DOI: https://doi.org/10.5424/fs/2010192-01313

Abstract: Using linear regression techniques, different regression models of the type Log10(Log10(R)+1)=a.h+b were derived to describe the relationship between the log of the electrical resistance (measured using pin electrodes) and the moisture content of two types of cork stoppers (natural [N] and agglomerate [AG]). The results obtained show that, using the models proposed, the moisture content of AG cork stoppers can be estimated with an error of ±0.3%, while that of N stoppers can be estimated with an error of 0.5%. The moisture content of cork stoppers could therefore be measured at the industrial scale using electrical resistance-type moisture meters. Neither the geographical origin of the N corks nor the surface treatment to which the AG corks were subjected significantly affected the proposed models.