Chemical composition and antimicrobial activity of Gannan navel orange (Citrus sinensis Osbeck cv. Newhall) peel essential oils

Abstract

The present investigation reported the chemical composition of cold pressed Gannan navel orange peel essential oil (EO) and its molecular distillation fraction (light phase EO), and examined their antimicrobial activity against spoiling and pathogenic microorganisms. Gas chromatography‐mass spectrometry analysis identified 27 and 20 different chemical constituents in cold pressed EO and light phase EO, respectively. Limonene was the major constituent, accounting for 85.32% of cold pressed EO and 60.44% of light phase EO. Both EOs and some of their constituents showed good antimicrobial activity. Compared to cold pressed EO, light phase EO exhibited the better antimicrobial activity under weak acidic and neutral conditions. The light phase EO presented a higher antimicrobial activity after thermo‐treatment at 60–100°C for 20 min than cold pressed EO. These results demonstrated that light phase EO had a potential to be used as a novel antimicrobial agent for food preservation and food processing.

Chemical composition, antioxidant, antibacterial, and tyrosinase inhibition activity of extracts from Newhall navel orange (Citrus sinensis Osbeck cv. Newhall) peel

“…Although huge amounts of Newhall orange peels are produced annually in Ganzhou, to the best of our knowledge there are almost no reports regarding the value‐added utilization of this orange peel, except for recent studies reporting the discovery of antimicrobial essential oil from Gannan navel orange ( Citrus sinensis Osbeck cv. Newhall) peel . In this study, the chemical composition, antioxidant, antibacterial, and tyrosinase inhibitory activity of extracts of Newhall navel orange peels collected in Ganzhou, were comprehensively investigated for the first time, as they could contribute to the value‐added utilization of this orange peel in the food, cosmetic, and pharmaceutical industries.…”

“…Newhall) peel. 23 In this study, the chemical composition, antioxidant, antibacterial, and tyrosinase inhibitory activity of extracts of Newhall navel orange peels collected in Ganzhou, were comprehensively investigated for the first time, as they could contribute to the value-added utilization of this orange peel in the food, cosmetic, and pharmaceutical industries.…”

Recent advances in orange oil extraction: an opportunity for the valorisation of orange peel waste a review

“…Notwithstanding these minor variations, limonene and especially d ‐limonene, is usually the abundant component of the orange essential oil, followed by other phytochemicals such as myrcene, linalool, octanal, decana and other volatile components (Bo et al ., ; Sekar et al ., ; Ayala et al ., ) (Figure S1). The orange oil extracted from Gana originated orange consist of 85% limonene, 8% myrcene, 4% α‐pinene, 3% carvone, 3% limonene 1,2‐epoxide, 2% linalool and 2% carveol (Guo et al ., ). However, according to Ayala et al .…”

Chemical Composition, Antioxidant Potential, and Antimicrobial Activity of Elettaria cardamomum Essential Oil

“…Aromatic essential oils are obtained from aromatic plants organs and used as food flavors. In addition, these essential oils are applied to prevent bacteria and molds growth and also to increase the shelf life of processed foods in the human diet (7,8) . Antioxidant activity is one of the most important properties of essential oils and their active compounds.…”

“…The antimicrobial effects of essential oils are due to the increase in free radicals and lipids peroxidation, damaging cellular and mitochondrial walls of microorganism. Factors causing cellular degradation, cellular permeability, ions and cellular content leakage, and sensitive cellular materials excretion ultimately cause bacterial death (8) . Essential oils containing a high percentage of phenolic compounds, such as carvacrol, eugenol, and thymol, also have high antibacterial activity against food pathogens.…”