Universiti Teknologi Malaysia Institutional Repository

Lauric acid as antimicrobial agent in k-carrageenan based antimicrobial film

A., Siti Mariam and Salleh, Eraricar and Khairuddin, Nozieana and A. R., Mohd. Redza and Muhamad, Ida Idayu (2007) Lauric acid as antimicrobial agent in k-carrageenan based antimicrobial film. In: 10th ASEAN Food Conference 2007, August 21-23, Kuala Lumpur, Malaysia.



Food spoilage commonly caused by bacteria and fungi. The modifying of packaging could prevent and reduce this spoilage problem. Active packaging is one type of packaging that could extend the shelf-life of food. Antimicrobial food packaging is one of the most promising concepts of active packaging by adding antimicrobial agent as a function to reduce, inhibit or retard the growth of microorganism. In developing an antimicrobial packaging, it is necessary to identify the best antimicrobial agent and its compatibility in the film formation. This study has been carried out to investigate the potential of Lauric acid as an antimicrobial agent when incorporated into k-carrageenan-based film. The best formulation for antimicrobial film was studied and the performance of the antimicrobial agent was determined by inhibition growth study i.e. agar plate test and minimally inhibition concentration (MIC) test. The resultant antimicrobial film was formed with good clarity, appearance and flexibility. The results showed that the antimicrobial film can significantly inhibit the growth activity of B.subtilis. The increment of concentration is proportional to the inhibition of growth. However, the best concentration of Lauric acid is 0.375x10-2 M for optimum film properties and antimicrobial activity.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Antimicrobial agent, antimicrobial film, k-carrageenan, lauric acid
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5524
Deposited By: Norhani Jusoh
Deposited On:06 May 2008 11:05
Last Modified:01 Jun 2010 15:31

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