Design and Development of an Electronic Nose as a Tool for Detecting the Aroma Quality of Pandanwangi Rice

Abstract

Pandanwangi rice, a local aromatic variety originating from Cianjur Regency, has a distinctive pandan aroma due to the presence of the amino acid derivative compound phenylalanine, specifically 2-acetyl-1-pyrroline. Distinguishing the aroma of Pandanwangi rice is the key to identification. Electronic Nose (e-nose) technology, which is known for its ability to distinguish aromas emitted by organic materials, is an important tool in this research. The main objective of this research is to determine the design technique for an electronic nose tool, evaluate the effectiveness of the electronic nose in detecting and distinguishing the aroma of Pandanwangi rice. Descriptive analysis was carried out using Pandanwangi rice samples originating from various districts including Warungkondang, Gekbrong, Cianjur, Campaka, Cugenang, and Cibeber, as well as Sintanur rice (positive control) and IR64 (negative control). The research results show that the designed tool has the potential to detect the aroma of Pandanwangi rice quickly. In addition, the results of aroma detection using an electronic nose tool showed variations in the concentration of volatile compounds found in Pandanwangi rice. Pandanwangi rice from Cibeber District had the highest concentration of volatile compounds, while rice from Campaka District had the lowest concentration of volatile compounds.Even Sintanur rice, which is famous for its similarity and is often mistaken by the general public for Pandanwangi rice, did not receive a significant response from the censors.