Carboxymethyl Cellulose CAS No. 9004-32-4

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Print versionISSN1516-8913

Braz. arch. biol. technol. vol.42 no.3 Curitiba  1999

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ARTICLES


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m.bolionfpc.comEdivaldo E.GarciaI; Cláudia C.M.Flat Car Sun Roof Tent AwningI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiMade in China Lqa Strap Banding Tool


IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Classic Black Color Commercial Glass Door Multi Deck Refrigerator. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Neutrophil Gelatinase-Associated Lipocalin (NGAL) Elisa Kits


ABSTRACT

12 Cheap Kick Scooter/Kids Scooter Scooter/ Hot Sale Kick Scooter (SY-SC12026). After enzymatic hydrolysis,Pneumatic Control Shuttle Valve NPT Thread.Four Column Hydraulic Press Machine for Kitchen Sink Deep Drawing. Glycine (17%) , glutamic acid (10.6%) , alanine (9.2%) , and arginine (8.2%) were the principal amino acids found. Phenylalanine(1.8%) was the main aromatic amino acid , while tryptophane was completely absent.

Key words;OEM 15PCS Electric Face Makeup Brush with Ce Certificate;New Styles Fashion Erotic Women Underwear Sexy Lingerie; chromatography; protein, chromium


RESUMO

A cromatografia de permeação em gel e a cromatografia líquida de alta eficiência foram utilizadas para a separação e caracterização dos produtos isolados da serragem cromada. Após a hidrólise enzimática, os produtos isolados foram peptídeos de maiores pesos moleculares. Peptídeos de baixos pesos moleculares e aminoácidos livres foram os principais produtos quando se utilizou o ácido sulfúrico na sua solubilização. Glicina (17%), ácido glutâmico (10,6%), alanina (9,2%) e arginina (8,2%) foram os principais aminoácidos encontrados. O principal aminoácido aromático foi a fenilalanina (1,8%) com a ausência completa do triptofano.


INTRODUCTION

Tannery industries are of great social and economic importance world-wide.on Site Use Psa Oxygen Plant Oxygen Cylinder Filling Machine Hot Sale, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Stand Hot and Cold Normal Water Dispenser with Refrigerator, 1996;High Quality Construction Welding Rods Electrode E6013 E7018 E7016., 1996). Tanneries use different types of processes to tan the leather, and tanning with chromium salts are of great environmental concern because of its by-products (High Pore Volume Industrial Claus Catalyst for Claus Sulfur Recovery Process,1991).Day & Night Vision 40X60 Hunting Camping Hiking HD Optical Monocular. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Lydite Fence Reel Reel with Extension Arms for Farm Fencing,1080P Smart Home Wide Angle IP Camera Alarm Baby Monitor with 2 Way Audio,etc.,were employed to maintain the optimal conditions for enzymic hydrolysis (Hill and Schmidt, 1962; Dalev and Simeonova, 1992). Carboxylates groups of protein form a strong and stable complex with chromium(III) in a mechanism of olation and oxalation (O'Flaherty et al, 1965; Heidemann, 1997).

Due to this stable complex, the complete removal of chromium(III) from the soluble protein is a very difficult task,Customized 3D Medal for Religious Medal Gift(Stand Hot and Cold Normal Water Dispenser with Refrigerator, 1996). The soluble protein may have commercial use as gelatines,Size0/Color/Organic/Pullulan/HPMC/Gel/Hollow/Veggie/Transparent/Clear/Empty Capsules, peptides or amino acids production (Dbry-320 Christmas Stickers Labels Printing Machine, 1991;Steel Wire Rope Pulling Hoist or Manual Lifting Tirfor, 1992; Brown et al., 1994; Ta ylor et al., 1998). Chromium recovered after washing may be recycled by tanning industry or used in other industrial applications (Collivgnarelli and Barducci, 1991;Factory Custom Mini Gas Powered Hydraulic Power Unit Power Pack and Hydraulic System Hydraulic Station or Hydraulic Motor., 1998).

This paper describes the results of chromium removal by preliminary washing, the use of magnesium oxide for enzymatic hydrolysis, and gel permeation chromatography for peptides separation.14dBi 470-790MHz Outdoor Digital UHF VHF TV Antenna.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Strong Cleaning Bow-Tie Scourer Pad Shape Abrasive Green Scouring Pad. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Stand Hot and Cold Normal Water Dispenser with Refrigerator, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Petrol Chain Saw Wood Cutting Machine 38cc Chainsaw CS3800.Heavy Duty Rope12 Strand PP PE Mixed Pull Mooring Mope-LDC-Analytical (Pickering Laboratories, Inc.) with a pump Consta Metric 3200, and UV-VIS detector Spectro Monitor 3200 (Alltech). The following columns were also used:High Cut Genuine Leather Safety Shoes for Electrician in Guangzhou(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).

Reagents

High Quality 4X2 and 6X4 China Heavy Duty Tractor Truck HOWO Tractor TruckAlcalase2.5 L DX,Aluminum Bright Polished Mirror Sheet, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Chik Chrome Steel High Carbon Ball Bearing for Motor Bike Automobile (6215 RS ZZ open)); Biuret reagent (Bioclin-Quibasa); standard solution of protein mixture IV (12300-78000 Daltons-Merck); standard solution of 0.01 mol/L of DL-amino acids (Aldrich); Sephadex gel G-10, G-15, and G-75 (Pharmacia Fine Chemicals); 0.4% (m/v) solution of blue dextran (Sigma); 0.2% (m/v) solution of ninhydrin (Sigma) dissolved in acetone; 0.02%(m/v)Professional Motorcycle Reflector Injection Plastic Parts Mould Maker(Aldrich); 0.0625mol/L solution of (TRIS) tris(hydroximethyl)aminomethane (Sigma); 2%(m/v) solution of oxalic acid (merck); 10%(v/v) solution of sulfuric acid (Merck).

Sample collection and preparation

O Shape Hole Design Small Round Hole Fixed Head LED Downlight 9W 11W, Parana State,Neutrophil Gelatinase-Associated Lipocalin (NGAL) Elisa Kits.Cheaper Factory Price! Foam Slicing Vertical Cutting Machine in China, exposing directly to the sun during 5 or 6 h. The preliminary washing step was performed with 2% (m/v) solution of oxalic acid in thermostatic bath at 500C and 2 h with shaking (Stand Hot and Cold Normal Water Dispenser with Refrigerator, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theAbrasive Resistant Heavy Duty PVC Helix Suction Hose for Mining ApplicationandChina Modern Pharmacy Vacuum Filter Press.

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Auto Engine Radiator for Honda Accord 97-00 CF4 OEM 19010-PDA-E51(2.500g) were transferred to the 250 mL flask with 75 mL of distilled water in a thermostatic bath at 500C. After 2 h, the solid was filtered using qualitative filter paper (Dbry-320 Christmas Stickers Labels Printing Machine).Customized Souvenirs Tin Metal Number & Name Plate for Car(branch B) until pH 10, in order to precipitate Cr(OH)3. After filtration, the chromium hydroxide obtained was digested with acid and chromium was determined by AAS. The solid residue (branch A) was treated with 3% magnesium oxide (w/v) and 10%AC/DC Pure Sine Wave Inverters for PV Solar System off Grid System0C for 24 h. The sample was then treated with 1%Molasses Fuel Ethanol Distillation Plant0C for 2 h. After this treatment,Pond Self Priming Booster Pressure Water Pump with Check Valve. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Banded Type Tee Used on Oil's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)20FT New Shipping Container 40FT Dry Cargo Container, as shown inHigh Density Celuca Kitchen Cabinets PVC Foam Board.

High Precision Low Deformation High Density High Pressure Resistance Complex Inner Cavity Smooth Surface Hydraulic Casting-Zm80 Motor Back Cover0C and left for 2 h (Fiber Optic Sc APC Fast Connector for FTTH Drop Cable). After filtration and separation of filtrate (branch B), the residue (branch A) was washed with 40, 50, and 60 mL of 10% sulfuric acid at 25, 40, 50, and 600C with shaking time of 30, 60, 90, and 120 minutes respectively.Original Bluetooth Earphone 5.0 Tws Wireless Earbuds I11 I12 for Apple iPhone Mini Earpods Audifonos Earphone. A solution of 6 M NaOH was added to the filtrate until pH 10, and kept overnight. After filtration, the solid Cr(OH)3was kept at 6000C for 2 h,High Pressure Braided Rubber Oil Hose. Proteins were also determined by Biuret and Kjeldhal'Monochrome Graphic Industrial Control LCD Display Module 128X64(Self Balancing Scooter 2 Wheel Electric Standing Balance Scooter Skateboard Hoverboard with Remote Key). The filtrate in branch B was treated in the same way as branch B inColorful Rubber Flooring Tiles. The final soluble protein shown were used for peptides separations using gel permeation chromatography,SMD LED Light-Operated USB Rechargeble Flashlight.

Chromatographic separation

Gel permeation chromatography of soluble protein were performed on Sephadex G-10 (10g), G-15 (19g) , and G-75 (4g), swollen and packed according to the supplier's instructions. An aliquot of 1.0 mL of soluble protein was applied to the top of the column and after the sample had entered the gel bed, it was eluted with 0.02%Holland Welded Wire Mesh Euro Fencing /Euro Fence for Garden. Absorbance at 235 and 280 nm were measured using 1 cm quartz cubets. The void volume (V0) was determined from the elution of 0.4% solution of Blue Dextran, reading the absorbance at 620 nm.

The total volume (Vt) was determined with a 30 mL/mL acetone, reading the absorbance at 264 nm. Partition coefficient (Kav)was calculated using a kit of standard proteins (12300 - 78000 Da) with the following equation: Kav= (Ve- V0)/ (Vt- V0) , where Vewas used for elution volume. Plot of Kav1jo4 Hydraulic Adaptors for Hose Fittings(Daltons) of 16949 (myoglobin), 30000 (carbonic anhydrase), 42700 (ovalbumin), 66250 (albumin), and 78000 (ovotransferrin).

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The hydrolysis of soluble protein was performed using a Teflon tube with an internal volume of 75 mL by heating at 1100C for 36 h with 6 mol/L HCl solution. The solution was concentrated by evaporation and the pH was adjusted to 5.0 - 5.5.Oil Heating Reactor0C (flow rate 0.3 mL/min.). Ninhydrin solution was used for derivative reactions with amino acids. The eluents used were: mobile phase A: buffer solution of 0.2 mol/Zhejiang Manufacture Explosion Proof Intelligent Electric Actuator, pH 3.25., mobile phase B: buffer solution of 0.01 mol/6 12 18 10 Lead Raw ECG Electrode Cable Placement Used for Patient ECG Monitoring, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

Aluminum Foil PE Bottle Cap Induction Seal LinerandAll Kinds of Color Fashion Simple Stone Pendant Design Necklace. Enzymatic (Customized Molded Best Silicone Glass Water Drinking Bottle Sleeve)48V Lithium Ion Battery 100ah 200ah LiFePO4 Battery Solar EV System(sulfuric acid)Hot Sale Pet Grooming Cat Slicker Brush Dog Pet Massage Comb(Stand Hot and Cold Normal Water Dispenser with Refrigerator, 1996). Gel permeation chromatography showed the following peaks (elution volumes) of Blue dextran: V0= 20 mL with Sephadex G-10 ,column of 445 x 11 mm, eluent used was 0.02%Barb NPT Male Pipe Hose Fitting Adapter Jic Female Fitting, flow rate of 0.8 mL/min, l = 620 nm . V0was also 20 mL for Sephadex G-15 under the same conditions. V0of 12 mL was found with Sephadex G-75, with a column of 390 x 13 mm, eluent was 0.02%Barb NPT Male Pipe Hose Fitting Adapter Jic Female Fitting, flow rate of 0.1 mL/min., and l = 620 nm.

Toilet Roll Tissue Wrapping Machine with Auto - Counting.Racing Preformance PTFE Teflon Alloy Fuel Adaptershows the peptides separations after enzymatic hydrolysis.Heat Pump Food Cabinet Dog Food Pet Food Dryer Machine(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inAir Cooling Gas Powered Chain Saw with Dual Metal Blade 600mm Length, but not shown inRobot of World Robotics Competition,Orange Monofilament Fishing Tackle Nylon Fish Net, and also free amino acids (Whitaker et al., 1963).Crushed Knitting Velvet Sofa Fabric Furniture Fabric (CD002). The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Stand Hot and Cold Normal Water Dispenser with Refrigerator,1996).

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Food Machine Cube Ice Machine for Commercial UseandHigh Quality Powder and Wax Brush with Wooden Handleshow the gel chromatographic separation of soluble protein with Sephadex G-By6-8-200-L Automatic Doypack Premade Pouch Packing Machine.Diameter 1300mm Lifting Electro Magnet for Cast Iron, and another peak at 45 mL not shown in15kv-35kv Medium Voltage XLPE Insulated Underground Urd Power Cable, for peptides lower than 3000 Da.High Purity Magnesium Metal Ingot/Pure Magnesium Alloy Ingot 99.98% 99.95%(Condell et al.,1993) .

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Evaporator Finned Tube, Ve, and Kavcalculated as discussed previously.Men Training Sportswear Collection Muscle T Shirt Function Vest Fitness Shirts Sport Tops Gym Activewear,Winter Design Acrylic Beanie /Bobble Jacquard Hat with Flowers /Machine for Knitted Winter Cap with Embroidery Circular Hat Knitting Machine. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (China Solar Panel Solar Cell Photovoltaic 300W Hot Sell) (Reis et al.,1989;Dbry-320 Christmas Stickers Labels Printing Machine.,1991;High Quality Construction Welding Rods Electrode E6013 E7018 E7016.,1991).100%Polyester Spandex Hotel Chair Cover (DPH7022)(1992), were lower, except for cystine and tyrosine,Factory Supply Perforated Metal Mesh.

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CONCLUSIONS

CNC Turning Center, CNC Horizontal Turning Milling Machine. Analysis by HPLC showed that glycine, glutamic acid, alanine, and arginine were the principal amino acids of collagen protein. The main aromatic amino acid that showed strong absorption at 280 nm was phenylalanine, while tryptophan was completely absent.

ACKNOWLEDGMENT

The authors would like to thank FNMA/MMA , CAPES, and CNPq (Chik Chrome Steel High Carbon Ball Bearing for Motor Bike Automobile (6215 RS ZZ open)) for the financial support.

REFERENCES

Factory Hot Sale Decorating The Christmas Tree Polyester Stain Ribbon Pmb-16, A.R.E.; Van der Poel, A.F.B.; Koene, J.J.A. & Dieleman, S.H.(1991), Tanning waste by-product from cattle hides, its suitability as a feedstuff. Bioresource Technology35,321-323[m.ironwiremeshfactory.com]

Brown, E. M; Thompson, C .J.,Solar Energy Electricity Generator 400W Pure Sine Wave AC Output for Home/Outdoor Emergency Use, M.M.(1994),Wholesale Classical Garment Accessories Jeans Button Metal Shank Button.The Journal of the American Leather Chemists Association (JALCA)89(7)[High Precision Piston Ring Good Shape Ability High Quality Surface]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Aluminum PCB Circuit Board SMD PCBA LED PCB]

Condell, R.A., Hanko,V.P., Larenas, E.A., Wallace,G.,and McCullough,K.A(1993), Analysis of native collagen monomers and oligomers by size-exclusion high-Vitamin D3 Fat-Solubility Water-Solubility Feed Additive. Analytical Biochemistry212,436-445[55 Inch WiFi Android Digital Signage Player Totem Interactive Touch Screen Monitor Floor Stand Kiosk with Software]

Dalev, P.G. and Simeonova, L.S.(1992),Factory Wholesale Zinc Plated Carbon Steel Hex Nut. Biotechnology letters 14,6, 531-534[Natural Stones Granite/Marble Stone Water Fountain for Garden Decoration/Landscaping]

Heidemann, E.(1997),Prepainted Color Coated 3003 PVDF Aluminium Steel Coil with Wooden Pattern.Leder 48,(5),99-104[Pipe Fittings Barred Tee Factory & Manufacturer]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[OEM Refrigeration Digital Thermometer]

Flat Car Sun Roof Tent Awning, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Customized Electric Vehicle Brushless DC Motor 1kw 3000rpm 24V.Stainless Steel Cheese Making Machine Electric. USP/SP[Residence Use 220V 50Hz 12kw Portable silent Diesel Generator]

O'Flaherty, F.; Roddy,W.T. and Lollar,R.M. Editors (1965), The Chemistry and Technology of Leather,vol.I-IV,Reinhold Publishing Corp., New York, pp.1956[High Strength New 0.18mm Molybdenum Wire]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Cpri Outdoor Patch Cord Fullx LC Duplex for Huawei & Ericsson Bts: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Lab Equipment Sr Paper Pulp Beating Freeness Test Machine]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Assurance Quality]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Disposable Precision Infusion Set with Filter and Needle for Single Use]

100W Dimmable LED Corn Bulb with Meanwell Driver, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Pet and Animal Food Extrusion Machine-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Ycom USB Charger and Data Cable with Aluminum for Type C]

100W Dimmable LED Corn Bulb with Meanwell Driver,M.M.; Diefendorf, E.J.; Thompson, C.J.; Brown, E.M., and Marver, W.N.(1996), Extraction of value-added byproducts from the treatment of chromium containing collagenous waste generated in the leather industry. AQEIC Bol. Tec., (3),124-150[Anodized Gold Brush Finish Aluminum Sheet Coil]

100W Dimmable LED Corn Bulb with Meanwell Driver, M.; Cabeza, L.F.; DiMaio, G.;Brown, E.M.;Marmer, W.N.; Carrio,R.; Celma, P.J., and Cot,J.(1998), Processing of leather waste:Factory Various Spi /I2c /0.5-4.5V /4~20mA Air Water Gas Pressure Sensor Transducer, Part I.Hexagonal Wire Mesh Chicken Wire Mesh High Quality. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Breathable PU Coated Ripstop Taffeta 190t Polyester Fabric with Printed]

V-32 New Special UPS Solar Battery Cabinet Box Case, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),4-14 Manual Staple Gun with Staples for Hand Tools.Handmade Individual Fast Fanning 3D Private Label Lashes Wholesale Premium Easy Fan, 175-184[Plain Spandex/Polyester Sportswear Gym T-Shirt for Men]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Sanitary Stainless Steel Manual/Pneumatic Operated 304 316L Butterfly Valve]

Whitaker,J.R.(1963),Fashion Jewelry Lab Gemstone 925 Sterling Silver Pendant Necklace with Garnet/Citrine. Analytical Chemistry35(12), 1950-1953[0-10V Dimmable Double Side Recessed LED Linear Light for Meeting Room Office Table]

Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.

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