EVALUATION OF BIOACCESSIBILITY OF PHENOLIC COMPOUNDS IN MELON SEED SHERBET (SUBYE)

Öz

Subye is a traditional cold drink prepared with melon seeds, sugar and water. The aim of this study was to investigate the food matrix effect on the bioaccessibility of phenolic compounds by determining the changes in total phenolics and total antioxidant capacity of subye formulations prepared with sugar/sweetener, using an in vitro model mimicking the digestion in the mouth, stomach and intestine. The results showed that presence of sugar in subye formulations increases the bioaccessibility of total phenolics (42–64%) (P <0.05) and total antioxidant capacity (13–172%). Although bioaccessibility of phenolics and antioxidants increased in most of the beverages prepared with sweetener (80% and 16-62%, respectively), for some formulations presence of sweetener did not induce a significant effect on the bioaccessibility of total phenolics and total antioxidant capacity. Overall, the findings obtained in this study pointed out that in general presence of sugar/sweetener positively affects the bioaccessibility of phenolics.

Anahtar Kelimeler

• Cucumis melo L.
• Plant-based milk
• In Vitro Digestion
• Food Matrix
• Total Phenolic Content
• Total Antioxidant Capacity

KAVUN ÇEKİRDEĞİ ŞERBETİNDE (SÜBYE) FENOLİK BİLEŞİKLERİN BİYOERİŞİLEBİLİRLİĞİNİN DEĞERLENDİRİLMESİ

Öz

Sübye; kavun çekirdekleri, şeker ve su ile hazırlanan geleneksel bir soğuk içecektir. Bu çalışmada ağız, mide ve bağırsaktaki sindirimi taklit eden in vitro bir model kullanılarak şeker ve tatlandırıcı ile hazırlanan sübye formülasyonlarında toplam fenolik madde ve toplam antioksidan kapasitedeki değişimlerin belirlenerek gıda matrisinin fenolik bileşiklerin biyoerişilebilirliğine olan etkisinin araştırılması amaçlanmıştır. Elde edilen sonuçlar sübye formülasyonlarında şeker ilavesinin toplam fenolik madde (%42–64) (P <0.05) ve toplam antioksidan kapasite (%13–172) biyoerişilebilirliğini arttırdığını göstermiştir. Tatlandırıcı ile hazırlanan sübye formülasyonlarında ise içeceklerin büyük kısmında fenolik bileşik (%80) ve antioksidanların (%16–62) biyoerişilebilirliği artmakla beraber bazı formülasyonlarda tatlandırıcının toplam fenolik madde ve toplam antioksidan kapasite biyoerişilebilirliği açısından önemli düzeyde bir etkisinin olmadığı görülmüştür. Sonuç olarak, bu çalışmada elde edilen bulgular şeker veya tatlandırıcı varlığının fenolik bileşiklerin biyoerişilebilirliğini genel anlamda olumlu yönde etkilediğine dikkat çekmiştir.

Anahtar Kelimeler

• Cucumis melo L.
• Bitki Bazlı Süt
• İn Vitro Sindirim
• Gıda Matrisi
• Toplam Fenolik Madde
• Toplam Antioksidan Kapasite

Kaynakça

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