Efficacy of Green-Synthesized Calcium Nanoparticles from Sideritis pisidica on Postharvest Quality of ‘Ağın Beyazı’ Grape Berries

Muharrem Ergun; Nazan Ergun; Bülent Kaya; Esra Balkîs

doi:10.18016/ksutarimdoga.vi.1703766

TR EN

Sideritis pisidica Kullanılarak Yeşil Sentezlenmiş Kalsiyum Nanopartiküllerinin ‘Ağın Beyazı’ Üzümlerinin Hasat Sonrası Kalitesi Üzerine Etkinliği

Öz

Araştırma, önce Sideritis pisidica yaprağı ekstresinden yeşil sentez yöntemiyle elde edilecek kalsiyum bazlı nanoparçacıkların (SPNP'ler) sentezini ve karakterizasyonunu, daha sonra bu nanoparçacıkların 'Ağın Beyazı' üzüm meylerinin muhafazası için hasat sonrası kullanımını amaçlamıştır. S. pisidica, özellikle Türkiye'nin güneybatısında yetişen, antioksidan ve antimikrobiyal fitokimyasallara sahip, yeşil nanopartikül sentezi için uygun tıbbi ve aromatik bir bitki özelliği taşımaktadır. Sentezlenen SPNP'ler, UV-görünür ve FTIR spektroskopisi kullanılarak karakterize edilmiştir. Üzüm taneleri 25, 50 ve 100 mg L-1 konsantrasyonlarındaki SPNP çözeltileri ile muamele edilerek 4 °C’de 20 gün süre ile muhafaza edilmiştir. Muhafaza esnasında meyve sertliği, solunum hızı, toplam çözünür kuru madde, titre edilebilir asitlik, pH ve renk gibi fizikokimyasal özellikleri izlenmiştir. SPNP uygulamaları sertlik, pH, asitlik ve toplam çözünür kuru madde üzerinde belirgin bir etki göstermemiştir. Ancak 100 mg L-1 nanopartikül uygulaması, muhtemelen kalın veya yoğun SNPS kaplamasından kaynaklanan artan metabolizma olayları nedeniyle, muhafazanın sonlarına doğu solunum oranlarına bir yükselişe neden olmuştur. Bu arada, aynı uygulama, muhafazanın sonlarında doğru daha fazla sarı renk gelişiminin (b*) baskılanmasına yol açarak renk maddelerinin bozulmasına veya birikimine karşı koruma sağlayabilmiştir. Genel olarak, SPNP’ler üzüm tanelerinin yapısal ve kimyasal bileşimi üzerinde sınırlı etkide bulunmuş, ancak renk koruma üzerindeki belirgin etkileri bunların bir çevre dostu hasat sonrası uygulaması olarak değerlendirilebilme potansiyelini ortaya koymuştur.

Anahtar Kelimeler

Efficacy of Green-Synthesized Calcium Nanoparticles from Sideritis pisidica on Postharvest Quality of ‘Ağın Beyazı’ Grape Berries

Abstract

The research aimed first the synthesize and characterize calcium-based nanoparticles (SPNPs) obtained from Sideritis pisidica leaf extract by green synthesis method, and then the post-harvest use of these nanoparticles for the preservation of ‘Ağın Beyazı’ grape berries. S. pisidica is a medicinal and aromatic plant that grows especially in southwestern Türkiye and possesses antioxidant and antimicrobial phytochemicals, qualifying it for green nanoparticle synthesis. The synthesized SPNPs were characterized by UV-visible and FTIR spectroscopy. The grapes were treated with SPNPs (25, 50, 100 mg L-1) and stored at 4 °C for 20 days. Physicochemical parameters, including firmness, respiration, total soluble solids, acidity, pH, and color, were measured during storage. SPNPs did not significantly affect firmness, pH, acidity, or total soluble solids content but did affect respiration and color retention. The 100 mg L-1 SPNP treatment led to higher respiration rates in the later storage phase, possibly due to increased metabolism from the thick or dense SNPS coating. Meanwhile, the treatment also led to a suppression of further yellow color development (b*) at a later stage of storage, thereby indicating protection against pigment degradation or accumulation. Overall, SPNPs had a limited impact on the structural and chemical composition of grape berries, but their significant effect on color retention suggested their potential as an environmentally friendly postharvest application.

Keywords

References

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Details

Primary Language

English

Subjects

Post Harvest Horticultural Technologies (Incl. Transportation and Storage)

Journal Section

Research Article

Authors

Muharrem Ergun ^*
0000-0002-0213-1245
Türkiye

Nazan Ergun
0000-0001-9338-2770
Türkiye

Bülent Kaya
0000-0002-1216-6441
Türkiye

Esra Balkîs
0000-0002-7148-2145
Türkiye

Early Pub Date

February 8, 2026

Publication Date

February 8, 2026

Submission Date

May 22, 2025

Acceptance Date

October 9, 2025

Published in Issue

Year 2026 Volume: 29 Number: 3

DOI

https://doi.org/10.18016/ksutarimdoga.vi.1703766

IZ

https://izlik.org/JA55BE46XZ

Cite

RIS / Bibtex

APA

Ergun, M., Ergun, N., Kaya, B., & Balkîs, E. (2026). Efficacy of Green-Synthesized Calcium Nanoparticles from Sideritis pisidica on Postharvest Quality of ‘Ağın Beyazı’ Grape Berries. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, 29(3), 586-598. https://doi.org/10.18016/ksutarimdoga.vi.1703766