PHYSICOCHEMICAL ANALYSIS OF SUNFLOWER HONEY FROM BULGARIA

Abstract

Physicochemical properties of 27 sunflower honey samples from Bulgaria were investigated. The botanical origin of the samples was ascertained by pollen analysis. The honey samples displayed relative frequencies of Helianthus annuus L. pollen up to 41%. The ranges for water content (15.60–19.30%), reducing sugars (72.51–80.80%), sucrose (0.50–3.70%), diastase (9.00–20.80 Gothe units), hydroxymethylfurfural (HMF), (0.69–12.40 mg/kg), total acidity (17.70–36.00 meq/kg), electrical conductivity (0.23–0.48 mS/cm), proline (218.50 – 679.50 mg/kg), specific rotation (-20.20–(-12.30)) [α]D20 were obtained. The results obtained also suggest that these honey samples are of good quality. The results are in agreement with standards of quality established by national and international regulations. Significant moderate correlation between electrical conductivity and specific rotation was found (r=0.582, p<0.05).

Keywords

• honey
• Sunflower honey
• physicochemical properties
• quality parameters

Bulgaristan Ayçiçek Ballarının Fiziko-Kimyasal Analizi

Abstract

Bulgaristan'dan alınan 27 ayçiçeği balı örneğinin fiziko-kimyasal özellikleri araştırıldı. Örneklerin botanik kökeni polen analizi ile belirlendi. Bal numuneleri, %41'e varan oranlarda Helianthus annuus L. polen sıklığı göstermiştir. Su içeriği (%15.60 – 19.30), indirgeyici şekerler (%72.51 – 80.80), sakaroz (%0.50 – 3.70), diastaz (9.00 – 20.80 Gothe birimleri), hidroksimetilfurfural (HMF), (0.69 – 12.40mg/kg) için aralıklar), toplam asitlik (17.70 – 36.00meq/kg), elektriksel iletkenlik (0.23 – 0.48 mS/cm), prolin (218.50 – 679.50 mg/kg), spesifik rotasyon (-20.20 – (-12.30)) [α]D20 elde edildi. Elde edilen sonuçlar da bu bal örneklerinin kaliteli olduğunu göstermektedir. Sonuçlar, ulusal ve uluslararası düzenlemeler tarafından belirlenen kalite standartları ile uyumludur. Elektriksel iletkenlik ile özgül rotasyon arasında orta düzeyde anlamlı korelasyon bulundu (r=0,582, p<0,05).
Anahtar Kelimeler: Bal, ayçiçeği balı, fiziko-kimyasal özellikler, kalite parametreleri,

Keywords

• Bal
• ayçiçeği balı
• fiziko-kimyasal özellikler
• kalite parametreleri

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