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The Effect of Cold Storage on Some Enzyme Activities in Tulip Bulbs
Author(s) -
HAALAND ELLEN
Publication year - 1974
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1974.tb03666.x
Subject(s) - sucrose , chemistry , enzyme , invertase , cultivar , amylase , enzyme assay , horticulture , food science , biochemistry , biology
The activities of α‐amylase, α‐glucan‐phosphorylase, and β‐fructofuranosidases were measured in an extract of soluble proteins of tulip bulbs of the cultivars “Apeldoorn” and “Paul Richter” stored for 2, 4, 6, 8, 10, and 12 weeks at 5°C. The enzyme activities increased during the first 4–6 weeks and then remained approximately constant during further storage at 5°C. 14 C‐fructosyl‐sucrose oligosaccharides were identified after injection (into bulbs) of O 14 C‐U‐sucrose, thus showing fructosyl transferase activity.