Study on Method for Fast Measuring Lycopene Content in Tomato

doi:10.3321/j.issn:1000-7091.2006.02.004

Abstract

Abstract: Fifty-eight tomato genotypes with different lycopene content were used to study the relationship between their lycopene content and color readings of CR400.Experimental results showed that L1,a1 and b1 from fruits were randomly distributed among genotypes.But lycopene content was negatively correlated with L2 and b2 of fruit puree respectively and positively correlated with a2.After free water in fruit puree was discarded by centrifugation,readings of L3,a3 and b3 from these pastes were more stable and displayed a more precise linear relationship to lycopene content.Free water imposed a significant effect on color readings.Among genotypes with free water content between 71.11% and 76.20%,the correlation coefficient between lycopene content and (a3/b3+a3/L3) was as high as 0.808.Therefore,linear regression equation could be used to predict lycopene content of fruits based on their color readings from paste without free water.

Key words: Tomato, Lycopene, Measure method

CLC Number:

S641.201

LIU Zhong-qi, XUE Jun, JIN Feng-mei, JIA Yan-hong. Study on Method for Fast Measuring Lycopene Content in Tomato[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(2): 13-17. doi: 10.3321/j.issn:1000-7091.2006.02.004.

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