Antioxidant Activity and Phenolic Profile of Selected Organic and Conventional Honeys from Poland

Abstract

Honey is a natural food product hypothesized to have significant health-beneficial value. The results of recent studies indicate that the biological activity of honey can also be ascribed to phenolic compounds and their antioxidant activity. The aims of this study were: To determine the phenolic profiles of several varieties of Polish honey and their correlation with various factors influencing the quality of honey, plus to verify the impact of production method (organic/conventional) and the pollen content on these profiles. In total, 11 organic and 11 conventional honey samples from Poland were investigated. The botanical origin of the samples was identified through melissopalynological analysis, whereas individual phenolic compounds were determined by the LC/MS analysis. The Folin–Ciocalteau assay was used for the determination of the total phenolic content (TPC). Moreover, the CIE L*a*b* color values were measured and matched with the above-mentioned parameters. The results of the study contribute to the discussion on the health benefits of organic farming. It was found that chrysin may act as a potential indicator compound. The study confirms the existence of the link between TPC and color, and it shows that there is a correlation between pinocembrin and galangin, two compounds that are reported to ameliorate insulin resistance.

Ethanolic extract of Betel ( Piper betle L.) and Chaphlu ( Piper sarmentosum Roxb.) dechlorophyllized using sedimentation process: Production, characteristics, and antioxidant activities

“…Other compounds along with their derivatives were also detected but in different abundances for both extracts. This included some naturally occurring organic acids such as hydrocinnamic acid, orthothymotinic acid, quinic acid, and citric acid with varying bioactivities (Halagarda et al., 2020; Shen et al., 2019; Teixeira et al., 2013). Epigallocatechin and some of its derivatives, which are well‐known polyphenols for their bioactivities (Chu et al., 2017), were also found at low quantities in both extracts.…”

Saudi Rosmarinus officinalis and Ocimum basilicum L. Polyphenols and Biological Activities

“…Polyphenols are important plant secondary metabolites that are used for the control of aging as antioxidants [1] and the control microbes as antibacterial and antifungal agents [2,3]. Other applications of polyphenols had been discovered, such as anticancer agents [4][5][6][7], and food preservatives [8].…”

Malus baccata var. gracilis and Malus toringoides Bark Polyphenol Studies and Antioxidant, Antimicrobial and Anticancer Activities

“…There were antifungal effects against Aspergillus ochraceus, A. niger, and Candida albicans, and the activities were higher than the commercial reagent. M. baccata and M. toringoides could be considered as a new source of phenolic acids, including protocatechuic acid with anticancer, antibacterial antifungal, and antioxidant-promising effects.They are widely used for the control of neurodegenerative diseases [1], cancers [2][3][4][5], inflammation cardiovascular health [6,7], type 2 diabetes [8], obesity [9], insect control [10], antibacterial agents [11,12], antioxidants [13], food processing, and the production of functional foods [14]. Polyphenols are abundant in plants, and specific phenols have strong anticancer activities [15].…”