Kayısı Çekirdeğinin Besinsel ve Biyoaktif Bileşimi: Yağ Asitleri, Tokoferoller, Fenolikler

Yıl 2025, Cilt: 3 Sayı: 2, 91 - 98, 01.10.2025

Deniz Günal Köroğlu , Ali Topcu , Semra Turan

Öz

Bu çalışmada kayısı çekirdeklerinin temel bileşimi, mineral profili, şeker ve organik asit içerikleri, fenolik bileşenler ve lipid fraksiyonu incelenmiştir. Çekirdekler %3,00 nem, %2,71 kül, %20,26 ham protein, %20,95 diyet lifi ve %51,60 ham yağ içermekte olup, besin açısından zengin bir kaynak olma potansiyelini göstermektedir. Mineral analizinde potasyum, fosfor ve magnezyum yüksek düzeyde bulunmuş, eser elementler tespit edilmiş, toksik ağır metaller ise ölçüm sınırının altında kalmıştır. Şeker profilinde sukroz (41,02 mg/g) baskın olup, glikoz, fruktoz ve sorbitol de belirlenmiştir. Malik asit (15,09 mg/g) ve sitrik asit (8,97 mg/g) başlıca organik asitler olarak öne çıkmıştır; ayrıca kayısı çekirdeklerinde kayda değer miktarda C vitamini ve B grubu vitaminler de tespit edilmiştir. HPLC analizi, protokateşik, kafeik, p-kumarik ve ferulik asitler gibi fenolik asitlerin varlığını ortaya koymuştur. Lipid fraksiyonu, özellikle oleik (%61,43) ve linoleik asitler (%34,77) açısından zengin, doymuş yağ asitleri ise düşük seviyededir. Tokoferol analizleri, γ-tokoferolün baskın olduğunu (432,17 mg/kg) göstermiş ve yağın antioksidan değerini desteklemektedir. Genel olarak, kayısı çekirdekleri lipidler, proteinler, mikro besinler ve biyoaktif bileşenler açısından değerli bir kaynak olup, beslenme ve fonksiyonel gıda uygulamaları için yüksek potansiyele sahiptir.

Anahtar Kelimeler

Fonksiyonel gıda , yağ asidi , tokoferoller , fenolik bileşikler , organik asit

Nutritional and Bioactive Composition of Apricot Kernel: Fatty Acids, Tocopherols, and Phenolics

Öz

The present study investigated the proximate composition, mineral profile, sugar and organic acid contents, phenolic compounds, and lipid fraction of apricot kernels. The kernels contained 3.00% moisture, 2.71% ash, 20.26% crude protein, 20.95% dietary fiber, and 51.60% crude oil, indicating their potential as a rich source of nutrients. Mineral analysis revealed high levels of potassium, phosphorus, and magnesium, alongside trace elements, while toxic heavy metals were below detection limits. The sugar profile was dominated by sucrose (41.02 mg/g), with glucose, fructose, and sorbitol also present. Malic (15.09 mg/g) and citric acids (8.97 mg/g) were the main organic acids, while significant amounts of vitamin C, and B-complex vitamins, were detected. HPLC analysis identified phenolic acids including protocatechuic, caffeic, p-coumaric, and ferulic acids. The lipid fraction was rich in unsaturated fatty acids, primarily oleic (61.43%) and linoleic acids (34.77%), with low saturated fatty acids. Tocopherol analysis showed γ-tocopherol as predominant (432.17 mg/kg), supporting the antioxidant value of the oil. Overall, apricot kernels represent a valuable source of lipids, proteins, micronutrients, and bioactive compounds with nutritional and functional potential.

Anahtar Kelimeler

Functional food , fatty acid , tocopherols , phenolic compounds , organic acid

Kaynakça

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