Effect of Vermicompost on Quality Index, Oxidation and Colour Ordinates of Hazelnut Oil

Year 2025, Volume: 15 Issue: 1, 79 - 87, 30.06.2025

Ali Turan

https://doi.org/10.54370/ordubtd.1633297

Abstract

The present study aims to address this knowledge gap by investigating the impact of vermicompost (3-5 kg/Ocak; VM1 and VM2, respectively) on the linolenic/linoleic acid ratio (n3/n6), polyunsaturated/monounsaturated fatty acid ratio (PUFA/MUFA), monounsaturated/unsaturated fatty acid ratio (MUFA/SFA), and oil quality index values; Atherogenicity (AI) and thrombogenicity index (TI) values, hypocholesterolemic/hypercholesterolaemic fatty acids ratio (H/H) values and stability index (SI) value; fat oxidation parameters; oleic/linoleic acid ratio (O/L), free fatty acidity value (FFA, oleic acid %), rancimate value (RV, h) and colour properties. The lowest AI value was found in the VM1 treatment (0.05), while the highest value was found in the VM2 and control (0.06) treatments. The highest H/H (16.92) and SI (7.24) values were also observed in the VM1 treatment. Conversely, the highest RV and lowest FFA values were determined in the VM2 treatment, while variability was observed in terms of colour characteristics. The application of VM2 was found to be partially more prominent in terms of some traits, and when all these data were evaluated in general, it was concluded that it is of great benefit to continue the studies on vermicompost.

Keywords

fatty acid profiles , free fatty acids , oxidation of oil

Ethical Statement

There are no ethical issues with the publication of this article.

Supporting Institution

This research was supported by Yavuz Food Industry and Trade Inc. (Giresun, Turkey).

Solucan Gübresinin Fındık Kalite İndeks Değeri, Oksidasyon ve Renk Özellikleri Üzerine Etkisi

Abstract

Bu çalışma, solucan gübresinin (3-5 kg/Ocak; sırasıyla VM1 ve VM2) linolenik/linoleik asit (n3/n6) oranı, çoklu doymamış/tekli doymamış yağ asidi oranı (PUFA/MUFA), tekli doymamış/doymamış yağ asidi oranı (MUFA/SFA) ve yağ kalite indeksi değerleri üzerindeki etkisini belirlemek amacıyla yürütülmüştür. Çalışmada, aterojenisite (AI) ve trombojenisite indeksi (TI) değerleri, hipokolesterolemik/hiperkolesterolemik yağ asitleri oranı (H/H) ve stabilite indeksi (SI) değeri ile yağ oksidasyon parametreleri; oleik/linoleik asit oranı (O/L), serbest yağ asitliği değeri (FFA, oleik asit %), ransimat değeri (RV, h) ve renk özellikleri incelenmiştir. En düşük AI değeri VM1 uygulamasında (0,05) bulunurken, en yüksek değer VM2 ve kontrol (0,06) uygulamalarında bulunmuştur. Diğer yandan en yüksek H/H (16,92) ve SI (7,24) değerleri ise VM1 uygulamasında gözlenmiştir. Buna karşılık, en yüksek RV ve en düşük FFA değerleri VM2 uygulamasında kaydedilmişken, renk özellikleri açısından uygulamalar arasında değişkenlik göze çarpmıştır. VM2 uygulamasının bazı özellikler bakımından kısmen daha ön plana çıktığı görülmüş olsa da tüm bu veriler genel olarak değerlendirildiğinde solucan gübresi ile ilgili çalışmaların devam ettirilmesinde büyük fayda olacağı sonucuna varılmıştır.

Keywords

yağ asitleri kompozisyonu , serbest yağ asitleri , yağ oksidasyonu

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