期刊
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
卷 16, 期 2, 页码 111-119出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0889-1575(02)00172-2
关键词
Urtica dioica L.; stinging nettle; carotenoids; beta-carotene; lutein; lycopene; fatty acid; linoleic acid; retinol equivalent
Several parts (leaves at different maturity stages, stems, roots and seeds) of an edible wild vegetable, Stinging Nettle (Urtica dioica L.) were analysed for fatty acids by GLC and carotenoids by reversed-phase HPLC and gradient elution. alpha-linolenic acid was the pre-dominant fatty acid in leaves, while seeds were richer in linoleic acid. Nine carotenoids were identified in the leaves. For all leaf maturity levels, lutein, lutein isomers, beta-carotene and beta-carotene isomers were the major carotenoids. Neoxanthin, violaxanthin and lycopene were also important contributors in specific leaf maturity stages. (C) 2003 Elsevier Science Ltd. All rights reserved.
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