Avtor/Urednik		Barreira, Luísa; Hafner, Eva; Rodrigues, Maria João; Rocha, Maria Isabel; Pereira, Hugo; Bandarra, Narcisa; Moreira da Silva, Manuela; Varela, João; Custódio, Luísa
Naslov		Halophytes
Tip		članek
Vol. in št.		, št. Vol. 59
Leto izdaje		2017
Obseg		str. 35-42
ISSN		0889-1575 - Journal of food composition and analysis : an official publication of the United Nations University, International Network of Food Data Systems
Jezik		eng
Abstrakt		Although little is known about their nutritional composition, Sarcocornia perennis subsp. perennis, S. perennis subsp. alpini and Salicornia ramosissima (Salicorniaceae) as well as Arthrocnemum macrostachyum (Amaranthaceae) are consumed in gourmet cuisine. In spite of belonging to different families, these halophytes share morphological and organoleptic characteristics. This work explored the nutritional properties and the antioxidant potential of these species using five integrative methods. All species had a nutritional profile suitable for human consumption with high levels of protein (5.20%13.2 g/ 100 g dw) and n-3 polyunsaturated fatty acids (FA), particularly a-linolenic acid (19.3-25.9% of total FA), and low concentration of toxic metals (below the limits imposed by the European Commission). These halophytes are also a good source of minerals, particularly sodium (64.1-109 mg/g dw), and S. ramosissima is an excellent source of manganese (204 mg/g dw). However, due care should be taken not to exceed the legal limits for sodium ingestion. These plants showed also significant antioxidant potential, with high radical scavenging activity (RSA), iron reducing power and total phenolics content (20.5% 49.2 mg GAE/g). A. macrostachyum had the highest RSA (IC50-DPPH = 0.84 mg/mL; IC50-NO = 0.60 mg/mL), and iron reducing potential (IC50 = 0.84 mg/mL) along with high levels of a- and g-tocopherol (8.74 and 4.71 mg/100 g dw, respectively).
Proste vsebinske oznake		food analysis food composition nutritional evaluation analiza hrane sestava hrane prehransko vrednotenje