Isozyme of autoclavable superoxide dismutase (SOD), a process for the identification and extraction of the SOD and use of the said SOD in cosmetic, food, and pharmaceutical compositions

Abstract

The invention relates to a novel purified isozyme of an autoclavable superoxide dismutase extracted from the plant Potentilla atrosanguinea Lodd. Var. areyrophylla, said isozyme having the following characteristics, O.sub.2.sup.- scavenging activity remains same before and after autoclaving; scavenges O.sub.2.sup.- from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; O.sub.2.sup.- scavenging activity at 25.degree. C. for 30 days without adding any stabilizing agent such as polyols or sugars; O.sub.2.sup.- scavenging activity in the presence of saline (0.9% sodium chloride) to 61.8% of the control (without 0.9% sodium chloride), stable at 4.degree. C. for at least 8 months; contamination free and infection free from any living micro- and/or macro-organism after autoclaving; possesses temperature optima at 0.degree. C.; possesses a molecular weight of 33 kD under non-denaturating conditions; possesses a molecular weight of 36 kD under denaturating conditions; has clear peaks in UV range at 268 and 275 nm; has an enzyme turnover number of 19.53.times.10.sup.4% per nmol per min at 0.degree. C.; and requires Cu/Zn as a co-factor, method for the preparation of the purified isozyme of autoclavable superoxide dismutase and formulations containing the said autoclavable superoxide dismutase.

Claims

The invention claimed is:

1. A purified isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving; and comprising at least 50 2000 units.

2. A formulation comprising: an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving; wherein the formulation is a lotion, a serum, a liquid, semiliquid or milk emulsion, further comprising vitamin B-12.

3. A method of preparing a water-in-oil emulsion comprising adding to a water-in-oil emulsion an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

4. A method of preparing an oil-in-water emulsion comprising adding to an oil-in-water emulsion an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

5. A method of preparing a gel, lozenge, tablet or gum comprising adding to the gel, lozenge, tablet or gum an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

6. A method for reduction or inhibition of premature aging of the skin comprising administering to a person in need thereof of a formulation comprising an effective amount of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

7. A method for maintaining or improving the characteristics of hair or mucosa comprising administering to a person in need thereof a formulation comprising an effective amount of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

8. A method of preparing a sustained-release pharmaceutical composition for the delivery of an antioxidant comprising adding the composition an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

9. A method of treating a disease related to O.sub.2.sup.-. production comprising administering to a patient in need thereof an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

10. A method for the preparation of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving, comprising: (a) homogenizing leaf tissue in a homogenizing buffer at pH 7.0 7.5 and at a temperature range between 4 8.degree. C.; (b) filtering the homogenate and centrifuging the filtrate at 8,000 13,000 rpm for 10 30 minutes at 4 8.degree. C.; (c) decanting the supernatant for purification of SOD; (d) precipitating SOD with 30 60% ammonium sulfate; (e) dissolving the precipitate in a 10 to 100 mM buffer at pH 7 to 7.5 and dialyzing for 18 36 hours with 6 12 changes of the buffer; (f) loading the dialyzed protein onto a DEAE-Cellulose column and eluted with 100 to 500 ml of 100 500 mM KCl prepared in a buffer (all autoclaved or non-autoclaved); (g) assaying fractions containing protein for SOD; (h) fractionating SOD containing fractions on a high pressure liquid chromatography using 100 200 mM KCl prepared in 10 50 mM phosphate buffer (all autoclaved or non-autoclaved) with a flow rate of 0.8 1.0 ml per minute; (i) assaying each peak was assayed for SOD activity SOD peak, obtained after HPLC and concentrating using a protein concentrator column; (j) assaying concentrated protein for SOD activity at different temperatures ranging between -10 to +80.degree. C. in the presence of glycerol to avoid freezing at sub-zero temperatures; and (k) localizing the purified SOD on 7 to 12% polyacrylamide gel by known methods, to facilitate enzyme assay at sub-zero temperatures.

11. A method for the preparation of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving, comprising: (a) homogenizing leaf tissue in a homogenizing buffer at pH 7.0 7.5 and at a temperature range between 4 8.degree. C.; (b) filtering the homogenate and centrifuging the filtrate at 8,000 13,000 rpm for 10 30 minutes at 4 8.degree. C.; (c) decanting the supernatant for purification of SOD; (d) precipitating SOD with 30 60% ammonium sulfate; (e) dissolving the precipitate in a 10 to 100 mM buffer at pH 7 to 7.5 and dialyzing for 18 36 hours with 6 12 changes of the buffer; (f) loading the dialyzed protein onto a DEAE-Cellulose column and eluted with 100 to 500 ml of 100 500 mM KCl prepared in a buffer (all autoclaved or non-autoclaved); (g) assaying fractions containing protein for SOD; (h) fractionating SOD containing fractions on a high pressure liquid chromatography using 100 200 mM KCl prepared in 10 50 mM phosphate buffer (all autoclaved or non-autoclaved) with a flow rate of 0.8 1.0 ml per minute; (i) assaying each peak was assayed for SOD activity SOD peak, obtained after HPLC and concentrating using a protein concentrator column; (j) assaying concentrated protein for SOD activity at different temperatures ranging between -10 to +80.degree. C. in the presence of glycerol to avoid freezing at sub-zero temperatures; and (k) localizing the purified SOD on 7 to 12% polyacrylamide gel by known methods.

12. A method for the preparation of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving, comprising: (a) homogenizing leaf tissue in a homogenizing buffer at pH 7.0 7.5 and at a temperature range between 4 8.degree. C.; (b) filtering the homogenate and centrifuging the filtrate at 8,000 13,000 rpm for 10 30 minutes at 4 8.degree. C.; (c) decanting the supernatant for purification of SOD; (d) precipitating SOD with 30 60% ammonium sulfate; (e) dissolving the precipitate in a 10 to 100 mM buffer at pH 7 to 7.5 and dialyzing for 18 36 hours with 6 12 changes of the buffer; (f) loading the dialyzed protein onto a DEAE-Cellulose column and eluted with 100 to 500 ml of 100 500 mM KCl prepared in a buffer (all autoclaved or non-autoclaved); (g) assaying fractions containing protein for SOD; (h) fractionating SOD containing fractions on a high pressure liquid chromatography using 100 200 mM KCl prepared in 10 50 mM phosphate buffer (all autoclaved or non-autoclaved) with a flow rate of 0.8 1.0 ml per minute; (i) assaying each peak was assayed for SOD activity SOD peak, obtained after HPLC and concentrating using a protein concentrator column; (j) assaying concentrated protein for SOD activity at different temperatures ranging between -10 to +80.degree. C. in the presence of glycerol to avoid freezing at sub-zero temperatures; and (k) localizing the purified SOD on 7 to 12% polyacrylamide gel by known methods.

13. A method for maintaining the softness, suppleness, and elasticity of skin comprising administering to a person in need thereof of a formulation comprising an effective amount of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

14. A method for protecting skin against the harmful effects of ultraviolet rays comprising administering to the skin of a person in need thereof of a formulation comprising an effective amount of an isozyme of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

15. The method of claim 3, wherein the water-in-oil emulsion comprises petrolatum-based skin moisturizer, cold cream, urea-based skin moisturizer hydrous lanolin, hydrophilic petrolatum, cream, sorbitan sesquioleate in a wax and petroleum base or an ointment base.

16. The method of claim 4, wherein the oil-in-water emulsion comprises acid mantle cream, emulsion cream, dimethicone and glycerin moisturizer, cetostearyl alcohol, dimethicone and glycerin moisturizer, hydrophilic ointment, mineral oil emollient, cream with butylene glycol, mineral oil and petrolatum, paste of glycerin and gyclol, occlusive cream, vanishing cream with water-soluble humectants and lipid-free moisturizer and greaseless lotion.

17. A method for protecting hair from the harmful effect of ultraviolet rays comprising administering to a person in need thereof a formulation comprising an effective amount of a superoxide dismutase (SOD) extracted from the plant Potentilla atrosanguinea Lodd. Var. orgyrophylla, said isozyme having the following characteristics: (a) O.sub.2.sup.-. scavenging activity remains same before and after autoclaving; (b) scavenges O.sub.2.sup.-. from sub-zero temperature of -20.degree. C. to high temperature of +80.degree. C.; and (c) contamination free and infection free from any living micro- and/or macro-organism after autoclaving.

18. The formulation of claim 2, wherein the formulation further comprises an antioxidant.