
Compared with prior art, the present invention has following substantive distinguishing features and obvious improvement:
The invention provides the preparation method of a sprouted unpolished rice that work flow is short, technical process is simple and easy to do, provided the optimal treatment condition that utilizes pulse high light stratification and effective sterilization.This method needn't add chemical bactericide, has both avoided the secondary pollution of sprouted unpolished rice, has reduced environmental pollution, has also at utmost reduced the influence of process to the sprouted unpolished rice inherent quality.The sprouted unpolished rice that makes is prone to boiling, be prone to absorbs, mouthfeel is good, has at present the edible advantage of various sprouted unpolished rices on the market concurrently, is the desirable staple food products of people.
Description of drawings:
Fig. 1 is a flow chart of the present invention.
The specific embodiment:
Embodiment 1 (optimal case): the brown rice 100g after the removal of impurities, clean with distilled water after the flushing with clean water, drain; Placing the pulse hard light device, is that 500v, pulsation width are to shine 8min under the condition of 500 μ s in that to dodge according to number of times be 50n/s, dodge according to being spaced apart 3s, input voltage; Placing temperature then is 28 ℃, and Ph is the immersion 8h in 5.5 the 2000mL soak; Again at 35 ℃ of following lucifuge rudiment 20h, during every at a distance from the 2h spray once, treat that (carry out passivation after 0.5 ~ 1.0mm), this moment, germination percentage reached 98% to brown rice germination to certain-length; Hot-air seasoning under 60 ℃ of conditions at last, the moisture that makes sprouted unpolished rice is 10%; Last splitting is vacuum-packed to get final product.
Embodiment 2:
Brown rice 100g after the removal of impurities cleans with distilled water after the flushing with clean water, drains; Placing the pulse hard light device, is that 3000v, pulsation width are to shine 5min under the condition of 200 μ s in that to dodge according to number of times be 30n/s, dodge according to being spaced apart 5s, input voltage; Placing temperature then is that the distilled water of 20 ℃ 2000mL soaks 10h; Again at 30 ℃ of following lucifuge rudiment 24h, during every at a distance from the 2h spray once, treat that (carry out passivation after 0.5 ~ 1.0mm), this moment, germination percentage reached 93% to brown rice germination to certain-length; Hot-air seasoning under 60 ℃ of conditions at last, the moisture that makes sprouted unpolished rice are that 14% the back splitting is vacuum-packed gets final product.
Embodiment 3: the brown rice 100g after the removal of impurities, clean with distilled water after the flushing with clean water, and drain; Placing the pulse hard light device, is that 2000v, pulsation width are to shine 3min under the condition of 100 μ s in that to dodge according to number of times be 40n/s, dodge according to being spaced apart 0s, input voltage; Placing temperature then is 25 ℃, and pH soaks 6h in 6 the 2000mL faintly acid soak; Again at 38 ℃ of following lucifuge rudiment 18h, during every at a distance from 2 hours sprays once, (0.5 ~ 1.0mm) carries out passivation, and germination percentage reaches 88% at this moment to certain-length to treat brown rice germination; Hot-air seasoning under 60 ℃ of conditions at last, the moisture that makes sprouted unpolished rice are that 12% the back splitting is vacuum-packed gets final product.
Embodiment 4: the brown rice 100g after the removal of impurities, clean with distilled water after the flushing with clean water, and drain; Place the pulse hard light device; In that to dodge according to number of times be 60n/s, dodge according to being spaced apart 8s, input voltage is that 800v, pulsation width are to shine 10min under the condition of 300 μ s; Placing temperature then is 30 ℃, and pH soaks 4h in 4 the 2000mL faintly acid soak; 26 ℃ of following lucifuge rudiment 28h, during every at a distance from 2 hours sprays once, (0.5 ~ 1.0mm) carries out passivation, and germination percentage reaches 91% at this moment to certain-length to treat brown rice germination; Hot-air seasoning under 60 ℃ of conditions at last, the moisture that makes sprouted unpolished rice are that 11% the back splitting is vacuum-packed gets final product.
Claims (1)
1. method that adopts the pulse high light to prepare sprouted unpolished rice is removed brown rice that impurity and shelling process for processing raw material with finished product brown rice or with paddy, it is characterized in that, processes according to the following steps:
1) the brown rice particle of impurity in the brown rice and maturity difference such as tender, thin is rejected, choose the brown rice grain of big or small uniformity,, with the distilled water cleaning, drain again with running water flush away brown rice surface dirt;
2) brown rice after will cleaning places the pulse hard light device to carry out preliminary treatment 1 ~ 10min; Pulse hard light device parameter is provided with scope: dodge according to number of times is 30 ~ 60n/s, dodge according to be spaced apart 0 ~ 10s, input voltage is that 500 ~ 3000v, pulsation width are 20 ~ 800 μ s; Remove brown rice particle surface microorganism, activate inner combination enzyme;
3) brown rice being placed 20 ~ 30 ℃ neutrality or faintly acid pH value is that 4 ~ 6 soak soaks 4 ~ 12h;
4) under 25 ~ 40 ℃ of conditions, make the grain of rice lucifuge 12 ~ 30h that germinates, every at a distance from 2h spray distilled water or faintly acid soak once, treat that brown rice germination grows to 0.5 ~ 1.0mm to bud length after, 100 ~ 130 ℃ of enzymatic inactivations of carrying out 10 ~ 20min;
5) adopt 40 ~ 60 ℃ of hot blasts that sprouted unpolished rice is dried, make the moisture of sprouted unpolished rice drop to the safe storage moisture below 14%;
6) sprouted unpolished rice for preparing is vacuum-packed by required splitting.
2, employing pulse high light according to claim 1 prepares the method for sprouted unpolished rice, it is characterized in that: with the brown rice after the removal of impurities, clean with distilled water after the flushing with clean water, drain; Placing the pulse hard light device, is that 500v, pulsation width are to shine 8min under the condition of 500 μ s in that to dodge according to number of times be 50n/s, dodge according to being spaced apart 3s, input voltage; Placing temperature then is 28 ℃, and the pH value is to soak 8h in the soak of 20 times of brown rice weight of 5.5; Again at 35 ℃ of following lucifuge rudiment 20h, during every at a distance from the 2h spray once, treat to carry out passivation behind brown rice germination to 0.5 ~ 1.0mm; Hot-air seasoning under 60 ℃ of conditions at last, the moisture that makes sprouted unpolished rice is 10%; Last splitting is vacuum-packed to get final product.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103191177B (en) * | 2013-04-07 | 2014-04-09 | 福建省农业科学院农业工程技术研究所 | Method for improving extraction ratio of general flavones of liana beans by quick-freezing and pulse technique |
| CN103478608B (en) * | 2013-09-04 | 2014-11-12 | 中南林业科技大学 | Pretreatment method for improving germination rate of brown rice |
| CN104472790B (en) * | 2014-11-26 | 2017-12-08 | 福建省农业科学院农业工程技术研究所 | A kind of Pueravia flower tea and preparation method thereof |
| CN104798482B (en) * | 2015-03-31 | 2017-12-15 | 渤海大学 | A kind of method for improving gamma aminobutyric acid content in germination peanut |
| CN112205199A (en) * | 2020-10-14 | 2021-01-12 | 南京财经大学 | Method for assisting quality stabilization and nutrient enrichment in brown rice germination process through irradiation of LED light source |
| CN114097999A (en) * | 2021-12-03 | 2022-03-01 | 安徽燕之坊食品有限公司 | Microbial treatment optimization process technology of germinated brown rice |
Citations (3)
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|---|---|---|---|---|
| CN1502261A (en) * | 2002-11-27 | 2004-06-09 | 希杰株式会社 | Method for preparing sprouting unpolished rice and sprouting unplished rice made by same |
| CN101044892A (en) * | 2006-04-01 | 2007-10-03 | 熊建富 | Method for producing sprouted rice |
| CN101283754A (en) * | 2008-04-29 | 2008-10-15 | 华中农业大学 | Production method of active germinated unpolished rice and its products |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1502261A (en) * | 2002-11-27 | 2004-06-09 | 希杰株式会社 | Method for preparing sprouting unpolished rice and sprouting unplished rice made by same |
| CN101044892A (en) * | 2006-04-01 | 2007-10-03 | 熊建富 | Method for producing sprouted rice |
| CN101283754A (en) * | 2008-04-29 | 2008-10-15 | 华中农业大学 | Production method of active germinated unpolished rice and its products |
Non-Patent Citations (2)
| Title |
|---|
| Guillou.S et al.Pulsed-light system as a novel food decontamination technology:a review.《Canadian Journal of Microbiology》.2007,第53卷(第7期),第813-821页. * |
| Vicente M et al.Pulsedlight for fooddecontamination: areview.《Trends in Food Science & Technology》.2007,第18卷(第9期),第464-473页. * |
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