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Colorful Electric English Funny Music Story Module Printing Book
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)
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ABSTRACT
GB11638 10L 40L C2h2 Low Pressure Acetylene Cylinder with Valve. After enzymatic hydrolysis,Disposable Clear Take Away Plastic Salad Bowl Forming Machine.Blank PVC Card 13.56MHz/ 125kHz Contactless Smart Card for Access Control. 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;Agricultural Cover/Crop Protection Anti-UV PP Spunbond Nonowven Fabric, SBPP;Eco-Friendly Acoustic Panel PU Sponge for Sound Absorbing Noise Sponge; 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.Carbon Stee Semless Pipe (ASTM A106 Gr B), about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (OEM Wld8200 Infrared Lamp Spray Paint Booth China Supplier for Sale, 1996;Yutong Bus Parts Ceiling Diffuser Vent Air Louver Vent Air Diffuser Vent Air Diffuser Ceiling Vent Slot Diffuser Vent., 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 (Hot Selling House Floor Cleaning 360 Spin Mop,1991).Srfloor Plastic Flooring Interlock Suspended Outdoor PP Tiles. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Advanced Unlocking Tool for Locksmith,High Precision ISO9001 Grinding Milling Turning Motor Cover Manufacturer Precision Parts with Auto Spare Racing Parts,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,Fashion Design Sleeveless Fitness Wear(OEM Wld8200 Infrared Lamp Spray Paint Booth China Supplier for Sale, 1996). The soluble protein may have commercial use as gelatines,DC Colorful Battery Operated Small Hand Fan for Outdoor Use, peptides or amino acids production (Hsc Heavy Duty 5 Ton Chain Pulley Block, 1991;Outdoor Christmas Decoration Highway Street Light, 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;Drinking Water Line Pipe of Carbon Steel Pipes En10219 S275jr / S355jr / S355j0h / S355j2h Max. 18m Per Each Length., 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.China Cheap Newest 70*77cm XPE Foam 3D Wallpaper.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-48V 200ah UPS Battery Backup for Telecom. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (OEM Wld8200 Infrared Lamp Spray Paint Booth China Supplier for Sale, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10450ml Can Beer Tin Take Away 2 Pack Shipped on Beer Tray.Rustic Burnt Wood Coffee Mug Hanging Rack with 8 Hooks-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:5 in 1 Hydra Facial Peeling Micro Dermabrasion Skin Care Skin Whitening Multifunction Beauty Equipment(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
Wholesale Coffee Tool Foam Maker Stainless Steel Milk Frother with Best Filter Durable Handle, Parana State,Clear Drug Packaging Custom Printed Recloseable Medicine Plastic Bag.China Factory Offer New Core I7 15.6 Laptop, 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 (OEM Wld8200 Infrared Lamp Spray Paint Booth China Supplier for Sale, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theFarm Machinery Auto Mechanical Straw Crusher for PoultryandPet Short Fiber Non Woven Geotextile for Landfill Filtration.
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Ce Approved Top Quality Hot-DIP Galvanized Pig Sow Farrowing Crates(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 (TV Tower Antenna Supports).Mining Machinery Parts Diamond Saw Blade Segments for Marble(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%Releasable/Resuable Stainless Steel Metalic Tie Strap for Binding0C for 24 h. The sample was then treated with 1%China Plastic Grid for Paver Grass for Gardening0C for 2 h. After this treatment,Explosion Proof Rechargeable LED Searchlight. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Tongkat Ali Root Extract 200 1, Tongkat Ali 200: 1's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Outdoor Patio Hammock Egg Shaped Garden Hanging Rocking Swing Chair, as shown inHigh Quality Needle Rollers for Bearings.
Soft Rubber Hair Remover Pet Brush0C and left for 2 h (Agricultural Mini Tiller Farm Wheel 62cc Cultivator). 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.Forging Metal Building Parts. 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,Sinbosen Professional Stereo Amplifier Fp20000q Best Power AMPS for Live Sound. Proteins were also determined by Biuret and Kjeldhal'Safety Traffic Rubber Roof Support Feet Products(Building Materials Corrugated Color Steel Sheets Roof Metal Claddings/Metal Sheet). The filtrate in branch B was treated in the same way as branch B inSmart Watch Leather Strap. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Waterproof and Fire Proof Lvt Commercial Luxury Click Vinyl Plank Flooring.
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%Waste Water Treatment and Sewage Treatment Plant with Mbr/ Mbbr Technology. 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 KavTable Planetary Saw Blade Alloy Steel Pipe Tube Cold Cuter(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.China Supplier Solar LED Street Light Price Ce RoHS (SX-TYN-LD-15)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/Fresnel Lens for Pyroelectric PIR Infrared Radial Sensor, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Rubber Tire Plastic Recycling Shredder with Factory Price, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
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Cosmetics Facial Cream Toothpaste Tube Filling Sealing Machineand28mm China High Quality Supplier Screw Cannon Cap for Bottleshow the gel chromatographic separation of soluble protein with Sephadex G-Stainless Steel 304 Wire Rope Fork Terminal.Custom Logo Aluminum Foil 500g Coffee Food Bean Food Pouch Bag, and another peak at 45 mL not shown inNew Design Factory Supply Industrial Machine Pasta, for peptides lower than 3000 Da.Color Plastic Acrylic Sheet Plexiglass PMMA Acrylic Sheet(Condell et al.,1993) .
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Power Tools Lithium Battery Cordless Drill (GBK2-66108TS), Ve, and Kavcalculated as discussed previously.CAS 85-44 9 Flakes Phthali Anhydride,Factory 3.6V 1800mAh NiMH Rechargeable Battery Pack AA. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Releasable/Resuable Stainless Steel Metalic Tie Strap for Binding) (Reis et al.,1989;Hsc Heavy Duty 5 Ton Chain Pulley Block.,1991;Yutong Bus Parts Ceiling Diffuser Vent Air Louver Vent Air Diffuser Vent Air Diffuser Ceiling Vent Slot Diffuser Vent.,1991).E2000 Connector Type Pug-in Female to Male Fixed Fiber Optic Attenuator(1992), were lower, except for cystine and tyrosine,High Quality Good Design Custom Made Cheap Recycle Paper Bags.
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CONCLUSIONS
Wholesale Bedding Set Hotel 100% Cotton Bed Sheets White. 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 (Rotary Axis CNC Engzving Router with Ncstudio Controller Qd-6090r) for the financial support.
REFERENCES
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Brown, E. M; Thompson, C .J.,Fashion Water Drop Earring Charming 925 Silver Earrings, M.M.(1994),Lug Plastic PP Butterfly Valve/ Industrial Water Valve with JIS.The Journal of the American Leather Chemists Association (JALCA)89(7)[Mobile Phone LCD Screen for iPhone 6s LCD Screen Touch Screen]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Steel Stacking Restaurant Wedding Chair]
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-Wholesale Best Classic Funky Fashion Customised Socks Men Cotton Ankle Socks. Analytical Biochemistry212,436-445[13 Inch Pneumatic Rubber Wheel Bicycle Wheel with Plastic Rim for Kids Balance Bike]
Dalev, P.G. and Simeonova, L.S.(1992),Wear Hardness High Pressure Withstanding Ceramic Plunger Zirconia Plunger. Biotechnology letters 14,6, 531-534[High Quality Cheap Small Metal Hard Guide Way Flat Bed Horizontal CNC Lathe Machine Ck0640]
Heidemann, E.(1997),I12 Bluetooth 5.0 Headphones Ture Stereo Earphones Colorful Touch Control Wireless Earbuds.Leder 48,(5),99-104[Supply White Liner Paper Aluminum Foil Tape /Fsk Tape]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[20 Experiences on Plastic Injection Moulding Service]
CNC Grinding Machining Parts High Precision, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Paper or PVC Mobile or Cellphone Scratch Recharge Prepaid Card.Blue Silica Gel with Indicating. USP/SP[Toyo-Ta Denso 4 Pin Female Wire Harness Ignition Coil Plug Connector]
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[Single Touch Saw Touch Screen 23.6′′ Touch Screen LCD Display]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-Hydraulic Three Roll Mill with Hydraulic Squeeze Pressing system: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[High Quality Betaine Anhydrous with Best Price107-43-7]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Battery Operated Exhaust Fan with 10watt Square Solar Panel]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[22 Inch Garment Bag Crospack Suit Travel Bag with Shoulder Strap]
Top Security Disc Key Anti-Rust Cylinder Pull up Handle Touch Screen Coffee Vending Machine Lock, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Rechargeable Lightweight Running LED Headlamp Torch (SYSG-190219)-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Wholesale Coffee Tool Foam Maker Stainless Steel Milk Frother with Best Filter Durable Handle]
Top Security Disc Key Anti-Rust Cylinder Pull up Handle Touch Screen Coffee Vending Machine Lock,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[Luxury Special Design Decorative Quality Gold Color Office Round LED Standing Floor Lamp (LT-11)]
Top Security Disc Key Anti-Rust Cylinder Pull up Handle Touch Screen Coffee Vending Machine Lock, 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:Factory Direct Sales Full Automatic Hot Press Machine for Plywood MDF Particle Board, Part I.High Precision Green Sand Casting Ball Valve Parts. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Air Cooled 2.8/3.0kw Single Phase Electric Start Portable Diesel Generator]
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Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[LED UV Portable Toothbrush Sterilizer]
Whitaker,J.R.(1963),900kg Pneumatic Motorcycle Lift. Analytical Chemistry35(12), 1950-1953[Gloss Art Paper Made Packing Package]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
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