Acidic polysaccharide CH-1 isolated from Chlorella pyrenoidosa and the use thereof
First Claim
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1. An acidic polysaccharide having the following properties:
- (a) consisting of carbon, hydrogen, oxygen and nitrogen with an approximate elementary analysis of O;
54.05%;
C;
38.49%;
H;
6.07%; and
N;
1.39%;
(b) a sedimentation coefficient of S20,w=6.15 S when determined by ultracentrifugation;
(c) impermeability to cellophane membrane,(d) a melting point characterized by coloration at about 240°
C. with carbonization at higher temperatures;
(e) a specific rotation of [α
]D29 =-9.52 (c=1, H2 O);
(f) solubility in water, and insolubility in methanol;
(g) a positive color reaction with anthrone, Molisch, and carbazole-H2 SO4 and a negative color reaction with Folin-Lowry and ninhydrin;
(h) no detectable protein as measured by Folin-Lowry color reaction test;
(i) a monosaccharide analysis consisting of rhamnose, galactose, arabinose, glucose and glucuronic acid when detected by paper chromatography and gas chromatography after hydrolysis of said polysaccharide in 7% H2 SO4 under refluxing for two hours;
(j) a UV spectrum with end absorption in 0.125% aqueous solution;
(k) an IR spectrum (KBr tablet) with absorption bands at 3420, 2930, 1640, 1380, 1125, 1065, 1040, 990, 915, 835 and 880 cm-1 ;
(l) an electrophoretic pattern on acetate membrane as shown in FIG. 2, electrophoresced to 0.8 cm for (+) with 0.1M pyridine-acetic acid at pH 5.0, 200 V (4 mA) for 20 minutes;
(m) an ultra-centrifuge pattern as shown in FIG. 3;
(n) being obtained as a white powdery precipitate; and
(o) having a sugar content of 53% when calculated as glucose.
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Abstract
A new acidic polysaccharide is isolated from a culture of cells of the algae Chlorella pyrenoidosa. The process for producing this polysaccharide is also disclosed. This substance exhibits antitumor activity and antiviral activity and induces the production of interferon.
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Citations
7 Claims
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1. An acidic polysaccharide having the following properties:
-
(a) consisting of carbon, hydrogen, oxygen and nitrogen with an approximate elementary analysis of O;
54.05%;
C;
38.49%;
H;
6.07%; and
N;
1.39%;(b) a sedimentation coefficient of S20,w=6.15 S when determined by ultracentrifugation; (c) impermeability to cellophane membrane, (d) a melting point characterized by coloration at about 240°
C. with carbonization at higher temperatures;(e) a specific rotation of [α
]D29 =-9.52 (c=1, H2 O);(f) solubility in water, and insolubility in methanol; (g) a positive color reaction with anthrone, Molisch, and carbazole-H2 SO4 and a negative color reaction with Folin-Lowry and ninhydrin; (h) no detectable protein as measured by Folin-Lowry color reaction test; (i) a monosaccharide analysis consisting of rhamnose, galactose, arabinose, glucose and glucuronic acid when detected by paper chromatography and gas chromatography after hydrolysis of said polysaccharide in 7% H2 SO4 under refluxing for two hours; (j) a UV spectrum with end absorption in 0.125% aqueous solution; (k) an IR spectrum (KBr tablet) with absorption bands at 3420, 2930, 1640, 1380, 1125, 1065, 1040, 990, 915, 835 and 880 cm-1 ; (l) an electrophoretic pattern on acetate membrane as shown in FIG. 2, electrophoresced to 0.8 cm for (+) with 0.1M pyridine-acetic acid at pH 5.0, 200 V (4 mA) for 20 minutes; (m) an ultra-centrifuge pattern as shown in FIG. 3; (n) being obtained as a white powdery precipitate; and (o) having a sugar content of 53% when calculated as glucose. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification