Chemical and Spectral Characterization of The Ozonation Products of κ-CarrageenanAji Prasetyaningrum, Bakti Jos, Yudhy Dharmawan, Ratih V. Octaviani and Ratnawati RatnawatiMATEC Web Conf., 156 (2018) 05006DOI: https://doi.org/10.1051/matecconf/201815605006