Method for rapidly screening raw material used to make rice product
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A technology for processing raw materials and screening methods. It is used in material inspection products, complex mathematical operations, predictions, etc., and can solve problems such as unclearness and imperfect rice product evaluation system.
Active Publication Date: 2017-12-12
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +2
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Now there are some deficiencies in this evaluation method. First, there are many physical and chemical indicators of rice raw materials, and there is a certain correlation between each indicator. It is not clear which indicators play a key role in the quality of rice products. Second, the rice product evaluation system The establishment of the system is not perfect, and most of them determine the quality of rice products according to the total score of sensory evaluation; third, the current method can only judge the suitability of rice raw materials for processing a certain type of rice products
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Embodiment 1
[0062] A method for quickly screening raw materials for processing rice products, specifically comprising the following steps:
[0063] S1: Collect representative rice samples, see Table 1 for relevant sample information.
[0064] Table 1 Number and name of rice varieties
[0065]
[0066]
[0067] S2: Measuring the physical and chemical indicators of different varieties of rice raw materials; including measuring the moisture, protein and amylose content of raw rice by using a grain near-infrared analyzer; measuring the taste value by using a taste meter; measuring the gelatinization characteristics and obtaining the gelatinization temperature , peak viscosity, disintegration value, minimum viscosity, retrogradation value, final viscosity and other pasting characteristic parameters; the data are shown in Table 2.
[0068] Table 2 Basic statistical data of physical and chemical properties of 88 rice samples
[0069]
[0070] S3: Different varieties of rice raw materi...
Embodiment 2
[0100] According to the same steps of Example 1, the comprehensive evaluation values of fresh wet rice noodles, rice cakes and glutinous rice balls of 88 different rice samples were obtained, and the statistics of the data are shown in Table 7.
[0101] Table 7 Statistics of comprehensive evaluation values of processed rice products of different varieties of rice
[0102]
[0103] The mathematical model between the comprehensive evaluation value and raw material characteristics of fresh wet rice noodles, rice cakes and glutinous rice balls was obtained by stepwise regression analysis,
[0104] Fresh wet rice noodles:
[0105] (Eq.2)
[0106] where x 1 is the amylose content, x 2 is the gelatinization temperature.
[0107] Rice cake:
[0108] (Eq.3)
[0109] where x 1 is the amylose content,; x 2 is the peak time, x 3 is the gelatinization temperature.
[0110] sweet dumpling:
[0111] (Eq.4)
[0112] where x 1 is the moisture content; x 2 is the amy...
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Abstract
The present invention discloses a method for rapidly screening a raw material used to make a rice product. The method comprises the following steps: (1) collecting a representative rice sample; (2) determining physical and chemical indicators of different varieties of rice raw materials; (3) processing the different varieties of rice raw materials into rice products; (4) for a feature of each variety of rice products, establishing a multi-level evaluation indicator factor set of quality of rice products, and obtaining a weight of each evaluation indicator by analytic hierarchy process; (5) determining a degree of membership of each evaluation factor and constructing a fuzzy evaluation matrix; (6) by adopting a fuzzy matrix compound operation, obtaining a fuzzy comprehensive evaluation value; (7) by regression analysis, obtaining a mathematical model between a comprehensive evaluation value of rice products and a characteristic of raw materials; and (8) by using the mathematical model, predicting suitability of the different varieties of rice raw materials for being processed into rice products. By adoption of the method disclosed by the present invention, the suitability of the different varieties of raw materials for being processed into rice products can be calculated quantitatively, so as to support scientific utilization of raw materials.
Description
technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for rapidly screening rice product processing raw materials. Background technique [0002] Rice products are processed products made of rice and brown rice as the main raw materials, mainly including rice noodles, glutinous rice balls, rice dumplings, rice cakes, instant rice, rice puffed food, rice fermented food and derivative products (if glucose syrup, resistant starch, MSG, etc.). Appropriate raw material varieties are the material basis for producing high-quality rice products. my country is rich in rice variety resources, and there are tens of thousands of rice germplasm resources. The quality of various varieties of rice may vary greatly, and the composition and physical and chemical properties of different varieties of rice are closely related to the quality of rice products. Processing different types of rice products has different require...
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