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Open AccessArticle

Bioactive Compounds and Antioxidant Capacity of Moringa Leaves Grown in Spain Versus 28 Leaves Commonly Consumed in Pre-Packaged Salads

1
Department of Nutrition and Food Science, University of Granada, 18071 Granada, Spain
2
Institute of Nutrition and Food Technology ‘José Mataix’, Biomedical Research Centre, University of Granada, Avda del Conocimiento sn., Armilla, 18100 Granada, Spain
*
Author to whom correspondence should be addressed.
Processes 2020, 8(10), 1297; https://doi.org/10.3390/pr8101297
Received: 2 September 2020 / Revised: 9 October 2020 / Accepted: 14 October 2020 / Published: 16 October 2020
(This article belongs to the Special Issue Phenolic Profiling and Antioxidant Capacity in Agrifood Products)
Total antioxidant capacity (TAC) evaluated by ferric ion reducing antioxidant power (FRAP) assay, ABTS, DPPH, and Oxygen radical absorbance capacity (ORAC) assay, and total polyphenol content (TPC) by Folin–Ciocalteu were determined in Moringa oleifera leaves (MO) grown in Spain, and compared with 28 different vegetable leaves pre-packaged for consumption as a salad. Total carotenoids, flavonoids, and chlorophylls were also determined in the samples with highest TAC. Two different extraction procedures were applied to obtain the methanolic fraction and the lipophilic and hydrophilic fractions. The highest TAC and TPC contents were found in MO. High values were also found in red chicory, “lollo rosso”, and oak lettuce. The lowest TAC and TPC values were obtained in iceberg lettuce. The correlations between the extraction procedures and methods assayed were high and statistically significant. In the light of these results, we suggest the addition of MO to the existing range of fresh-cut salad foods would increase their antioxidant content by up to six times. View Full-Text
Keywords: moringa oleifera; antioxidant capacity; carotenoids; chlorophylls; phenolic compounds; salad moringa oleifera; antioxidant capacity; carotenoids; chlorophylls; phenolic compounds; salad
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MDPI and ACS Style

González-Romero, J.; Arranz-Arranz, S.; Verardo, V.; García-Villanova, B.; Guerra-Hernández, E.J. Bioactive Compounds and Antioxidant Capacity of Moringa Leaves Grown in Spain Versus 28 Leaves Commonly Consumed in Pre-Packaged Salads. Processes 2020, 8, 1297.

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