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Shelf‐Life and Quality Changes in Summer Storage Onions (Allium cepa)
Author(s) -
HURST W. C.,
SHEWFELT R. L.,
SCHULER G. A.
Publication year - 1985
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1985.tb13791.x
Subject(s) - pungency , allium , sprouting , cultivar , horticulture , sugar , chemistry , shelf life , botany , food science , biology , pepper
Jumbo and medium sized summer onions (Allium cepa) of three cultivars were stored at 1, 4, 21°C for 6 months. Medium yellow onions held best at 1°C; jumbo sizes showed lowest losses at 4 and 21°C. Highest losses occurred in white onions. Major losses were due to decay. Sprouting occurred after 3 months at 4°C; none was observed at 1°C. Pungency increased and sugar decreased at 4 and 21°C; onions remained dormant at 1°C. Changes in quality parameters were factors of size and cultivar and may influence sprouting and decay over storage. Weight loss was an index to onion size change. Sprouting increased on reconditioning onions. Medium yellow Grano onions stored best on transfer to higher temperatures.