title: The effect of the germination temperature on the phytochemical content of broccoli and rocket sprouts.
abstract: This study investigates the effect of different germination temperatures (10, 20 and 30 °C) on the phytochemical content as well as reducing and antioxidant capacity of broccoli and rocket sprouts. In both seeds and sprouts, the total glucosinolates and ascorbic acid contents did not differ between vegetables, while broccoli exhibited exceptionally higher polyphenols and greater reducing and antioxidant capacity compared to rocket. In both species, an increase in germination temperature positively affected the glucosinolate content. Ascorbic acid increased during germination without a difference among the three tested temperatures. The phenol content in broccoli sprouts increased when they were grown at 30 °C, but the amount decreased at the highest temperatures in rocket. The reducing and antioxidant capacities increased with germination, and higher indexes were detected at 10 °C, particularly in rocket. Different germination temperatures differentiate the health-promoting phytochemical content and antioxidant properties in broccoli and rocket sprouts.
authors: a Dipartimento di Agricoltura, Alimentazione e Ambiente , Università degli Studi di Catania , Catania , Italy.
authors: Lucia
authors: L
authors: Ragusa
authors: b Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Unità di Ricerca per i processi dell'Industria Agroalimentare , Milan , Italy.
authors: Valentina
authors: V
authors: Picchi
authors: a Dipartimento di Agricoltura, Alimentazione e Ambiente , Università degli Studi di Catania , Catania , Italy.
authors: Alessandro
authors: A
authors: Tribulato
authors: a Dipartimento di Agricoltura, Alimentazione e Ambiente , Università degli Studi di Catania , Catania , Italy.
authors: Chiara
authors: C
authors: Cavallaro
authors: b Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Unità di Ricerca per i processi dell'Industria Agroalimentare , Milan , Italy.
authors: Roberto
authors: R
authors: Lo Scalzo
authors: a Dipartimento di Agricoltura, Alimentazione e Ambiente , Università degli Studi di Catania , Catania , Italy.
authors: Ferdinando
authors: F
authors: Branca
mesh_terms: D019607:Brassicaceae / Q000737:chemistry / Q000502:physiology*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000502:physiology; D018525:Germination / Q000502:physiology*; D064209:Phytochemicals / Q000737:chemistry / Q000378:metabolism*; D013696:Temperature; D013997:Time Factors
chemical_list: D064209:Phytochemicals
keywords: Brassicaceae; antioxidant capacity; edible sprouts; glucosinolates; phytochemicals