Use of Yeast-Based Zinc Oxides in Food Dye Removal

Öz

In the present study, zinc oxide (ZnO) nanoparticles were synthesized by green synthesis method using aqueous extract of Yarrowia lipolytica (yeast). X-ray diffraction (XRD) patterns and thermo gravimetric analysis confirmed the formation of well-crystallized ZnO nanoparticles using zinc sulfate solution (0.1 M) and yeast extract at 2:1 volume ratio at pH 12. The synthesized ZnO nanoparticles (1 h reaction time and pH 7) were used to remove amaranth food dye from an aqueous solution and the adsorption processes were investigated. The quantity of dye adsorbed per unit mass of adsorbent increased with rising initial dye concentration, resulting in enhanced dye removal efficiency. The maximum degradation efficiency was obtained using 1 g of ZnO per liter. The synthesized ZnO nanoparticles were an environmentally friendly and efficient method due to their unique properties, good adsorption capacity of 75% and synthesis without using chemical solvents.

Anahtar Kelimeler

• Yarrowia lipolytica
• Food dye treatment
• Green synthesis

Maya Bazlı Çinko Oksitlerin Gıda Boyası Gideriminde Kullanımı

Öz

Mevcut çalışmada, Yarrowia lipolytica'nın (maya) sulu özütü kullanılarak yeşil sentez yöntemiyle çinko oksit (ZnO) nanopartikülleri sentezlenmiştir. X-ışını kırınımı (XRD) desenleri ve termogravimetrik analizler pH 12'de 2:1 hacim oranında çinko sülfat çözeltisi (0,1 M) ve maya özütü kullanılarak, iyi kristalleşmiş ZnO nanopartiküllerinin oluşumunu doğrulamıştır. Sentezlenen ZnO nanopartikülleri (1saatlik reaksiyon süresi ve pH 7), sulu bir çözeltiden amarant gıda boyasını uzaklaştırmak için kullanılmış ve adsorpsiyon süreçleri incelenmiştir. Adsorbanın kütlesi başına adsorbe edilen boya kütlesi, başlangıç boya konsantrasyonunun artırılmasıyla büyümüş ve daha çok boya giderim verimi elde edilmiştir. Maksimum bozunma verimliliği, litre başına 1g ZnO kullanılarak elde edilmiştir. Sentezlenen ZnO nanopartiküller, özgün özellikleri ve %75’lik iyi adsorpsiyon kapasitesi ve kimyasal çözücüler kullanılmadan gerçekleştirilen sentezi sayesinde çevre dostu ve verimli bir yöntem olmuştur.

Anahtar Kelimeler

• Yarrowia lipolytica
• Gıda boyası giderimi
• Yeşil sentez

Kaynakça

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