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THE DISTRIBUTION OF FRUCTANS IN ONIONS
Author(s) -
DARBYSHIRE B.,
HENRY R. J.
Publication year - 1978
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1978.tb01600.x
Subject(s) - fructan , sucrose , fructose , bulb , chemistry , carbohydrate , degree of polymerization , food science , botany , degree (music) , biology , biochemistry , polymerization , organic chemistry , polymer , physics , acoustics
SUMMARY The non‐structural carbohydrate content of individual leaf bases of onion bulbs was determined, and confirmed the presence of glucose, fructose, sucrose and a series of fructans as the only components. The fructans decreased in concentration with increasing molecular weight and those with a DP (degree of polymerization) of up to 10 were estimated. Total fructan concentration decreased from the youngest to the oldest leaf bases of the bulb, while fructose levels increased and glucose and sucrose levels tended to remain constant.