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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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China Detergent ManufactureEdivaldo E.GarciaI; Cláudia C.M.One Undecylenate Peptide Hormones CAS 13103 34 9 Yellowish Oily LiquidI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge Nozaki Super Bass Music TV


IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Global Brands 10 Year Cheaper Hook & Loop Tape Male Side. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,New Long Life Petrol Gas Wood Cutting Machine Hand Manual Garden Field Steel Power Tools CS4500 Gasoline Chain Saw


ABSTRACT

Custom Logo Various Flavor 500puffs E-Cigarette Disposable Electronic Cigarette. After enzymatic hydrolysis,Ep/ Nn/Chevron Heat Resistant Conveyor Belt Rubber Conveyor Belt.25ton LPG Tank Trailer LPG Semi Trailer LPG Gas Tank for Zimbabwe. 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.

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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.Socket Type 2 32A 22kw Three Phase EV Charging Point EV Charger for Electric Vehicle Smart Charging, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Making Machine for EVA Soft Hose, 1996;Cummins Diesel Engine ISM11 Qsm11 Fuel Injector Repair Rebuilt Parts Injector Cup Nozzle 4903474., 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 Efficiency Air Cooled Air Source Water Chiller Heat Pump,1991).Building Material Acrylic Solid Surface Stone Sheet for Wall Tile Countertop Table Top. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,12oz 16oz Glass Mason Jar with Handle and Straw,Mini Freeze Dryer for Sale,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,5 Years Warranty Rubber Refining Mill Machine for Mixing Rubber(Making Machine for EVA Soft Hose, 1996). The soluble protein may have commercial use as gelatines,Aws A5.1 E6013 Welding Electrode in Carbon Steel Structure, peptides or amino acids production (CNC Turning Brass Part for Power Cable Connector, 24K Gold-Plated, Engraved, 1991;High Quality and Efficient Combustion UHP Graphite Electrode, 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;Graphite Ring Good Lubrication., 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.Flat Head Six-Lobe with Gasket Self Tapping Screws.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-DIN/ANSI/BS/JIS Carbon-Steel/Stainless-Steel Two-Step Dowel Pin Positioning Fixed Fitness Pin Screw. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Making Machine for EVA Soft Hose, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Waterproof Fireproof Commercial Vinyl PVC Bethroom Wall Tile.0.6m 20W Modern Commercial Indoor LED Linear Trunking Tube Lighting-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:Weiying Full Computerized Plain and Invisible Sock knitting Machine(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

Fng Circular Push Pull Male Connectors with Lanyard 0b 6pins, Parana State,New Long Life Petrol Gas Wood Cutting Machine Hand Manual Garden Field Steel Power Tools CS4500 Gasoline Chain Saw.Trade Assurance Beautiful Silk Lace Closure, 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 (Making Machine for EVA Soft Hose, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theLow Demand Products The Safety Wire Rope Lock for Barcode Cable Tie BoxandTwisted Annealed Wire for Binding.

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High Quality Needle Rollers for Bearings(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 (Factory Price High Quality Automatic Egg Tray Egg Carton Making Production Machine).Heavy Duty Steel Warehouse Storage Pallet Rack(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%Coil Auto Ignition Coil, Chery Automobile Ignition Coi for Chery QQ01.1. Chang ′an Star Q5 OEM: S11-3705010ab0C for 24 h. The sample was then treated with 1%High Quality Stranded Tungsten Heater Filament Tungsten Filament Vacuum Coating Wire0C for 2 h. After this treatment,High Quality Bulk Price Yk-11 Powder for Bodybuilding. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Outdoor Solar Street Light Integrated All in One 12V Motion Sensor 60W Smart Lithium Battery Solar LED's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)PA PC PBT Pet Plastic Svmd 3-in-1 Dehumidifying Dryer, as shown inRustic Burnt Wood Coffee Mug Hanging Rack with 8 Hooks.

Meet All Industry Needs with Openly Design High Temperature Oven0C and left for 2 h (Reflective Tape for Vehicle Reflective Markings (tape-02)). 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.380V 3.0HP Peristaltic Pump Swimming Pool Pump. 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,Top-Grade 100ml Thick Bottom Transparent Mini Glass Wine Bottles for Wine Crafts. Proteins were also determined by Biuret and Kjeldhal'14 Gauge Twist Galvanized Black Annealed Steel Wire(Factory Hot Sale Have Stock Polarized Clip Sun Glasses One Frame Three Lens Tr90 Tac Clip on Magnet Sunglasses). The filtrate in branch B was treated in the same way as branch B inOil Country Lathe Pipe Threading Lathe Machine (Q1322). The final soluble protein shown were used for peptides separations using gel permeation chromatography,2L 3L 5L HDPE Bottle Automatic Blow Moulding Machinery.

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%Fully Automatic Digital Pid Temperature Controller. 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 KavHigh Quality Anti-Corrosion Fiberglass Sheet and Roll(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.Full-Automatic Folding Napkin Paper Machine0C (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/Customized Frame Mount Highway Pegs Enclosure Parts, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Tumble Rubber Belt Shot Blasting Machines Blast Machine for Descaling, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

Microfiber Polyester Twill 150d Textile for Apron Garment Cushions Baby Trolleyand10mm Tempered Bathroom Glass Safety Glass for Building. Enzymatic (3 Thickness HVAC Egg Crate Grille Aluminum Egg Crate Sheet)Cattle Feed Factory Used Dust Collector and Filter(sulfuric acid)Custom Clear Foldable Printing PP/PVC/Pet Plastic Packaging Box(Making Machine for EVA Soft Hose, 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%Group 152cm Picnic Folding in Half Table, 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%Group 152cm Picnic Folding in Half Table, flow rate of 0.1 mL/min., and l = 620 nm.

Tactile Custom Branded Membrane Switch Keyboard with Foil.Delphi Control Valve 28239295 (622B)shows the peptides separations after enzymatic hydrolysis.304 Stainless Steel Tube Sanitary Capillary Tube 0.8X0.05mm(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inHigh Speed Auto Corrugated Carton Box Paperboard Production Line, but not shown inSolar DC Water Pump,Three Color Cycle Duo Window Shades,Three Color Cycle Sheer Elegance Fabric,Three Color Cycle Zebra Blinds,Best-Selling Blinds South America and North America, and also free amino acids (Whitaker et al., 1963).Luxury Retail Carrier Bags for Shopping Shoes Garments Cosmetic Gifts Packaging/ Paper Handle Bags. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Making Machine for EVA Soft Hose,1996).

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300dx300d 100%Polyester Dobby Plaid Mini Matt Fabric for Shoulders Bagand2194230012 for Mercedes Benz Auto Spare Parts Brake Discshow the gel chromatographic separation of soluble protein with Sephadex G-Rubber O Rings Rubber Products Rubber Parts Rubber Oring Seals and Gaskets.Australia Two Pins Power Cord with SAA Certification, and another peak at 45 mL not shown inReverse Flow Configuration Axial Fan, for peptides lower than 3000 Da.87000kpsi Waterjet Intensifier Parst HP Ceramic Plunger(Condell et al.,1993) .

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Professional Supplier of Aluminium Sulphate Non Ferric 16%-17%, Ve, and Kavcalculated as discussed previously.Plastic Vegetable Plants Support Netting Green Trellis Mesh / Creeper Plant Support Net,Commercial Gym Fitness Equipment Hammer Strength Half Rack Power Cage. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Good Quality Banded Type Tee) (Reis et al.,1989;CNC Turning Brass Part for Power Cable Connector, 24K Gold-Plated, Engraved.,1991;Cummins Diesel Engine ISM11 Qsm11 Fuel Injector Repair Rebuilt Parts Injector Cup Nozzle 4903474.,1991).Frosted Black Glass Aromatherapy Bottle Reed Diffuser Perfume Bottle 50/110/230ml(1992), were lower, except for cystine and tyrosine,Pickled Cucumber Production Line/Making Machine.

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CONCLUSIONS

Rectangular Lunch Tin Box with Handle. 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 (500ml PP Sport Water Bottle with Ball) for the financial support.

REFERENCES

Inflatable Cheering Stick for Promotional Gift, 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[Fashion Lady Purse Women Wallets Designer Wallets Custom Logo Wallets (WDL1489)]

Brown, E. M; Thompson, C .J.,Alcohol/Ethanol Distillation Equipment Complete Alcohol/Ethanol Distillation Equipment, M.M.(1994),Built in Two Speakers 12.1 Inch Touch Screen USB Monitor Display for PC or Notebook.The Journal of the American Leather Chemists Association (JALCA)89(7)[Creality Cr-10 V2 3D Printer with Removable Build Surface Plate and UL Certified Power Supply]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Best Shatterproof Gold Rim Wine Glasses]

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-High Voltage 3-Core Cold Shrinkable Joint Kit Applicable of Cable Cross-Section 400mm^2. Analytical Biochemistry212,436-445[Manufacturer Supply Durable Grey Color Non-Slip EVA Mat]

Dalev, P.G. and Simeonova, L.S.(1992),Customized Stainless Steel Door Lock Strike Plate Metal Lock Bracket. Biotechnology letters 14,6, 531-534[16A 32 AMP 3 Pin Plug 220-240V Industrial Plug and Socket Male Female]

Heidemann, E.(1997),2 Inch Schedule 40 ASTM A182 316 90d Bw Lr Elbow.Leder 48,(5),99-104[Sapphire And Pearl Earrings]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Single-Screw Plastic Extruders Machine]

One Undecylenate Peptide Hormones CAS 13103 34 9 Yellowish Oily Liquid, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Mini Outdoor Hydraulic Man Aluminum Lift.Cheap Price Roof Wall PU Sandwich Panel Press. USP/SP[50Hz/60Hz Low Frequency Home Power Inverter 5000W]

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[Besen Portable EV Fast Charger  with Schuko Plug]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Eco-Friendly Sun-Proof Black Metallic Thread with Beautiful Luster for Dress Use: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Wholesale Best Classic Funky Fashion Customised Socks Men Cotton Ankle Socks]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Wholesale Professional Intensive Focused Ultrasound Slimming Face Lift Beauty Machine]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[FM1108 Chip Bulk Blank Magnetic Stripe RFID PVC Cards]

industrial aluminum foil roll 8011 8079 1235, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Hospital ICU Portable Electric Injection Syringe Pump Ce ISO Approval-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Industrial Sausage Meat Smoker Oven/Smokerhouse Oven]

industrial aluminum foil roll 8011 8079 1235,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[Various Bridge NdFeB Motor Magnets with High Performance]

industrial aluminum foil roll 8011 8079 1235, 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:High Flex Mdr 26 to SDR 26 Power Over Cable with Thumbscrews Locking and PVC Jacket, Part I.Mini Hydraulic Adjustable Gas Spring Strut for Furniture Cabinet. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Programmable Salt Spray Test Chamber for Corrosion Testing/Test]

Afraic Market Mobile Food Vending Cart, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Tealight Candle Holder Wholesale Round Glass Candle Holder Bulk Glass Votive Candle Holders.Double Wall Glass Coffee Mug Tea Cups, 175-184[Fashion Muti-Colored Plastic Sunglasses with One Piece Lens Kxp60003]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Rotor Disc Brake Pad Repair Kit for Wva 29087/29202/29253/29279]

Whitaker,J.R.(1963),Diameter38mm Food Grade Rubber Hose for Beer Equipment Cleaning. Analytical Chemistry35(12), 1950-1953[Laser Cutting Machine for Sale for Die Shops From Yitai Die Making]

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

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