Abstract
This research aims to develop white bread shelf-life extension sachet with controlled release of antimicrobial agent prepared from multicomponent bio-based materials. The structure of antimicrobial sachet consists of two major parts i.e., controlled release part and active part. The first part produced from paper coated with ethylene vinyl alcohol (EVOH). The second one was an active part which produced from biodegradable poly(butylene succinate) (PBS) and geraniol essential oil blend. Inhibition clear zone test results showed that a suitable geraniol concentration, encapsulated in PBS, was 10 wt%. Based on the water vapor transmission test, coating paper with EVOH for three times (around 450 μm) was an optimal condition for the use as a controlled release part. Release test indicated that geraniol migration concentration increased with increasing the relative humidity (RH) in the package which correlated to the moisture liberated from bread slice. Shelf-life extension study informed that the spoilage of bread stored with antimicrobial sachet was delayed by more than three weeks. In summary, this antimicrobial sachet could be used in food shelf-life extension purpose which easily placed in any food container. This is an alternative way of food waste minimization.
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