Fatty acids profiles of some Spanish wild vegetables

• Autor(a) principal: Morales, Patricia
• Data de Publicação: 2012
• Outros Autores: Ferreira, Isabel C.F.R., Carvalho, Ana Maria, Sánchez Mata, María de Cortés, Cámara Hurtado, Montaña, Tardío, Javier
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10198/7373
• topic: Wild edible vegetables; Fatty acids; Gas-Chromatography; Nutritional parameters

Polyunsaturated fatty acids play an important role in human nutrition, being associated with several health benefits. The analyzed vegetables, in spite of his low fat content, lower than 2 %, presents a high proportion of PUFA of n-3, n-6 and n-9 series, such as α-linolenic, linoleic, and oleic acids, respectively. Wild edible plants contain in general a good balance of n-6 and n-3 fatty acids. The present study tries to contribute to the preservation and valorization of traditional food resources, studying the fatty acids profile of twenty wild vegetables by GC-FID. Results show that species in which leaves are predominant in their edible parts have in general the highest PUFA/SFA ratios: Rumex pulcher (5.44), Cichorium intybus (5.14) and Papaver rhoeas (5.00). Due to the low n-6/n-3 ratios of the majority of the samples, they can be considered interesting sources of n-3 fatty acids, especially those with higher total fat amount, such as Bryonia dioica, Chondrilla juncea or Montia fontana, with the highest contents of α-linolenic acid (67.78, 56.27 and 47.65%, respectively). The wild asparaguses of Asparagus acutifolius and Tamus communis stand out for their linoleic acid content (42.29 and 42.45%, respectively). All these features reinforce the interest of including wild plants in diet, as an alternative to the variety of vegetables normally used.