Brassica oleracea L grupo Acephala – Couve-galega

Brassica oleracea L grupo Acephala – Couve-galega

A Couve-galega é um vegetal crucífero pertencente ao grupo Acephala, da espécie Brassica oleracea. As suas características antioxidantes, antimicrobianas e anticancerígenas⁽¹⁴⁾ têm sido relevantes na prevenção e no tratamento de diversas doenças crónicas. Os seus efeitos benéficos parecem dever-se à presença de fitonutrientes que incluem o grupo dos glucosinolatos, compostos fenólicos, carotenoides e terpenóides⁽¹³⁾.

Do grupo dos glucosinolatos destaca-se o indole-3-carbinol como agente quimio-protetor, a sinigrina, a glucobrassicina e a glucorafarina que contribuem para a redução do risco da carcinogénese, diabetes, asterosclerose e de doenças neurodegenerativas, respiratórias, cardiovasculares e oculares. Dos compostos fenólicos sobressaem-se os flavonóides como a quercetina e o kaempferol, as antocianinas como o cianidlicosídeo, os ácidos benzóico, cinâmico, caféico e ferúlico. Dos carotenóides, o β-caroteno é importante para uma pele saudável e para os sistemas ósseo, gastrointestinal e respiratório, a luteína, o licopeno, o α-tocoferol e a zeaxantina para a manutenção das membranas celulares e prevenção dos danos oxidativos causados nos tecidos oculares⁽¹³⁾.

Nos últimos anos tem ganho popularidade como superalimento pela sua composição nutricional rica em clorofila, β-caroteno, flavonóides, glucorafarina, ácidos gordos, proteína, hidratos de carbono e fibra dietética. É fonte de vitaminas e minerais como as vitaminas A, C, E, K e as vitaminas do complexo B e, potássio, magnésio, ferro, cobre, folato e cálcio de elevada biodisponiblidade^(13,14).

REFERÊNCIAS BIBLIOGRÁFICAS

Introdução

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Erva de Trigo

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Erva Cevada

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Couve-galega

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Spirulina

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⁽¹⁷⁾ Martínez-Sámano J, Torres-Montes de Oca A, Luqueño-Bocardo OI, Torres-Durán PV, Juárez-Oropeza MA. Spirulina maxima Decreases Endothelial Damage and Oxidative Stress Indicators in Patients with Systemic Arterial Hypertension: Results from Exploratory Controlled Clinical Trial. Mar Drugs. 2018 Dec 8;16(12):496.

⁽¹⁸⁾ Szulinska M, Gibas-Dorna M, Miller-Kasprzak E, Suliburska J, Miczke A, Walczak-Gałezewska M, Stelmach-Mardas M, Walkowiak J, Bogdanski P. Spirulina maxima improves insulin sensitivity, lipid profile, and total antioxidant status in obese patients with well-treated hypertension: a randomized double-blind placebo-controlled study. Eur Rev Med Pharmacol Sci. 2017 May;21(10):2473-2481.

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Brócolos

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Chlorella

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⁽²⁵⁾ Yu M, Chen M, Gui J, Huang S, Liu Y, Shentu H, He J, Fang Z, Wang W, Zhang Y. Preparation of Chlorella vulgaris polysaccharides and their antioxidant activity in vitro and in vivo. Int J Biol Macromol. 2019 Sep 15;137:139-150.