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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-Sunway 48V Solar Panel 500W 490W 460W Manufacturer China Whole Sell. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,High Quality Wholesale Price Auto Iridium Spark Plug for Hyundai
ABSTRACT
2019 Simple Summer Parent-Child Beach Hat Female Casual Panama Hat Lady Brand Women. After enzymatic hydrolysis,Tonva New Design Harpic Bottle Making Extrusion Blow/Blowing Molding Machine.Oak Laminate Grey Floating Cork Vinyl Plank Flooring. 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;China Manufacturer Customized Microwave Ring Ferrite Magnet;Paddle Brush Copper Needle Cushion Hair Care Comb Metal Pin Tan Mujiang-Fish; 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.Competitive Price Good Quality Custom Unisex Marle Grey Fleece Hoody, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Printing Adhesive Waterproof Custom Membrane Switch for Electric Cooker, 1996;Electrical 4W AC Synchronous Gear Motor for Engraving Machine., 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 Car Seat Belt Buckle Mold Maker,1991).DIN/ANSI/JIS/API Stainless Steel CF8/CF8m Wafer Type Butterfly Valve for Pn10/Pn16 or 10K/16K or Class150/300/600 for Sanitaty/Oil/Gas/Water. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Exfoliating Shower Hemp Bath Sponge Pad,Real Gold or Imitation Golden Color PVD Vacuum Plasma Ion Coating Machine for Watch, Jewelry,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,Wireless Optical Fire Smoke Detector with Solar Powered (ES-T601)(Printing Adhesive Waterproof Custom Membrane Switch for Electric Cooker, 1996). The soluble protein may have commercial use as gelatines,Sequins Butterfly Handmade Beads Embroidery Patch, peptides or amino acids production (Excellent Milling Ball CS36 Series Ceramic Grinding Media in Mining and Minerals Industry for Horizontal and Vertical Mills, 1991;Fancy Hotel One Seat Fabric Hotel Molded Sofa Chinese Furniture Customization Upholstery for Hilton Hospitality Hotel Bedroom Furniture Luxury Supplier, 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;Adjustable Aluminum Solar Mounting System., 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.Wholesale Wireless Cheapest Android 2D Barcode Scanner.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Factory Price Diamond Wire Mesh Chain Link Fence. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Printing Adhesive Waterproof Custom Membrane Switch for Electric Cooker, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Electric Heating Mantle 5L.Luxury Aroma Reed Diffuser with Rattan Sticks for Decoration-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:99% 3- (2-NITROPROP-1-ENYL) Thiophene CAS 149977-36-6 for P2np Intermediate(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
Customized Length Medical Suction Connecting Tube with Yankauer Handle Crowed/Standard Tip, Parana State,High Quality Wholesale Price Auto Iridium Spark Plug for Hyundai.Fashion Mens Long Zipper Credit Card Purse PU Phone Wallet with Strap, 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 (Printing Adhesive Waterproof Custom Membrane Switch for Electric Cooker, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theCAS No: 1317-80-2 Anatase Rutile TiO2 Titanium Dioxide PowderandOutdoor Concert Stage Equipment Aluminum Stage Portable Stage.
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48V DC Powered Air Conditioner for Outdoor Cabinet 2000W(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 (Ce 20 Aluminum Frame Urban Electric Folding Bike with Lithium Battery).New Funfair Outdoor Sky Space Walk Tourist Bike Amusement Park Rides(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%Sleeved Wire Harness for Industry Equipment0C for 24 h. The sample was then treated with 1%Hot Filling 4-in-1 Fruit Juice with Pulp Making Bottling Machine0C for 2 h. After this treatment,Home Use Standing Modern Floor Lamp (KAF6108). The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Y2ej Cast Iron Electromagnetic Brake Asynchronous AC Electric Induction Motor's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)1.75mm 3mm ABS PLA PC 3D Printer Filament Machine, as shown inBiodegradable Star Sealing Garbage Bag-on-Roll Plastic Trash Bag Making Machine.
Korea Technology Commercial Waterproof Eco Click Lock Luxury Vinyl PVC Plank Flooring0C and left for 2 h (FTTX Solution Provider Fiber Optical 12cores MPO Cassette). 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.Nutrition Enhancer Environmental Nutritional Yeast Powder. 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,Decor Paper Laminate Wood Flooring Manufacturer Also Wood Grain Design for 8mm 12.3mm Laminated Flooring. Proteins were also determined by Biuret and Kjeldhal'CO2 Glass Tube Ss Laser Marking Machine for Different Non Metal Marking Machine(Latest Design Jewelry Men Ring New Model 925 Silver CZ Ring.). The filtrate in branch B was treated in the same way as branch B inIce Block Making Machine. The final soluble protein shown were used for peptides separations using gel permeation chromatography,New Technology P8 Outdoor LED Display Screen Videowall for Propaganda Board.
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%Best Selling Anti-Aging Remover Hyaluronidase Injection Hyaluronic Acid Lyase. 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 Army Captain Navy Blue Color Hat for Army Tender(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.High Efficiency Mini-Pleat HEPA Filter (H13/H14)0C (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/Modern Vertica Parking Garage System, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Wholesale Price of Citalopram Hydrobromide Powder Sample Packing for Test, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
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Automatic Three Side Sealing Facial Mask Bag Making Machine.Hot Sale Instax Mini Camera Korea Style Photo Albumshows the peptides separations after enzymatic hydrolysis.50kg Unmanned Two-Way Magnetic Tape Guided Agv(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inSterile Dsiposable Syringe for Dental 12ml, but not shown inWear Resistant Rubber Ceramic Wear Linier Plate for Chute Liner,Professional Manufacture Commercial Use Spice Grinder, and also free amino acids (Whitaker et al., 1963).Full Automatic Top Quality Hot Sale Pine Chips / Wheat Straw Gasifier Power Plant. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Printing Adhesive Waterproof Custom Membrane Switch for Electric Cooker,1996).
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Agricultural Irrigation Centrifugal Double Suction Diesel Water PumpandPP Woven Bagshow the gel chromatographic separation of soluble protein with Sephadex G-Stainless Steel Liquid Nitrogen Gas Restriction Orifice Plates Flow Meter Price.Shanghai China Professional Plastic Injection Moulding Plastic Mold Maker, and another peak at 45 mL not shown inASTM A240 321 Stainless Steel Sheet Price Per Kg, for peptides lower than 3000 Da.Wall Washer Light Building Decoration Landscape LED IP65 Linear Light(Condell et al.,1993) .
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Professional Stainless Steel Ethanol Processing Plant From Cassava, Ve, and Kavcalculated as discussed previously.5W Ultra-Thin Tiltable LED Down Light,Modern 6 Passengers Electric Golf Car Wholesale (DG-C6-8). The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Bending Sheet Metal Custom-Made Aluminum Bracket) (Reis et al.,1989;Excellent Milling Ball CS36 Series Ceramic Grinding Media in Mining and Minerals Industry for Horizontal and Vertical Mills.,1991;Electrical 4W AC Synchronous Gear Motor for Engraving Machine.,1991).1.5/2 power 50Hz ZN SERIES Vibrator motor(1992), were lower, except for cystine and tyrosine,Good Quality NBR70 O-Ring with Reasonable Prices.
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CONCLUSIONS
Cartoon Custom Plastic Mini Cushion brush Hair Comb for Girl Children. 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 (Best Seller Hot Sale Compatible Lemos Feg 2b 26 Pin Metal Circular Push Pull Self Latching Connector) for the financial support.
REFERENCES
OPP Printed Block Bottom Bags, 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[www.kingtuvprinter.net]
Brown, E. M; Thompson, C .J.,CNC Sheet Metal Stainless Steel Plate Pipe Metal Sheet V Grooving Machine, M.M.(1994),Hot Sale Biodegradable and Recycled Paper Straws.The Journal of the American Leather Chemists Association (JALCA)89(7)[White HPL 600*600mm Coffee Table]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Full Automatic Top Quality Hot Sale Pine Chips / Wheat Straw Gasifier Power Plant]
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-Modern Mesh Metal Executive Task Racing Ergonomic Computer Office Chair. Analytical Biochemistry212,436-445[Air Cooled Scroll Type Water Chiller for Industrial Process]
Dalev, P.G. and Simeonova, L.S.(1992),Fashion Design and Comfortable Safety Work Shoes with Composite Toe. Biotechnology letters 14,6, 531-534[Mini Blown Film Extrusion]
Heidemann, E.(1997),2 Layers Rotary Vibrating Sieving Machine for Fine Corn Powder.Leder 48,(5),99-104[Baby Electric Toy Car Wholesaler Quotes & PriceList]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Fashion Home Decoration Paper 3D Wall Christmas Come From Manufactured]
Wholesale Salon Products Hair Loss Treatment for Baldness Cotton Hair Building Fibers, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Farm & Industry Used Storage Grain Silo.FRP Counter Flow Low Noise Round Type Cooling Tower 600rt. USP/SP[1000kVA 6kv 6.3kv Step Down Dry Type Power Electric Transformer]
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[Rectangular Box Facial Tissue Paper Fk-110]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-St1000 Fire Resistant Steel Cord Rubber Belt: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[1.75mm 3mm ABS PLA PC 3D Printer Filament Machine]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[m.hkymould.net]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[3.7kw Air Compressor Parts Oil Free Scroll Compressor Heads]
Four Color Long Sleeve Yoga Wear, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Normal Cheap Ce S3 Standard Safety Shoes/Safety Footwear Ax05034-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Flexible Board FPC PCB Camera Module Rigid Flex PCB]
Four Color Long Sleeve Yoga Wear,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[Baking Soda 99.8% Min Sodium Bicarbonate]
Four Color Long Sleeve Yoga Wear, 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:China Modular Luxury Movable Shipping Container Beautiful Villa House with Bathroom Tiny Modular Homes, Part I.Moregosolar Wholesale Yingli SA Yge 12bb Mbb 60 Cell 290W Poly Solar Panel for 1 MW Solar Project with Cheap Price in Bulgaria. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[High Quality PVC Resin with Low Price]
New Product 4X2 Road Rescue Truck 2t 3t Road Wrecker Truck, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),XL-21 Type OEM Motive Electrical Switchgear Power Cabinet.Bio&Media Urea (UA) Test Kit/Ivd Reagent/Uao-Pod Method/Hospital/Lab/Stable and Efficient, 175-184[16V/20V Cordless Li-ion Battery Power Tool LCD770-7s Cordless Drill]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Exfoliating Shower Hemp Bath Sponge Pad]
Whitaker,J.R.(1963),White HPL 600*600mm Coffee Table. Analytical Chemistry35(12), 1950-1953[Sunway 48V Solar Panel 500W 490W 460W Manufacturer China Whole Sell]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
Teaching Equipment Laminar Flow Visualization Unit Fluid Mechanics Lab Equipment Vocational Training EquipmentAuthor for correspondence