Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ1Comprehensive Analysis of Phytochemical Compounds in Seeds of Indigenous Grape Varieties Cultivated in Southeastern Anatolia: Fatty Acids, Tocopherols, Phytosterols, Vitamins, and Antioxidant Properties
Odabaşioğlu, Mehmet İlhan; Çakır, Atilla; Karaca Sanyürek, Nesrin; İşlek, Fırat
Aim: In this study, the phytochemical composition of the seeds of twelve different local grape (Vitis vinifera L.) varieties traditionally cultivated in the Southeastern Anatolia Region (Diyarbakır, Türkiye) was investigated using a holistic approach. The main objective of the study was to evaluate the associations of the effects of berry skin colour, the ripening stage and utilization type on the fatty acid profile, tocopherol and phytosterol contents, vitamin K and D levels, antioxidant capacity (DPPH) and lipid peroxidation (MDA) of grape seeds. Method: The seeds of grape varieties belonging to four different colour groups, grown on their own roots, were harvested during the 2017 growing season and analysed. Fatty acid composition was determined by gas chromatography (GC), vitamin and phytosterol contents by HPLC-UV, MDA content by the thiobarbituric acid reactive substance (TBARS) method, and antioxidant capacity by the DPPH radical scavenging assay. Findings: Linoleic acid was identified as the predominant fatty acid in all varieties (53.68–67.06%), followed by oleic acid (13.80–27.32%). α-Tocopherol was identified as the predominant tocopherol form (1.597–4.703 mg kg−1), whilst β-sitosterol was the phytosterol component present at the highest level (915.67–3340.42 µg g−1). Statistically significant varietal differences were detected for most measured phytochemical parameters. Group-wise differences associated with berry skin colour and ripening stage were observed for selected traits. Overall, varietal differences appeared to be more pronounced than those associated with berry skin colour or ripening stage. It was observed that the differences in phytochemical composition between the various commercial classifications of grapes were very limited. Result: The findings reveal that the seeds of the local grape varieties studied exhibit a rich phytochemical profile and represent an important source of bioactive compounds that could be utilised, particularly in the functional food, nutraceutical and cosmetics industries. The ‘Tahannebi’ variety stood out as the one with the highest values across many parameters. Differences observed among samples of the same cultivar collected from different vineyards suggest that vineyard-specific conditions may contribute to variation in selected phytochemical traits. Future multi-year and multi-location studies are needed to confirm the stability of these phytochemical profiles and to further clarify genotype × environment interactions.
- MakaleYayıncıda açık erişim2023Scopus SJRQ3Vitamin content and MDA levels of certain white grape varieties from different altitudes in Turkey
Akbaba, Emel; Aydın, Sevinç; Sanyürek, Nesrin Karaca; Çakır, Atilla; Erişir, Figen Erdem
Grapevine (Vitis vinifera L.) is regarded as one of the world’s most important fruit crops in terms of acreage and commercial worth. Grapes are used to make not only wine but also fresh fruit, dried fruit, and juice. The quality of grapes or wine is significantly affected by environmental factors such as altitude, soil type, and climate. In this study, the 5 white grape varieties (Ağın beyazı, Tahannebi, Kabarcık, Şilfoni, and Besni) grown at different altitudes (800 m, 1000 m and 1200 m) in Turkey were investigated for their vitamin, and phytosterol concentrations as well as lipid peroxidation content. Şilfoni grape harvested at 800 m was found to possess the lowest lipid peroxidation content. High altitudes, were found to reduce lipid peroxidation contents in the Ağın beyazı, Tahannebi, and Kabarcık strains. The highest stigmasterol (98.34 μg/g), and beta-sitosterol (86.90 μg/g) concentrations were found within Şilfoni grape variety harvested at 800 m. The highest vitamin D-2 and D-3 levels were found in Ağın beyazı (1.39 μg/g) and Kabarcık (4.13 μg/g) grape varieties, both harvested at 1200 m. Kabarcık grape, however, revealed the highest concentrations of R-tocopherol (63.09 μg/g) and alpha-tocopherol (24.13 μg/g) at 1200 m within the samples. The highest vitamin K-2 level was determined within the Tahannebi grape (15.44 μg/g) from 1200 m. It was observed that the vitamin and phytosterol concentrations of white grape varieties tended to increase, while the lipid peroxidation values tended to decrease at high altitudes, especially at 1200 m. This study also exhibited a strong relationship among Vitamin D3, R-tocopherol, and alpha-tocopherol in the studied white grape cultivars.
AtıfScopus5WoS5OpenAlex3
İncele - MakaleYalnız künye2023Scopus SJRQ3Comprehensive Evaluation of the Relationships Between Grape Skin Color/Ripening Time and Antioxidative Capacity, Some Phytochemicals, and Fatty Acid Compositions of Their Seeds
Çakır, Atilla; Odabaşıoğlu, Mehmet İlhan; Karaca Sanyürek, Nesrin; Aydın, Sevinç
It has been proven that grapes, which are widely cultivated around the world, have positive health effects. However, the phytochemical composition of lesser-known local varieties of Vitis vinifera L., which has a very wide range of varieties, is still being studied. The aim of this study was to determine the effects of skin color and ripening time on the phytochemical compositions of grape seeds. As a plant material local grape varieties cultivated in Southeastern Anatolia (Turkey) were used. The results showed that grape skin color has an effect on vitamin K1, vitamin K2, vitamin D3, δ‑tocopherol, stigmasterol, ergosterol, myristic acid, oleic acid, trans-elaidic acid, and the monounsaturated fatty acid (MUFA) and saturated fatty acid (SFA) contents of seeds. The seeds of grape varieties with colored skins were richer in K2, D3, stigmasterol, oleic acid, trans-elaidic acid, and MUFAs, while the seeds of grape varieties with white skins were richer in K1, δ‑tocopherol, ergosterol, and SFAs. The ripening time of the grapes was found to have a partial effect on the fatty acid compositions of the seeds, but without any effect on linoleic acid contents. As the ripening time was delayed, there was an increase in oleic acid and MUFA contents of the seeds, while there was a decrease in SFA contents. In general, increased vitamin K1 contents of the seeds were parallel to decreases in vitamins K2, D2, and D3, as well as α‑tocopherol content and antioxidant activity. The seeds of grape varieties that have colored skins were found to have more suitable compound compositions for use in the production of functional foods that support human and animal health. In addition, it was concluded that grape berries that ripen late may be more favorable for grapeseed oil production.
AtıfScopus3WoS4OpenAlex3İncele - MakaleYalnız künye2018Elektroşok uygulamalarının aşılı asma fidanı üretiminde fidan gelişimine etkileri
Sanyürek, Nesrin Karaca; Çakır, Atilla; Söylemezoğlu, Gökhan; Odabaşıoğlu, M İlhan
Dünyanın önemli üzüm üreticisi ülkelerinden biri olan ülkemiz, bu potansiyelini asma fidanı üretimineyeterince yansıtamamaktadır. Çeşitli ekonomik nedenlerin yanı sıra kayıt dışı ve sertifikasız asma fidanıüretimi, yetkin olmayan ve teknik bilgi eksikliği olan kişilerce üretim yapılması da asma fidanı üretimimiziolumsuz etkilemektedir. Aşılı asma fidanı ile yeni tesis edilen bağlardan kısa sürede ürün elde etmekhedeflenmektedir. Asma fidanı randımanı bu noktada önem kazanmakta ve yüksek randıman elde edenfidancılık işletmeleri asma fidanı üretimini karlı bir tarımsal üretim kolu olarak görmektedirler. Günümüzdeaşılı asma fidanı üretiminde randımanı arttırmaya yönelik birçok teknik uygulanmakta ve yeni yöntemlergeliştirilmektedir. Bu çalışmada, 110R ve 1103P Amerikan asma anacı ile Trakya İlkeren ve TekirdağÇekirdeksizi üzüm çeşitleri kullanılarak oluşturulan aşı kombinasyonlarında fidan gelişimlerininarttırılmasına yönelik olarak aşılamadan önce çeliklere farklı sürelerde (kontrol–10–20 dakika) elektroşokuygulamalarının etkileri araştırılmıştır. Uygulamalara bağlı olarak aşılı çeliklerin katlama odasıperformansları ve fidanlık koşullarındaki vejetatif gelişimleri incelenmiştir. Elektroşok uygulama süresininartışına bağlı olarak katlamadan çıkarılan aşılı çeliklerin kalemlerindeki canlılık ve aşı noktasındaçepeçevre kallus oluşumunda azalış göstermiş ancak anacın dip kısmında kallus gelişiminin doğrusal olarakarttığı gözlemlenmiştir. İncelenen aşı kombinasyonları içinde en yüksek fidan randımanı (%78.95)110R/Tekirdağ Çekirdeksizi aşı kombinasyonunda 20 dakika elektroşok uygulaması sonucunda eldeedilmiştir. Her iki elektroşok uygulamasında da 110R anacının kullanıldığı aşı kombinasyonlarında fidanrandımanının kontrole göre artış göstermiş olduğu tespit edilmiştir.
AtıfTR Dizin2
İncele - MakaleYalnız künye2018Phenolic Compounds and Antioxidant Activity of some Grape Varieties Grown in Tunceli Province
Tahmaz, Hande; Sanyürek, Nesrin Karaca; Çakır, Atilla; Söylemezoğlu, Gökhan
Research on phenolic compounds found in grapes and wines has gained importance in recent years due to their antioxidative properties. Trans-resveratrol, catechin, epicatechin, quercetin and the routine are known as antioxidants, anti-inflammatory and anticarcinogenic in human health. It is found especially in red grape varieties and red wines. This situation caused a noticeable increase in the consumption of grapes and their products. In the study, varieties of grapes cultivated in Tunceli province and processed for wine were used. But the phenolic compounds of these varieties are not yet known. The scientific analysis of these varieties should be made and marketing methods should be developed. This work, human health, winemaking which a part of Anatolia, Turkey and performing of promotion worldwide is intended to contribute to the provision of increased production. For this purpose, Yusufağa, Keşpir, Ulaş Siyahı, Koşkuran, Papaz Karası which is a kind of red grapes and Hasani which is a kind of white grape varieties grown in Tunceli province, was used as plant material. Total phenolic compound, total anthocyanin and antioxidant activity levels were compared in the extracts of shells and seeds of these varieties. According to the results of the research, the highest total phenolic compound was obtained from the Papaz Karası and Ulaş Siyahı grape varieties, and the highest amount of antioxidant was obtained from the Koşkuran variety.
AtıfOpenAlex4TR Dizin7İncele - MakaleYalnız künye2017Present Status of Viticulture in Mardin, Nusaybin Province, its Problems and Possible Solutions
Sanyürek, Nesrin Karaca; Çakır, Atilla; Ay, Şilan; Karakaya, Ersin
This study was conducted in 100 vineyard enterprises representing Mardin Nusaybin district. Data are obtained by questionnaire from 100 producers. In the light of the data gathered in the study it was aimed to determine of the educational status, age, bond business conditions and the size of the organization. According to the results of the questionnaire, it was determined that the level of education for producers dealing with vineculture in that district was low (69.0 % primary school). The average age of the surveyed manufacturers 54.2 and 37 % of the vineyard area 's are found to be under 20 da. Viticulture is done as a family business in the region. All of the surveyed manufacturers vineyards "other" (except for the cordon, guyot and pergola) training system that uses rate of 58.0 % and finishing system "is recommended because it stated that they preferred. Producers are determined who are not members of the cooperatives or the union. As a result; it is necessary to take a series of measures issues such as old ties, making viticulture in arid conditions and the growing viticulture techniques known enough in the province of Nusaybin in Mardin.
AtıfTR Dizin6İncele - MakaleYalnız künye2013Sultani çekirdeksiz üzüm çeşidinin farklı amerikan asma anaçları ile aşı tutma oranının belirlenmesi
Sanyürek, Nesrin Karaca; Çakır, Atilla; Söylemezoğlu, Gökhan; Baral, Çağrı; Sidfar, Mina
Özet: Bu araştırma, Ankara Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümünde 2008 ve 2009 yılları arasında yapılmıştır. Denemede Sultani çekirdeksiz üzüm çeşidinden alınan aşı kalemleri ile 8 Amerikan asma anacı (1616C, 1103P, 140Ru, 110R, 99R, 41B, 5BB ve SO4) dan alınan çelikler kullanılmıştır. Masa başında omega aşı makinesiyle aşılama işlemi gerçekleştirilmiştir. Denemede; gözde sürme, kallus oluşumu, dip kök ve boğaz kök oluşumu tespiti yapılmıştır. 8 Amerikan asma anacı ve Sultani Çekirdeksiz üzüm çeşidinin kullanıldığı bu çalışmada boğaz kök oluşumu yüzdesi % 59.38 ile en yüksek SO4 anacında gerçekleşirken bunu % 37.50 ile 41B ve % 33.34 ile de 1616C anaçları izlemiştir. En düşük boğaz kök oluşumu ise % 13.54 ile 5BB anacında gerçekleşmiştir. Dip kök oluşumu bakımından en yüksek değer % 95.84 ile 110R anacında gözlenirken bunu % 71.88 ile 99R ve % 68.78 ile de SO4 anaçları izlemiştir. En düşük dip kök oluşumu ise % 27.09 ile 1616C anacında gerçekleşmiştir. Süren göz sayısı bakımından en yüksek değeri % 47.92 ile 41B anacında gözlenirken, en düşük süren göz % 27.08 ile 1616C anacında gerçekleşmiştir. Çepeçevre kallus oluşumu yüzdesi % 82.29 ile 5BB anacında gerçekleşirken, en düşük çepeçevre kallus oluşumu % 4.8 ile 99R anacında gerçekleşmiştir. Yapılan söz konusu çalışma sonucunda dip kök oluşumu, boğaz kök oluşumu, süren göz sayısı ve çepeçevre kallus oluşumu bakımından en yüksek değerleri uygulama sırasıyla, SO4, 110R, 41B ve 5BB Amerikan asma anaçlarından elde edilmiştir.
AtıfTR Dizin14İncele
