Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2025Scopus SJRQ2Quantification of phenolics by LC-MS/MS of monofloral and polyfloral Honey: Evaluation of the greenness of the method with MoGAPI and MoGSA
Gerçek, Yusuf Can; Baştürk, Fatma Nur; Özkök, Aslı; Cevahir Öz, Gül; Ecem Bayram, Nesrin
This study evaluated the physicochemical properties, total phenolic content (TPC), total flavonoid content (TFC), antioxidant activity, proanthocyanidin content, and polyphenolic profiles of monofloral and multifloral honey samples produced in Türkiye. In addition, the greenness of the analytical method was assessed using two different evaluation tools: MoGSA and MoGAPI. The TPC and TFC values for multifloral honeys ranged from 0.18–0.65 mg GAE/g and 0.01–0.09 mg QE/g, respectively, whereas for monofloral honeys, these values ranged from 0.16–0.98 mg GAE/g and 0.01–0.37 mg QE/g. The highest CUPRAC and DPPH values were observed in Erica spp. honey, consistent with its TFC and total individual polyphenolic compound results. Notably, the Erica spp. honey sample exhibited a significantly higher gallic acid content (26.13 µg/g) compared to the other samples. These findings suggest that Erica spp. honey characterized by its high TPC, antioxidant activity, and distinctive polyphenolic profile, may serve as a notable dietary source of antioxidants. Additionally, the MoGAPI and MoGSA scores of the method were determined to be 84 and 91.67, respectively, demonstrating its high environmental sustainability.
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İncele - MakaleYalnız künye2024Scopus SJRQ3Microwave hydrodistillation of Pelargonium graveolens L’Her leaves: Essential oil profile, phytochemical composition of wastewater, histo-anatomical structure
Boztaş, Kadir; Gercek, Yusuf Can; Türer, Gizem; Canlı, Deniz; Bayram, Sinan; Çelik, Saffet; Kırkıncı, Seran; Basturk, Fatma Nur; Feizollahi, Sepideh; Cevahir Öz, Gül
By-products with remarkable bioactive properties are formed in extraction processes of essential oils from plant materials. In present study, it was aimed to determine the concentration of individual phenolic and organic acid compounds by LC-MS/MS of the by-product (wastewater) collected after the essential oil isolation from Pelargonium graveolens L. and to determine some bioactive properties of this by-product. In addition, the chemical analysis and antibacterial activity of the essential oil extracted from P. graveolens were determined and the histo-anatomical characterization of the glandular trichomes in the leaf sample was performed. As a result, quercetin (95862.22 μg/kg), myricetin (59834.32 μg/kg) and rutin (36522.90 μg/kg) were the phenolic compounds determined in the highest concentrations in the by-product extracted using two different extraction techniques (non-hydrolysis and hydrolysis methods). Moreover, the individual organic acids of the by-product screened in LC-MS/MS was found to be 4487.17 mg/kg in total. When the essential oil component profile of the plant sample was examined, the citronellol (38.78%) compound was found to be dominant, and it was also detected that the essential oil had remarkable bioactive properties. In conclusion, it can be stated that both the essential oil obtained from P. graveolens and the by-product obtained during essential oil isolation can be considered as a source of some bioactive components in many different industrial applications.
AtıfScopus6WoS4OpenAlex6İncele - MakaleAçık Erişim2022Scopus SJRQ2Anatomy, trichome micromorphology and phytochemical profile of Stachys rizeensis R.Bhattacharjee from Turkey
Gerçek, Yusuf Can; Acar Şahin, Aydan; Ecem Bayram, Nesrin; Çelik, Saffet; Sefalı, Abdurrahman; Gıdık, Betül; Cevahir Öz, Gül; Pınar, Nur Münevver
In recent years, the popularity of natural products and natural product formulations has increased due to their beneficial effects on health. As a part of this trend, Lamiaceae family members have attracted attention due to their rich bioactive properties. Although the Stachys rizeensis R.Bhattacharjee plant is an endemic plant species in Turkey, no studies focus on its characterization. Hence, the present study aims to demonstrate the anatomical, morphological and phytochemical characterization of S. rizeensis in Turkey. In the first stage of the study, anatomical and trichome morphological characterization was performed to contribute to the taxonomic definition of S. rizeensis was found to be anatomically different from some other previously studied Stachys sp. by showing lacunar collenchyma type, uncertain cambium at the corners, two or three rows of endodermis in certain areas in the stem and two rows of palisade parenchyma, capitate and peltate glandular trichomes in the leaf. In the second stage, the phenolic profile, total phenolic/flavonoid content and antioxidant activity of the plant extracts prepared using solvents with different polarities (ethanol, methanol, water, ethyl acetate and hexane) were tested to determine the phytochemical content of the plant. The phytochemical analysis supported by chemometric analysis (PCA and HCA) revealed that methanol was the most efficient organic solvent for the extraction of the phytochemical compounds of the plant. Additionally, it was observed that chlorogenic acid (1842.40–217,086.19 mg/kg), verbascoside (2591.43–204,429.81 mg/kg), luteolin (3579.56–88,636.14 mg/kg) and kaempferol (9706.30–50,340.93 mg/kg) compounds were present at maximum levels in this plant, in which 31 different phenolic compounds were scanned using LC-MS/MS. In addition, results obtained from the phytochemical analysis revealed that S. rizeensis is a valuable plant that can be used for medical protection/treatment and that it could also have a variety of culinary applications. The present study served as the first original report regarding the chemical profile and anatomical characteristics of S. rizeensis (Lamiaceae) from Turkey.
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