|
KMID : 0903519930360040304
|
|
Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1993 Volume.36 No. 4 p.304 ~ p.309
|
|
|
Changes in soluble neutral carbohydrates composition of Jerusalem artichoke(Helianthus tuberosus L .) tubers according to harvest date and storage temperature
|
|
|
|
|
Abstract
|
|
|
|
The composition of soluble neutral carbohydrates in Jerusalem artichoke tubers was measured and compared according to harvest dates and storage temperatures using HPLC. The breakdown of inulin (≥GF8) into sucrose and fructo-oligosaccharides (GF2-GF7) was highest on November just after cold-shock. The composition of sucrose and fructo-oligosaccharides on March was much higher than that on September of previous year. Inulin (≥GFB) proportion decreased from 66.4% to 33.1% but the proportion of fructo-oligosaccharides (GF2-GF7) and sucrose increased from 25% to 61% and from 3.4% to 13.6%. respectively. The storage at a low temperature (4℃) for 34 days increased the composition as well. However, the amount of fructo-oligosaccharides was decreased when the tubers harvested in March were stored at high temperature (25∼40℃). For the maximum yield of fructo-oligosaccharides in jerusalem artichoke, it is concluded that the tubers be harvested in March and/or stored at the low temperature.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|