PTR-MS Tekniğinin Gıda Analizlerinde Kullanımı

Gıda bilimi ve teknolojisi alanında uçucu organik bileşikler önemli bir konu başlığını teşkil etmektedir. Bu bileşikler gıdanın lezzetini oluşturan maddelerdir. Lezzet bileşenlerinin hızlı tespiti ürün kalitesinin tespitini, temel ve endüstriyel işlemlerin izlenmesini kolaylaştırmaktadır. Proton Transfer Reaksiyonu-Kütle Spektrometresi (PTR-MS) teknolojisi uçucu organik bileşiklerin gerçek-zamanlı olarak ölçümünü sağlamaktadır. İşlemin prensibi, çok sayıda uçucu organik bileşik ile H3O+ iyonlarının reaksiyonuna dayanmaktadır fakat bu iyonlar temiz havadaki hiçbir bileşik ile reaksiyona girmemektedir. PTR-MS sağlık, çevre ve gıda analizlerinde kullanılmaktadır. Bu çalışmada, PTR-MS’in gıda araştırmalarında kullanımı meyve, sebze, zeytinyağı, tereyağı, peynir, şarap, kahve ve et örneklerinde yapılan çalışmalar ile tartışılmıştır. Bu derlemede öncelikle PTR-MS’in genel çalışma prensibinden ve kullanım alanlarından bahsettikten sonra, gıda analizlerinde PTR-MS’in kullanımı anlatılmıştır.

Anahtar Kelimeler:

proton transfer reaksiyonu-kütle spektrometresi, PTR-MS, gıda, uçucu organik bileşik

Application of PTR-MS Technique for Food Analyses (Turkish with English Abstract)

Volatile organic compounds are a major topic in food science and technology. These compounds form the flavor of foods. Their fast, non-invasive detection helps to control product quality and to monitor fundamental and industrial processes. Proton Transfer Reaction – Mass Spectrometry (PTR-MS) technology enables real-time measurement of volatile organic compounds. The method is based on reactions of H3O+ ions with most of the common volatile organic compounds (VOCs) but do not react with any of the components present in clean air. PTR-MS is applied in medical, environmental and food researches. Examples of food research are discussed on the basis of VOC emissions from fruit, vegetable, olive oil, butter, cheese, wine, coffee and meat. After introducing the principles and application areas of PTR-MS, we reviewed its applications in food science and technology.

Keywords:

proton transfer reaction-mass spectrometer, PTR-MS, food, volatile organic compounds,

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