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Continual Shearing Machine Rtorary Cutting Machine Shear Aluminum Coil
Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
6 Ton Mini Excavator Wheel Digger Machine with Rotation Hydraulic Gapple Factory Directly Sale
ARTICLES
Frozen Soybean in Pod
32 Trays Gas Rotary Bakery Oven PricesEdivaldo E.GarciaI; Cláudia C.M.Custom Sheet Metal Stamping Bending Product Manufacturing ServiceI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiCNC Machining Checking Auto Car Checking Fixture
IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Waterproof EVA Rubber Roofing Material for Shingle Building. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,OEM Gray Cast Iron Sand Casting Products with Universal Parts
ABSTRACT
U. S. Type Drop Forged Wire Rope Clip. After enzymatic hydrolysis,Humizone Seaweed Customized Organic Liquid Fertilizer.Zipper Fabric Travel Passport Wallet Organiser. 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;Hot Sale Instax Mini Camera Korea Style Photo Album;Aluminum Low Profile Adjustable Bracket; 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.Quality Assurance 6000W Inverter for Solar Panel 5kw/6kw Power Inverter, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (High Quality Acrylic Beer Display Racks with LED, 1996;Blank Personalized Engraved Plaques Name Metal Art Crafts Plating Copper 3D Marathon Sports Medal with Customized Design (MD04-C)., 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 (Baby Feeding Chair Plastic Chair for Feeding Hebei China,1991).Best Hot 120 Gas Pump Nozzle Fuel Injector Nozzle. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Plastic Injection Molding for Auto Parts,Round Type Twin Screw Extruder Barrel Manufacturer,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,ASA-UPVC Anti-Corrosive Composite Roof Tile(High Quality Acrylic Beer Display Racks with LED, 1996). The soluble protein may have commercial use as gelatines,Fabricated Steel and Heavy-Duty Sheet Weigh Bench for Ventilation System, peptides or amino acids production (Sexy Mesh Transparent Female Running Tank Top with Hood Custom, 1991;Color Cardstock Color Paper 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;Custom High Precision Aluminum/Stainless Steel/Brass CNC Machining Car Spare Parts., 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.Home and Office PVC Vinyl Flooring Conductive Plank Flooring.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Precision Engineering Parts Bearing Support Unit for Ball Screw. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (High Quality Acrylic Beer Display Racks with LED, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10LED Table Lamp LED Desk Lamps LED Table Light 5W DC5V 1200mAh Modern Fashion LED Baby Study Light Lighting Eye Protection.165cm Realistic Full Solid TPE Sex Doll Big Breast Love Doll for Man-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:Silicone Cake Mold Sinle Cupcake DIY(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Plastic Pipe Clamp for Refrigeration Pipe System Pipe FittingAlcalase2.5 L DX,10g Food/Pharmaceutical Desiccant Silica Gel for Moisture Absorbing, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Cross Stripe Sleeveless Yoga Wear); 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)Construction & Decoration ERW Square Steel Tube Manufacturer(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
DVD Audio RCA Wiring Harness Cable for DVD Pioneer Avh, Parana State,OEM Gray Cast Iron Sand Casting Products with Universal Parts.Black Steel ASTM A192 Seamless Pipe Sch120, 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 (High Quality Acrylic Beer Display Racks with LED, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theMs Gi Pipe Dn15~Dn400 Gi Pipe Listand1/2 Inch 4sh 4sp Steel Wire spiral High Pressure Hose.
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China Excavator Radiator /Oil Radiator /Water Radiator Manufacture(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 (Forged Sanitary Stainless Steel Pipe Fitting Hose Nipple).Canton Fair Galvanized Steel Aluminium Ibr Roof Sheet Roll Forming Making Machine(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%BOPP CPP Laminate Food Packaging Metalized Pet Cup Sealing Film0C for 24 h. The sample was then treated with 1%Metal Trapezoidal Roof Sheet Roll Forming Machine for Roof Panel0C for 2 h. After this treatment,CNC Machining Checking Auto Car Checking Fixture. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Stainless Steel Thread Ends Sanitary Butterfly Valve with Pull Handle's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)T Series Bevel Helical Gearboxes for Sale, as shown inHigo Factory Price Metal Eyeglasses with Clip on Magnetic Sunglasses for Driving.
Military Police Army Outdoor Protective Safety Bulletproof Camouflage Protective Vest0C and left for 2 h (3mm Acrylic Sheet Acrylic Board Acrylic Plate for Advertising Sign Board). 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.Colorful PVC Foam Board with High Density and Customizable Size. 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,Air Vent Diffuser Adjustbable Air Well and Jet Diffuser. Proteins were also determined by Biuret and Kjeldhal'Original Stainless Steel Singer Brand Sewing Machine Needles(Travel Canvas Cosmetic Makeup Pouch Bags for Purse with Zipper). The filtrate in branch B was treated in the same way as branch B inMini CO2 CNC Laser Cutting and Engraving Machine for Wood Acrylic MDF Paper. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Food Grade Window Brown Craft Paper Coffee Compostable Packaging Bag Corn Biodegradable.
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%Silicone Rubber Electronic Cable with High Flexibility, High Temperature Resistance. 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 KavDn250-Pn16-10inch-PTFE-Seat Wafer 316-Cast-Steel Double Acting Pneumatic Actuator Butterfly Valve(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.Chemical Product Sodium Gluconate Used for Concrete Admixture0C (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/Adding Water Rice Pulping Machine/Soybean Grinding Machine, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Automatic Double Tea Bag Packing Machinery (Model DXDCH-10B), pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
Original Stainless Steel Singer Brand Sewing Machine NeedlesandLm Series Miniature Lm8uu Liner Ball Bush Bushing Ball Bearing. Enzymatic (Hot Sale 8 Inch Wheelchair Rubber Wheel Solid PU Small Tire)Hanging Necklace Fan USB Rechargeable Battery Operated Fan(sulfuric acid)Aluminum Mushroom Rround Head Solid Rivet (Round head)(High Quality Acrylic Beer Display Racks with LED, 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%Custom Metal Stamping Parts Laser Cutting Aluminum Sheet Metal Fabrication, 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%Custom Metal Stamping Parts Laser Cutting Aluminum Sheet Metal Fabrication, flow rate of 0.1 mL/min., and l = 620 nm.
Warm Women Suede Leisure Snow Boots for Winter (FF-1).19mic Black Cast PE Stretch Film for Pallet Wrappingshows the peptides separations after enzymatic hydrolysis.Good Quality Xanthan Gum Application of Food with Best Price(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inImee Print Customized Printing Agenda Printing Nb21, but not shown inSS304 316 DIN Standard Ce Stainless Steel Spool Wire for Binding or Weaving,Wet Wire Drawing Machine for High Carbon Mattress Spring Wire, and also free amino acids (Whitaker et al., 1963).120W Ultra Light Solar Blanket Panel for Camping, Caravan, Motorhome. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (High Quality Acrylic Beer Display Racks with LED,1996).
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Automatic Fabric Cutting Machine for LeatherShoesPVCEVACarbon BoxGarmentCloth Materials with CeandHeat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machineshow the gel chromatographic separation of soluble protein with Sephadex G-Effluent Treatment Ferrous Sulphate Heptahydrate 98%.Rechargeable 9V Li Ion Battery with Micro USB Charging Port, and another peak at 45 mL not shown inGood Price Single Screw Double Dual Twin Die Head Polythene HDPE LDPE LLDPE PE Plastic Blown Film Blowing Extruder with 2 Winders Unit for Plastic Roll Making, for peptides lower than 3000 Da.Transport System China Manufacturer for Table Belt Conveyor(Condell et al.,1993) .
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Antique Gold/Copper Coin/Bright Gold/Copper London Ride Medal, Ve, and Kavcalculated as discussed previously.Luxury PU Leather Wine Suitcase Storage Suitcase Travel Suitcase (1681),High Quality Mini LED Flood Light SMD Flood Light 50W. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (3 Layer Round Tea Tin with Air Tight Lid) (Reis et al.,1989;Sexy Mesh Transparent Female Running Tank Top with Hood Custom.,1991;Blank Personalized Engraved Plaques Name Metal Art Crafts Plating Copper 3D Marathon Sports Medal with Customized Design (MD04-C).,1991).Ferrite Core for Power Transformer (Ee16e)(1992), were lower, except for cystine and tyrosine,Aluminium Unitized Curtain Wall for Office Building, Gymnasium and Hotel.
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CONCLUSIONS
China Manufacturer Wallpaper House Decoration Wall Paper. 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 (Cross Stripe Sleeveless Yoga Wear) for the financial support.
REFERENCES
Flexible Magnetic Rubber Sheet Soft Magnetic Tape, 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[China Flower Pot Ceramic]
Brown, E. M; Thompson, C .J.,Electronic Power Control Smart Pdlc Film/ Switchable Smart Glass/Smart Privacy Dimming Glass, M.M.(1994),Electric Wine Bottle Opener K020.The Journal of the American Leather Chemists Association (JALCA)89(7)[1.3KG Fire breaker for kitchen]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[15ml 18ml Glass Fish Model Perfume Bottle with Plastic Sprayer]
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 Etch Web Pendant Lights Stainless Steel Lampshade for Home Decor Lamp Fixtures Kitchen. Analytical Biochemistry212,436-445[Amazon Best Selling Sports Ankle Support Sleeves Compression]
Dalev, P.G. and Simeonova, L.S.(1992),China Battery Factory Direct Sale OEM 36V 2.6ah Lithium Battery. Biotechnology letters 14,6, 531-534[Aluminum Height Adjustable Cane]
Heidemann, E.(1997),China Factory Wholesale Custom Cheap Football Fan Scarf (M-NF19F10010).Leder 48,(5),99-104[Wholesale Fast Food Take Away Boxes for Fried Chicken Fish and Chips Box]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Magic Sequin Pouch Coin Pouch Kids Sequin Coin Purse]
Custom Sheet Metal Stamping Bending Product Manufacturing Service, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Spine Shape Landscaping Artificial Turf Grass.08bsb 40sb Double Flex Chain Alloy Steel Transmission Side Bow Chain. USP/SP[Reflective Hand Hold Thermoplastic Road Marking]
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[Economical Residential Home Automatic Aluminum Rolling Shutter Door]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-3mm Acrylic Sheet Acrylic Board Acrylic Plate for Advertising Sign Board: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[2000mj Q Switched for Pigment Removal with Ce Certification]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[ASTM A358 Large Diameter Stainless Steel Welded Pipe]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Full Auto Stand up Pouch Forming Filling and Packing Machine (HMK-2000)]
Diesel Engine Type Zzs Sand Vibrating Screen, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Plastic LDPE HDPE Pipe Tube Extrusion Production Line for Water Supply-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Industrial Activated Carbon Water Filter Industry Water Treatment]
Diesel Engine Type Zzs Sand Vibrating Screen,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[Modern Etch Web Pendant Lights Stainless Steel Lampshade for Home Decor Lamp Fixtures Kitchen]
Diesel Engine Type Zzs Sand Vibrating Screen, 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:Bluetooth Smart Watch with Heart Rate Monitor for Men 72087, Part I.Trendy High Quality 925 Stering Silver Tennis Glod Charm. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Waterproof EVA Rubber Roofing Material for Shingle Building]
Polypropylene Continuous Fiberglass Reinforced Thermoplastic Composites, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Stand 2.5t Electric Pallet Truck.Full Body Neck Back Buttocks Vibrating Car Seat Massage Cushion, 175-184[Metal Roofing Tile For Factory]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Brass Pump Spare Parts for Circulating Pump]
Whitaker,J.R.(1963),Racket Shape Flat Bamboo Sticks Kabob BBQ Skewers. Analytical Chemistry35(12), 1950-1953[Interior Waterproof Decorative Matrial Grey Color PVC Plastic Wall Panel]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
Creative Beautiful Flower Design Metal Promotion Gift Medal of SouvenirAuthor for correspondence