期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 65, 期 50, 页码 11073-11084出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.7b04149
关键词
Brassica napus; seed; storage conditions; glucosinolates; virgin rapeseed oil; sensory quality
资金
- German Federation of Industrial Research Associations (AiF) within the program for promoting the IGF of the German Ministry of Economics and Energy (BMWi) [AiF 18039N]
Virgin rapeseed (Brassica napus) oil is a valuable niche product, if delivered with a high quality. In this study, the effects of moist storage of B. napus seeds for 1 to 4 days on the seed metabolome and the chemo-sensory properties of the produced oils were determined. The concentrations of several primary metabolites, including monosaccharides and acids, rapidly increased in the seeds, probably indicating the breakdown of storage compounds to support seed germination. Seed concentrations of indole glucosinolates increased with a slight time offset suggesting that amino acids may be used to modify secondary metabolism. The volatile profiles of the oils were pronouncedly influenced by moist seed storage, with the sensory quality of the oils decreasing. This study provides a direct time-resolved link between seed metabolism under moist conditions and the quality of the resulting oils, thereby emphasizing the crucial role of dry seed storage in ensuring high oil quality.
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