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Chemical composition and in vitro antimicrobial and antioxidant activities of Citrus aurantium l. flowers essential oil (Neroli oil)
Abstract
Neroli essential oil is extracted from the fragrant blossoms of the bitter orange tree. It is one of the most widely used floral oils in perfumery. In this study chemical composition and in vitro antimicrobial and antioxidant activities of neroli oil are investigated. The essential oil of fresh Citrus aurantium L. Flowers (Neroli oil) cultivated in North East of Tunisia (Nabeul) were analyzed by GC-FID and GC-MS. About 33 compounds were identified, representing 99% of the total oil. Limonene (27.5%) was the main component followed by (E)-nerolidol (17.5%), alpha-terpineol (14%), alpha-terpinyl acetate (11.7%) and (E, E)-farnesol (8%). Antimicrobial activity was determined by Agar-well-diffusion method against 6 bacteria (3 Gram-positive and 3 Gram-negative), 2 yeasts and 3 fungi. Neroli oil exhibited a marked antibacterial activity especially against Pseudomonas aeruginosa. Moreover, Neroli oil exhibited a very strong antifungal activity compared with the standard antibiotic (Nystatin) as evidenced by their inhibition zones. Antioxidant activity determined by ABTS assay showed IC50 values of 672 mg L(-1). Finally, this study may be considered as the first report on the biological properties of this essential oil. The results of this study have provided a starting point for the investigations to exploit new natural substances present in the essential oil of C. aurantium L. flowers.
... exhibits antimicrobial activity. 21,22 N.O. has notable anti-inflammatory effects 22 and exhibits potent antioxidant activity with 100% singlet oxygen scavenging activity at concentrations ranging from 0.1% to 2%. ...
... has notable anti-inflammatory effects 22 and exhibits potent antioxidant activity with 100% singlet oxygen scavenging activity at concentrations ranging from 0.1% to 2%. 21,23 Among the documented effects of N.O. in the literature, it has been found to have anticonvulsant, 24 antianxiety effects in preoperative applications 25 and postmenopausal women, 26 significant anti-inflammatory effects against acute and chronic inflammation, and effective central and peripheral antinociceptive effects in inflammation and pain management. 22 It has also shown an increase in libido in postmenopausal women. ...
Introduction
Endometriosis is a serious health problem among women of reproductive age, with pelvic pain and infertility. Given the limited success of current treatments, this study explores Neroli oil (N.O.) effects on inflammation, oxidation, angiogenesis, and tissue remodeling implicated in endometriosis.
Materials and Methods
Albino Wistar female rats were used to simulate an endometriosis model. Groups were established for comparison: a control, an endometriosis model, a N.O.‐treated group, and a N.O.‐treated group postendometriosis induction. The study focused on Tumor necrosis factor‐alpha (TNF‐α), Interleukin 6, Interleukin 8, vascular endothelial growth factor (VEGF), myeloperoxidase, Matrix metalloproteinase‐1 (MMP‐1), nitric oxide, superoxide dismutase, catalase, and anti‐mullerian hormone values, as well as histopathological evaluations of endometriotic foci.
Results
AMH values showed a significant increase in the endometriosis group treated with N.O. compared with the endometriosis group ( p < 0,01).A statistically significant decrease was found in MMP‐1 level in the endometriosis group that underwent N.O. ( p < 0.001). Increased CAT ( p < 0.0001) and decrease in nitric oxide ( p < 0.01) are found in N.O.‐treated endometriosis group. TNF‐α levels in the endometriosis group showed a statistically significant increase in the endometriosis group when compared with the control and sham group ( p < 0.001, p < 0.01 respectively). In our study, a statistically significant increase was observed in VEGF levels ( p < 0.001) in endometriosis group and significant decrease in the N.O. administered endometriosis model group. Groups treated with N.O. showed decreased inflammation and congestion scores. Histopathological assessments demonstrated reduced inflammation and tissue remodeling signs in endometriotic foci.
Conclusion
This study highlights the potential of N.O. in the treatment of endometriosis, owing to its anti‐inflammatory, antioxidant, and antiangiogenic properties that can disrupt chronic processes. Our findings lend support to utilization of herbal remedies for the management of endometriosis, thereby emphasizing the necessity for additional comprehensive investigations in the future.
... EO, such as: Syzgium aromaticum, Pelargonium graveolens, Lavandula angustifolia, Cupresus sempervirens, Mentha piperita, Santolina chamaecyparissus, Citrus sinesis, Pogostemon patchouli, Thymus mastichina, Thymus vulgaris, Eucalyptus globulus and Rosmarium officinalis, have been reported to possess antifungal activities against Trichoderma aggressivum (Di anez et al., 2018). The neroli essential oil (NEO), extracted from the flowers of Citrus aurantium, is mainly used in applications, such as: aromatherapy, perfume industries, cosmetics and food flavouring (Haj et al., 2012). Monsef et al. (2004) reported that limonene, linalyl acetate, b-pinene are the major bioactive compounds of NEO (Monsef et al., 2004). ...
White button mushroom (Agaricus bisporus) has a wide nutritional benefit and a major drawback in supply chain management, due to its short shelf‐life of between 3 and 4 days. Postharvest spoilage caused by Trichoderma and Rhizopus including green‐mould and soft‐rot diseases causes an enormous impact on the shelf‐life of mushroom. Research work is designed to isolate the post‐harvest pathogens from mushroom and determine the effects of eight essential oils on the control of the major postharvest pathogens (T. lentinulae and R. arrhizus). Neroli and palmarosa exhibited 100% inhibition of the two pathogens at 3 and 4 μL/plate, respectively. In‐vivo studies showed that fumigation of neroli and palmarosa essential oils at concentrations of 46.2 and 61.6 μL L⁻¹ exhibited a significant effect on the postharvest pathogens. Major components present in neroli and palmarosa are linalool and geraniol respectively. Findings concluded that neroli and palmarosa could be an efficient natural fungicide to reduce postharvest diseases in white button mushroom.
... C.aurantium species known as bitter orange is a fruiting shrub native to tropical and subtropical countries around the world and cultivated in many regions due to its nutraceutical value as well as economic importance [16]. Several studies reported the biologically active essential oils extracted from peels, leaves (petitgrain), and flowers (neroli) of C. aurantium [17][18][19][20]. Peel volatile oil particularly has been notified in literaturefor its significant economic value and market demand, being used in flavor, fragrance, medicine, and other fields [21]. ...
Background
Bitter orange (Citrus aurantium) is a fruiting shrub native to tropical and subtropical countries around the world and cultivated in many regions due to its nutraceutical value. The current study investigated the metabolic profiling and enzyme inhibitory activities of volatile constituents derived from the C. aurantium peel cultivated in Egypt by three different extraction methods.
Methods
The volatile chemical constituents of the peel of C. aurantium were isolated using three methods; steam distillation (SD), hydrodistillation (HD), and microwave-assisted hydrodistillation (MAHD), and then were investigated by GC-MS. The antioxidant potential was evaluated by different assays such as DPPH, ABTS, FRAP, CUPRAC, and phosphomolybdenum and metal chelating potential. Moreover, the effect of enzyme inhibition of the three essential oils was tested using BChE, AChE, tyrosinase, glucosidase, as well as amylase assays.
Results
A total of six compounds were detected by GC/MS analysis. The major constituent obtained by all three extraction methods was limonene (98.86% by SD, 98.68% by HD, and 99.23% by MAHD). Differences in the composition of the compounds of the three oils were observed. The hydrodistillation technique has yielded the highest number of compounds, notably two oxygenated monoterpenes: linalool (0.12%) and α-terpineol acetate (0.1%).
Conclusion
In our study differences in the extraction methods of C. aurantium peel oils resulted in differences in the oils’ chemical composition. Citrus essential oils and their components showed potential antioxidant, anticholinesterase, antimelanogenesis, and antidiabetic activities. The presence of linalool and α-terpineol acetate may explain the superior activity observed for the oil isolated by HD in both radical scavenging and AChE inhibition assays, as well as in the enzyme inhibition assays.
... 5 To improve the beneficial effects and quality of functional food products, LJ (Citrus limon) was formulated with Lactobacilli and sugars that enhances valuable ingredients such as ascorbic acid, citric acid acting as antioxidants. 9 The formulated LJ may be an alternative vehicle for the incorporation of probiotics because they were rich in nutrients and do not contain starter cultures that compete for nutrients with probiotics. 10 Thus, the food industry can refer to the juice supplemented with probiotics as 'functional foods'. ...
The use of probiotic Lactobacilli has moved from concept to implement in different applications. The study was carried out to establish the synergistic role of co-cultures of Lactobacillus casei, L. delbrueckii, L. plantarum and L. helveticus in lemon juice (LJ) preservation as well as investigate the inflammatory- and toxicity profiles of biopreserved LJ ingested shigellosis mice. Lactobacilli were cultured individually and cocultured with different combinations. Four strain Lactobacilli had significant preservative activity than any other combinations in both free and microencapsulated Lactobacilli. The four microencapsulated bacteria extended shelf-life of the LJ in about two weeks at 4°C. The free or microencapsulated bacteria were increased acidic pH into LJ. It was evidently proved that microencapsulated cocultures of different strains remained viable over a long period of time and the probiotically fermented juice were potentially inhibiting the pathogenic growth. For inflammatory acute shigellosis, therapies were divided into six groups: LJ only; LJ containing pathogenic bacteria (PB); LJ containing curd, the source of Lactobacilli; LJ containing curd and PB; LJ containing four Lactobacilli LAB1,3,4,6 and LJ containing chemical preservatives (PR, prophyl paraben and methyl paraben 9:1). Lactobacilli preserved LJ were found to be favorably lower inflammatory haematological profiles such as ESR, WBC count and C-reactive protein (CRP) agglutination in acute shigellosis mice. In addition, biopreserved LJ was safe owing to normal ranges of SGPT, SGOT, SALP and AA levels in shigellosis mice. Prospective studies on mechanisms of the probiotic activities might be enable their new medical applications for food preservation and treatment of inflammatory dysentery patients.
... Sleep quality was assessed before and after intervention and it was observed that enhanced the sleep quality (Table 6). These effects occur through the regulation of serotoninergic receptors (5-HT 1A ) (Table 8) (Costa et al., 2013) whereas antioxidant effects are implicated in neuroprotection (Ammar et al., 2012;Stohs, 2017). ...
The incidence and prevalence of age‐related neurodegenerative dementias have been increasing. There is no curative therapy and conventional drug treatment can cause problems for patients. Medicinal plants traditionally used for problems associated with ageing are emerging as a therapeutic resource. The main aim is to give a proposal for use and future research based on scientific knowledge and tradition. A literature search was conducted in several searchable databases. The keywords used were related to neurodegenerative dementias, ageing and medicinal plants. Boolean operators and filters were used to focus the search. As a result, there is current clinical and preclinical scientific information on 49 species used in traditional medicine for ageing‐related problems, including neurodegenerative dementias. There are preclinical and clinical scientific evidences on their properties against protein aggregates in the central nervous system and their effects on neuroinflammation, apoptosis dysregulation, mitochondrial dysfunction, gabaergic, glutamatergic and dopaminergic systems alterations, monoamine oxidase alterations, serotonin depletion and oestrogenic protection. In conclusion, the potential therapeutic effect of the different medicinal plants depends on the type of neurodegenerative dementia and its stage of development, but more clinical and preclinical research is needed to find better, safer and more effective treatments.
... Neroli is, due to a very fine aroma, one of the most important oils in the industry of perfumes and soaps. The oil has antimicrobial, antidepressant, antiseptic, carminative and sedative effects [34]. In cosmetics, it is usually used to refresh tired and greasy skin. ...
The latest trend in textile industry promotes products with added value that provide additional comfort to users and have a focus on health in terms of use. In that sense, biofunctional and intelligent textile products with different types of applications for improving the lifestyle of the modern consumer stand out. Cosmetic textile is a high-performance textile which represents a fusion of textile material with cosmetics. The main challenges in the manufacture of such products are the selection of products with a cosmetic effect for a particular purpose, storage of agents in the structure of the textile, the rate of release of the agent on the skin and the stability of the agent to the maintenance procedures of textiles and clothing. This paper provides an overview of cosmetic agents for application on textiles, methods of their storage and release and the techniques applicable on textile. Finally, a range of commercially available cosmetic textile products is presented.
[Purpose] Sarcopenia, characterized by the age-related loss of muscle mass and function, is a multifactorial condition influenced by oxidative stress, hormonal changes, and chronic inflammation. This study investigated the effects of resistance exercise and nutritional interventions, including antioxidants, such as monoterpenes, on sarcopenia prevention and treatment.[Methods] To identify relevant studies, a comprehensive literature search was conducted using electronic databases including PubMed and Google Scholar. Keywords such as “sarcopenia,” “resistance exercise,” “antioxidants,” “nutrition,” “muscle regeneration,” and related terms were utilized to gather evidence on the prevention and management of sarcopenia.[Results] This review focuses on the etiological factors of sarcopenia, particularly the decline in muscle function and acceleration of muscle protein degradation. This highlights the critical importance of the combined effects of exercise and nutrition in overcoming these challenges, with special emphasis on the potential of antioxidant intake as a promising solution for managing this condition[Conclusion] An integrated approach combining periodic resistance exercise with antioxidant-rich nutritional strategies is essential for the management of sarcopenia. By promoting muscle development and inhibiting protein breakdown, this dual strategy provides an effective framework for preventing and treating sarcopenia, and improving quality of life of the aging population. Further studies are warranted to explore the clinical potential of monoterpenes in the treatment of sarcopenia.
Numerous studies have demonstrated essential oils’ diverse chemical compositions and pharmacological properties encompassing antinociceptive, anxiolytic-like, and anticonvulsant activities, among other notable effects. The utilization of essential oils, whether inhaled, orally ingested, or applied topically, has commonly been employed as adjunctive therapy for individuals experiencing anxiety, insomnia, convulsions, pain, and cognitive impairment. The utilization of synthetic medications in the treatment of various disorders and symptoms is associated with a wide array of negative consequences. Consequently, numerous research groups across the globe have been prompted to explore the efficacy of natural alternatives such as essential oils. This review provides a comprehensive overview of the existing literature on the pharmacological properties of essential oils and their derived compounds and the underlying mechanisms responsible for these observed effects. The primary emphasis is on essential oils and their constituents, specifically targeting the nervous system and exhibiting significant potential in treating neurodegenerative disorders. The current state of research in this field is characterized by its preliminary nature, highlighting the necessity for a more comprehensive overlook of the therapeutic advantages of essential oils and their components. Integrating essential oils into conventional therapies can enhance the effectiveness of comprehensive treatment regimens for neurodegenerative diseases, offering a more holistic approach to addressing the multifaceted nature of these conditions
The physiological activity of the 50% ethanolic extract of Citrus aurantium flower before and after fermentation was investigated in this study. C. aurantium flowers grown in Taiwan were extracted using 100% methanol or 50% ethanol and then fermented by one of six microbes: four species of lactic acid bacteria (Bifidobacterium bifidum, Bifidobacterium lactis, Lactobacillus acidophilus, and Lactobacillus brevis) anaerobically cultivated in MRS broth and two species of mold (Aspergillus oryzae and Aspergillus niger) aerobically cultivated in potato dextrose broth. The 50% ethanolic extract of C. aurantium flowers exhibited higher tyrosinase inhibition (IC50: 200.8 ± 11.6 mg/L) and antioxidative activity than did a 100% methanolic extract (IC50: 274.1 ± 15.7 mg/L). The 50% ethanolic extract fermented by L. brevis (L. brevis–fermented extract) exhibited the highest yield (86.2% ± 1.2%) and physiological activity. The L. brevis–fermented extract exhibited over 5.2-, 13.5-, 12.5-, 3.17-, and 4.29-fold higher antityrosinase activity, antioxidative activity, antibacterial activity, total flavonoid content, and antiwrinkle activity than did the unfermented extract. The L. brevis–fermented extract can be considered safe because it exerted no toxic effect on CCD-966SK or HEMn cells at concentrations of 400 and 200 mg/L, respectively. The fermented extract (40 mg/L) inhibited melanin formation, reducing it to 50.8% ± 2.3%. Furthermore, the L. brevis–fermented extract exhibited excellent antiaging and antiwrinkle activity, as determined from MMP-1, MMP-2, elastase, and collagenase activity. The improvement in physiological characteristics, especially the considerable formation of neohesperidin, is mainly attributable to biosynthesis or biotransformation by L. brevis during fermentation. In conclusion, the 50% ethanolic extract of C. aurantium flowers fermented with L. brevis can be used in cosmetics applications aiming for skin-whitening or antiwrinkle properties.
Aromatic waters of rose, dog rose, bitter orange flowers and geranium were prepared by traditional hydrodistillation systems. The aromatic fractions of these waters were isolated by dynamic, static headspace and by solvent extraction, and were analyzed by GC/MS. Results were compared with corresponding oils of literature.