JP2007155692A - Method for displaying ultrasonic quality evaluation of fisheries (especially quality of tuna), and display-related system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for nondestructively displaying quality-indicating commodities by reference standard values, instead of a quality indicating method, indicating the quality of foods, such as tuna and farmed fish, by region indications and determination indications on frozen and fresh fish. <P>SOLUTION: Specimens such as tuna are measured nondestructively, to acquire numerical values on bulk moduli of elasticity, acoustic impedances, attenuation coefficients, and Doppler shift frequencies for the ultrasonic tomograms and ultrasonic tissue characteristics values by an ultrasonic inspection device to be scientific for circulation processes; and it is possible to evaluate and indicate the quality, taking into consideration the data and use this as reference standard values that are scientific and stable, with respect to the conventional standard values at the national level. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  This invention measures the acoustic tissue characteristic values of food ingredients such as tuna and farmed fish and changes in the characteristic values (fat riding condition, maturity, and growth process of cultured fish) with an ultrasonic device having a bandwidth of 1 MHz to 100 MHz. The quality of the data is displayed with ultrasonic images and acoustic values. The data is stored and utilized by a real-time information sharing system using an information communication network such as the Internet.

Since the quality of ingredients such as tuna and cultured fish is determined based on personal experience and feeling, the quality determination in FIG. To compensate for that risk, the average bid price is kept low. In addition, the final quality cannot be judged unless the tuna is disassembled and the cultured fish is collected and dissected (destructive inspection), and standards and standardization are difficult at the time of auction, and quality indication has not been established. In the aquaculture process, it is not possible to track the same individual, and the evaluated quality is generally judged by experience and feeling, and consumers can not confirm the quality until they eat it, so the tendency to avoid consumption especially when information is insufficient There is. It is required to build a standardized distribution from production to supply by displaying quality evaluation non-destructively with scientific data.
Method and system for classification of breast affected areas Meat quality estimation method by near infrared spectroscopy and its application Ultrasound update Clinical Radiation Special Issue Kanahara Publishing Yukio Miyamoto Shinpei Tada Matsukawa flounder early sex determination Fishers. Science. 65.1999 Takahiro Matsubara, Hokkaido Fisheries Research Institute

  Using ultrasonic inspection equipment, non-destructively assess the quality of freshness and fat riding conditions of marine products such as tuna, and rearing management such as the degree of health and growth of cultured fish while alive in the aquarium The first task is to improve quality accuracy by standardizing ultrasonic tomographic images and ultrasonic tissue characteristic values, standardizing the quality display, and providing it to consumers. Second, quality is achieved by sharing data using information communication networks. The goal is to build a standardized reasonable price by improving display accuracy and improving quality control technology.

  In order to solve the above-mentioned problems, the quality display standardized by first collecting and analyzing the ultrasonic tissue characteristic value figure 2 as scientific data, using ultrasonic examination technology as an aid to the connoisseur's conscientiousness. To be obtained. The labor force (data collection) at this time should be of a level that cuts off the tail of the tuna and accumulates in the host computer according to the number of specimens processed to improve accuracy. In the aquaculture process, growth-related data is collected with an ultrasonic device that is killed and the production individual does not decline by inspection, etc., and the growth information in the growth process is collected and analyzed alive to reduce losses such as killing for inspection Establish an inspection system that can be prevented and repeated to increase aquaculture efficiency. Secondly, the image data obtained and the image data and ultrasonic tissue measurement values are immediately input, analyzed and stored in the host computer. Third, these data are shared by all people, and data at each point in time is further input and utilized. We will improve the technical level by directly exchanging information in the fields of production, distribution, research, and consumption, and provide food with reliable information. An information sharing system that allows all people to exchange information, such as immediate exchange of information between producers and consumers via a communication network, improves quality display accuracy, improves quality control technology, and standardizes Build the price.

  Since quality can be evaluated non-destructively on expensive ingredients such as tuna, the quality maintenance time can be extended. In addition, the display method that anyone can evaluate can prevent quality degradation. This leads to a convincing provision by scientific standard display and the construction of consumption, and since the loss is small, the price can be set low as a result. In aquaculture, since the inspection can be determined without killing, the same individual can be traced, so the accuracy of the individual tracking data can be increased, and the aquaculture efficiency can be increased. Since judgments based on scientific data are accumulated, standardized information sharing in the fields of distribution, research, and consumption is possible. Since these quality indication data are shared from producers to consumers, optimal manufacturing, distribution, storage and consumption technologies are established, leading to the development of these fields. Moreover, there is a possibility that such information is applied to other fields.

  One embodiment of the present invention is shown in FIG. Specimen a (here, tuna) The most important detector is the ultrasonic device b. The specimen a yellowfin tuna is determined in FIG. 1 with a maximum thickness of 6 cm in the ultrasonic frequency band of 10 MHz, and the back side from the head along the side line. Scanning over the tail, collecting acoustic tissue characteristic values and ultrasonic tomographic images, inputting data to the host computer, displaying a one-section ultrasonic tomogram 2 of this data on the specimen and subjecting it to auction. In this time, it was lifted up within 24 hours without getting burned and the fat was put on moderately, and the quality was close to the living state (not matured), and the ultrasonic tomogram is also consistent with the fillet cross-section macroscopic evaluation. The intermediate trader who has bid off inputs the data items of the photograph 3 of the cut surface of tuna and the storage method e into the host computer c. c is connected to the producer d, the middle trader e, the consumer f, and the research institution g through a communication network such as the Internet, and real-time information sharing is performed by all people. Real-time information sharing enables comparison with past data. The data allows intermediate contractors to index storage and processing methods up to distribution. Consumers can find the best way to eat with reference to the data. Research institutes proceed with research based on their data. The producers are fed back those data to improve production technology.

"Effect of the embodiment"
According to this embodiment, since the quality display based on scientific data is added to the evaluation of only the connoisseur's conscientiousness, it is possible to provide the standard display of the quality. Since information sharing such as wide-area quality control can be performed in real time using an information communication network, data analysis can be performed immediately, and an appropriate response from production to consumption can be established, contributing to economic development in this field. Since it is given to the establishment of a new quality control method, high quality products can be provided to consumers by the method of quality display. Production technology improves with reference to consumer evaluation data. Since all data can be analyzed in series, research in research institutions progresses and production technology further increases. As a result, higher quality products can be provided and demand is expanded.

Fishermen who are producers of yellowfin tuna at the time of bidding are shipped after removing the traps and built-in components without damaging their qualities in order to suppress the decline in freshness. However, a cut is made at the tail for quality judgment, resulting in quality degradation. The ultrasound tomogram on the dorsal side of yellowfin tuna reflects the cellular structure of the body in the ultrasound tissue tomogram at a frequency of 10 MHz. A cross-sectional macroscopic photograph of yellowfin tuna that matches the ultrasonic tomographic image can be seen with the same cell structure as the ultrasonic image Features and advantages of conventional distribution and comparative configuration diagram according to the present invention

Explanation of symbols

a Ultrasonic device b Specimen (in this case tuna) c Host computer d Producer (fisherman in this case) e Intermediate trader (competitor, transporter) f Consumer g Researcher h Quality data I Final label j Product

Claims (4)

A method for nondestructively inspecting fresh fish such as tuna (unfrozen food and farmed fish in the near sea) using ultrasonic images and tissue acoustic characteristic values with an ultrasonic device having a central frequency band of 1 MHz to 100 MHz. The greatest advantage of observing the ultrasonic tomographic image in a living tissue that is not frozen or in a live state is that tuna has stopped ripening in an ice hot water tank, and cultured fish lived in the water tank. A method to judge quality. The acoustic numerical value using the acoustic velocity and reflectance of the tissue, which is the acoustic characteristic value, only for the ultrasonic characteristic image such as the ultrasonic anatomical image of the data obtained in claims 1 and 2, in particular. Is a display method, or a method of analyzing this and displaying organizational organization or organizational change. Specifically, the quality is determined by numerical values such as the degree of change in quality due to the change in volume modulus, the texture and taste of fat according to the volume ratio of acoustic impedance, the amount of muscle, etc., and the Doppler ultrasonic transition characteristic value. Providing information such as the time display when the information was obtained, and the display and storage method corresponding to that time. Using the information obtained in claims 1, 2, and 3 above