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KMID : 1024620110310010081
Food Science of Animal Resources
2011 Volume.31 No. 1 p.81 ~ p.85
Inhibitory Effect of Polysaccharide from Kefir Grain on the Infection of MA-104 Cell by Human Rotavirus
Lee Jong-Ik

Song- Kwang-young
Chon Jung-Whan
Hyeon Ji-Yeon
Seo Kun-Ho
Abstract
The inhibitory effect of a polysaccharide from kefir on human rotavirus infection in MA-104 cells was investigated. The extracted polysaccharide was separated as fraction I in unbound materials and as fractions II, III, and IV in bound materials. Adding polysaccharide fractions II (4.8 mg/mL), III (5.3 mg/mL), and IV (1.4 mg/mL) inhibited the infection of MA-104 cells by human rotavirus. The 50% inhibitory concentrations (IC 50) were 0.075, 0.083, and 0.022 mg/mL, respectively. Based on these results, the kefir polysaccharide has anti-rotavirus activity. In conclusion, a polysaccharide from kefir had more than a 97% inhibition effect against human rotavirus infection in MA-104 cells.
KEYWORD
kefir, polysaccharide, human rotavirus
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