Abstract
Liquid smoke has a strong and distinctive aroma caused some contributors compounds in these products, among others, phenolic, carbonyl and acid. Adsorption using zeolites in this study aimed to reduce the levels of aroma compounds contributors so that liquid smoke can be accepted by consumers. Various pH zeolite ie 2, 3, 4, 5 and 6 are used as adsorbent liquid smoke where the fraction of adsorption results sensory analyzed by 20 panelists selected. Liquid smoke fraction was selected based on the results of sensory testing further analyzed using GC-MS and then analyzes the data using analysis of variance (ANOVA) with SPSS software version 16, followed by Duncan range test level of 1%. The results showed that as many as 14 fractions were tested for sensory worth of 25 fractions of liquid smoke coconut shell results in zeolite adsorption pH 2-6 where 11 other factions have a scent that is hard and pungent. Contributors to the volatile aroma compounds in the liquid smoke by GC-MS assay include phenolic groups, carbonyl and acid. Adsorption coconut shell liquid smoke using zeolite effectively reduced the smell hard pungent of the product. Necessary to evaluate the shelf life of liquid smoke zeolite adsorption results. Key Words : Adsorption, aroma, coconut shell, liquid smoke, zeolite.
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