A RAPID-DETERMINATION OF THE TOTAL SUGAR CONTENT AND THE AVERAGE INULIN CHAIN-LENGTH IN ROOTS OF CHICORY (CICHORIUM-INTYBUS L)

Citation
C. Vanwaes et al., A RAPID-DETERMINATION OF THE TOTAL SUGAR CONTENT AND THE AVERAGE INULIN CHAIN-LENGTH IN ROOTS OF CHICORY (CICHORIUM-INTYBUS L), Journal of the Science of Food and Agriculture, 76(1), 1998, pp. 107-110
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Agriculture,"Food Science & Tenology","Chemistry Applied
ISSN journal
0022-5142
Volume
76
Issue
1
Year of publication
1998
Pages
107 - 110
Database
ISI
SICI code
0022-5142(1998)76:1<107:AROTTS>2.0.ZU;2-M
Abstract
A method is proposed to the chicory breeder for the fast screening of total sugar content and average inulin chain length of lots of chicory roots. The determination of the refractive index of the chicory root juice by refractometer is the first step. This rapid analysis gives a good estimation of the total sugar content (r = 0.85; RSD = 3.8%). In the next step extracts of chicory roots with a high total sugar conten t are hydrolysed and analysed by chromatography. The calculated fructo se/glucose ratio predicts the average inulin chain length well (r = 0. 91; RSD = 5.3%). The molecular weight distribution of the inulin was a nalysed by anion exchange HPLC with pulsed amperometric detection. (C) 1998 SCI.