MODIFIKASI WARNA, TEKTUR DAN AROMA TEMPE SETELAH DIPROSES DENGAN KARBON DIOKSIDA SUPERKRITIK [The Modification of Color, Texture, and Aroma of Tempe Processed with Supercritical Carbon Dioxide]

Abstract

Supercritical carbon dioxide technology was a non thermal processing which might be applied on tempe to preserve its freshness. The aim of the research was to study the effect of supercritical CO₂ on the color and texture of tempe, and to identify the aroma of tempe after processed with supercritical CO₂. The experiment was carried out using CompletelyRandomized Block Design with three replications. The experimental factors were pressure treatmentat supercritic (Ps) and liquid (Pc), and treatment time (T) at T₁, T₂, T₃, T₄ of 5, 10, 15, and 20 minutes, respectively. The results showed that the treatment of pressures, time and their interactions significantly affected the color of ∆L*, ∆a*, ∆b*, ∆E*, but not significantly affected the textures.The best treatment was PcT₁ producing the tempe with the value of ∆L*-2.13; ∆a*0.28; ∆b*0.97 dan ∆E*0.77. Several volatile aromas of tempe were extracted due to the supercritical CO₂ treatment, but it also caused the formation of new volatile aroma compounds.