Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Argın, Sanem(1)
- Atukeren, Pinar(1)
- Bayram, Sinan(1)
- Cakir, Ozlem(1)
- Citgez, Bulent(1)
- Demircioglu, Mahmut Kaan(1)
- Demircioglu, Zeynep Gul(1)
- Ecem Bayram, Nesrin(1)
- Erdogan, Ummugulsum(1)
- Gerçek, Yusuf Can(1)
- Gulcicek, Osman Bilgin(1)
- Kocaman, Ayhan(1)
- Ozguven, Muveddet Banu Yilmaz(1)
- Sagdiç, Osman(1)
- Tanugur Samanci, Asli Elif(1)
- Turan, Metin(1)
- Yanar, Karolin(1)
- Yasin Demirci(1)
- Yavuz, Aysegul(1)
- Yazici, Pinar(1)
- Çebi, Nur(1)
- Çelik, Saffet(1)
- Özkök, Asli(1)
Yayınlar
- MakaleYalnız künye2024Synergistic Strategies for Overcoming Salt Stress in Strawberry Farming: The Use of Organic Fertilizers and Plant Growth Promoting Rhizobacteria (PGPR)
Yavuz, Aysegul; Erdogan, Ummugulsum; Turan, Metin; Argın, Sanem; Kocaman, Ayhan
The study was carried out under salt-stress conditions, and three non-microbial commercial organic fertilizers purchased from Humintech GmbH (Grevenbroich, Germany) were applied to the soil for strawberry plants. The three promoters were Fulvagra®, based on fulvic acid, Liqhumus®, based on humic acid, and Microsense Root®, also based on humic acid. Treatment with Fulvagra® resulted in a remarkable 69.90% increase in average fruit weight and a 39.52% increase in yield in strawberry plants. These improvements remained significant when combined with plant growth promoting rhizobacteria (PGPR), resulting in a 61.81% increase in fruit weight and a 45.21% increase in yield. Liqhumus® treatment resulted in a significant 49.95% increase in fruit weight and a 39.30% increase in fruit yield. The introduction of PGPR further enhanced these effects by increasing fruit weight by 87.70% and yield by 63.84%. The Microsense Root® treatment showed 31.07 and 61.87% improvements for the respective parameters. In conjunction with this treatment, the use of PGPR produced the most significant results, with increases of 121.14 and 65.37% for respective parameters. These results indicate that the combined use of non-microbial commercial organic fertilizers with PGPR leads to higher efficiency and is promising for sustainable agricultural practices, particularly in improving the resistance of strawberry plants to salt-induced stress.
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İncele - MakaleYayıncıda açık erişim2024Scopus SJRQ3Antioxidant effect of Rosa pimpinellifolia L. fruit extract on cholestatic liver injury: an experimental study
Demircioglu, Mahmut Kaan; Demircioglu, Zeynep Gul; Cakir, Ozlem; Yanar, Karolin; Ozguven, Muveddet Banu Yilmaz; Atukeren, Pinar; Gulcicek, Osman Bilgin; Citgez, Bulent; Yazici, Pinar
BACKGROUND: Antioxidants have been considered a rational curative strategy to prevent and cure liver diseases involving oxidative stress. An acute obstructive jaundice rat model was established to investigate the in vivo hepatoprotective efficacy of Rosa pimpinellifolia L. METHODS: The experimental jaundice model was performed by binding the main bile duct in 25 male Sprague-Dawley rats. All rats were randomly divided into five groups: first group: laparotomy-sham-only, second group: biliary tract binding (control), and third, fourth, and fifth groups: treatment groups with 250, 500, and 750 mg/kg fruit extracts daily, respectively. RESULTS: Considering dosage, although there was no significant therapeutic effect in the 250 mg/kg of Rosa pimpinellifolia L. group, the best results were found in the 500 mg/kg dose group, while results in the 750 mg/kg dose group showed consistent correlation with proinflammatory response. With regard to biochemical parameters, lipid hydroperoxide level in the rat serum and liver tissue was significantly decreased in all treatment groups. Amadori products, which are one of the early markers of glycol-oxidative stress, showed statistical significance in the treatment. CONCLUSION: It was revealed that the antioxidant effect of Rosa pimpinellifolia L. was more prominent in the early stages of hepatic injury secondary to oxidative stress.
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İncele - Yüksek Lisans TeziAçık Erişim2022Sülfonil hidrazon türevlerinin sentezi ve biyolojik aktivitelerinin incelenmesi
Yasin Demirci
Hidrazonlar, kimyasal reaktiviteleri ve sentetik çalışmaları ile 1894 yılından bu yana modern yöntemlerle üstünde kapsamlı bir şekilde çalışılan önemli organik bileşik gruplarıdır. Organik sentez, biyokimya, antitümöral ve antimikrobiyal gibi çeşitli biyolojik alanlarda olduğu kadar supramoleküler kimya gibi analitik alanlarda da önemli aktiviteleri vardır. Hidrazon türevleri, organik kimyada çok yönlü bir bileşik sınıfını oluşturur. Bu yapılar birbirine bağlı iki nitrojen atomu ve terminal nitrojen atomunun yalnız elektron çiftiyle konjuge edilmiş bir C=N çift bağını içerir. Sülfonil hidrazonlar ise sülfonil hidrazit türevlerinin, sentetik olarak elde edilen açillenmiş aldehit bileşikleri ile asit katalizli kondenzasyon reaksiyonu sonucunda elde edilmektedir. Sülfonil hidrazonlar enzimatik modülasyon, analjezik, antifungal ve potansiyel antibakteriyel gibi farmakolojik etkileri ile iyi bilinirler. Buna ilaveten, anti-alzheimer, antidepresan, antineoplastik aktivite ve antidiyabetik ajanlar olarak da hareket edebilirler. Bu tez çalışmasında yapısında para pozisyonunda brom, flor ve metoksi gibi substituentler ihtiva eden aromatik sülfonil klorür bileşikleri düşük sıcaklıkta hidrazin reaktifi ile muamele edilerek 4 farklı sülfonil hidrazit bileşiği elde edilecektir. Daha sonra bu sülfonil hidrazit türevleri, sentetik olarak vanilin bileşiğinden elde edilen açillenmiş aldehit bileşikleri ile asit katalizli kondenzasyon reaksiyonuna tabi tutulacaktır. Bu reaksiyon sonucunda 15 tane hedef bileşiğin sentezi gerçekleştirilmiş olacaktır. Ayrıca 1H-NMR, 13C-NMR, FT-IR ve HRMS gibi spektroskopik analizler kullanılarak bu hedef bileşiklerinin yapısı aydınlatılacaktır. Daha sonra bu bileşikler biyolojik uygulamalar için kullanılacaktır. Anahtar Kelimeler: Hidrazon bileşikleri, sülfonil hidrazon türevleri, biyolojik aktivite, antioksidan, heterosiklik bileşik
- MakaleAçık Erişim2021Scopus SJRQ2Turkish royal jelly: amino acid, physicochemical, antioxidant, multi-elemental, antibacterial and fingerprint profiles by analytical techniques combined with chemometrics
Ecem Bayram, Nesrin; Çebi, Nur; Çelik, Saffet; Gerçek, Yusuf Can; Bayram, Sinan; Tanugur Samanci, Asli Elif; Sagdiç, Osman; Özkök, Asli
Royal jelly is one of the most remarkable commercial bee products used in cosmetics, medicine, and as a dietary supplement. This study aimed to determine some quality parameters (amino acid, multi-elemental, total phenolic-flavonoid, 10-HDA, sugar, and moisture content) as well as antioxidant and antimicrobial activities of different royal jelly samples (domestic and non-domestic samples). In this study, royal jelly samples exhibited high antioxidant and antimicrobial activity. 10-HDA values were found to be higher in domestic royal jelly samples (2.17-2.71%) compared to non-domestic samples (0.31-1.71%). Also, it was found that the acidity value varied between 2.57-3.37 mL 0.1 N NaOH/g and 3.87-4.97 mL 0.1 N NaOH/g in non-domestic and domestic royal jelly samples, respectively. L-Proline was the amino acid with the highest rate of occurrence in both domestic (21972.39-35053.00 nmol/g) and non-domestic (19688.31-21711.50 nmol/g) samples. It was determined that the new method developed for amino acid analysis has many advantages over other methods. Chemometrics of principal component analysis (PCA) showed that amino acid profile, elemental profile, and chemical parameters were capable of presenting characteristic and descriptive properties of royal jelly samples. In addition to these findings, Raman spectroscopy combined with chemometrics of hierarchical cluster analysis (HCA) was successfully used to distinguish domestic and non-domestic royal jelly samples. The obtained results will provide an important basis for subsequent research on the evaluation of the amino acid content, physicochemical properties, phenolic content, and the antioxidant and elemental profile of royal jelly.
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