Overall precision test of near infrared spectroscopy on mango fruits (Mangifera indica CV. 'Nam Dok Mai Si Thong') by on-line and off-line systems

Lekhawattana, Wachiraya; Sirisomboon, Panmanas

doi:10.1051/e3sconf/202018704006

Overall precision test of near infrared spectroscopy on mango fruits (Mangifera indica CV. 'Nam Dok Mai Si Thong') by on-line and off-line systems

Author(s)

Lekhawattana, Wachiraya

Sirisomboon, Panmanas

Date Issued

September 8, 2020

Type

Conference Paper

DOI

10.1051/e3sconf/202018704006

Abstract

The near infrared (NIR) spectroscopy both on-line and off-line scanning was applied on mango fruits (Mangifera indica CV. 'Nam dok mai-si Thong') for the overall precision test. The reference parameter was total soluble solids content (Brix value). The results showed that the off-line scanning had a higher accuracy than on-line scanning. The scanning repeatability of the off-line and on-line systems were 0.00199 and 0.00993, respectively. The scanning reproducibility of the off-line and online systems were 0.00279 and 0.00513, respectively. The reference of measurement repeatability was 0.2. The maximum coefficient of determination (R2max) of the reference measurement was 0.894.

Citation

E3s Web of Conferences, 187, 2020