Combination of NIR spectroscopy and machine learning for monitoring chili sauce adulterated with ripened papayaRavipat Lapcharoensuk, Kitticheat Danupattanin, Chaowarin Kanjanapornprapa and Tawin InkaweeE3S Web Conf., 187 (2020) 04001DOI: https://doi.org/10.1051/e3sconf/202018704001