PENENTUAN BAHAN KERING BUAH SAWO SECARA TIDAK MERUSAK MENGGUNAKAN NIR SPECTROSCOPY
ABSTRACT: This work was
conducted to develop a new measuring system for nondestructive dry matter
prediction in sawo fruit using short wavelength near infrared (SW-NIR)
spectroscopy. In this research, a number of 100 sawo fruits were used as
samples. Spectra were acquired using a portable spectrometer (VIS-NIR USB4000,
The Ocean Optics, USA) with 100 ms integration time and 50 scans for number of
scanning. Dry matter was measured using oven drying. The calibration and
validation model was developed using the partial least squares (PLS) regression
method. The result showed that the best calibration model could be developed
for original spectra in the wavelength range of
700-990 nm with F= 8, r = 0.92, SEC = 0.68 and SEP = 0.86.
Keywords: Absorbance mode, dry matter, nondestructive
method, sawo fruit, SW-NIR spectroscopy
Penulis: Diding Suhandy
Kode Jurnal: jppertaniandd080027
