Measurement of tomato firmness by using a non-destructive mechanical sensor

被引:44
作者
Lesage, P [1 ]
Destain, MF [1 ]
机构
[1] FAC SCI AGRON ETAT GEMBLOUX,LAB MECAN AGRICOLE,B-5030 GEMBLOUX,BELGIUM
关键词
tomatoes; firmness; non-destructive measurement method;
D O I
10.1016/0925-5214(95)00057-7
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A non-destructive mechanical sensor (Cantifruit) was designed to measure the firmness of tomatoes. It consists of a small plunger constrained to penetrate slightly into the fruits, by using an accurate lever mechanism. A highly significant correlation exists between firmness measurements performed with this device and the Stable Micro System (SMS), fitted with the same plunger diameter. Using the Cantifruit, data related to firmness variability and changes are easily obtained. The firmness of a tomato varies about 12% around its circumference. In a single lot of tomatoes picked at the same time, the variability may exceed 25%. If the tomatoes are stored at 4-5 degrees C and 92-99% relative humidity (RH), their firmness decreases by about 20% over ten days.
引用
收藏
页码:45 / 55
页数:11
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