Antioxidant activity of fresh and processed Jalapeño and Serrano peppers.
In this research, total phenols, flavonoids, capsaicinoids, ascorbic acid, and antioxidant activity (ORAC, hydroxyl radical, DPPH, and TEAC assays) of fresh and processed (pickled and chipotle canned) Jalapeño and Serrano peppers were determined. All fresh and processed peppers contained capsaicin, dihydrocapsaicin, and nordihydrocapsaicin, even though the latter could be quantified only in fresh peppers. Processed peppers contained lower amounts of phytochemicals and had lower antioxidant activity, compared to fresh peppers. Good correlations between total phenols and ascorbic acid with antioxidant activity were observed. Elimination of chlorophylls by silicic acid chromatography reduced the DPPH scavenging activity of the extracts, compared to crude extracts, confirming the antioxidant activity of chlorophylls present in Jalapeño and Serrano peppers.
Universidad Autónoma de Ciudad Juárez, Departamento de Ciencias Químico-Biológicas, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez, Chihuahua, CP, Mexico.
Emilio
E
Alvarez-Parrilla
Laura A
LA
de la Rosa
Ryszard
R
Amarowicz
Fereidoon
F
Shahidi
D000975:Antioxidants / Q000032:analysis*; D002212:Capsicum / Q000737:chemistry*; D005511:Food Handling; D010636:Phenols / Q000032:analysis; D053147:Plant Exudates / Q000032:analysis*
D000975:Antioxidants; D010636:Phenols; D053147:Plant Exudates