CN107581471A - A kind of screening technique of mixed congee raw material - Google Patents
A kind of screening technique of mixed congee raw material Download PDFInfo
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- CN107581471A CN107581471A CN201710788287.2A CN201710788287A CN107581471A CN 107581471 A CN107581471 A CN 107581471A CN 201710788287 A CN201710788287 A CN 201710788287A CN 107581471 A CN107581471 A CN 107581471A
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Abstract
The present invention relates to field of food detection, discloses a kind of screening technique of mixed congee raw material.The present invention judges to screen whether raw material is suitable to mixed congee production by measuring the solid content stacking volume of the made raw material congee of mixed congee raw material.Short the time required to the method, required instrument is simple, cheap and easily-available, and experimental result is stable, and manual operation error is small compared with national standard method.By the method can quickly, it is directly perceived, effectively screen suitable mixed congee raw material, method is simple, easily operated, greatly improves the qualification rate of product, reduces the production cost of enterprise.This method simulates the production technology and formula of mixed congee, and closer to actual production, therefore reliable results have convincingness, suitable for industrial production and practical application.
Description
Technical field
The present invention relates to field of food detection, more particularly to a kind of screening technique of mixed congee raw material.
Background technology
Mixed congee is the traditional product in China, because of its abdomen fragrant and sweet delicious food again that can satisfy, is liked by consumers in general.Eight
The primary raw material of precious congee is cereal and beans, and main component is starch.The convenient easily attribute of canned products so that canned eight treasures (choice ingredients of certain special dishes)
Congee is in great demand for many years.Due to the particularity of processing technology, the mixed congee after high temperature sterilization, its cereal materialses water swelling, even
Rupture, dissolution much starch.The gelatinized corn starch and the water swellable cereal-granules of analysis of viscosity higher are the key components of congee body solid content,
Larger contribution is also provided for mixed congee stable system simultaneously.The raw material of different sources or lot number, its swelling volume and gelatinized corn starch
Viscosity differences are larger, directly affect state and cost of the product in shelf life.
National standard GB/T 31116-2014 provide that mixed congee shape solid content >=55.0%, single tank determines allowed minus deviation
For 5%, the average solid content of every batch of product is not less than sign value.To ensure that product meets national standard and production internal control mark
Accurate solid content, the qualification rate of product is improved, reduce production cost, except strictly to control production technology, screening is adapted to
Raw material also seem most important.
Even the solid for the mixed congee that the cereal materialses of the cereal materialses of same breed, different sources or producer are produced
Thing index also differs greatly, it is difficult to directly screen.Do not have a kind of unification, ripe mixed congee raw material screening side so far
Method, people are usually that raw material is fabricated into finished product, are detected according still further to the solids content detection method of national standard, according to testing result
Screen mixed congee raw material.But existing solids content detection method needs laboratory personnel's operation of sole duty, passes through for a long time
Placement and weighing and calculating repeatedly, result can be obtained.This solids content detection not only tedious process, and requiring
24h is placed after sterilization to be detected again, operation cycle length, during draining sample in addition, is toppled over speed, is toppled over area, inclines
Rake angle etc. operating process is all difficult unification, because the accidental error that personal operation technique is brought is inevitable and unmanageable.
In solids content detection field, the contradiction between measurement accuracy and measuring speed also never solves, also not it has been proposed that
A kind of used time is shorter, simple to operate, the screening technique of the stable mixed congee raw material of testing result.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of screening technique of mixed congee raw material, side simple to operate
Just, detection time is short, as a result stablizes, and is a kind of method that mixed congee raw material is effectively screened in quicklook.
The present invention concrete technical scheme be：This method comprises the following steps：
1) raw material is weighed：Accurately weigh mixed congee raw material to be put into resealable container, according to water and material quality ratio 16: 1-
18: 1 ratio adds pure water；
2) raw material congee is made：After Quick shaking dynamic sealing container, high temperature sterilization is carried out, obtains raw material congee；
3) swollen rate measurement：Raw material congee is cooled to after room temperature Quick shaking dynamic sealing container again, is then poured into raw material congee
In graduated cylinder, after standing 1-2h, the layering of raw material congee, upper strata is supernatant, and lower floor is solid content；
4) volume is read：Read supernatant liquid level scale, as cumulative volume；Solid content accumulation top in graduated cylinder is observed, is looked into
Whether horizontal see, as level directly reads bulking value, if unhorizontal, take inclined-plane axis scale to produce bottom as bulking value and consolidate
The volume of shape thing；
5) raw material is evaluated：Bottom solid content volume is bigger, and solid content contribution is more notable；The volume of bottom solid content is not more than
1/3 raw material of cumulative volume, judge that the raw material is unsuitable for mixed congee product.
Technical scheme seems simply to be not easy actually.The present invention is almost without other bibliography and technology
In the case of, by studying for a long period of time and testing, after rich experience, just find, it is within a certain period of time, solid in mixed congee
The stacking volume of shape thing is relatively stable and different material can show significant difference, can embody different originals to a certain extent
The swelling volume and viscosity property of material, and deposited between the size of the stacking volume of solid content and the swelling behavior of raw material
In monotonicity.According to the detection method of solids content in national standard, the swelling behavior that can analyze raw material is to influence solids content
Principal element, therefore, the present invention faster reflects the formation situation of raw material solid content by the ratio of stacking volume, fills up
Technological gap on mixed congee raw material screening.
Preferably, the quality error that mixed congee raw material and pure water are weighed in the step 1) is less than 0.25%.
Preferably, the temperature of pure water is more than 80 DEG C in the step 1).
Preferably, the sterilization temperature in the step 2) is 120-130 DEG C, sterilizing time 40-60min.
Preferably, sterilized in the step 2) using cannery retort.
Preferably, the step 2) or 3) in shake sealing container number be 8-10 times.
Quick shaking dynamic sealing container can avoid the particle in raw material congee viscous in container inner wall or conglomeration, make internal particle
It is dispersed.
Preferably, cooling procedure is cooled to room temperature using cold water in the step 3).
Preferably, solid content volume in bottom is 5 samples of parallel making in the step 4), read in volume result
Fall the average value of 3 numerical value after maximum and minimum value.
It is compared with the prior art, the beneficial effects of the invention are as follows：It is very short compared with conventional method the time required to this method,
More than 24h need not be placed after sterilization, it is only necessary to stand 1h.Required instrument is simple, cheap and easily-available, and experimental result is stable, with state
Mark method is identical with trend compared to result, and the error of manual operation is small.Can quickly, intuitively, effectively by the method
Suitable mixed congee raw material is screened, method is simple, easily operated, it is possible to increase the qualification rate of product, reduce the production of enterprise
Cost.This method simulates the production technology and formula of mixed congee, and closer to actual production, therefore reliable results have persuasion
Power, suitable for industrial production and practical application, mixed congee raw material can be filled up as a kind of straightforward procedure of mixed congee raw material screening
Technological gap in screening.
Embodiment
With reference to embodiment, the invention will be further described.
11 different sources or the glutinous rice raw material of producer, respectively with 1,2 ..., 11 numberings.
Embodiment 1
No. 1 glutinous rice raw material is chosen, 20g No. 1 glutinous rice raw material is placed in eight treasures gruel tank, adds 80 DEG C of pure water to 360g, just
Minus deviation is controlled within 0.5g.Capping, quickly shakes tank body, and then traverse is in sterilizing in basket.Carried out using cannery retort
Sterilization, 121 DEG C of sterilization temperature, time 40min.Sample after sterilization is taken out, and is cooled fast in cold water close to room temperature.
After cooling, sample quickly shakes to 10 times, then traverse stands 1h.Sample is quickly shaken 10 times, be poured into 500ml standard volumes
In cylinder.After standing 1h, bulking value is read.3 Duplicate Samples are done in repetition, and experimental result is averaged three times.
Embodiment 2-10
2-11 glutinous rice raw materials are chosen respectively, and remaining screening technique is same as Example 1.
Comparative example 1-11
1-11 glutinous rice raw materials are chosen respectively, and the preparation method of raw material congee is same as Example 1, then using national standard method
Detection：Raw material congee stands more than 24h, then it is m that the raw material congee that quality is m is poured over into quality120 mesh rotary strainers on, do not stir original
Expect congee, tilt sieve, after draining 5min, by rotary strainer and drain thing and weigh in the lump, quality m2, solid content is calculated as follows
X：X=(m2-m1)/m × 100%.
Embodiment 1-11 and comparative example 1-11 the selection result and measurement error are shown in Table 1.
The solid content and solid content volume of 1. 11 different sources of table or the glutinous rice raw material of producer
As can be seen from Table 1, same materials are carried out using two kinds of detection methods of solid content and solid content volume, body
Long-pending testing result and the testing result of content show completely the same trend and conclusion.From the point of view of relative error, solid content
More big compared with the detection method of solid content volume of the error of the detection method of content, such as No. 7 glutinous rice obtain 3 times with national standard method and put down
The mean error of row sample is 3.47%, and the mean error of 3 Duplicate Samples obtained using the inventive method is only 0.58%.It is real
The overall product value for applying a 1-11 is substantially the same, about 360mL, according to the inventive method, 4, No. 5 glutinous rice raw material average tap bodies
Product is all not more than the 1/3 of cumulative volume, and corresponding solid content is relatively low, it is not recommended that, may in being produced and processed for mixed congee
The solid content and the dilute denseness of system of finished product are influenceed, or even influences the stability and quality in product later stage.Remaining raw material is equal
It can be used, by contrast, the testing result of 1, No. 10 glutinous rice raw material is best, and swelling behavior is more prominent, for product after processing
Solid content contribution it is obvious, for the quality raw materials recommended.
Raw materials used in the present invention, equipment, it is the conventional raw material, equipment of this area unless otherwise noted；In the present invention
Method therefor, it is the conventional method of this area unless otherwise noted.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent transformation that technical spirit is made to above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (8)
- A kind of 1. screening technique of mixed congee raw material, it is characterised in that：This method comprises the following steps：1）Weigh raw material：Accurately weigh mixed congee raw material to be put into resealable container, according to water and material quality ratio 16:1-18:1 Ratio add pure water；2）Make raw material congee：After Quick shaking dynamic sealing container, high temperature sterilization is carried out, obtains raw material congee；3）Swollen rate measurement：Raw material congee is cooled to after room temperature Quick shaking dynamic sealing container again, and raw material congee then is poured into graduated cylinder In, after standing 1-2h, the layering of raw material congee, upper strata is supernatant, and lower floor is solid content；4）Volume is read：Read supernatant liquid level scale, as cumulative volume；Solid content accumulation top in graduated cylinder is observed, checking is No level, as level directly reads bulking value, if unhorizontal, inclined-plane axis scale is taken to produce bottom solid content as bulking value Volume；5）Raw material is evaluated：Bottom solid content volume is bigger, and solid content contribution is more notable；The volume of bottom solid content is no more than overall 1/3 long-pending raw material, judge that the raw material is unsuitable for mixed congee product.
- 2. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 1）In weigh raw material and The quality error of pure water is less than 0.25%.
- 3. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 1）The temperature of middle pure water For more than 80 DEG C.
- 4. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 2）In sterilization temperature For 120-130 DEG C, sterilizing time 40-60min.
- 5. the screening technique of the mixed congee raw material as described in claim 1 or 4, it is characterised in that the step 2）It is middle to use height Pressure retort is sterilized.
- 6. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 2）Or 3）In shake The number of sealing container is 8-10 times.
- 7. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 3）Middle cooling procedure is adopted Room temperature is cooled to cold water.
- 8. the screening technique of mixed congee raw material as claimed in claim 1, it is characterised in that the step 4）Middle bottom solid content Volume is 5 samples of parallel making, removes the average value of 3 numerical value after maximum and minimum value in testing result.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146312A (en) * | 2015-10-22 | 2015-12-16 | 四川省汇泉罐头食品有限公司 | Preparation method of eight-ingredient porridge |
| CN105211707A (en) * | 2015-10-22 | 2016-01-06 | 四川省汇泉罐头食品有限公司 | A kind of beauty treatment mixed congee and preparation method thereof |
-
2017
- 2017-09-04 CN CN201710788287.2A patent/CN107581471A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146312A (en) * | 2015-10-22 | 2015-12-16 | 四川省汇泉罐头食品有限公司 | Preparation method of eight-ingredient porridge |
| CN105211707A (en) * | 2015-10-22 | 2016-01-06 | 四川省汇泉罐头食品有限公司 | A kind of beauty treatment mixed congee and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 中国轻工总会质量标准部: "《QB/T2221-1996》", 1 March 1997 * |
| 钟瑞敏等: "《食品工艺学实验与生产实训指导》", 31 May 2015, 中国纺织出版社 * |
| 阮少兰等: "大米蒸煮品质的研究", 《粮食与饲料工业》 * |
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Application publication date: 20180116 |