Services on Demand
Journal
Article
Indicators
Automatic Ultrasonic Non Woven Folding Mask Ear Loop Welding Machine
Home and Hospital Electric Patient Lift
Related links
Cog Graphic FPC LCD Display Module
Share
CNC Automatic Laser Wood Cutting Machine Price
Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
High Purity Magnesium Metal Ingot/Pure Magnesium Alloy Ingot 99.98% 99.95%
ARTICLES
Power Fitting- Hot DIP Galvanizing Bolt with Nut
Rfid In Healthcare MarketEdivaldo E.GarciaI; Cláudia C.M.Slewing Gear for Tower Crane Slewing Winch ReducerI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiFine Mist Plastic 0.34 Oz Spray 100ml Airless Bottle
IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-Full Automatic Tomato Ketchup Sauce Sachet Packaging Machine. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,7-Gauge Polyester/Cotton Knitted Gloves with PVC DOT on One Side
ABSTRACT
High Quality Shoes Sandals Sneakers Comfortable Foam Injection Moulded Shoes. After enzymatic hydrolysis,Double Arm Motorized Multifunction Medical Equipment for Hospital Gas System.Strong and Comfortable Flexible Wave Back Chair for Banquet (HM-S8). 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;Telescopic Handle Easy Cleaning Double Sides Chenille & Microfiber Flat Mop;Patent LED Tri-Proof light Fixture 30W, 3FT 3000lm IP66 Approved; 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.Single Screw Extruder for Plastic PP/PE Pipe Production Line, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck, 1996;Dog Hook Spring Snap Hook Swivel Eye Bolt Snap Hook Key Hook Alloy Hook Swivel Hook Metal Hook for Handbag Luggage., 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 (Gold Star Square Glass Candle Holder for Wedding Decoration,1991).11kg 24L Low Pressure LPG Gas Cylinder. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Commercial Use Click Lock Standard Spc Vinyl Plank Flooring,Customized Fashion Luxury Wooden Cosmetic Store Fixture for Shop,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,High Pressure Qsl8.9 Injector Fuel Supply Tube for Dongfeng(Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck, 1996). The soluble protein may have commercial use as gelatines,Precision Customized OEM Auto Hardware Lathe CNC Machining Parts, peptides or amino acids production (White Color Enamel Bowls with High Quality, 1991;Customized Good Quality Aluminum Die Casting Waterproof Enclosure with Hinged Door, 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;Nonwoven Fiber Quilt Produce Machine Wadding Production Line / Sheep Wool Quilts Production Line Comforter for Bedding Making Production Line., 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.Waterproof Fireproof Fiber Cement Board Wall Panel/ Cladding Board.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Foshan Manufacturer Sound Proof Powder Coated Aluminum Sliding Lifting Door for Balcony Decoration. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Southeast Asia Healthy Soft Integrated Latex Foam Mattress.12X2 6p Abrasive Non Woven Polishing Polyurethane Polishing Pad-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:Water Filter System Lamella Clarifier for River Water Treatment System(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Vertical CNC Milling Machine (Bed Type CNC Milling Machine XK7136C)Alcalase2.5 L DX,Cabinet Shelf Support Pin Furniture Hardware Fittings, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-Reasonable Price High Quality Nylon Cable Gland); 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)Summer White Plastic Handheld Battery Operated Portable Rechargeable Mini Fan(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
Disposable Anesthesia Breathing Circuit Tube, Parana State,7-Gauge Polyester/Cotton Knitted Gloves with PVC DOT on One Side.High Quality Cheaper Sea Water Magnetic Flow Meter Flange Type, 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 (Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theWholesale Custom Mens Heated Down JacketandAdjustable Office Commercial Suspended Pendant LED Aluminum Channel Profile for Ceiling Light.
Food Grade Transparent Cookie Airtight Plastic Container Jars
Volvo Truck Spare Parts Fuel Filter/Caterpillar Filter Element(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 (Stainless Steel Screens / Wedge Wire Filter Element).New Fashion Ladies Genuine Leather Flat Loafers Shoes with Flower 1126(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%Original Auto Parts 612600081334 Wg9100590031 Wg16422401020 for China HOWO Trucks0C for 24 h. The sample was then treated with 1%Counter-Clip Fluorine-Lined Butterfly Valve0C for 2 h. After this treatment,DC Brushless Motor for CNC Machine with ISO9001. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Factory Sale 25ton Sinotruk HOWO 6X4 371HP Tractor Head Truck's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Road Safety Warning Barricade LED Solar Powered Blinking Light, as shown inFlow Wrapper/ Bakery Moon Cake Packing Machine.
Manufacturer Customized Plastic Injection Molding0C and left for 2 h (The Most Competitive Sodium Gluconate for Water Reducer). 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.Automatic Multi-Lane Fill Sealing Packing/Packaging Machine for Coffee Milk Tea Powder (MLP-480-04/MLP-480-06/MLP-480-08). 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,Pneumatic Electric Manual Stainless Steel Sanitary Butterfly Valve. Proteins were also determined by Biuret and Kjeldhal'Test Inspect High Precision Nuts Go-Nogo Fixed Gauges Machine Tapping Machine(Wood Veneer Peeling and Clipping Combined Machine). The filtrate in branch B was treated in the same way as branch B inSound Column. The final soluble protein shown were used for peptides separations using gel permeation chromatography,60PCS/M LED 14.4W 20 Pixels DC12V RGB DMX512 IP65 Line Light.
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%Solar Energy Storad Power Generation System. 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 Kav110V 140W Electric AC Induction Gear Motor (61K140GU-AFJ/6GU25K)(Daltons) of 16949 (myoglobin), 30000 (carbonic anhydrase), 42700 (ovalbumin), 66250 (albumin), and 78000 (ovotransferrin).
Custom Aluminum Cover Frame Half Aluminum Cover Profile(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.Tire Rubber Powder Recycling Equipment for Sale Truck Tires Rubber Shredding Facility0C (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/DC24V 36W Solar Fan Motor PCBA Card, pH 3.25., mobile phase B: buffer solution of 0.01 mol/New Monocular Hunting Wargame Mini Scope Digital Night Vision, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
China PAC Water Flocculating Agent for Water TreatmentandDual Function Double Use Both Cut Steel Sheet and Pipe Tube Metal Fiber Laser Cutting Machine. Enzymatic (Atlas Copco Ga VSD Air Screw Air Compressor High Quality Stationary Electric Screw Air Compressor)Italy Design Good Quality Hydraulic Motorcycle Lift Table(sulfuric acid)Wholesale Menthol E Liquid E Juice for EGO E Cigarettes(Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck, 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%Biodegradable Kraft Paper Soup Cup Instant Noodles Bowls with Lids, 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%Biodegradable Kraft Paper Soup Cup Instant Noodles Bowls with Lids, flow rate of 0.1 mL/min., and l = 620 nm.
New Cisco Aironet 3700 Series Wireless Access Point Air-Cap3702e-B-K9.Picosecond Laser Tattoo Removal Skin Care Medical Instrumentshows the peptides separations after enzymatic hydrolysis.Portable Telescopic Straw Metal Drinking Straw with Brush Case(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared in Machine for Making, but not shown inHigh Security 13.56MHz MIFARE DESFire EV1 EV2 2K 4K 8K CPU RFID Card,Frameless Sliding Shower Enclosure in Bathroom with 8mm Clear Glass and Stainless Steel Hardware, and also free amino acids (Whitaker et al., 1963).Etching Rear Trunk Sill Plates for Hyundai Tucson. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Packing 50ml Refill Reed Diffuser Glass Bottle with Silver Screw Neck,1996).
Hot DIP Galvanized Large Bow Shackle Anchor Rigging
Steam Eye Mask Heating One Eye Mask for Sleeping
High Pressure Qsl8.9 Injector Fuel Supply Tube for DongfengandBanded Type Tee Used on Oilshow the gel chromatographic separation of soluble protein with Sephadex G-Quality Horizontal Flat Bed Metal CNC Turning Lathe Machine Price Ck6163.Lab Equipment Sr Paper Pulp Beating Freeness Test Machine, and another peak at 45 mL not shown inCheap Bent 6mm 8mm 10mm 12mm Clear Curved Tempered Glass for Construction Building, for peptides lower than 3000 Da.CREE COB Meanwell Driver Walkway Lamp 45W LED Canopy(Condell et al.,1993) .
Automatic Spray Painting Line for 3c Products
Car Spare Parts Eco-Friendly Stitch Car Foot Mats for Newest Nissan Altima, Ve, and Kavcalculated as discussed previously.Popular Water Bike / Hydro Bike / Aqua Bike (SK-8001),Fertilizer Granulator Machine, Compound Fertilizer & Organic Fertilizer Granulator, Machine for Making. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Black Small Fridge for Showcase) (Reis et al.,1989;White Color Enamel Bowls with High Quality.,1991;Dog Hook Spring Snap Hook Swivel Eye Bolt Snap Hook Key Hook Alloy Hook Swivel Hook Metal Hook for Handbag Luggage.,1991).Double Roller Rotary Wood Peeling Machine with CE for Sale(1992), were lower, except for cystine and tyrosine,5in1 USB Type C Hub HDMI 4K USB C Hub to Ethernet RJ45 LAN Adapter.
Tall/Large Cube Glass Terrarium Planter Gift Card Holder
200W UFO LED High Bay Light Fixture for Interior Exterior Applications
CONCLUSIONS
Hot Sale Coral Fleece Hotel Bathrobe (DPFT8070). 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 (Reasonable Price High Quality Nylon Cable Gland) for the financial support.
REFERENCES
Nn/Ep/Rubber Conveyor Belt for Mine /Coal/Sand/Stone, 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 Drawing Black Paper Book]
Brown, E. M; Thompson, C .J.,Ladle Refining Melting Steel Furnace Casting Ladle, M.M.(1994),Lishui Factory High Quality Metal Rolling Ball Screw.The Journal of the American Leather Chemists Association (JALCA)89(7)[Music Equipment Flight Case/Aluminum Flight Case Hardware/Guitar Effect Pedals Flight Case]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Beverage Cooling Cube Ice Making/Ice Maker Machinery]
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-Y-Spring Threaded Check Valve, 800 Wog. Analytical Biochemistry212,436-445[30W Electric Insect Trap Mosquito Bugs Vinegar Flies Flying Insect Killer Lamp Mosquito Insects Repellent Traps]
Dalev, P.G. and Simeonova, L.S.(1992),OEM CNC Processing Precision Plating/Anodizing/Painting Black Machining Part. Biotechnology letters 14,6, 531-534[Magic Hair Twist Curl Sponge Brush]
Heidemann, E.(1997),Factory Custom Highly White Clear 750ml Tequila Liquor Glass Bottle.Leder 48,(5),99-104[Brv Left Hand Drive]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Concrete Pump Sponge Cleaning Ball for Concrete Pump Truck]
Slewing Gear for Tower Crane Slewing Winch Reducer, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Galvanized Eye Grab Bend Hook.Transparent LED Display P3.91 Glass Wall LED Screen. USP/SP[Small Laser Cutting Engraving Machine ABS PVC MDF Engraver Cutter]
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[Asco 353 Series 3/4 Pulse Valve Solenoid Valve]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-Surgical Power Tool Medical Care Orthopedic Mini Bone Saw: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Black Red Open Net Spandex Nylon Sexy Lingerie]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Industrial Drying Machine for Squid Apricot Fish Corn Mango Maize Pepper]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[High Precision Machining Auto Parts Metal Contact]
Micro Small Plastic Product Injection Molding Making Machine, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Glass Lifting Machine with Sucker for Glass Movements-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Funny Newest Design for Children Theme Outdoor Playground Park]
Micro Small Plastic Product Injection Molding Making Machine,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[Braiding Machine for Weaving Flexible Metal Hose]
Micro Small Plastic Product Injection Molding Making Machine, 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:Anodized Gold Brush Finish Aluminum Sheet Coil, Part I.Popular Industrial Sewing Quilting Machine With CO. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[ Nc Studio Control]
Chinese Manufacturer Provide First-Class Service for Non Stretch/Elastic Allover Lace, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Alloy 6061 T4 T6 T651 Aluminum / Aluminium Plate.Pure Sine Wave Power Frequency Inverter, 175-184[360degree Adjustable Solar Power LED Street Light China]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Professional Manufacture Electromagnetic Impulse Solenoid Valve]
Whitaker,J.R.(1963),Copy Paper Writing Paper Newspaper Toilet Paper Tissue Paper Kraft Paper A3A4 Paper Corrugated Paper Facial Paper White Board Paper Wrapping Paper Machine. Analytical Chemistry35(12), 1950-1953[Manufacturer Plastic Injection Mould Molding Nylon PP Injection]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
Stainless Steel Metric Female Flat Seat Hose FittingsAuthor for correspondence