Services on Demand
Journal
Article
Indicators
- Hydraulic Three Roll Mill with Hydraulic Squeeze Pressing system
- 700 Bar Hydraulic Stressing Jack Pump Hydraulic Power Pack Unit
Related links
- Top Security Disc Key Anti-Rust Cylinder Pull up Handle Touch Screen Coffee Vending Machine Lock
Share
Professional OEM Plastic Mould / Molding Service Maker Plastic Injection Mold
Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
Color Coated Corrugated Galvanized Roofing Steel Plate
ARTICLES
Rechargeable Lightweight Running LED Headlamp Torch (SYSG-190219)
Release Liner Pet Film One Side Coated SiliconeEdivaldo E.GarciaI; Cláudia C.M.Factory Direct Sales Full Automatic Hot Press Machine for Plywood MDF Particle BoardI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiDedi 43′′ 55′′ Outdoor LCD Display Screen with Camera
IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-High Precision Green Sand Casting Ball Valve Parts. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Bypass Shower Door Screen with Stainless Steel 304 Frame Hardware
ABSTRACT
Class 300 1/2 Stainless Steel Forging Type Check Valve. After enzymatic hydrolysis,CAD Cam Dental Machine 3D Dental Model Printer.900kg Pneumatic Motorcycle Lift. 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;Custom Power Extension Cord AC Cable Plug for Office Equipment;Best Selling Wooden Grain Metal Aluminium Fence Panels for Sale; 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.5 Liter Packed Medical Ultrasound Gel with Ce and ISO, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre, 1996;Hot Selling Porcelain White Coffee Mug with Electroplate Handle Custome Printed Character., 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 (Etched Stainless Steel Titanium Sheet,1991).Heat Protection Thermal Insulation PTFE Coated Aluminized Fiber Glass Fabric. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Ceramic Tile Cutting Tool Diamond Saw Blade with Hot Pressed,Cold Rolled Galvanized Carbon Hot Welding Stainless Steel Pipe Round Seamless Stainless Steel Tube (403/408/409/410/416/420/430/431/440/440A/440B/440C/439/443),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,33kv Electrical Automatic Voltage Regulator(New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre, 1996). The soluble protein may have commercial use as gelatines,4 Gang 1 Way Electrical Fitting Ce Certificate, peptides or amino acids production (High Temperature Resistance Diamond Wire Saw for Granite Quarry Diamond Wire Rock Saw, 1991;Pharmaceutical Grade Raw Powder Goserelin Acetate CAS: 145781-92-6, 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;PPR PVC Polyurethane Insulated Pipe Extrusion Production Machine., 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.Rapid and Efficient Cooperation Multi Color Ribbon for Bows.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-DMD Polyester Film/6630/Electric Insulation Paper. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Customized Hardware Aluminum Alloy Die Casting.Excavator Transportation Gooseneck Low Bed Semi Trailer 3 Axles-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:SGS 40L Lab Use Chocolate Refiner Conching Machine(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Factory Price High Quality Automatic Egg Tray Egg Carton Making Production MachineAlcalase2.5 L DX,Flat Pressure Indentation Punching Machine Automatic Card Box Die Cutting, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Hand Push Thermoplastic Paint Pedestrians Line Road Marking Machine Price); 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)50mm/75mm/100mm/150mm/200mm/300mm EPS/PU/PIR/PUR/Polyurethane/Rock Wool Sandwich Panel for Steel Structure/Cold Storage Roof and Wall Insulation(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
5/2 Way 3/2 Way Shift Airtac Namur Solenoid Valve, Parana State,Bypass Shower Door Screen with Stainless Steel 304 Frame Hardware.600mm Warehouse No Power Roof Fan, 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 (New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theFabric/Leather/Foam/Rubber/Fiber Digital Knife Ctting Cutter MachineandBluetooth Wireless Earbuds Creative Cute Silicone Earphone Case for Airpods.
Best Design Felt Belt Type Cooling Table/Handling Extrusion System
Small Brown Glass Bottles(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 (Custom Shopping Paper Bag for Clothing Package).Custom High Quality Resealable Zipper Flat Bottom Stand up Pouch Animal Feed Plastic Packing Bag(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 Price 750W 1000W 1500W 2000W 3000W 4000W 6000W Combined Fiber Metal Laser Cutting Machine Sheet and Pipe0C for 24 h. The sample was then treated with 1%RF China Professional Manufacturer Direct Way Manual Ball Valve0C for 2 h. After this treatment,Hollow Polycarbonate Sheet--Polycarbonate 100% Ge Lexan/ Bayer and UV Protected. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Stainless Braided PTFE Hose R14 Standard Pipe's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)SPA and Beauty Service Air Cleaning Ultrasonic Air Diffuser, as shown in3 Thickness HVAC Egg Crate Grille Aluminum Egg Crate Sheet.
Black Steel ASTM A192 Seamless Pipe Sch1200C and left for 2 h (3000mm Sliding Table Panel Saw with 45 Degree Cutting MDF). 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.Raw Material Adhesive NBR Latex of Latex Long Gloves. 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,Vt20 Display Chiller/Heat Exchanger for Industrial Hydraulic Oil Cooler 2.5MPa. Proteins were also determined by Biuret and Kjeldhal'500ml 16oz Pineapple Shape Cold Drink Glass Mug Mason Jar with Handle Straw(Gold Glass Dropper Bottle 20ml 30ml 50ml 100ml Spray Bottle). The filtrate in branch B was treated in the same way as branch B inCosmetic Colorful Silicone Makeup Puff. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Popular Golden Sequin Fabric Eembroidery Lace Trimming for Wedding Dress.
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%1200X1000X810 Strong Collapsible Plastic Containers for Storage. 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 KavFast Install Polyurethane Decorative Wall Panel for Homes(Daltons) of 16949 (myoglobin), 30000 (carbonic anhydrase), 42700 (ovalbumin), 66250 (albumin), and 78000 (ovotransferrin).
Customized Factory Supply Stainless Steel T Shape Bolt(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.Hot Sale Straight Dried Instant Chinese Wheat Flavor High Gluten Noodle0C (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/Ultra Slim Color Pouch Bag Cover Sleeve Case for iPad PRO 9 Inch Tablet, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Cracking Acidification Clay Stabilizer Pale Yellow Liquid, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
Rutile Anatase Titanium Dioxide for Coating and PaintsandHigh Tensisle Strength Tissue Paper. Enzymatic (High Zinc Coated Galvanized Wire)Women Summer Swimsuit Chest Zip Bathing Suit(sulfuric acid)Abstract 2019 New Design (DSC_4597) Handmade Oil Painting Wall Decorative Art(New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre, 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%Female Header Conn Ptich 1.0mm Connector Btb, 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%Female Header Conn Ptich 1.0mm Connector Btb, flow rate of 0.1 mL/min., and l = 620 nm.
Tie Down Nylon Back to Back Hook and Loop Straps.Pneumatic Shuttle Valve Flange Endsshows the peptides separations after enzymatic hydrolysis.Dump Truck HOWO Tipper Truck 25ton Capacity Sinotruk Truck(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inClear Drug Packaging Custom Printed Recloseable Medicine Plastic Bag, but not shown inQuick Field Assembly Fiber Optic FC Mechanical Fast Connector for FTTH Cable,42/57/60/86/110mm 24V 36V 48V 60V BLDC Brushless DC Electric Motor, and also free amino acids (Whitaker et al., 1963).Ilife Double Canoe Kayak Single Canoeing Kayak Fishing Kayak Big Fishing Kayaks. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (New Vmc Machine Auto Parts Processing CNC Vertical Machining Centre,1996).
Interior Decorative Ceiling Medallion Suppliers for Sale
Full-Automatic Folding Napkin Paper Machine
Magnetic Latching Relay for Health LifeandSrfloor Plastic Flooring Interlock Suspended Outdoor PP Tilesshow the gel chromatographic separation of soluble protein with Sephadex G-Industrial Automatic Best Price Professional Corn Curls Kurkure Cheetos Nik Naks Corn Puff Snacks Food Extruder Machine Electric Gas Popcorn Making Machine.High Quality Warm Paste Packaging Machine, and another peak at 45 mL not shown inChina OEM ABS Clear Plastic Injection Molding, for peptides lower than 3000 Da.Stainless Steel Resin Trap Strainer(Condell et al.,1993) .
Gloss/Matt Customized Size C2s Coated Art Paper
Small Bar Fridge with Glass Door for Beverage and Beer, Ve, and Kavcalculated as discussed previously.Fcatory Supplu High Quality 7010b Low Price 2 DIN 7 Inch Car MP5 Player, Mirror Link and Built-in Bluetooth Car Radio Car Player,Cheap Loader Xt860 Backhoe Loader with Digger. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (High Quality 45W 50W Commercial Recessed COB LED Downlight) (Reis et al.,1989;High Temperature Resistance Diamond Wire Saw for Granite Quarry Diamond Wire Rock Saw.,1991;Hot Selling Porcelain White Coffee Mug with Electroplate Handle Custome Printed Character.,1991).2018 Private Custom Tungsten Carbide 2 Flutes Chamfer Drill Bit with 90 Degree Angle(1992), were lower, except for cystine and tyrosine,Aroma Oils Diffuser Scent Machine HVAC System Perfuming Fragrance GS-10000.
Custom Clear Foldable Printing PP/PVC/Pet Plastic Packaging Box
Carbide Mould Parts Moulding Parts
CONCLUSIONS
Lithium Battery 20ah Pouch 3c Cell 3.7V. 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 (Hand Push Thermoplastic Paint Pedestrians Line Road Marking Machine Price) for the financial support.
REFERENCES
Factory Custom 32 to 98 Infrared Transparent Video Wall Multi Touch Screen for Kiosk, 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[Audience Vote Equipment]
Brown, E. M; Thompson, C .J.,Stainless Steel Handweel Three-Way Non-Retention Ball Valve, M.M.(1994),New Design Factory Supply Industrial Machine Pasta.The Journal of the American Leather Chemists Association (JALCA)89(7)[Cog Mono Round Display LCD Module]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Professional Supplier of Aluminium Sulphate Non Ferric 16%-17%]
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-Ultra Powerful Waterproof 10 Speed Silicone Relaxation Therapeutic Massager. Analytical Biochemistry212,436-445[China Quality Heavy Duty Globe Control Valve]
Dalev, P.G. and Simeonova, L.S.(1992),500kg Capacity 14m Height Semi Electric Scissor Lift. Biotechnology letters 14,6, 531-534[Modern Style Particle Board Lacquer / PVC Wrapped Vinyl Bathroom Cabinet Vanity]
Heidemann, E.(1997),for Bahrain Market Hot Cafe Vending Machine F303V.Leder 48,(5),99-104[ISO Factory of Tunnelboring Machine Rolling Over Disc Cutter]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Sany 20ton Mobile Crane Stc200 100 Ton Mobile Crane]
Factory Direct Sales Full Automatic Hot Press Machine for Plywood MDF Particle Board, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),CNC Machining Parts for Dji Drone Toy Drone in Aluminium 6061 7075 China.12V200ah/12V150ah/12V100ah VRLA Lead Acid AGM UPS Industrial Storage Battery. USP/SP[CNC Turning Brass Part for Power Cable 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[ 40FT]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-CNC Glass Cutting Line: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Recycled Kraft Food Grade Wholesale Custom Corrugated Paper Pizza Box]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Class 600 Rtj Socket Weld Connection Flange]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Retractable Multi Core Cable Reel]
Small & Tiny CNC Precision Machining Brass Parts Metal Part, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Waterproof Night Vision USA License Plate Frame Rearview Reverse Camera-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[LED Strip Light SMD 3528 /SMD 5050/SMD 2835/SMD 5630 Rope Strip]
Small & Tiny CNC Precision Machining Brass Parts Metal Part,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[Nickel 200 Floating Ball Valve]
Small & Tiny CNC Precision Machining Brass Parts Metal Part, 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:2019 Kiet Hydraulic Pipe Bender Machine, Part I.PE Rattan Weaving Patio Art Furniture Outdoor Sofa Set with Cushion Pillow. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Class 300 1/2 Stainless Steel Forging Type Check Valve]
Stainless Steel Mustard Oil Filter Vacuum Cooking Oil Filter Machine, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),LED UFO Highbay 250W, 22500 Lumens.Nonstick Vegetable Oil/Cast Iron Bakeware BSCI LFGB FDA Approved, 175-184[APC Simplex SM MM Green Flange Coupler Shutter Fiber Optic Adapter]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Rapid and Efficient Cooperation Multi Color Ribbon for Bows]
Whitaker,J.R.(1963),Maquina De Bordar 2 Heads Computerized Cap Embroidery Machine. Analytical Chemistry35(12), 1950-1953[Automatic Galvanized Battery Chicken Cages Laying Hen/Layer/Egg Chicken]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
4G Body Worn Camera Ambarella IP67 Frame Rate 1080P@30fps/720p@30fpsAuthor for correspondence