14results about "Testing starch susbtances" patented technology

To provide a digestibility determination system capable of numerically evaluating digestibility in relatively short time without requiring a complicated operation.SOLUTION: A digestibility determination system comprises: immersion means for immersing raw rice into at least gelatinizing solution; imaging means for imaging an image of the raw rice immersed into gelatinizing solution at predetermined imaging timing; image data acquiring means 11 for acquiring image data imaged by the imaging means; index value calculating means 15 for calculating an index value in order to determine rice digestibility based on the image data; and digestibility determination means 16 for determining rice digestibility on the basis of the index value calculated by the index value calculating means 15 and correlation between a predetermined index value and digestibility, where the index value calculating means 15 calculates information on a first region made up of a region corresponding to the raw rice and a region occupied by a component eluted from the raw rice or information on a second region made up of only a region occupied by components eluted from the raw rice, which are obtained by analyzing image data at predetermined imaging timing, as an index value.SELECTED DRAWING: Figure 2

The application provides a rice product raw material quality prediction device and application, and relates to the technical field of food quality detection and control. The method first divides rice product raw materials into several groups according to weight, extracts equal-weight raw materials from each group as detection samples, and uses a Japanese Sakuradake particle evaluator to detect cracks, yellowing and insect-damaged particles in the samples and weigh them. At the same time, the samples are ground into three equal parts, and the Kjeldahl method, oven drying method and iodine colorimetric method are used to determine the contents of protein, moisture and amylose in the samples, respectively. The infrared spectroscopy imaging technology is used to record the absorbance of the samples at a specific waveband, and a prediction model of the contents of protein, moisture and amylose is established based on the partial least squares method. According to different evaluation standards, the limitations of traditional single-index detection are avoided, and the stable high quality of products in terms of taste, nutritional value, appearance and shelf life is ensured.

This invention relates to the field of flour testing technology and discloses a flour fineness testing device, comprising: support legs and a mounting base fixedly installed above them; a spring vibration frame is arranged above the mounting base; a standard sieve is arranged inside the spring vibration frame; a drive shaft is arranged outside the standard sieve and passes through the standard sieve; a deflection block is fixedly installed outside the drive shaft; and a ring band is fixedly installed outside the standard sieve. The device is characterized by further comprising: a cover body and a testing unit arranged on the inner wall of the cover body and on the outer side of the standard sieve for fineness testing. The flour fineness testing device of this invention uses a rotating mounting plate to drive a fixed plate, an inclined plate, and a rotating rod. The inclined plate gradually slides along the upper surface of the weighing sieve layer, and the rotating rod wipes away the portion of the sieve that is blocked inside and extends above the sieve holes, improving cleanliness and enhancing testing accuracy.

This invention discloses a method for screening and modifying starch materials to construct a low-GI baking system, belonging to the field of starch material modification technology. The method includes determining the basic physicochemical properties of various initial starches and conducting in vitro digestion simulation experiments. Based on the obtained digestion rate curves, the glycemic index is calculated to screen candidate starches with low-GI potential. Subsequently, the candidate starches undergo physical field-assisted composite modification treatment, i.e., periodic high-intensity mechanical extrusion is applied in a specific humidity environment to form modified intermediates, followed by annealing and aging treatments to obtain the final product. This method achieves precise screening through dynamic digestion characteristics and utilizes the synergistic effect of moist heat and mechanical force to deeply reconstruct the starch structure, effectively preparing modified starch materials with stable and excellent anti-digestion properties, providing a key raw material solution for the development of low-GI baking products.

The application discloses a method for identifying and evaluating the origin and quality of red-ear sorghum, comprising the following steps: S1, collecting a red-ear sorghum sample to be tested; S2, determining the physicochemical indexes, volatile flavor component spectrum and non-target metabolite spectrum of the sample to obtain multi-dimensional quality data; and S3, comparing and analyzing the multi-dimensional quality data obtained in the step S2 with a standard quality database of red-ear sorghum from different origins to determine the origin and / or quality characteristics of the sample to be tested. It is found that the samples from the core production area in Guizhou are characterized by high tannin content, enrichment of flavonoids and tannin secondary metabolites; the samples from the surrounding production areas in Guizhou are characterized by high starch content, high protein content and active amino acid metabolism; and the samples from the production areas outside Guizhou are characterized by high thousand-grain weight, high ester flavor substances (especially methyl hexanoate) and enrichment of lipid oxidation products.

The present invention relates to an ELISA-based, liquid-phase immunoassay apparatus optimized for detecting particular ingredients contained in a biological sample, etc., and a method therefor.

The application discloses pig compound nutritional feed and a preparation method thereof, and relates to the technical field of animal nutrition and feed processing, and comprises detecting the phytic acid phosphorus content and non-starch polysaccharide content of batch raw materials of grain energy raw materials, wheat germ, distiller's grains and wheat bran; according to the detection results, the formula parameters and enzyme distribution parameters of the batch are determined, wherein: the replacement ratio of corn with wheat and / or broken rice is determined; the addition amount of one or more of L-lysine sulfate, DL-methionine, L-threonine and L-tryptophan is determined; and the distribution ratio of phytase preparation and non-starch polysaccharide degrading enzyme preparation between pre-granulation addition and post-granulation spraying is determined. The degradation efficiency of phytic acid phosphorus and non-starch polysaccharide is improved, the adaptability of the feed to different batches of raw materials is enhanced, and the influence of high temperature and mechanical action on enzyme activity in the granulation process is reduced.

The invention relates to a device (1) for analysing a heterogeneous sample (S), the device (1) comprising a measurement module (100) having a reservoir (110) configured to accommodate the sample (S), a first infrared spectroscopy subassembly (120) and a second, fluorescence spectroscopy subassembly (130). The first subassembly comprises a diffusing optical element (140) which is positioned so as to allow the implementation of reliable infrared spectroscopy measurements with a high precision without degrading the fluorescence spectroscopy measurements which take place on the same sample. The device further comprises a processing module (200) connected to the measurement module (100) by a communication network (300) and comprising a processor (220) configured to analyse the data obtained by infrared spectroscopy and fluorescence spectroscopy.

The present application relates to the technical field of grain processing, and particularly relates to a grain processing quality monitoring method based on multiple sensors, which comprises the following steps: whiteness monitoring; abnormality index calculation; abnormality type positioning; and sensitivity feedback. Through multiple sensor cooperative monitoring and statistical analysis, the present application realizes accurate identification and attribution of rice processing quality abnormalities. By further introducing parameters such as equipment vibration, object distance drift and particle count deviation rate, and combining historical data benchmarks for standardized processing, the abnormality determination is more robust, and the true process quality fluctuation caused by equipment vibration and rice grain stacking can be effectively distinguished from the measurement distortion, thereby avoiding false alarms caused by sensor interference. Through statistical observation of the occurrence frequency of various abnormalities within an observation period, the tolerance of the whiteness threshold value is dynamically adjusted, and the problem of low accuracy of abnormality cause tracing and slow response speed caused by the relative independence of various detection data is effectively solved.

This utility model discloses a grain collector for rice appearance inspection, comprising an absorber that uses suction to collect rice. The absorber has a shell, inside which are a fan assembly, a filter assembly, a collection assembly, and a suction nozzle assembly. The collection assembly includes a collection box, within which a collection tube is formed, with its inner diameter gradually decreasing from bottom to top. An air inlet is formed on the collection box to cooperate with the filter assembly. This utility model utilizes the cooperation of the collection tube and the air inlet to allow the rice to move upward from the bottom of the collection box along the collection tube under suction. As the inner diameter of the collection tube decreases, the rice falls directly to the bottom of the collection box after flowing out of the collection tube, thus collecting the rice in the collection box, facilitating rice collection after appearance inspection.