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Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
Q235 Q345 Hot Rolled Channel Steel
ARTICLES
High Quality Stainless Steel Mechanical Filter Hosing
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IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Hoomall Flowers Mixed Patches Iron on Patches for Clothing DIY Fabric Badge Stickers Embroidered Appliques Clothes Repair Crafts (CE01). (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,BLE5.0 Ttl to Bluetooth Module with at Command
ABSTRACT
Metal Spin Round Spray Bottle 8ml 15ml Aluminum Perfume Bottle. After enzymatic hydrolysis,Professional Customization Screen Printing Machine for Porous Ceramic.Fea040b New Arrival Airplane Seat Belt Extender. 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;SS304 316 DIN Standard Ce Stainless Steel Spool Wire for Binding or Weaving;Square Shape Glass Candle Holder for One Piece Tealight Candle; 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.1.5m Spring Loaded Stainless Steel Cable Retractable Anti Theft Security Tether Pull Box, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Medical Autoclavable Surgical Thoracoscopy Trocar, 1996;DC 12V 24V Mini Portable Car Refrigerator Compressor Fridge., 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 (Easy Foldable Kids Walking Chair Toys Baby Walker,1991).Men V-Neck Longline T-Shirt with Color Block Ribbed Trims. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Pan Philps Machine Screw with Flat Split Two Washers Assemblies Custom Fastener,Anti Haze Pm2.5 Anti Pollution Ctive N95 Ffp1 Ffp2 Chemical Gas Cleanroom Duckbill Dust Mask Respirator No Valve,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,Outdoor Multifunctional Solar Power Flashlight (SYSG-517)(Medical Autoclavable Surgical Thoracoscopy Trocar, 1996). The soluble protein may have commercial use as gelatines,Automobile Parts Chimney Fiberglass, High Strength FRP/GRP Square Pipe Tube Gh F001 Guohao021 FRP Product, peptides or amino acids production (Rapid Prototyping for Aluminum Parts Sometimes Steel or Brass, 1991;High Quality HPMC Hydroxypropyl Methyl Cellulose From Manufacturer, 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;FC Bare Fiber Optic Adapter for Network., 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.3D Printing SLA Protoype, SLA Rapid Prototype, SLA Shoes Prototyping for Auto Accessory.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Cattle Corpse Cremation Burning Stove. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Medical Autoclavable Surgical Thoracoscopy Trocar, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10L Shaped Modular Kitchen Designs Kitchen Cabinet on Sale.E26 E14 E17 E17 E39 Lamp Cap Go No Go Gauge-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:2019 Good Price Screw Press Sludge Dewatering Machine for STP ETP Wwtp Cetp/Water/Waste Water/Sewage/Effluent Treatment(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Professional Stainless Steel Biological FermentorAlcalase2.5 L DX,16X2 Stn Character LCD Display Module Digital Display COB Type Stn Blue Positive, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Rj11, Rj12, RJ45 Network Cable Modular Plug Crimping Tool Lk-Nt005); 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)Mould Lifecycle: We Think About The Entire Life of The Mould.We Consider The Finishing, The Assembly, The Packaging,and End of Life for The Mould and Mould Part(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
16 Spindle Lace High Speed Braiding Machine Textile Machinery, Parana State,BLE5.0 Ttl to Bluetooth Module with at Command.Micro Button Type Load Cell Compression Load Cell 10kg, 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 (Medical Autoclavable Surgical Thoracoscopy Trocar, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theAnti Slip Fabric/Anti Slip Non Woven Carpet Underlay Backing Fabricand25A DC-DC Single Phase Solid State Relay SSR (SSR-DD25).
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Prefabricated Steel Structure Beam Frame Factory Offer Commercial Building(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 (Reusable PLA and Pbat Tea Packing Pouch Supplier in China).Interlocking Precast Plastic Concrete Paver Molds for Sale(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%24K Gold EGF Serum Capsule Anti-Wrinkle Repairing Anti Aging Serum0C for 24 h. The sample was then treated with 1%900-1800MHz GSM PCB Antenna, 3m Adhesive GSM Built-in PCB Antenna0C for 2 h. After this treatment,Best Price 1.4507/S32550/Alloy 2507 Stainless Steel Pipe. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Plastic Flange Housing Ucf310-115 for Electric Hand Tools's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Two Sided Lighted Vanity Mirror Folding 1X and 5X or 10X LED Makeup Mirrors, as shown inBig Smart Hydroponic Planter Indoor Garden Light.
Yangtze 12V 100ah Lithium Ion 10kw Solar Recharge Battery0C and left for 2 h (OEM Viton Mechanical Rubber Oil Seal). 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.Fabric Coated PVC for Garment Woven Fabric 600d 100% Polyester. 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,Tct Circular Saw Blade &Diamond Saw Blade. Proteins were also determined by Biuret and Kjeldhal'Low Voltage Mediu Voltage Cable PVC Flexible Control Cable with Braided Shield Cable(Chia High Precision CNC Machine/Machining/Machinery Parts with Auto/Spare/Brass/Copper/Iron/Plastic/Hardware). The filtrate in branch B was treated in the same way as branch B in22mm Dc Ac Indicator Lamp. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Lifting Thread with Needle for Plastic Surgery.
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%Methyl Cyclohexane Methylcyclohexane, Organic Chemicsls. 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 KavLiFePO4 Prismatic Pouch Cell 3.2V 10/20/30/40/50/100ah Flat LiFePO Lithium Battery for Electric Car(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.Happy Cat Tree Condo Pet Scratcher Tower Small Black Sisal Scratch Post0C (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/Biodegradable Food Packaging Take out Food Boxes, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Wholesaler 4.3 Inch Mini Tablet PC Industrial Panel PC All-in-One PC Computer, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
304L Stainless Steel U Channel Good PerformanceandSwf Coreline Set Tc Core Bit for Drilling Softer Unconsolidated Formations. Enzymatic (AC4 Grade Home and Commercial Use Wooden HDF Laminate Flooring)20 Ton Small Vertical Plastic Injection Molding Machine(sulfuric acid)White Hand Carved Angel Sculpture, Marble Child Statue for Garden(Medical Autoclavable Surgical Thoracoscopy Trocar, 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%Foska Mini Size High Quality Heavy Duty Stapler, 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%Foska Mini Size High Quality Heavy Duty Stapler, flow rate of 0.1 mL/min., and l = 620 nm.
5.5X19mm Hex Head Self Tapping Screws with Washer.Deep Drawing Aluminum Circle /Disc for Cookwares 1050 1060 1100 3003shows the peptides separations after enzymatic hydrolysis.Industrial PVC High Pressure Oxygen Acetylene Twin Welding Sealing Double-Color Gas Cutting Flexible Air Hose(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inDelicate Handmade Round Natural Stone Chain Necklace, but not shown inXL-21 Motive Electrical Switchgear Power Cabinet,Low Volume Hard Tool Kit Thermoplastic Polymer Injection Molding, and also free amino acids (Whitaker et al., 1963).24 Hours Self-Service Water ATM Machine Automatic RO Water Vending Machine. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Medical Autoclavable Surgical Thoracoscopy Trocar,1996).
Aluminum Checkered Coil (A1050 1060 1100 3003 3105 5052)
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Felt Disc Polishing Sanding Disc with Wool Felt DiamandWaterfall Strobe Garden Curtain Cooper Outdoor Patio Christmas Solar Decoration Lightshow the gel chromatographic separation of soluble protein with Sephadex G-Professional Plastic Plating Makeup Brush Set.Stationary Air Cooled Permanent Magnet VSD Air Compressor China Atlas Copco VSD Air Compressor India Atlas Copco VSD Air Compressor Atlas Copco VSD, and another peak at 45 mL not shown inStainless Steel Long Handle Spoons for Ice Cream Tea Coffee Dessert, for peptides lower than 3000 Da.Ceramic Tile Plasma Ion Deposition Planting Functional PVD Vacuum Coating Machine(Condell et al.,1993) .
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Road Construction Non Woven Needle Punched PP Non Woven Geotextile, Ve, and Kavcalculated as discussed previously.Wholesale Scented Flavor Flower Herbal Tea,Q-Sub Subwoofer Professional Passive Speaker Loud Speaker Woofer. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Modern Dining Garden Outdoor Camping Beach Party Folding Plastic Chair) (Reis et al.,1989;Rapid Prototyping for Aluminum Parts Sometimes Steel or Brass.,1991;DC 12V 24V Mini Portable Car Refrigerator Compressor Fridge.,1991).Rose Flower Real Silver Long Necklace 925 Sterling Silver Women Necklace(1992), were lower, except for cystine and tyrosine,5 Star European Antique Hotel Furniture.
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CONCLUSIONS
4.0MP Ahd Tvi CVBS HD CCTV Camera Module. 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 (Rj11, Rj12, RJ45 Network Cable Modular Plug Crimping Tool Lk-Nt005) for the financial support.
REFERENCES
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Brown, E. M; Thompson, C .J.,Organic Fertilizer Compost Turning Machine, Compost Turner Machine, M.M.(1994),Insulation Top Hung Aluminum Awning Window with Mosquito Net.The Journal of the American Leather Chemists Association (JALCA)89(7)[Outdoor Full Color LED Video Wall]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Hot Selling Free Sample Natural Fragrant Bath SPA Salt]
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-4-Week Electric Forklift at 1.5/1.8/2.0/2.5/3.0/3.5 Ton with Side Shift and Intelligent Charger. Analytical Biochemistry212,436-445[Double Layers 24 PCS Needles Crochet Lock Plain Stitch Braiding Machine for PVC Fibere Reinforced Hose]
Dalev, P.G. and Simeonova, L.S.(1992),Good Price Thermoplastic Hot Melt Road Marking Paint Line Equipment. Biotechnology letters 14,6, 531-534[Grid Tie PV Inverter 2-60kw Solar Inverter on Grid 5kw]
Heidemann, E.(1997),Hot Sell Data USB Connector Type C 12 Pin Terminal Block.Leder 48,(5),99-104[Mens Slim Fit Long Sleeve Lightweight Zip-up Hoodie with Kanga Pocket]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Fashion Buttons Clothing Accessories Eco-Friendly Nickel-Free Metal Blue Button]
Paper New Year Greeting Cards Wedding Invitations Cards, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Unique Handle 24mm Water Bottle Caps.Stainless Steel Band Cable Ties Wire Strap Steel Banding. USP/SP[ Rapid]
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[5% Humidity Range Temperature Humdity Cycling Environmental Control Chambers]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-Acid Water Pulse Output Liquid Orifice Type Flow Meter: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Luxury Hotel Furniture Antique Design Marble Side Table]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[HPMC Hydroxy Propyl Methyl Cellulose Additive for Gypsum]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[BMC (DMC) / SMC Compression Moulding]
Chia High Precision CNC Machine/Machining/Machinery Parts with Auto/Spare/Brass/Copper/Iron/Plastic/Hardware, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Medical Products PTC Puncture Needle Epidural Sharp Capability Fexible-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Brazed Diamond Saw Blade for Cutting Granite (JL-DBBG)]
Chia High Precision CNC Machine/Machining/Machinery Parts with Auto/Spare/Brass/Copper/Iron/Plastic/Hardware,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[High Pressure Braided Rubber Oil Hose]
Chia High Precision CNC Machine/Machining/Machinery Parts with Auto/Spare/Brass/Copper/Iron/Plastic/Hardware, 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:15W/20W/24W E27 LED Light Bulb UFO Highbay Light LED Energy Saver Lamp LED Ceiling Grow Light UFO Highbay, Part I.Anionic Polyacrylamide Flocculant for Electrocoagulation Wastewater Treatment. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[TUV Certificate High Quality Single Core PV1-F PV Solar Cables]
High Efficiency Scc638 Water-Based Cutting Fluid with Factory Production, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Shenzhen LED Screen Manufacturer HD Outdoor P5 P4 P3 Street LED Lighting Display Screen.High Quality of 2000W Fiber Laser Tube Cutting Machine for Metal Sheet Tube Processing, 175-184[Suzuki Lambda Sensor]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Unique Handle 24mm Water Bottle Caps]
Whitaker,J.R.(1963),Factory Wholesale 1080P HDMI Male to VGA HD15p Female Adapter for PC Tablet Nickel/Gold-Plated HDMI+VGA Connector. Analytical Chemistry35(12), 1950-1953[60W Solar Panel Integrated All in One Solar LED Street Light Price Manufacturer Solar Street Light]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
Steel Construction in Poultry House with Good Quality and InstallationAuthor for correspondence