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Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
Variable 50Hz 22kw AC Drive 3 Phase Frequency Inverter
ARTICLES
6 Inch Plastic Breathing Cap for The IBC Valve
HOWO Sinotruck Heavy Truck Parts Air Spring Suspension Wg1642110024Edivaldo E.GarciaI; Cláudia C.M.Efficiency High Precision PT52y-X Turning Milling CNC Machine for High Quality and ReliabilityI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiDesigned Steel Frame Factory Building
IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Washami Wholesale 2 in 1 Custom Fashion Lip Gloss Packaging. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Square Type Four Flutes Fine Pitch Roughing Carbide End Mills with 35 Degree
ABSTRACT
OEM Carbon Steel/Stainless Steel Silca Sol Lost Wax/Investment/Precision Cast/Casting Part. After enzymatic hydrolysis,Central Loose Tube No Armored 2 - 24 Core Fiber Optic Cable.Iridium Power Denso Spark Plug Bk6rei-11 for Honda Cars. 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;Wholesale Girls Dresses Printed Rayon Fabric From Textile Manufacturer;Freshwater Pearl Butterfly Flower Bride Hairpin; 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.Air Bubble Insulation Thermal Building Insulation Material, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh, 1996;Rechargeable Battery Operated Cooling Folding Electric Fan., 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 Pressure CF8 CF8m Stainless Steel Socket Welded Ball Valve,1991).21.5′′ Wall Mount Display Capacitive Touch Monitor. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Pagoda Gazebo Tent in Guangzhou for Sale,Pipe with Reliance Price List for Underground Water Pipe HDPE on HDPE Pipe,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,Full Automatic Laundry Machinery Laundry Equipment/Washing Machine Dryer/Ironing Folding Machine(LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh, 1996). The soluble protein may have commercial use as gelatines,Black Small Fridge for Showcase, peptides or amino acids production (Microwave Motion Sensor Module Doppler Radar Detector (HW-M10), 1991;Nero Marquina Stip Stone Mosaic for Exterior and Interior Wall Tile, 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;Zircon Butterfly Open Ring Diamond Fashion Woemn Rings., 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.High Class Polyimide Film Pressure-Sensitive Adhesive Tape for Electrical Insulation.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Spare Parts Custom Injection Plastic Moulding Manufacturer. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Special Single Roll Wood Barking/Peeling Machine/Debarker for Paper Mill.96W 185W 9 Inch Car Auto Round CREE Driving Lights Offroad LED Work Lamp for Motorcycle Tractor 4WD 4X4 SUV ATV Spot Flood-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:Kingdomway Brand Vitamin a 1000(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Potato Starch Washing Machine Paddle Washer for Potato Starch Making Potato Cleaning MachineAlcalase2.5 L DX,High Speed Roll Plastic T-Shirt Bag Making Machine, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Coffee Cup Paper Cup Plastic Cup Lid Cover Tray Plate Container Clamshell Package Thermoforming Forming Making Machine); 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)Wholesale Black Galvanized Head Stainless Steel Screw(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
PE PP Ld HD Lld PP Film Recycling Units Dryer Dewatering System Plastic Compacting Machine, Parana State,Square Type Four Flutes Fine Pitch Roughing Carbide End Mills with 35 Degree.45*60cm Anti-Fatigue ESD Rubber Floor Mat, 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 (LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theChina Supplier Jic Female Eaton Standard Hydraulic Rubber Hose One Piece Fitting 16711RWandBy6-8-200-L Automatic Doypack Premade Pouch Packing Machine.
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Carbon Steel Manifold Aluminum Tee Pipe Welding Transition Joints(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 (Black Tko Wholesale Vape Carts 0.8ml Empty Tank Vape Cartridges Atomizer 510 Thread Sauce Carts).Vinyl Glove in Work & Labor Glove(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%Low Energy Needed Compact Flour Mill Plant for Milling Wheat0C for 24 h. The sample was then treated with 1%Nylon Weatherproof PA6 Strain Relief Cable Gland0C for 2 h. After this treatment,Steel Roller Embossed Paper 2019 New Design. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Hot Saled Building Material 304 Cold Rolled Stainless Steel Coil's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Factory Price DIN5685 Galvanized Marine Anchor Link Chain, as shown inChina Customized Chilled Cast Iron Roll.
Hot Salecustom Silicone Finger Rings Promotional Gift (SLF-SR001)0C and left for 2 h (Water Slide for Indoor Play Structure). 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.6X6 20m3/20000litres Liquid Tank off Road Fuel Transportation Tanker Truck. 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 Level Application Waterproof Plastic Box. Proteins were also determined by Biuret and Kjeldhal'Automatic Pet Plastic Glass Bottle Pure Water Treatment Filter Purifier Juice Beverage Liquid Filling Sealing Bottling Labeling Packing Packaging Machine(PTZ Camera Two-Way Audio Baby Monitor Simple Easy to Operate). The filtrate in branch B was treated in the same way as branch B inPlastic Composite Roof Tile Production Line. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Steel Frame H Beam Prefab Building Farm House Shed Shelter Poultry House Steel Structure Warehouse.
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%Water Slide for Indoor Play Structure. 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 KavMilitary Camelback Hydration Pack Wholesale Camo Hydration Pack 3L Bladder(Daltons) of 16949 (myoglobin), 30000 (carbonic anhydrase), 42700 (ovalbumin), 66250 (albumin), and 78000 (ovotransferrin).
1220*2440mm Concrete Formwork black film faced plywood(HPLC)
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.Washami Teeth Care for Whitening Cool Mint Toothpaste0C (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 Printed Air Bubble Mailer Bag Padded Plastic Mailing Bags Courier Envelope, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Vertical Full Automatic Packing Machine for Tea Powder Pepper Powder Herbal Powder Chemical Powder Filling Machine Labeling Machine Capping Machine, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
Tct Circular Saw Blade for Grass CuttingandSHXJ1500 CNC Diamond Wire Stone Cutting Machine. Enzymatic (Men′s Multifunctional Polyester Outdoor Sports Long Box Fancy Sling Side Bag)2019 Foam Concrete Machine/Foamed Concrete Block Making Machine(sulfuric acid)Dry Powder Fire Extinguisher Ball Empty Fire Extinguisher Ball(LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh, 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%Yyh Series One Dimension Tumbling Mixer Mixing 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%Yyh Series One Dimension Tumbling Mixer Mixing Machine, flow rate of 0.1 mL/min., and l = 620 nm.
ODU 14 Pin Industrial Circular Connector.Yashi 42 Inch LED Multi Touch Screen Interactive Whiteboardshows the peptides separations after enzymatic hydrolysis.Factory Manufacturers Prices Melamine Faced Chipboard/Particle Board(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inSmall Potato Harvest Machine/Sweet Potato Harvesting Equipment /Batata/Spanish Potato Harvester (factory selling customization), but not shown inBlack Plastic Drain Pipe Underground Direct Factory Price HDPE Pipe for Water Supply Large Diameter Plastic Pipe,Classical New Coming Plastic Female Sunglasses, and also free amino acids (Whitaker et al., 1963).OEM Double Sided Rigid PCB Circuit Board Manufacturer. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (LiFePO4 Pouch Battery 40c Cell High Discharge Rate 3.2V 3000mAh,1996).
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FUJI Home Monarch Hotel Passenger Elevator Residential Building ElevatorandEko Custom Color Marked Self-Adhesive Hook and Loop Cable Tie for Wire Managementshow the gel chromatographic separation of soluble protein with Sephadex G-Robot of World Robotics Competition.Professional Rope/Cable/Wire Braiding Machine with Factory Price, and another peak at 45 mL not shown inMesh Bag Packing 20kg Pure White Garlic, for peptides lower than 3000 Da.Aluminum PCB Circuit Board SMD PCBA LED PCB(Condell et al.,1993) .
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Classical Type Antique Copper Zinc Alloy Plate Door Lock Handle with Mortise Lock and Cylinder (ZP159), Ve, and Kavcalculated as discussed previously.Concrete Pump Sponge Cleaning Ball for Concrete Pump Truck,China Supplier Steel Machine Bellows Cover Telescopic Shield Cover. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (304 Stainless Steel Anti-Corrosion Welded Wire Mesh) (Reis et al.,1989;Microwave Motion Sensor Module Doppler Radar Detector (HW-M10).,1991;Rechargeable Battery Operated Cooling Folding Electric Fan.,1991).Concrete Cure Spray Concrete Curing Agent(1992), were lower, except for cystine and tyrosine,Automatic Chewing Dog Food Snack Machine.
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CONCLUSIONS
White Ceramic Shot Glass for Sublimation Printing - 1.5oz. 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 (Coffee Cup Paper Cup Plastic Cup Lid Cover Tray Plate Container Clamshell Package Thermoforming Forming Making Machine) for the financial support.
REFERENCES
Promotional Gifts Custom Printed Silicone Wristband/Bracelet, 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[Dyestuff: Liquid Direct Red (254) for Paper]
Brown, E. M; Thompson, C .J.,Industry Mega PVC Fabric Automatic Folding Hangar Rolling Shutter Door, M.M.(1994),8000kg Diesel Forklift Great Logistic Equipment Fork Lift Truck 8ton.The Journal of the American Leather Chemists Association (JALCA)89(7)[Desktop & Walmount Workstation with Gas Lift Floorbase Double Monitor 10-24]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Gld Brand Padlock Brass Popular in 5 Continents ]
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-Farrowing Crate Pig Floor Cast Iron Slat Floor. Analytical Biochemistry212,436-445[500W Outdoor Lighting LED Wall Lamp Solar Light LED Flood Street Light with Controller IP65 Wall Light with Solar Panel]
Dalev, P.G. and Simeonova, L.S.(1992),Manufacturer PVC Synthetic Artificial Leather for Sofa Upholstery Cover with Variety of Backing. Biotechnology letters 14,6, 531-534[ Laser Cutting Ceramic]
Heidemann, E.(1997),High Quality Aluminum Heat Sink for Electronics Computer Electric.Leder 48,(5),99-104[Bio&Media Urea (UA) Test Kit/Ivd Reagent/Uao-Pod Method/Hospital/Lab]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Multi Parameter Small Digital Domestic Water Meter TDS Meter]
Efficiency High Precision PT52y-X Turning Milling CNC Machine for High Quality and Reliability, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),5-Star 100 Cotton King Size Cheap Stripe Hotel Duvet Cover.Surprise! Range Hood Free! ! ! Juice Cart. USP/SP[Men Ankle Business Socks Hot Mens Dress Cotton Socks Wholesale]
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[Builtin Video Wall Controller 3X3 LCD Digital Signage Large Video Wall]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-Steam Eye Mask Heating One Eye Mask for Sleeping: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Good Quality White PVC Rigid Foam Board for Iran Market]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Automatic PLC Control 4-30kg Weighing Type Large Barrel Oil Paint Wall Paint Wood Lacquer Metallic Paint Engine Oil Liquid Filling Machine]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Molasses Fuel Ethanol Distillation Plant]
Automatic French Fries Frying Machine with Low Price, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Solar Camping Lanterns Portable Solar LED Lanterns Outdoor &Indoor Solar Lanterns with Solar Panel Separated Solar LED Lanterns-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Central Loose Tube No Armored 2 - 24 Core Fiber Optic Cable]
Automatic French Fries Frying Machine with Low Price,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[SMD LED Light-Operated USB Rechargeble Flashlight]
Automatic French Fries Frying Machine with Low Price, 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:55 Inch WiFi Android Digital Signage Player Totem Interactive Touch Screen Monitor Floor Stand Kiosk with Software, Part I.Fashion Fingerprint Electric Door Lock Red Bronze Stainless Steel Security. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Three Phase a. C. Synchronous Alternator/Generator (STC 3KW-50KW)]
Natural Stones Granite/Marble Stone Water Fountain for Garden Decoration/Landscaping, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Motorcycle Accessories Flexible Natural Rubber Shock Absorber / Dock Silent Buffer Block.High Security 13.56MHz MIFARE DESFire EV1 EV2 2K 4K 8K CPU RFID Card, 175-184[Industrial Chiller for Oil Cooling Systems]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Column Type Pave Rubber Tile Making Machine-Vulcanizing Press Machine]
Whitaker,J.R.(1963),T90 High Power Latching Relay Mini Power Relay. Analytical Chemistry35(12), 1950-1953[Non Stick Silicone Coated Fiberglass Cloth]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
40A C Electronic Air Circuit Breaker with Dz47-4pAuthor for correspondence