Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 317111
Title Ultratraces of carotenes in tomato purees : HPLC-TLS study
Author(s) Luterotti, S.; Markovic, K.; Franko, M.; Bicanic, D.D.; Vahcic, N.; Doka, O.
Source Review of Scientific Instruments 74 (2003)1. - ISSN 0034-6748 - p. 684 - 686.
DOI https://doi.org/10.1063/1.1512773
Department(s) Biophysics
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) performance liquid-chromatography - thermal lens detection - trans-beta-carotene - ultrasensitive determination - lycopene - isomers - oxygen
Abstract The present study was designed to provide information about (i) the profile of carotene pigments and (ii) trace quantities of lycopene and -carotene left in tomato purées. The ultrasensitive method comprising HPLC and thermal lens spectrometric (TLS) detection enabled us to detect as low as 0.3 and 1.1 ng ml¿1 lycopene and -carotene in purée extracts, respectively. Total concentration of -carotene and lycopene (varying from 3 to 170 ng g¿1) in the examined tomato purées may serve as an indicator of the carotene-specific antioxidative capacity of these products. Although conventional spectrophotometry can be used to rapidly assess the quality of products derived from tomatoes, a highly sensitive and selective method such as HPLC-TLS is needed for reliable analyses of samples such as, for example, those subjected to inappropriate storage and/or handling
Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.