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Quantitative Change of Carbohydrate Content of Two Varieties of Jerusalem Artichoke Tubers ( Helianthus tuberosus L.) During Cold Storage Conditions (4°C)
Author(s) -
Ben Chekroun M.,
Amzile J.,
Mokhtari A.,
El Haloui N. E.,
Prevost J.
Publication year - 1997
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1997.tb00509.x
Subject(s) - jerusalem artichoke , helianthus , fructose , cold storage , horticulture , fructan , carbohydrate , botany , biology , chemistry , food science , sunflower , biochemistry
The Jerusalem artichoke ( Helianthus tuberosus L.) represents an interesting source of carbohydrate because of its high fructose content (75% of total carbohydrates). An experiment on storage of two varieties of the Jerusalem artichoke tubers (‘Kharkov’ and ‘Violet de Rennes’) showed that the quality of tubers was preserved during the first 7 weeks of cold storage. Beyond this period, the loss in total carbohydrate content was evaluated at 0.19% for the ‘Kharkov’ and 0.26% for the ‘Violet de Rennes’ variety of the fresh matter/week. Between the seventh and the thirteenth week of cold storage the tubers lost about 16.7% and 19.1%, respectively, of their initial carbohydrates. From this study we came to the conclusion that storage at 4°C for the two varieties (‘Kharkov’ and ‘Violet de Rennes’) beyond 7 weeks would cause a decrease of general reserves in tubers.