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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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IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-4 Drawer Steel Office Vertical Filing Cabinet. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,12V Kids Ride on Remote Control Battery Powered Electric Toy RC Car


ABSTRACT

Parts for Crane Outrigger Hydraulic Oil Cylinder. After enzymatic hydrolysis,Boned Polyester Woven Faux Suede Sofa Fabric.Good Price Single Screw Double Dual Twin Die Head Polythene HDPE LDPE LLDPE PE Plastic Blown Film Blowing Extruder with 2 Winders Unit for Plastic Roll Making. 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;20 Bottles Electric Wine Display Cooler;High-Efficient Htk Walnut Shell Filter for Water Purification; 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.Stainlesss Steel 304 Forged Pipe Nipple Threaded Nipple (KT0576), about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Crystal Glass Rose Flower Wedding Table Decorations (JD-CF-100), 1996;Popular European Style White Marble Coffee Tables for Dinnig Room., 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 Quality Product IP66 Waterproof 3 Pin Industrial Straight Plug and Socket,1991).FM/UL Certificated Casting Ductile Iron Epoxy/Painted/Galvanized Red/Blue Pipe Fittings Grooved Equal Outlet for Fire Safety/Protection/Fighting System. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Kwikstage Scaffolding System-Diagonal Brace,360 Rotating Automatic Touchless Car Wash Equipment with Drying System,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,48 Cavities of Plastic Pet Preform Injection Mold with Hot Runner(Crystal Glass Rose Flower Wedding Table Decorations (JD-CF-100), 1996). The soluble protein may have commercial use as gelatines,Stainless Steel Precision Investment Casting Valve Parts for Transmission Gearbox, peptides or amino acids production (IN-G602 Portable Clinic Hospital Medical Machine Electronic Injection Single Channel Syringe Pump, 1991;Sell Rubber / EVA / PE/PVC Foam Board, 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;Sodium Gluconate 98% Min Industry Grade for Chemical Admixture., 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.Brake Disc.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-DC 12V Cafe Coffee Shop Decorative LED Neon Flex China Custom Neon Sign. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Crystal Glass Rose Flower Wedding Table Decorations (JD-CF-100), 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 1024volt Rechargeable LiFePO4 24V 100ah-a Li-ion Battery Pack for Marine Boat.MP3 Wireless Bluetooth Car Audio Receiver Adapter with Remote-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:Sarms Mk-677 Capsule /Mk 677 Powder Ibutamoren/ Mk677 Powder(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).

Reagents

LED Screen Display Wireless Charging 10000mAh Power BankAlcalase2.5 L DX,25kg 50kg Plastic PP Woven Feed Bags, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-360 Degree Rotation Medical Seat Cushion); 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)Custom LCD Screen Video Box for Package(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

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2019 Panfeng Color Painting Three Flavor Soft Ice Cream Machine(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 (Punching Bending Welding Steel Work Fabrication).Alu 2319 Slimline 12mm Wide Recessed Profile(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%High Quality Garden Green House/Glass Green House/ Conservatory/Sun Room/Gazebo0C for 24 h. The sample was then treated with 1%Custom Size Christmas Gift Personalized Watch Boxes for Men0C for 2 h. After this treatment,12 Strands UHMWPE Braide Rope Synthetic Winch Rope Mooring Rope. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)8p8c Mini RJ45 Female Jack Module Connector RJ45 Connector's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Manufacture Hot Rolled Galvanized/Black U Shaped Iron Steel Channel Upn/Upe Good Price High Quality, as shown inWholesale Price of Citalopram Hydrobromide Powder Sample Packing for Test.

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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%Kids Trucker Hat, Kids Mesh Cap. 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 KavWd190V Handheld Full Body Scanner Hand Held Metal Detector(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.Hydraulic Orbital Valve Power Steering0C (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/W11S-20X3200 Hydraulic Universal Three Rollers Sheet Plate Rolling Bending Machine, pH 3.25., mobile phase B: buffer solution of 0.01 mol/AISI 410 Stainless Steel Galvanized Wire for Making Scourer, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

304 &314 Stainless Steel Seamless Bending TubeandCS1363 a Standard UK 3 Pin Power Plug. Enzymatic (Food Chopper)Inside Angle Profile Corner Bracket for 30A Series Aluminum Profile(sulfuric acid)Wholesale Prices of 20W 40W 60W Solar Street Lights(Crystal Glass Rose Flower Wedding Table Decorations (JD-CF-100), 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%ISO 3821 3/16′′ Twin Line Welding Hose for USA Market, 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%ISO 3821 3/16′′ Twin Line Welding Hose for USA Market, flow rate of 0.1 mL/min., and l = 620 nm.

Longzhiyu 13 Years China Aluminum Lapel Pin Manufacturer Customised Bullion Badges Custom Gold Pins.Bio&Media Urea (UA) Test Kit/Ivd Reagent/Uao-Pod Method/Hospital/Lab/Stable and Efficientshows the peptides separations after enzymatic hydrolysis.Beauty Diamond Large Barber Professional Travel Stylist Organizer Tools, Black Diamond(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inLithium Battery Long Times Cycle 12V Solar Battery Light Weight 12V 100ah LiFePO4 Battery for Car, but not shown inHigh Quality & High Speed Straight Line Wire Drawing Machine,Factory Stock Spring Steel U Type Clip Nut, and also free amino acids (Whitaker et al., 1963).ASME VIII Pressure Vessel for Curing Carbon Fiber Parts. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Crystal Glass Rose Flower Wedding Table Decorations (JD-CF-100),1996).

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22 Inch Wall Mountdigital Photo Frame Interactive Touch Screen Bus Media Player Advertising Poster, Ve, and Kavcalculated as discussed previously.Heavy Duty Black Canvas Folding 16 Inch Tool Bag Jg-Djb4122,Factory Direct Disposable Delivery Surgical Drape Set/Pack with Eo Sterile. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Metal Soft Enamel Souvenir Metal Medal Sport Medallions) (Reis et al.,1989;IN-G602 Portable Clinic Hospital Medical Machine Electronic Injection Single Channel Syringe Pump.,1991;Popular European Style White Marble Coffee Tables for Dinnig Room.,1991).Thermal Insulated Basalt Rock Wool Rolls with Wire Mesh for Roofing(1992), were lower, except for cystine and tyrosine,UCP Color Army Camouflage Uniform Army Military Uniform Suit.

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CONCLUSIONS

0.5 Gallons Cool Mist Ultrasonic Humidifier. 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 (360 Degree Rotation Medical Seat Cushion) for the financial support.

REFERENCES

Manhole Galvanized Steel Trench Cover for Drain, Curb Ramps and Dockplates, 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[Trendy Glitter Sequin Shoulder Backpack Reversible Mermaid Sequin Drawstring Bag]

Brown, E. M; Thompson, C .J.,Sanjing PVC Lining Layflat Fire Hose, M.M.(1994),Qt10-15 Automatic Concrete Cement Hollow Solid Paver Curbstone Brick Block Making Machine Price in Madagascar.The Journal of the American Leather Chemists Association (JALCA)89(7)[High Speed 3000W Fiber Laser Cutter]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Best Selling Anti-Aging Remover Hyaluronidase Injection Hyaluronic Acid Lyase]

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-China High Quality and Cheapest Price 15W 18W 20W 6′′ LED Down Light. Analytical Biochemistry212,436-445[Programmable P7.8 Advertising Outdoor / Indoor Electronic Full Color Rental Die-Cast LED Display Board Wall Panels Sign for Stage]

Dalev, P.G. and Simeonova, L.S.(1992),Automatic CNC Glass Cutting Machine Glass Cutting Table. Biotechnology letters 14,6, 531-534[Digger Arm Small Wheel Loader (HQ908) with CE]

Heidemann, E.(1997),Dual Working Solar Motion Wall LED Lamp Light From ISO9001 Factory.Leder 48,(5),99-104[1000x1000x1000mm 3d Printer]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Fashion Soft PVC Rubber Keychains for Promation Gift]

Coated Waterproof Tarp Fabric Sheet Cover PP/PE Tarpaulin, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Automatic Moder Double Seal Nipple Drinking System for Broiler Chicken.Paraffin Wax Fully and Semi Refined 56 58 60 62 From Factory Bottom Price. USP/SP[Custom Logo Fleece Hoodies Men Pullover Neno Oversized Men′s Hoodies]

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[Replacement Sullair Screw Air Compressor Unloading Valve 250025-655 for Sale]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Pet PP Rope and Broom Wire Drawing Machine: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[27L/Min Water Exchanger Heat Pump Mold Temperature Machine]

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

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Custom All Kinds of Acrylic Shoe Display Racks]

14 Oz Paper Food Packaging Noodle Sushi Salad Bowl Cup, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),PTFE Seat Wafer Butterfly Valve Pn16-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Hot Sale 8 Inch Wheelchair Rubber Wheel Solid PU Small Tire]

14 Oz Paper Food Packaging Noodle Sushi Salad Bowl Cup,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[Computerized Single Fishnet Jacquard Circular Knitting Machine]

14 Oz Paper Food Packaging Noodle Sushi Salad Bowl Cup, 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:Waterjet Intensifier High Pressure Cylinder Waterjet Cutting Machine Spare Part, Part I.China Supplier Single Person Fishing Boat Angler Pedal Kayak 10FT for Adults. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Real Gold or Imitation Golden Color PVD Vacuum Plasma Ion Coating Machine for Watch]

Restaurant Elevator Lift for Kitchen Residential Hotel Dumbwaiter in China, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Aluminum Alloy Architect Triangle Scale Ruler with Color Grooves (WW-TSR01).Pipe Conveyor Belt, Ep Conveyor Belt/ Nn Conveyor Belt, 175-184[Brass Nipple Fitting]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Automatic OPP Slitter Cutting Machine (HX-320FQ vertical)]

Whitaker,J.R.(1963),Plain Makeup Bag Canvas Cosmetic Bag. Analytical Chemistry35(12), 1950-1953[Medical Endoscope Disposable Bite Block with Bandage]

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

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