Development of calibration model for pH content of intact tomatoes using a low-cost Vis/NIR spectroscopy. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Wati, R K; Pahlawan, M F R; Masithoh, R E
• Is Part Of: IOP conference series. Volume 686:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: pH -- tomato -- Vis/NIR -- spectroscopy -- PLSR; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/686/1/012049
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Determination of pH of intact tomatoes was investigated using a low-cost Vis/NIR spectroscopy in reflectance mode. The best calibration model measured pH in intact tomatoes using wavelength range of 527-799 nm with RC 2 and SEC of 0.90 and 0.04, respectively. The prediction model obtained SEP, Bias, and RPD of 0.11, 0.007, and 1.17, respectively. The low-cost Vis/NIR type instrument is promising to be used for food and agricultural applications.