Accumulation of phenolics, antioxidant and antiproliferative activity of sweet corn (Zea mays L.) during kernel maturation

Abstract

Phenolic profiles and gene expression pattern in their synthetic pathway, total antioxidant activities and antiproliferative activities in two genotypes of sweet corn (YT16 and YT28) during kernel maturation were analysed. Results showed that increasing trends of phenolics and flavonoids in the two genotypes of kernels from 10 to 30 days after pollination (DAP). Gallic acid, chlorogenic acid, p-coumaric acid and ferulic acid were identified and quantified as the main phenolic compounds in both genotypes of kernels. High expressing levels of C4O and PAL resulted in the increasing phenolic contents. Higher expressing levels of CHS in YT28 led to higher flavonoid contents than that in YT16. The phenolic contents, antioxidant capacities and antiproliferative abilities of the two genotypes of sweet corn were competitive comparing to many fruits and vegetables. In addition, the maturation process of sweet corn could raise the kernel's bioactive ability as well as nutritional values.

Effect of Anthocyanin-Enriched Brine on Nutritional, Functional and Sensory Properties of Pickled Baby Corn

“…Chlorogenic acid, 3,4-dihydroxybenzoic acid and ferulic acid were identified as the main phenolic acids in the tested baby corn samples. Our results are well in accordance with data reported for sweet corn genotypes [49] as well as with literature data reporting that p-coumaric acid and ferulic acid were commonly identified in cereals [50][51][52]. Additionally, it had been reported that quercetin, kaempferol, vanillic, caffeic, and gallic acid were present [53,54].…”

Effects of different drying methods on phenolic composition and antioxidant activity in corn silk (Stigma maydis)

“…Nurraihana has used LC‐TOF/MS system to separate and identified 26 different phenolics in dry and mature corn silk, including flavone, flavone glycosides, flavonols, and isoflavone (Nurraihana, Wan Rosli, Sabreena, & Norfarizan‐Hanoon, 2018). According to previous data, the main phenolics in sweet corns were gallic acid, chlorogenic acid, p ‐coumaric acid, and ferulic acid and quercetin was only detected in corn silk compared with other part of corn (Hu, Liu, Yu, Li, Qi, Li, et al, 2021). Quercetin is a member of the flavonoid family and one of the main naturally occurring flavonol that has a long history of consumption as part of the normal human diet (Harwood, Danielewska‐Nikiel, Borzelleca, Flamm, Williams, & Lines, 2007).…”

“…Nurraihana has used LC-TOF/ MS system to separate and identified 26 different phenolics in dry and mature corn silk, including flavone, flavone glycosides, flavonols, and isoflavone (Nurraihana, Wan Rosli, Sabreena, & Norfarizan-Hanoon, 2018). According to previous data, the main phenolics in sweet corns were gallic acid, chlorogenic acid, p-coumaric acid, and ferulic acid and quercetin was only detected in corn silk compared with other part of corn (Hu, Liu, Yu, Li, Qi, Li, et al, 2021).…”

Phenolic compounds, carotenoids, and antioxidant activity in a super-sweet corn hybrid

“…Phenolic compounds are known to be more responsive to environmental factors than carotenoids (Zaynab et al, 2018). The degree of ripeness of the harvesting season would also be another factor to be considered, since different ripening stages may imply different phytochemical concentrations, including the content of carotenoids would be more affected than that of phenolic compounds (Hu et al, 2021). Nevertheless, there is no consensus on which factors would specifically affect the content of total carotenoids and total phenolics in different maize crops since there is a wide variety of species (Lopez-Martinez & Garcia, 2015).…”