4Hu B, Gong QH, Wang Y, et al. Prebiotic effects of neoagarooligosaccharides prepared by enzymatic hydrolysis of agarose[J]. Anaerobe,2006,12(5-6):260-266.
5Enoki T, Sagawa H, Tominaga T, et al. Drugs, foods or drinks with the use of algae-derived physiologically active substances[P]. US patent:6475990,2002-11-05.