Susam Kavrulmasında Farklı Mikrodalga Uygulamalarının Tahin Yağının Kalitesi ve Yağ Asidi Bileşimi Üzerine Etkisi

Ev tipi mikrodalga fırının (BKMD 1550) farklı güçlerinde (399, 665, 931, 1330 Watt) ve her güçte farklı sürelerde (3-50 dak.) ve farklı yığın yüksekliklerinde (1-2 cm) kavrulan susamlardan elde edilen tahinin kalite karakteristikleri geleneksel yöntemle üretilen örnekle karşılaştırılmıştır. Örneklerin yağ asitleri bileşimi düzenli olmamakla birlikte mikrodalga uygulamaları arasında birbirinden önemli derecede (p

Anahtar Kelimeler:

Sesamum indicum, Mikrodalga, Tahin, Yağ Asidi Bileşimi, Kalite

Influence of Different Microwave Seed Roasting Processes on the Changes in Quality and Fatty Acid Composition of Tehina (Sesame Butter) Oil

The quality characteristics of tehina prepared at different roasting powers (399, 665, 931, 1330 Watt) for different exposure periods (3-50 min.) and depths of sesame seeds (1-2 cm) using a domestic home microwave oven (BKMD 1550) were compared with those prepared in a conventional tehina sample. The fatty acid showed erratic fluctuations for all treatments and there were significant (p<0.05) differences in composition of fatty acids in tehina oils processed by microwave roasted methods. The acid value decreased with increasing roasting power between 399 and 1330 watts. A longer roasting time in each applied power resulted in more acid value; however the acid value of oil of tehina roasted in the conventional method was much less than the acid value of oil of tehina roasted through microwave treatments. The acid value of oil from microwave roasted seeds occurred in relation to increasing the depth of seeds in a dish from 1 cm to 2 cm. There was no pronounced difference in peroxide value for the oils of tehina from seeds roasted using different powers of the microwave oven or roasted conventional methods. The peroxide value was erratically affected by the powers of the microwave oven. The peroxide value increased (p<0.05) with longer roasting and storage, but increases were more pronounced during the first two weeks of storage.

Keywords:

Sesamum indicum, microwave, tehina, fatty acid composition, quality,

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