Agaro- and carra-
oligosaccharides were produced by partial
acid hydrolysis of commercial
agarose and
kappa-carrageenan. Di- and tetrasaccharides were purified by
gel filtration chromatography and characterized by NMR (1D and 2D)
spectroscopy and ESIMS. The following
oligosaccharides were obtained agarobiose, agarotetraose, kappa-carrabiose and kappa-carratetraose. Agarobiose and agarotetraose were used as
standards to develop a high performance
size exclusion chromatography (HPSEC)
method which was utilized to study the
hydrolysis rate of
agarose and
oligosaccharide production. Six hours of
hydrolysis (0.1 M TFA, 65 ºC) produced mainly di- and tetrasaccharides. The
methodology for
oligosaccharide production and evaluation developed in the present
work shows good potential for the
production of bioactive
oligosaccharides.