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Changes in Tocochromanol Content in Seeds of Brassica napus L. During Adverse Conditions of Storage
Author(s) -
GawrysiakWitulska Marzena,
Siger Aleksander,
Wawrzyniak Jolanta,
NogalaKalucka Malgorzata
Publication year - 2011
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-011-1793-0
Subject(s) - rapeseed , brassica , water content , moisture , horticulture , chemistry , food science , drop (telecommunication) , agronomy , botany , biology , organic chemistry , telecommunications , geotechnical engineering , computer science , engineering
Tocopherols and plastochromanol‐8 were evaluated in seeds of Brassica napus L. during adverse conditions of storage at different temperatures (25 and 30 °C) and moisture levels (10, 12.5 and 15.5%). Both temperature and moisture content of seeds had a significant effect on the hydrolysis of triacylglycerols in rapeseed oil and on the contents of tocopherols and PC‐8. The biggest losses of tocopherols (a drop by 14.4% after 18 days) were recorded for seeds with a moisture content of 15.5% and stored at a temperature of 30 °C. Losses of the α‐T homologue were bigger than those of γ‐T. The loss of PC‐8 ranged from 4 to 24% depending on storage conditions and it was almost two times bigger than the loss of tocopherols.