For security verification, use a UV light to check for the appearance of an image of Mount Kinabalu with the numeral 100 in blue and yellow.Banknotes, or paper money, were first used in China in the seventh century and are believed to have been developed in the eleventh century during the Song dynasty. In Europe, the concept of banknotes was introduced in the thirteenth century and first appeared in Sweden in 1661. Bank Negara Malaysia (BNM) commenced the issuance of Malaysian currency notes in June 1967 in five denominations.

The adoption of the FACS method, combined with Fourier transform infrared (FTIR) spectroscopy, was applied by BNM to analyze the chemical dataset of gelatin. This advanced method, known as chemometrics fuzzy autocatalytic set (c-FACS), has since been established and utilized in various applications, including food authentication.

It’s important to note that all four series of banknotes (except for RM500 and RM1000) are technically still legal tender. Therefore, when obtaining Malaysian currency, you may come across older series of banknotes still in circulation, leading to potential confusion, especially for visitors to Malaysia.