Extraction Process and Bacteriostasis of Polysaccharides from Houttuynia cordata Thunb.
Using Houttuynia cordata Thunb.as a raw material,we investigated the extraction process of polysaccharides from Houttuynia cordata Thunb.by a single-factor experiment and an orthogonal experiment, and studied bacteriostasis of polysaccharides.The optimum extraction conditions were determined as follows:extraction temperature was 80 ℃,solid-liquid ratio was 1 :40(g:mL),and extraction time was 6 h.Under a-bove conditions,the extraction rate was 9.74%.Polysaccharides from Houttuynia cordata Thunb.strongly in-hibited the growth of Escherichia coli and Staphylococcus aureus ,and weakly inhibited the growth of Bacillus subtilis .This study lays the foundation for further development and application of Houttuynia cordata Thunb. in food and drug fields.
polysaccharides from Houttuynia cordata Thunb.extraction processbacteriostasis
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万方数据
维普
