Sürdürülebilir Kalkınma Amaçları
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- MakaleAçık Erişim2025Sensory and physicochemical characteristics of mulberry leathers enriched with sesame, almond, sunflower seeds, coconut, and peanut
Küçük, Murat; Baltaci, Cemalettin; İlyasoğlu, Huri; Karpuz, Omer; Yilmaz, Firat; Kılınç, Kagan; Güler, Burak; Topkaya, Gamze
This study aimed to investigate the utilization of sesame, sunflower seed, almond, peanut, and coconut as condiments for the enrichment of mulberry leather, known locally as mulberry pestil. The investigation involved a comprehensive analysis encompassing proximate composition, mineral content, color, physicochemical, and sensory properties. The studied parameters of enriched samples were compared with those of the plain sample. Employing multivariate statistical techniques enabled the differentiation of the enriched leather samples. Consequently, the leather samples were categorized into three groups by the principal component analysis according to their physicochemical and chemical attributes. Strong positive correlations were observed among the studied parameters, as indicated by Spearman's rank correlation coefficients. The physicochemical and chemical properties of enriched samples exhibited substantial variability. The enriched products had abundant calcium, potassium, magnesium, iron, and zinc levels. These findings revealed that incorporating these condiments enhanced the nutritional values of leather samples, especially in terms of minerals. 100 g of the enriched mulberry leathers had 68.0-70.7 g of carbohydrate, 4.6-5.7 g of protein, 3.6-5.9 g of fat, and 336-359 kcal of energy value. The enriched products might be proposed to provide nutrients and energy in emergencies, especially for adolescents and people affected by disasters.
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İncele - MakaleAçık Erişim2025Evaluation of antioxidant, antimicrobial, and α-amylase enzyme inhibition properties of Rosa canina seed extracts prepared with different solvents using maceration and ultrasound-assisted extraction methods
Baltaci, Cemalettin; Akmeşe, Osman; Aygül, İmdat; Kılınç, Kagan; Hafedh, Mohammed
The efficient extraction of bioactive molecules from medicinal plants is strongly related to the solvents and methods used. This study evaluated the impact of solvent selection and extraction methods on the bioactive potential of Rosa canina seed extracts, focusing on antioxidant, antimicrobial, and α-amylase inhibitory activities. Four solvents —dimethyl sulfoxide (DMSO), ethanol-water (80:20), ethyl acetate, and acetonitrile— were paired with maceration and ultrasonic techniques to generate eight extracts (DMM, DMU, ESM, ESU, EAM, EAU, ACM, ACS). Antioxidant activity was assessed via total phenolic (TPC) and flavonoid (TFC) content, FRAP, DPPH, and ABTS assays. Antimicrobial efficacy was tested against seven microorganisms (Gram+, Gram−, and yeast) using well diffusion and MIC methods, while α-amylase inhibition was quantified via IC50. The ethyl acetate ultrasonic extract (EAU) exhibited the highest TPC (63.86 mg GAE/g) and TFC (210.23 mg QE/g), along with superior antioxidant activity across all assays (P < 0.05). Ethyl acetate maceration (EAM) ranked second, underscoring ethyl acetate’s efficacy. Acetonitrile maceration (ACM) demonstrated the strongest α-amylase inhibition (IC50 = 20.46 mg/mL). All extracts showed notable antimicrobial activity against Aeromonas hydrophila and Klebsiella pneumoniae, though efficacy varied for other strains. DMSO-based extracts (DMM/DMU) consistently underperformed. These findings highlight ethyl acetate (EAU/EAM) as optimal for antioxidant-rich extracts and ACM for enzyme inhibition, positioning Rosa canina seeds as a promising source of natural bioactive compounds for functional food and therapeutic applications.
AtıfOpenAlex2İncele - MakaleAçık Erişim2024Effect of Different Storage Conditions and Infusion Times on Antioxidant and Antimicrobial Activites and Total Phenolic Content of Rosehip Fruits
Düzgün, Azer Özad; Acet, Tuba; Baltaci, Cemalettin; Akmeşe, Osman; Ural, Mustafa Nuri; Akar, Zeynep; Darak, Münevver; Kılınç, Kagan
Rosa canina L. (Rosehip) is a medicinal plant with strong antioxidant properties.The content of rosehip and accordingly its antioxidant capability may vary according to the way the fruits are used, storage, infusion, freezing and drying methods. In study, it was aimed to determine the antioxidant, antimicrobial activities in rosehip infusion products and extracts under these conditions. Fresh, frozen, dried and +40C stored fruits were infused at 90 degrees and infusion groups were formed. During infusion, samples were taken at 30, 60, 90, 120, 300 and 360th minutes and antioxidant activity (DPPH, FRAP and ABTS methods), total phenolic and total flavonoid contents (TPC and TFC), and antimicrobial activity were analyzed. In addition, phenolic compound content was investigated in 3 different extracts by HPLC method. Dried rosehip (DR) infusing samples were found to have the highest antioxidant activity, TPC and TFC compared to all groups (p-value ranged between 0.000 and 0.05).). Significant decreases were detected in the parameters according to storage and freezing times. A total of 8 phenolic compounds, the highest concentration of which was epicatechin, were detected in aqueous and ethanolic extracts of dried and stored at 40C rosehip (DR+40C) and dried rosehip (DR) fruits. For antimicrobial analysis, Total 7 different Gram (+) and (Gram (-) bacterial strains, were used. While antimicrobial activity was observed in the extracts, no activity was observed in the infusion products. It was determined that antioxidant activity increased during 360 minute infusion time, although it varied according to storage conditions.
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