Correlation between Fructan Exohydrolase Activity and the Quality of Helianthus tuberosus L. Tubers

Jerusalem artichoke tubers have diverse applications in the food industry as well as in biotechnology. Their suitability depends mostly on the inulin content. Seasonal fluctuations of fructan exohydrolase activity responsible for inulin degradation was investigated in the tubers of three Jerusalem a...

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Bibliographic Details
Published in:Agronomy (Basel) 2018-09, Vol.8 (9), p.184
Main Authors: Krivorotova, Tatjana, Sereikaite, Jolanta
Format: Article
Language:English
Subjects:
Autumn
Biodiesel fuels
Biotechnology
Carbohydrates
Cultivars
Degree of polymerization
Enzymes
Food
Food industry
Food processing industry
fructan exohydrolase activity
Fructooligosaccharides
Glucose
Helianthus tuberosus
Inulin
Jerusalem artichoke
Polymerization
Prebiotics
Raw materials
seasonal fluctuations
Seasonal variations
Sucrose
Tubers
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Summary:Jerusalem artichoke tubers have diverse applications in the food industry as well as in biotechnology. Their suitability depends mostly on the inulin content. Seasonal fluctuations of fructan exohydrolase activity responsible for inulin degradation was investigated in the tubers of three Jerusalem artichoke cultivars. The changes of fructan exohydrolase activity positively correlated with the changes of the content of total and short fructooligosaccharides. Therefore, to extract inulin with higher degree of polymerization for biotechnological purposes, the tubers of Jerusalem artichoke should be uprooted in autumn before the level of fructan exohydrolase reaches its maximum. If short fructooligosaccharides are desirable, the tubers in late autumn or spring tubers overwintered in soil are suitable.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy8090184