Optimization of a process to obtain selenium-enriched freeze-dried broccoli with high antioxidant properties

Effect of methyl jasmonate, sodium selenate and chitosan as exogenous elicitors on the phenolic compounds profile of broccoli sprouts

“…Sodium selenate maintained the antioxidant capacity of broccoli sprouts at a level similar to the control sprouts. This was not the expected outcome, given the results published by Mahn et al , who reported an antioxidant capacity (EC 50 ) of 0.07 mg DM mL −1 in the inflorescence of broccoli subjected to selenium fortification through weekly irrigating with a 100 µmol L −1 sodium selenate solution during 10 weeks. In the present work, the highest antioxidant capacity achieved with sodium selenate treatment was an EC 50 of 1.12 mg DM mL −1 , which is 16 times lower than that reported by Mahn et al As a consequence, it can be presumed that the sodium selenate doses used in the present study were not high enough to significantly increase the antioxidant capacity of broccoli sprouts.…”

Optimisation of enzymatic production of sulforaphane in broccoli sprouts and their total antioxidant activity at different growth and storage days

“…Numerous factors, such as phenolic compounds, vitamin C, glucosinolates and so on, could affect antioxidant activity. A significant positive correlation between antioxidant activity and phenolic compounds of radish sprouts has been reported (Kim et al 2006), and low temperature (-20°C) have been observed to contributed to higher total antioxidant activity, as reported by Mahn et al (2012) Total polyphenols contents are only slightly affected by freeze-drying conditions. In our previous research, young broccoli sprouts contain lots of health-promoting compounds, such as phenolic, Anthocyanin and Flavonoids (Tian et al 2016).…”

Vitamin C, Phenolic Compounds and Antioxidant Capacity of Broccoli Florets Grown under Different Nitrogen Treatments Combined with Selenium

“…However, the application of different Se salts differs in their bioavailability owed to their different sorption ability in the soil. Among inorganic Se forms, Se (IV) uptake was higher than Se (VI) by lupin sprouts and broccoli that exhibited improved total antioxidant capacity [Mahn et al, 2012;Zielinska et al, 2008a]. Additionally, the application of Se (IV) in broccoli regulated plant water status under drought conditions [Germ et al, 2007] and increased glucosinolate content [Robbins et al, 2005].…”