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Abstract
Xylooligosaccharides (XOS’s) exhibited considerable prebiotic and antimicrobial potentials and can be incorporated into many food products and in pharmaceutical and drug industry. XOS’s were produced from xylose-containing polysaccharides (XPS’s) obtained from natural, xylan-rich, agro- industrial wastes, i.e. corncobs and sugarcane bagasse. The yields of XPS’s were 32.1% and 27.2% from corncobs and sugarcane bagasse; respectively. The XOS’s were prepared by partial hydrolysis of XPS’s obtained from corncobs and sugarcane bagasse, either chemically by oxalic acid 0.25N or microbially by fungal attack by Aspergillus niger or by Trichoderma reesei. The partial hydrolysis of XPS’s; resulted in production of 8 mixtures comprising a total of 18 individual oligosaccharides. XOS’s were then evaluated as for their biological activities, including their prebiotic, antimicrobial, anticoagulant and fibrinolytic activities. The results showed that the tested XOS-mixtures enhanced the growth of the probiotic bacteria.