1Rapid Viscometer RVA Rapid-20Product Introduction

Introduction to Rapid Viscosity Analyzer

Shanghai BaoshengRapid viscosity analyzer（Rapid Visco Analyzer）Rapid-20，RVAHigh sensitivity and accuracy are the choices for detecting low viscosity samples. Can be used for a wide range of measurementsGrain gelatinization characteristics, gelatinization degree analyzer, amylase activity measurement, saccharification power measurement, germination damage, analysis of gelatinization degree of modified starch and other indicators.Rapid viscosity analyzer can be applied tolow viscosityResearch in the fields of samples such as starch, non starch (colloids, proteins), and sauce food testing, as well as high viscosity samples such as puffed foods, candies, chocolates, and deformed cross-linked starch.

Shanghai BaoshengRapid viscosity analyzerRVA Rapid-20, forDomestic rapid viscosity analyzer, withBrabend viscosity analyzer、Perten waveRapid viscosity analyzerRVA4500、Landing numerical tester、AustraliaNewport RVATesting of the Rapid ViscometerThe RVA spectra have good comparability, and the RVA sample is used in small quantities with simple requirements for operating environmental conditions, making it very suitable for research related to material viscosity changes, especiallyResearch on the gelatinization characteristics of grains, gelatinization degree analyzer, amylase activity measurement, and saccharification power measurement instrument.

currentlyRapid viscosity analyzerRVA Rapid-20The analysis method has been adoptedInternational Grain Association（ICC）、American Agricultural Chemistry Association（AACC）、Australian Institute of Chemistry（RACI）andChina Grain Association（CNAGS）Accepted as a standard analytical method, it is currently used to analyze and test grains, processed grain products, and starch gelatinization propertiesEfficient analytical tools.

What isRVA?

RVAexactly.Rapid viscosity analyzer（Rapid Visco Analyser）The abbreviation. It is a method used to test the viscosity and its changes of test samplesInstruments. Reasonable design enables it to quickly heat or cool the sample or maintain a constant sample temperature, making it easier for users to choose testing conditions based on the purpose of the test.RVAIt is currently used for analyzing and testing grains, grain processed products, and starch gelatinization characteristicsEfficient analytical tools. More and more scientists around the world are using it to study the process quality characteristics of grain raw materials and the impact of various additives and processing techniques on the quality of grain products or other processed products.

two、Rapid viscosity analyzerRVA Rapid-20 application areas

1. Application of Rapid Viscometer RVA Rapid-20 in Grain Breeding and Cultivation Fields

useRVA measures the quality of wheat flour using a method similar to that used by the Brabant viscometer. The gelatinization characteristics of wheat flour were determined by RVA, and the correlation between different flour and the eating quality of Mantou, bread and noodles was studied. The use of a rapid viscosity analyzer can also provide a fast and convenient screening method for wheat breeding work.

1) Application of Rapid Viscometer RVA Rapid-20 in Wheat and Rice Hybridization and Breeding Research

2) Research on the application of RVA Rapid-20 rapid viscosity analyzer in the fields of grain germination damage and climate damage

3) Application of Rapid Viscometer RVA Rapid-20 in the Storage Field of Barley, Wheat, and Rice

4) Application of Rapid Viscometer RVA Rapid-20 on the Effect of Fertility Type and Nitrogen Application Level on the RVA Profile Characteristics of Japonica Rice Starch;

5) Application of Rapid Viscometer RVA Rapid-20 on the Impact of Sowing Date and Location on the RVA Profile Characteristics of Japonica Rice Starch in Different Ecological Types;

6) Application of Rapid Viscometer RVA Rapid-20 inStudy on the Variation of Starch Characteristics in Wheat Varieties and Its Relationship with Noodle Quality；

7) Application of Rapid Viscometer RVA Rapid-20 in the Study of the Dynamic Synthesis of Sucrose in Flag Leaves and Starch in Grains of Winter Wheat and the Enzyme Activities Related to It;

8) The RVA Rapid-20 rapid viscosity analyzer is applied for rice quality evaluation, and can be used to analyze the degree of ripening of pre cooked rice. The gelatinization analysis program shows that there is still a considerable amount of non gel substances when the degree of gel is changed to make the rice reach a good state. The storage period also affects the texture of rice. Fresh rice has a high viscosity, while the aging process makes the rice taste dry, hard, and loose. These changes can be monitored using RVA, which can reflect the effects of aging using peak viscosity and retrogradation values.

9) Application of Rapid Viscometer RVA Rapid-20 inDetermination of broken starch content in wheat flour(Alpha amylase method)GB/T 9826-2008)，Starch granules in wheat are mechanically damaged during the grinding process, resulting in damaged starch. Damage starch analyzer/The broken starch analyzer and RVA rapid viscosity analyzer can both detect the quality of wheat flour, as well as the germination ability, germination rate, and germination potential of barley, which are different from other seeds.

10) Study on the interaction between protein and starch during the aging process of indica rice using a rapid viscosity analyzer.

2. Application of Rapid Viscometer in Starch Field

1) Application of Rapid Viscometer RVA Rapid-20 inNatural starch or modified starch，just13Complete gelatinization property testing in minutesRapid viscosity analyzer(RVA) application in modified starch (acidic, oxidized, cross-linked, substituted starch), α - amylase activity, storage life of barley and rice, and quality prediction of noodles, Mantou, bread and other foods;

2) Rapid Viscometer RVA Rapid-20 Applied to High ViscosityReplace and crosslink food starch、Manufacturing of deformed starch and modification of modified starch;

3) Application of Rapid Viscometer RVA Rapid-20 in the Study of the Relationship between Grain Position Starch RVA Profile Characteristics and Edible Quality of Japonica Rice Starch;

4) Application of Rapid Viscometer RVA Rapid-20 inNorthern two-line hybrid japonica rice starchThe Relationship between RVA Spectral Characteristics and Taste Quality；

5) Application of RVA Rapid-20 rapid viscosity analyzer in the study of quality traits of low amylose and low protein content japonica rice resources;

6) The rapid viscosity analyzer RVA Rapid-20 is applied to quickly identify the starch viscosity characteristics of early indica rice with different apparent amylose contents in RVA spectra;

7) RVA Rapid-20 Rapid Viscometer for Evaluating the Enzymatic Hydrolysis Efficiency of Alpha amylase;

8) The RVA Rapid-20 rapid viscosity analyzer is used to detect five types of adulterated edible starch;

9) Rapid Viscometer RVA Rapid-20Application in modified starch and grain storage and processing.

10) Rapid viscometer RVA Rapid-20 modified starch refers to the use of physical, chemical or enzymatic treatment to introduce new functional groups on the starch molecules or change the size of starch molecules and the properties of starch granules, thereby changing the natural characteristics of starch (such as gelatinization temperature, thermal viscosity and its stability, freeze-thaw stability, gel force, film-forming property, transparency, etc.), so as to improve the performance of starch and expand its application scope, making it more suitable for the modified starch required by certain applications. In the actual production process, a rapid viscosity meter can be used to control the degree of denaturation of modified starch, providing a reliable and convenient means for the production of modified starch and product quality control.

3. Rapid Viscometer RVA Rapid-20 Applied in Grain Processing Field

1) Rapid Viscometer RVA Rapid-20 Applied to FlourGrinding and baking:Rapid viscosity analyzerRVA Rapid-20Can test starch quality, gluten quality, amylase activity, and climate damage；

2) Application of RVA Rapid-20 Rapid Viscometer in Starch Gelatinization Characteristics of Oat Flour;

3) Application of Rapid Viscometer RVA Rapid-20 inSqueezing and puffing food and feed: Maturity of fast food, breakfast cereals, animal feed；

4) Application of Rapid Viscometer RVA Rapid-20 inNoodles and macaroni: the quality of Italian pasta, Asian white salted and yellow alkali noodles；

5) Application of Rapid Viscometer RVA Rapid-20 inFlour making and baking: starch gelatinization properties, amylase, maltase, fungal enzyme, preservative, flour heat treatment, wheat gluten quality for cakes, bread, pasta, and noodlesAnd solvent retention testing, etc;

6）Rapid viscosity analyzerRVA Rapid-20applied toBeer brewing: can test barley, dried malt, beer brewing ingredients, and predict the storage period of barley;Barley is the main raw material in the beer brewing industry, and its quality directly affects beer The quality of the product. Therefore, detecting the original quality of barley and monitoring the quality of stored barley Quantitative changes have always been an important research topic in the beer brewing industry. Enzymatic hydrolysis of starch It is crucial for malt production and beer. utilizeRVA can analyze the quality of barley, determine changes in fresh malt, and analyze changes in the saccharification power of barley malt. RVA can also be used to analyze the impact of added enzymes or other additives on malt quality.

7) Rapid viscometer RVA Rapid-20 is applied to Baijiu brewing: the application of rapid viscometer in Baijiu industry can be explored and analyzed by measuring the pasting characteristics of grain starch; Baijiu is a traditional industry in China, which has a significant impact on the development of the national economy. Sorghum, rice, glutinous rice, corn and wheat are the main raw materials for brewing Baijiu. For liquor making, amylopectin has strong water absorption, easy saccharification, high utilization rate and low energy consumption, so grains with high amylopectin content are high-quality raw materials for Baijiu brewing. The application of cereal starch in Baijiu industry can be explored and analyzed by measuring the pasting characteristics of cereal starch with a rapid viscometer;

8) The RVA Rapid-20 rapid viscosity analyzer is applied to study the gelatinization characteristics of dumpling powder; The correlation between the RVA characteristic value and the water holding capacity of glutinous rice flour, freeze-thaw stability, light transmittance of rice dumpling soup, sensory evaluation of rice dumpling and other quality indicators;

9) The RVA Rapid-20 rapid viscosity analyzer was used to analyze the gelatinization characteristics of water chestnut starch, and the effects of pH, sucrose, salt, xanthan gum, and gelatin on the gelatinization properties of water chestnut starch were studied under different starch mass fractions and the same starch mass fraction

4. Rapid Viscometer RVA Rapid-20 Applied to Deep Processing of Beans, Grains, Tubers, and Root and Stem Foods

1) Application of Rapid Viscometer RVA Rapid-20 inCan test wheat, corn, rice, sorghum, potatoes, cassava, etcResearch on breakfast cereals; Corn starch and potato starch are the main sources of starch in many regions. Potato Lake There is a significant difference between flour, grain starch, and tuber starch, with the main feature being potato starch The powder particles are relatively large and have a low gelatinization temperature during the maturation process High peak viscosity The temperature is high, but it easily dilutes at high temperatures. This is because there are natural components on starch molecules Due to its substituent group, it has strong hydration ability. Affected by the commercial production process Damage may reduce its peak viscosity. All of these can be usedRVA is very convenient for measurement. The gelatinization quality of natural starch can be analyzed using ICC method 162 and a 13 minute standard procedure.

2) Application of Rapid Viscometer RVA Rapid-20 in the Study of Measuring the Swelling Rate of Konjac Micropowder Using Rapid Viscometer RVA Rapid-20;

3) Application of Rapid Viscometer RVA Rapid-20 inProtein quality: wheat gluten, skim milk powder, whey protein concentrate, soy protein, etc.

4）Rapid viscosity analyzerRVA Rapid-20applied togelField application research:gelGel properties, gel thickeningfeature,水解特性,Preparation of gel samples. Polysaccharide colloidal food additives for improving food quality Quality plays a very important role. Like gelatin To improve the smoothness of yogurt, xanthan gum, carrageenan Gum, konjac gum, and guar gum can increase flour content The elastic modulus and viscous modulus of the group. Fast application Viscometer can measure the peak of food after adding different colloids Value viscosity, trough viscosity, and final viscosity, thus Further analysis of food products after colloidal addition Characteristics of Quality and Sensory Quality

5) Rapid Viscometer RVA Rapid-20Applied to formula foods研究Seasoning:Rapid viscosity analyzer measurementLow viscosity products (ready to use), such as soy sauce, tomato sauce, seasoning, mayonnaise, soup and other products containing starch, gel&Protein'sLow viscosity food;

6） Rapid viscosity analyzerRVA Rapid-20 applicationprotein、Study on the viscosity characteristics of collagen;

7）Rapid viscosity analyzerRVA Rapid-20applied toIn the candy industry, rapid viscosity meters can be appliedMelting experiments, such as chocolate and pastry candies;'Micro experimental factory'Small scale simulation of production process.

8) Rapid Viscometer RVA Rapid-20applied toRapid viscosity analyzer in the field of puffed foodRVA Rapid-20applied toDevelopment of Grain Amaranthus Squeezed Rice and Crispy Chips；Research on extrusion and puffing of corn starch.RVA has the ability to quickly and quantitatively determine the extrusion curing effect. By using RVA analysis technology, key information about processing can be provided through starch degradation patterns. The processing conditions related to RVA analysis results are a powerful means of directly measuring and understanding changes in the degree of maturation and their impact on the final product.

9) The RVA Rapid-20 Rapid Viscometer is applied in the field of deep processing of seafood and meat products. The Rapid Viscometer can be used forEffect of low moisture potato starch on gel properties of surimiThe effects of low moisture potato starch on surimi gel properties were investigated Research has found that both raw starch and low moisture potato starch can improve fish mince.

10) Application of Rapid Viscometer RVA Rapid-20 in Correlation Analysis between Gelatinization Characteristics and Grinding Degree of Indica Rice RVA, Grinding Degree and Peak Viscosity of Indica Rice Measured by Rapid Viscometer RVAViscosity, attenuation value, and final viscosity show a highly significant positive correlation, and a highly significant negative correlation with the gelatinization temperature of indica rice (p<0.01). RVA gelatinization characteristics may serve as a new quantitative indicator of rice milling degree, which can be used to guide production practice

5. Rapid Viscometer RVA Rapid-20 Applied in the Dairy Industry

1) The application of the Rapid Viscometer RVA Rapid-20 in simulating cheese research. RVA records characteristic value data such as emulsification time, thermal apparent viscosity, and final apparent viscosity during the preparation process of simulated cheese, and conducts correlation statistical analysis on them.

2) Application of Rapid Viscometer RVA Rapid-20 inProduction and solubility experiment of artificial cheese；The RVA rapid viscosity analyzer combined with sensory evaluation was used to study the coagulation effect of gluconic acid lactone (GDL) on milk, and the factors affecting the coagulation of milk by gluconic acid lactone were studied;

3）Rapid viscosity analyzerRVA Rapid-20 applicationThe Influence of Drying Temperature on Powdered Milk Powder；Design heating through a rapid viscosity analyzer-The retention cooling application program tests the gel properties of milk powder and whey powder, discusses the thermal denaturation mechanism of whey protein, and can study the effect of mixing proportion of milk powder with different thermal denaturation degrees on the gel properties and the effect of milk powder with different thermal denaturation degrees on product quality.

4) Application of Rapid Viscometer RVA Rapid-20 inThe aging and thickening of dairy beverages, cream jelly, condensed milk, as well as the production of yogurt, ice cream, and dairy dessertsMicro experimental factory.

6Rapid viscosity analyzerRVA Rapid-20 is applied in the field of feed

One of the main purposes of developing and producing pellet feed or puffed feed in the feed industry is Gelatinize the raw starch. Gelatinization not only improves the rheological processing properties of materials, but also It is important to improve the digestion and absorption efficiency of energy substances in livestock and poultry to a certain extent Fruit and feed conversion efficiency, as well as livestock and poultry production performance. Therefore, starch gelatinization is The important changes in physical and chemical properties during feed processing, and rapid and accurate detection Real time monitoring of changes in starch gelatinization characteristics of raw materials in feed processing to improve feed quality The quality of work and products is of great significance in reducing production costs.

1）based onRapid detection method for predicting the gelatinization degree of feed starch using RVA (Rapid Viscosity Analyzer)The use of a rapid viscometer can predict the percentage of starch gelatinization in feed materials or complete feed

2) The RVA Rapid-20 rapid viscosity analyzer is applied to pellet feed or puffed feed; In depth research on the RVA (Rapid Viscosity Analyzer) gelatinization map library, establishing a correlation between the measured values of feed starch gelatinization degree using classical enzymatic methods, and providing a detection method that can quickly predict the gelatinization degree of feed starch;

3) Application of Rapid Viscometer RVA Rapid-20 inPet food, fish feed, and animal feed.

7. Application of Rapid Viscometer in Chemical Industry

1) Rapid Viscometer RVA Rapid-20Introduction and Application of Adhesive in Calligraphy and Painting Mounting；

2) Rapid viscosity analyzerRVA Rapid-20Applied to gel: gel/thickening characteristics, hydrolysis characteristics, gel sample preparation；

3) Rapid Viscometer RVA Rapid-20applied toProduction of modified starch, processing and production of coatings, slurries, and binders;

4) Rapid Viscometer RVA Rapid-20applied toEthylated starch and cationic starch in the paper or packaging industrywaitLow solid content starch研究；

5）Rapid viscosity analyzerRVA Rapid-20applied toAnalysis of gelatinization properties of high amylose and high amylose hydroxypropyl starch and their application in biodegradable plastics.

three、Rapid viscosity analyzerRVA Rapid-20 Product Parameters

Hardware instrument parameters

1.Sample size:2-3g（Rapid-20），10-15g（Rapid-15）

2. Speed: 100-10000rpm

3. Heating method: Copper block heating

4. Temperature range: 0-150 ℃

5. Heating rate: maximum adjustable 18 ℃/min

6. Viscosity testing range: 10-50000 cp (80 rmp)

7. Cooling rate: 15 ℃/min

8. Tower cap control lifting speed: 5mm/min

11. Analysis results: gelatinization temperature, peak viscosity, maximum viscosity, final viscosity, attenuation degree, and retrogradation value;

12. Reference standards: GB/T24852-2010, GB/T24853-2010, LS/T6101-2020, AACC76-21, AACC22-08, AACC61-02

Software features

1. Data analysis: The software page is adjustable in both Chinese and English, and the operation is simple and easy to get started. There is no need to write separate analysis programs for data analysis. Users can directly check the desired parameters, and the software will automatically calculate the results. The result data and curves can be exportedExcel documents and images;

2. Method library: Comes with a testing method library, which includes specific sample names for testing, preparation methods before sample testing, test parameter settings, experimental curve graphs, and how to analyze results after testing;

3. The software comes with a knowledge base for food properties, rheology, thermodynamics, electricity, etc., and allows for real-time retrieval and analysis of knowledge related to properties; Equipped with national standard algorithms, the software can be directly called;

4. The software comes with experimental reports, including experimental information, experimental parameters, experimental graphs, and experimental results. The experimental report can be exported with one click and cannot be edited. It can achieve experimental traceability

four、Rapid viscosity analyzerRVA Rapid-20 reference standard

American Association of Grain Chemists（AACC and ICC have already approved the standard methods for RVA, which is an industry standard of the Chinese Ministry of Agriculture

1. GB/T 24852-2010: GB/T 24852-2010_Reseed and Rice noodles Determination of Gelatinization Characteristics Rapid Viscometer Method

2. LS/T 6101-2002: "Grain Industry Standard of the People's Republic of China: Determination of Grain Viscosity - Rapid Viscometer Method (LS/T 6101-2002)"

3. AACC Method 61-02: American Association of Grain Chemists (AACC), 1995. Measure the gelatinization characteristics of rice using a rapid viscosity analyzer (RVA). First approval date: 10-26-94. AACC Analytical Methods ", 9th edition, American Association of Grain Chemists, St.Paul，MN。

4. AACC Method 22-08: American Association of Grain Chemists (AACC), 1995. Measure the stirring value using a rapid viscosity analyzer. First approval date: 11-8-95. AACC Analytical Methods ", 9th edition, American Association of Grain Chemists, St.Paul，MN。

5. AACC Method 76-21: American Association of Grain Chemists (AACC), 1997. The general gelatinization method for testing wheat or rye flour using a rapid viscosity analyzer. First approval date: 10-15-97. AACC Analytical Methods ", 9th edition, American Association of Grain Chemists, St.Paul，MN。

6. ICC Standard Method Standard No. 101: International Council for Grain Science and Technology (ICC), 1995. Use a rapid viscosity analyzer to measure the stirring value for evaluating the activity of alpha amylase in grains and flour.

7. ICC standard methodStandard Number162: International Council for Grain Science and Technology (ICC), 1995. Rapid gelatinization method using Newport rapid viscosity analyzer.

8. RACI Statutory Method 05-05: Australian hjChemical Society of China (RACI), 1995. The stirring value method for determining the activity of alpha amylase. First approved in 1994.

9. RACI Statutory Method 06-05: Australian hjChemical Society of China (RACI), 1995. Measure the gelatinization characteristics of rice using a rapid viscosity analyzer. First approved in 1994.

10.GB-T 10361-2008 Determination of Falling Values for Wheat, Rye and Its Flour, Durham and Its Coarse Flour