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Time dependence of bioactive compounds and antioxidant capacity during germination of different cultivars of broccoli and radish seeds
|Authors:||Martínez Villaluenga, Cristina ; Peñas, Elena ; Ciska, Ewa; Piskula, Mariusz K.; Kozlowska, Halina; Vidal-Valverde, Concepción ; Frías, Juana|
|Citation:||Food Chemistry 120(3): 710–716 (2010)|
|Abstract:||Optimisation of the germination process of different cultivars of broccoli (Brassica oleracea var. italica cv. Lucky, cv. Tiburon and cv. Belstar) and radish (Raphanus sativus cv. Rebel and cv. Bolide) seeds in relation to the content of glucosinolates (GLS), vitamin C and total antioxidant capacity was carried out in order to maximise the health-promoting properties of Brassica sprouts. The content of total and individual GLS varied between species, among cultivars, and germination time. Glucoraphanin in broccoli and glucoraphenin in radish were the predominant GLS in raw seeds (61–77 and 63–129 lmol/g DM, respectively) and, although their content decreased during germination, they were maintained in rather large proportions in sprouts. Vitamin C was not detected in raw seeds and its content increased sharply in broccoli and radish sprouts (162–350 and 84–113 mg/100 g DM, respectively). Raw brassica seeds are an excellent source of antioxidant capacity (64–90 and 103–162 lmol Trolox/g DM in broccoli and radish, respectively) and germination led to a sharp increase. Germination of broccoli cv. Belstar and radish cv. Rebel for 4 days provided the largest glucoraphanin and glucoraphenin content, respectively, and also brought about large amounts of vitamin C and antioxidant capacity|
|Publisher version (URL):||http://dx.doi.org/10.1016/j.foodchem.2009.10.067|
|Appears in Collections:||(IFI) Artículos|
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