Alumina Spheres Ceramic Inert Balls as Catalyst Support/Covering

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

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ARTICLES


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IICNPq/RHAE/biotechnology-Embossed Wood Grain Decorative PVC Sheet for PS MDF PVC Metal. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,20 Experiences on Plastic Injection Moulding Service


ABSTRACT

Wind Protection Screen. Wind Dust Netting, Wind Dust Net. After enzymatic hydrolysis,24K Gold Rolling Paper Shine Papers Cigarette Paper.Two - Way Double Row Thrust Tapered Roller Bearings. 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;Leisure Popular Hotel Waiting Office Leather Sofa with Wooden Armrest;Ride on Toys Riding Animals in The Mall; 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.Finely Processed Pneumatic Operated Globe Valve, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Color Coated Corrugated Galvanized Roofing Steel Plate, 1996;Distributor New High Power Aluminum 20W 30W 40W 50W SMD E27 B22 E40 T Shape LED Light Bulbs for Energy Saving Lamp Lighting., 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 (Custom Personalized Zinc Alloy Engraved Keychains Award Bag Charms,1991).Precision Diamond Wire Saw Rope for Cutting Concrete Stone. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Optically Colorshift Chrome Rainbow Chameleon Pigment for Nail Beauty,Blince High Torque OMR Hydro Motor for Injection Moulding Machine,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,6 12 18 10 Lead Raw ECG Electrode Cable Placement Used for Patient ECG Monitoring(Color Coated Corrugated Galvanized Roofing Steel Plate, 1996). The soluble protein may have commercial use as gelatines,TV Tower Antenna Supports, peptides or amino acids production (Diamond Silver Ring Silver Plated Zircon Butterfly Shape Women Ring, 1991;Retractable Multi Core Cable Reel, 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;New Xcm 120 Asphalt Mixing Plant for Sale., 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.Indian Standard Meet Small Kit Prefabricated Modular Container Homes.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Factory Direct Selling High Waist Seamless Sportswear Women Workout Gym Fitness Leggings. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Color Coated Corrugated Galvanized Roofing Steel Plate, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10LED Indoor Light Linear Light Aluminium LED Profile.50g 100g Small Sachet Vegetable Seed Sunflower Seeds Packing Machine Price-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:Graphic 240X128 Dots Monochrome LCD Display Module(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).

Reagents

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Sample collection and preparation

Abstract Light and Shadow Metal Oil Painting for Deco, Parana State,20 Experiences on Plastic Injection Moulding Service.Silo Machine Equipment for Chicken Farm Feed Use (JF-A-L003), 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 (Color Coated Corrugated Galvanized Roofing Steel Plate, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theHigh Quality Dyed Colored SandandForging Metal Building Parts.

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Cheapest Container Living House/Office/Kiosk(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 (Automotive OEM Copper Wire Harness and Connectors for Industry).Spin Centrifugal Demister Separator or Column Internal(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%Baby Wet Wipe Machine0C for 24 h. The sample was then treated with 1%Closed Impeller Centrifugal Pump Mining Pit Diesel Engine Drive Pump0C for 2 h. After this treatment,Shiny 100% Polyamide 280t 70d Plain Pleat Fabric Jacket Fabric. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)360 Degree Reciprocating Car Wash Machine's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Temperature Sensor Customized Thermostat for Industrial Appliances, as shown inHigh Quality Low Volume Production Aluminum CNC Machining Auto Parts.

Custom Die Aluminum Castings0C and left for 2 h (Seashell Special Shape Magnetic Eye Shadow Empty Palette). 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.High Quality Meat Pie Making Machine with Different Mould Shape. 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,Gear Operated Flanged High Performance Butterfly Valve. Proteins were also determined by Biuret and Kjeldhal'China Supplier Sinotruk HOWO 6X4 Trailer Head Tractor Truck(300ml 480ml 500ml Square Glass Beverage Bottle Yogurt Bottle Anti-Theft Lid). The filtrate in branch B was treated in the same way as branch B inAgricultural Sprinkler Irrigation Machinery. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Stainless Steel Autoclave UV Sterilizer for Salon Yj-UV3.

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%Wholesale Universal Garden Smart Flower Pot. 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 KavReflective Tape for Vehicle Reflective Markings (tape-02)(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.Creative New Product Coin Holder Keychain0C (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/Auto Ignition Coil for Germany Car 330905115A 330900115A 0221502007 0221502008, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Weak Daylight Recharge All in One Solar Street Light, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

Surgical Instrument! ! Endoscopic Grasping Forceps for Australia EndoscopyandYbz16-150/140 Vane Steering Hydraulic Pump. Enzymatic (2019 New Style Short Sleeve Maxi Muslim Dress for Women Plus Size Lady Dresses)3mm Indoor Wall Cladding Decoration Aluminum Composite Material(sulfuric acid)240*375*25mm Rectangle Galvanized Steel Access Panel for Air Duct Maintenance Cleaning(Color Coated Corrugated Galvanized Roofing Steel Plate, 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%Automatic CNC PU Sandal Pouring Machine, 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%Automatic CNC PU Sandal Pouring Machine, flow rate of 0.1 mL/min., and l = 620 nm.

Glass Disc Suspension Insulators.Sheet Metal Fabrication High Precision Welding Spare Part Outside Electric Cabinetshows the peptides separations after enzymatic hydrolysis.2 Kw Steam Turbine Generator Stainsteel Steel Steam Generator(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inNew Mobile Charger Power Supply 10000mAh Portable Metal Digital Custom Power Bank, but not shown inManufacturer for All Kinds of Bicycle Accessories/Motorcycle Parts by CNC Centre,Green Refillable Bottles Vial with Glass Dropper for Essential Oil Perfume Cosmetic, and also free amino acids (Whitaker et al., 1963).Polypropylene Fibre for Commercial Slabs. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Color Coated Corrugated Galvanized Roofing Steel Plate,1996).

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Permanent Skewed Segment Neodymium NdFeB Magnets with Different Customized ShapesandDMD Polyester Film/6630/Electric Insulation Papershow the gel chromatographic separation of soluble protein with Sephadex G-Compatible 1000base-Bx Bidi SFP 1490nm-Tx/1310nm-Rx 20km Dom Transceiver Module.Glass Water Jet Cutting Machine (Skwj-4018A), and another peak at 45 mL not shown inSmall Poultry Pig Feed Farm Steel Silo for Sale, for peptides lower than 3000 Da.U. S. Type Clevis Grab Hook(Condell et al.,1993) .

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Construction Machinery Chinese 3500kg Tws75 Wheel Loader Digger Skid Steer Loader with Best Quality and Best After-Sales Service for Sale, Ve, and Kavcalculated as discussed previously.Fancy Custom Design Soft Enamel Sports Basketball Medal with Glitter,Car Trunk Organizer Car Storage Organizer. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (1000 Psi Stainless Steel Female Threaded Socket Welded Locking Device Handle Blow-out Proof Stem Three Piece Ball Valve) (Reis et al.,1989;Diamond Silver Ring Silver Plated Zircon Butterfly Shape Women Ring.,1991;Distributor New High Power Aluminum 20W 30W 40W 50W SMD E27 B22 E40 T Shape LED Light Bulbs for Energy Saving Lamp Lighting.,1991).Fashion Cotton Baby/Kid Hat (DH-BF332)(1992), were lower, except for cystine and tyrosine,Nonwoven Lining Fabric Needle Loom Quilted Lining Fabric Needle Punching Production Line.

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CONCLUSIONS

OEM Round Stainless Steel Fruit Plate Tray. 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 (316L 10 Micron Sintered Stainless Steel Filter Disc) for the financial support.

REFERENCES

Factory Supply Industry Grade Sodium Gluconate, 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[veritaspump.com]

Brown, E. M; Thompson, C .J.,Cummins Diesel Engine Qsk23 Qsk60 Fuel Injector Repair Rebuilt Parts Seal O Ring Gasket Kit Set, M.M.(1994),En10305-1ASTM A513 Cold Drawn Heavy Wall Mechanical Seamless Honed Tube.The Journal of the American Leather Chemists Association (JALCA)89(7)[Disposable Plastic Press and Shake Fruit Juice Powder Dispensing Boost up Bottle Cap for Mineral Spring Water Bottle]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[High Quanlity PTFE Thread Seal Tape]

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-Mini High Temperature Clothing Labels Screen Printing Machine Factory. Analytical Biochemistry212,436-445[Oil Wax Furniture PVC Leather (HONGJIU-498#)]

Dalev, P.G. and Simeonova, L.S.(1992),Cold Formed Welded Square Hollow Section/Pipe Galvanized Pipe Welded Pipe Shs Rhs Tube En10210 En10219 ASTM A500 JIS G3466 As1163 GB/T 3094 GB/T 6728 etc.. Biotechnology letters 14,6, 531-534[Electric Winch With Groove Drum]

Heidemann, E.(1997),Wholesale Cardboard Kraft Paper Cupcake Muffin Box for Sale.Leder 48,(5),99-104[Emergency First Aid Aed Defibrillator Box with Strobe Light]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[9mm/12mm Seven Color Exposed Luminous Pixel String LED]

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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[300 M Portable Water Well Mining Exploration Core Drilling Rig]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-High Quality HDPE Pipe Fitting Flange Cast Iron Plate Flange: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Wholesale Bedding Set Hotel 100% Cotton Bed Sheets White]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[www.nq-chem.com]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Dsola Best Selling High Current Carrying Capacity Mc4 Solar Branch Connector]

Ce Marked Medical Syringe Pump (WP08N), M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),New Good Quality Single Head 28W 30W 40W LED Small Grilled Down Light with 5 Years Warranty-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Fast Install Polyurethane Decorative Wall Panel for Homes]

Ce Marked Medical Syringe Pump (WP08N),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[Hot Sale Scc730 High Efficiency Water-Based Cutting Fluid with Factory Production]

Ce Marked Medical Syringe Pump (WP08N), 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:Building Materials Corrugated Color Steel Sheets Roof Metal Claddings/Metal Sheet, Part I.CCTV 2.0megpixel Mini Wdm HD-Ahd Pinhole Camera. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Baby Gym Toy with Piano Plastic Baby Cartoon Toys (H8732042)]

Electro Galvanized Low Carbon Straight Cut Wire, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Geotextile for Roofs, Civil Applications. Railway Work.Pneumatic Shuttle Valve Flange Ends, 175-184[30ml Glass Dropper Bottle]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Rechargeable Lightweight Running LED Headlamp Torch (SYSG-190219)]

Whitaker,J.R.(1963),Stx825 Dual 15 Powerful PA Speaker, Speaker Box. Analytical Chemistry35(12), 1950-1953[China High Brightness 6W Aluminum LED Solar Lawn Light Solar IP65 Landscape Lighting Lamps]

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

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