• 한국식품위생안전성학회지
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• 제8권3호
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• pp.141-145
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• 1993

수종의 병원성 미생물에 대한 39여종의 생약 열수추출액의 항균성을 조사한 결과 다음과 같은 결과를 얻었다. 황백 Phellodendron amurense 및 황령 Coptis chinensis 는 Staphylococcus aureus균의 생육을 억제시켰으며 복분자 Rubus creanus는 Staphylococcus aureus 및 Pseudomonas aeruginosa에 항균력을 나타내었다. 진피 Citrus unshiu는 E.coli에 대해서 산수유 Cornus officinalis는 Candida albicans의 생육을 억제시켰고 우슬 Achyranthes japonica 및 감초 Clycyrrhiza uralsis는 Aspergillus niger에 뚜렷한 항균효과를 나타내었다. 또한 감초는 Staphylococcus Aureus, E. coli, Pseudomonas aeruginosa , Aspergillus niger 모두에 항균력을 나타내었다.

• Preventive Nutrition and Food Science
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• 제8권1호
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• pp.29-35
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• 2003

A crude polysaccharide fraction (GU-3) from the roots of Glycyrrhiza uralensis (licorice root), a screened herbal plant used in the preparation of herbal kimchi, enhanced Peyer's patch mediated bone marrow cell proliferation and NK cell-mediated tumor cytotoxicity against Yac-1 cells. GU-3 was further purified by DEAE-Sepharose CL-6B yielding fractions designated as GU-3I, and 3IIa∼3IIe. GU-3IIa is mainly composed of arabinose, galactose and galacturonic acid, and showed the highest bone marrow cell proliferation activity. In addition, GU-3IIb had arabinose, galactose, rhamnose and galacturonic acid as the component sugars with a small quantity of protein; GU-3IIb also enhanced activity of NK cell-mediated tumor cytotoxicity. After these fractions were further fractionated via gel filtration on Sepharose CL-6B or Sephacryl S-300, two immunological active polysaccharides, GU-3IIa-2 and 3IIb-1 were purified from the respective fractions. GU-3IIa-2 mostly contained neutral sugars (75%) such as arabinose and galactose (molar ratio; 1.0 : 0.7) in addition to a considerable amount of galacturonic acid (20%), whereas GU-3IIb-1 was composed of arabinose, galactose, rhamnose and galacturonic acid (molar ratio; 0.3 : 0.5 : 0.1 : 1.0). Methylation analysis indicated that GU-3IIa-2 was composed mainly of terminal, 4- or 5-linked and 3,4- or 3,5-branched arabinose, 3-linked, 4-linked and 3,6-branched galactose, and terminal and 4-linked galacturonic acid whereas GU-3IIb-1 contained various glycosidic linkages such as terminal and 4- or 5-linked arabinose, 2,4-branched rhamnose, terminal and 4-linked galactose, and terminal and 4-galacturonic arid. Single radial gel diffusion indicated that only GU-3IIa-2 strongly reacted with β-D-glucosyl-Yariv antigen. These results suggest that bone marrow cell proliferating activity and enhancement of NK cell-mediated tumor cytotoxicity of GU-3 are caused by polysaccharides containing a pectic arabinogalactan (GU-3IIa-2) and pectic polysaccharide (GU-3IIb-1).