Journal
FOOD CHEMISTRY
Volume 426, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.136603
Keywords
Broccoli sprouts; Isothiocyanates; Selenium; Gene; Proteome
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Broccoli sprouts have the ability to accumulate isothiocyanate and selenium. ZnSO4 stress significantly increased the isothiocyanate content, while combined treatment with ZnSO4 and Na2SeO3 alleviated the inhibition of ZnSO4 and induced selenium content. Gene transcription and protein expression analyses revealed the changes in isothiocyanate and selenium metabolite levels in broccoli sprouts.
Broccoli sprouts have a strong ability to accumulate isothiocyanate and selenium. In this study, the isothiocy-anate content increased significantly as a result of ZnSO4 stress. Particularly, based on the isothiocyanate content is not affected, the combined ZnSO4 and Na2SeO3 treatment alleviated the inhibition of ZnSO4 and induced selenium content. Gene transcription and protein expression analyses revealed the changes in isothiocyanate and selenium metabolite levels in broccoli sprouts. ZnSO4 combined with Na2SeO3 was proven to activate a series of isothiocyanate metabolite genes (UGT74B1, OX1, and ST5b) and selenium metabolite genes (BoSultr1;1, BoCOQ5-2, and BoHMT1). The relative abundance of the total 317 and 203 proteins, respectively, in 4-day-old broccoli sprouts varied, and the metabolic and biosynthetic pathways for secondary metabolites were signifi-cantly enriched in ZnSO4/control and ZnSO4 combined Na2SeO3/ZnSO4 comparisons. The findings demonstrated how ZnSO4 combined with Na2SeO3 treatment reduced stress inhibition and the accumulation of encouraged selenium and isothiocyanates during the growth of broccoli sprouts.
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