4.6 Article

Sea Purslane as an Emerging Food Crop: Nutritional and Biological Studies

期刊

APPLIED SCIENCES-BASEL
卷 11, 期 17, 页码 -

出版社

MDPI
DOI: 10.3390/app11177860

关键词

halophyte; sea purslane; minerals; antioxidant activity; novel ingredient

资金

  1. Portuguese Foundation for Science and Technology [UID/MULTI/00070/2019]
  2. European Regional Development Fund [Portugal 2020-POCI-01-0145-FEDER-029305, Centro 2020-Centro-01-0145-FEDER-000007]

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Halophyte plant sea purslane has significant nutritional and antioxidant properties, making it a potential source of dietary fiber, protein, and natural minerals. The plant's methanolic extracts can be used in food products, highlighting its potential as a salt substitute.
Halophyte plants are highly adapted to salt marsh ecosystems due to their physiological and ecological characteristics. Halimione portulacoides (L.) Aellen is one abundant halophyte shrub that belongs to a Chenopodiaceae family and Caryophyllales order and is found on sandy or muddy coastlines and salt marshes. In this study, the leaves of sea purslane (H. portulacoides) grown in Figueira da Foz (Portugal) were characterized at nutritional and mineral concentration. Moreover, different methanolic extracts were obtained from the leaves, and the antioxidant activity was assessed by several methods. From a nutritional point of view, this halophyte plant may be considered a good source of dietary fiber, protein, natural minerals such as calcium, magnesium, manganese, copper, and potassium. The primary sugar found in leaves of sea purslane is maltose, followed by sucrose, glucose, and fructose. Finally, leaves showed a high content of phenolic compounds and considerable antioxidant activity. The novel products butter and pasta enriched with powder dried leaves of H. portulacoides revealed the plant's potential to be used as a salt substitute and a good alternative to enhance the sensory characteristics of products, with additional health benefits. The nutritional characteristics and the phytochemical value highlight H. portulacoides as a potential candidate crop in saline agriculture and to be used as a new vegetable, especially as a premium food in the novel salty veggies market or as a kitchen salt substitute.

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