The instrumental measurement of colour and lycopene in tomato and tomato products

被引：0
|
作者：
Sandei, Luca [1 ]
Pieracci, V. [2 ]
Maselli, A. [3 ]
Visentini, G. [3 ]
Leoni, Carlo [1 ]
机构：
[1] SSICA Parma, Viale F Tanara 31-A, I-43100 Parma, Italy
[2] UNIPR Fac Agr, Corso Laurea Sci & Tecnol Alimentari, Parma, Italy
[3] Maselli Misure SpA, I-43100 Parma, Italy
来源：
PROCEEDINGS OF THE XTH INTERNATIONAL SYMPOSIUM ON THE PROCESSING TOMATO | 2007年 / 758期
关键词：
carotenoids; lycopene; colorimeter; lycopene instrumental measurements;
D O I：
10.17660/ActaHortic.2007.758.13
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The results of some instrumental measurements of colour and lycopene content in tomato 'samples' are presented. The instrument tested is a spectrophotometer/colorimeter of new conception based on diffuse reflectance measurements, proposed by Maselli Misure (mod.LC01); it supplies in a few seconds the lycopene concentration of the sample without (solvent) extraction of the pigment and without particular laboratory skilfulness and also. the traditional L, a, b, and a/b values. Several samples (15 fresh crushed tomatoes, 75 diced tomatoes and 140 tomato juices at different levels of concentration) were analyzed with this instrument and the results compared with lycopene content found with conventional HPLC analysis measured in the SSICA laboratory (Sandei et al., 2002); moreover, colour data coming from the spectro-colorimeter Hunterlab Labscan XE (colorimeter used as reference for the SSICA laboratory colour measurement) were compared with Maselli LC01 colour data.
引用
收藏
页码：129 / +
页数：3
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