Investigation on vinegar as preservative in materials for brain phantom

Gelatin-based material is mostly used in the phantom modeling for microwave imaging application unfortunately, this kind of phantom has short lifetime. Formaldehyde has been used to preserve gelatin-based material but it might be hazardous in certain condition. This paper presents the investigation on vinegar for its suitability as preservative in phantom material study, which observed through dielectric measurement that is performed from 1 to 6 GHz. Several types of vinegar have been used in the investigation. The study focuses on characteristic of vinegar with different ingredients, temperature and water contains. The obtained results in this study are useful to verify the suitability of vinegar to be used as preservative in gelatin-based material for the development of realistic human head phantom.