In the season of apple harvest, the big and red apples are everywhere, which is very attractive. Apple has been loved by people for its crisp and juicy taste. However, after harvest, the texture of apple will change constantly, and the internal organization will gradually become soft. When it is serious, it will greatly reduce the value of food. Therefore, the texture analyzer is used to treat apples. It is important to evaluate the texture of the flesh. The evaluation results of the texture analyzer are more precise and scientific than the results of human evaluation, and the content is more abundant.
Paulson brings you a study on the changes in postharvest texture of apples using the TPA test to compare the pulp properties of different varieties of apples.

Experimental Materials
Red Fuji and Gala Apple. Each apple is provided with a refrigerating group and a shelf group. The apples in the refrigerated group are placed at 0~5°C and stored under the condition of 90% relative humidity for 6 weeks. The apples in the shelf group are placed at 19±1°C, and the relative humidity is 65%. Store in the maintenance box for 4 weeks. During storage, 10 fruits were taken each week to determine their texture parameters.

Experimental parameters
Sample treatment: The fruit stalk cut the apple into two lobes, and the four corners of the apple were sampled using a 14 mm punch, and the centered portion was cut with a double knife having a slit width of 4.5 mm as a sample.
Texture Analyzer: TA.TOUCH
Probe: TA/50
Test mode: TPA pauses for 5 seconds between compressions
Trigger type: deformation 60%
Trigger force value: 0.1N
Speed ​​before test: 1.00mm/s, speed during test: 0.5mm/s, speed after test: 1.00mm/s

The result is shown

The results were analyzed. The brittleness, adhesion, cohesiveness and recovery of Red Fuji did not change much with time. The brittleness, adhesion, cohesiveness, chewiness and recovery of the pull were all followed. The time decline is more obvious. This result is consistent with the results of human senses. Gala apples are more susceptible to softer than Red Fuji apples. This conclusion can be seen that the texture analyzer has good practicability in distinguishing different apple textures.

The TA.TOUCH texture analyzer independently developed by Shanghai Baosheng is a touch-type texture analyzer equipped with high-definition precision display. It can be operated by tapping the screen without external computer. Built-in computing software, the result is directly displayed, support Data export and encryption, can be viewed using office software; the measurement mode is autonomous, the fixed parameters can be used to achieve the specificity test, and can be adjusted at any time according to the needs, a multi-purpose machine. Single test, multiple test, down hold test, full texture test, etc.

Shanghai Baosheng, domestic * texture instrument brand

The operation is simple, the results are accurate, and the price is favorable, which is very suitable for the basic teaching and enterprise research and development of the school.
If you want to know more about the texture analyzer please: Shanghai Baosheng Industrial Development Co., Ltd.

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