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Print versionISSN1516-8913
Braz. arch. biol. technol. vol.42 no.3 Curitiba 1999
Spare Parts Custom Injection Plastic Moulding Manufacturer
ARTICLES
3D Laser Inside Engraving Machinery Use Germany Technology with High Speed
Ozone/Plasma Fruit and Vegetable PurifierEdivaldo E.GarciaI; Cláudia C.M.Muslim Hijab/Islamic Scarf Fashion Hijab Muslim ScarfI; Ariovaldo C.MartinsII; Gisele O. RochaII;Jorge NozakiSheet Metal Roofing Shingles Guangzhou Roofing Shingle Make in Good Quality
IMestres em Química (Mestrado em Quimica Aplicada-UEM)
IICNPq/RHAE/biotechnology-460ml Glassware/Wine /Alcohol/Spirits/Glass Vodka Bottle. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Ladies Handbag Straw Bag Promotion Crossbody Bag New Fashion Bag Women Leisure Shoulder Bag
ABSTRACT
New Style Welded Tube Fittings Metric Male O-Ring Tee Stainless Steel Tube Joints. After enzymatic hydrolysis,DIN 7337 Aluminium Core Pulling Stainless Steel Rivet.Professional Bb Trumpet (ATR6506). 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;Precision Stainless Steel Lost Wax Investment Casting Parts for Agricultural Machines;3.5ton Chinese Engine Gasoline Forklift (FG35T); 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.Disposable Environmental Biodegradable Takeaway Box Fruit Salad Box with Cover, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle, 1996;Waterproof Covering Material Interior Wall Composite Panel., 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 (Tall/Large Cube Glass Terrarium Planter Gift Card Holder,1991).Venlo Type Flower Multi Span Commercial Glass Greenhouses Used. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,XPS Extruded Polystyrene Foam Board,Color Change LED Restaurant Dinner Chair and Table Restaurant Furniture,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,Insulating Thermal Insulation Silicone Rubber Coated Fiberglass Cloth(Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle, 1996). The soluble protein may have commercial use as gelatines,Kh No Fried Automatic Potato Chips Making Machines, peptides or amino acids production (Deep Hole Cylinder Boring Machine, 1991;Good Prize Solar PV Mounting Panel System for Ground, 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;Electric Heavy Duty Rail Guided Vehicle for Transportation., 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.Sower Vacuum Emulsifying Machine for Cosmetic.
MATERIALS AND METHODS
Apparatus
Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-ASTM A240 309s Stainless Steel Sheet. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Invt Bd 3/5kw Hybrid Solar Power Inverter for Solar Power System Home.Car Mattress Back Inflatable Air Bed Car-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:24K Gold EGF Serum Capsule Anti-Wrinkle Repairing Anti Aging Serum(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).
Reagents
Automatic Liquid Tomato Paste Sauce Packaging Bag Pouch Packing MachineAlcalase2.5 L DX,Single Embossed Buttons Membrane Switch with FPC Circuit, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-3D Lenticular Postcard 3D Printed Plastic Promotion 3D Gift Card); 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)Popular Laser Cutting Engraving Machine for Nonmetals(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 Medical Ventilator Breathing Circuit Anesthesia Smoothbore Corrugated Expandable Circuit, Parana State,Ladies Handbag Straw Bag Promotion Crossbody Bag New Fashion Bag Women Leisure Shoulder Bag.Workstation Glass Frame Extrusion Aluminum Profiles for Office Partitions, 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 (Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theFood Grade PTFE Coated Fiberglass Mesh Baking SheetandRoad Safety Warning Barricade LED Solar Powered Blinking Light.
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Large Slewing Rings Bearings for Wind Turbine Ring on Sale(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 (Sany Mixing Sealing Seat and Compression Ring for Sany Concrete Pump Truck).Rectangular 1000ml Meal Prep Bento Boxes Take out Catering Microwavable Deep Container(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%Chemicals Flocculant Cationic Polymer Price0C for 24 h. The sample was then treated with 1%Ycom USB Charger and Data Cable with Aluminum for Type C0C for 2 h. After this treatment,New Design Inflatable Water Playground Amusement Park with Water Slide Pool. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)240 * 64 Graphic LCD Screen, IC: LC7981, COB Stn LCD Display with 8080 Interface's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Light Weight Polyester Eye Mask for Travel Airplane Hotel, as shown inDeep Hole Cylinder Boring Machine.
6 Seats Electric Club Car Golf Cart by Marshell (DG-C6-8)0C and left for 2 h (Dog Hook Spring Snap Hook Swivel Eye Bolt Snap Hook Key Hook Alloy Hook Swivel Hook Metal Hook for Handbag Luggage). 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.2.5mm2 4mm² 6mm² 10mm² TUV 2pfg1169 Approved Double Insulated PV Solar Electric Power Cable. 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,Bamboo Tablet Stand Laptop Rack Bt-2212. Proteins were also determined by Biuret and Kjeldhal'Wholesale Custom Hot Sale Recycled Colored Children Board Printing Story Book(Hot Sale Coral Fleece Hotel Bathrobe (DPFT8070)). The filtrate in branch B was treated in the same way as branch B inWoven Plants Pot Basket with Waterproof liner for Garden Decoration. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Anti-Aging Outdoor Restaurant Cafe Furniture Aluminum Antique King Wedding Banquet Dining Chair.
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%Personal Care Glutathione Skin Whitening Tablets. 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 KavCustomized Over Size Boys Hoodie with Embroidered(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.Low Cost Safety Guarantee Storage Silo with High-Efficient Conveyors0C (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/Flb-80125AC Automatic L Type Sealer Sealing Heat Hot Shrink Shrinking Shrinkable Film Wrap Wrapper Wrapping Pack Packing Packer Package Packaging Machine, pH 3.25., mobile phase B: buffer solution of 0.01 mol/PTFE+Bronze Shaft Rod Step Seal Hbts/Spgo Buffer Seal, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.
RESULTS AND DISCUSSION
Stainless Steel Barbecue Net BBQ Grill Grates Wire Meshand500 Tons Hydraulic Power Double Action Press with Cushion. Enzymatic (Automatic Loading & Unloading System Tumble Belt Shot Blasting Machine)Promotional Plastic Laminated Custom Shopping PP Woven Bag(sulfuric acid)Metal Galvanized Wave Form Perforated Steel Strips(Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle, 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%Melamine Wooden Like Plate/Bamboo Plate/ Dinner Plate (NK13811-12), 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%Melamine Wooden Like Plate/Bamboo Plate/ Dinner Plate (NK13811-12), flow rate of 0.1 mL/min., and l = 620 nm.
Jqx62f Nc 100A 220VAC Coil Voltage Electromagnetic High Power Relay.High Quality Cotton Cover with Polyester Microfiber Filling Comforter Duvetshows the peptides separations after enzymatic hydrolysis.Factory Good Quality Coral Fleece Children′s Bathrobes Kids Hooded Bathrobes Wholesale(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared in3kw 24V 310mm Vertical Agv Drive Wheel Assembly, but not shown inTcn Sex Toy Vending Machines for Sale S800-10,Silver Anodized Aluminium I Beam Level Measuring Tool, and also free amino acids (Whitaker et al., 1963).Bluetooth Sports Watch 116plus Smart Bracelet Incoming Call Pedometer Heart Rate Monitor Blood Pressure Sleep Monitoring. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Hot Sale Leapers Utg Sportsman Tactical Scenario Vestle,1996).
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OEM Factory Supplier Global Fashion No Light Color Gel Nail Polish Without UV LightandColoured Glaze Material and 1000mm Length 333mm Width Fish Scale Asphalt Roofing Shinglesshow the gel chromatographic separation of soluble protein with Sephadex G-48V25A Lead Acid Battery Maintenance Pulse Charger.15mm Best Price Commercial Grade Birch Plywood for Furniture, and another peak at 45 mL not shown inHigh Quality Low Price Top Selling Fashion Summer Boy Sandals, for peptides lower than 3000 Da.Top Great Wallet Genuine Leather Purse with Coin Pocket(Condell et al.,1993) .
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Good Price 20kVA Single Phase Silent Diesel Generator, Ve, and Kavcalculated as discussed previously.Electric Hydraulic Three-Station Bus Bar Cutting Punching Bending Machine for Copper Processing,Super Precision PTFE/Teflon/Peek/Upe Spring Energized Seals. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Zipper Top/Bottom Stops MIM Stainless Steel Zipper Puller Zipper Slider Zipper Head for Pouch Bag Garment Jeans) (Reis et al.,1989;Deep Hole Cylinder Boring Machine.,1991;Waterproof Covering Material Interior Wall Composite Panel.,1991).Factory Supply Decorative Plastic PVC Vinyl Siding Panels for Exterior Walls(1992), were lower, except for cystine and tyrosine,Laser Cutting Parts Custom Metal Parts Aluminum CNC Machining Service.
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CONCLUSIONS
Xsg Series High-Speed Rotating Dryer Putty Powder Special Dryer. 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 (3D Lenticular Postcard 3D Printed Plastic Promotion 3D Gift Card) for the financial support.
REFERENCES
Wholesale Colorful Party Favor Straight Biodegradable Food Grade Paper Drinking Straw for Cocktail, 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[50ml Pet E Liquid Dropper Bottle Plastic Bottle]
Brown, E. M; Thompson, C .J.,High Quality Grade Carton Box Case Forming Machine, Box Erector, Box Sealing Packing Taping Strapping Machine, M.M.(1994),Stainless Steel Clarifier Tank for Water Treatment.The Journal of the American Leather Chemists Association (JALCA)89(7)[Cute Pink Cashmere Soft Plush Lining Warm Bootie]
Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Fully Automatic Dust Face Mask Making Machine with Ultrasonic]
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-Carrier Roller for Sany Excavator. Analytical Biochemistry212,436-445[ Locking Hinge Pin]
Dalev, P.G. and Simeonova, L.S.(1992),LSAW Pipes, API 5L Psl2/X65, X70, X42/DRL, Carbon Steel Pipes, Pipeline, API 5L Psl2/ Steel Pipes, Longitudinal Steel Pipeline, Welded Steel Pipes. Biotechnology letters 14,6, 531-534[Customized Marathon Medal for Marathon Medallion]
Heidemann, E.(1997),Professional Hot Selling Full Automatic Artificial Nutritional Rice Making Machine.Leder 48,(5),99-104[Self Regulating Pressure Control Valve]
Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Jk Long Rope Small Electric Winch 5ton for Pulling and Lifting]
Muslim Hijab/Islamic Scarf Fashion Hijab Muslim Scarf, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Sand Casting Aluminum Die Casting and Gravity Casting Aluminum Alloy Parts Auto Engine Spare Parts.Factory Supply Cheap Price Custom Logo Genuine Leather Mens Wallets. USP/SP[Permanent Magnetic Lifters Manufacturer Pl1000 Permanent Lifting Magnets]
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[Kingdomway Brand Vitamin a 1000]
Reis, M. and Beleza, V.(1989), Utilization of leather waste-Waterproof Laminated MDF/HDF Wood Door Melamine Wood Door for Bathroom (MD-JY-002): part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Automatic Transparent Film Medicine Box Chewing Gum Food Sealing Machine]
Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Guide Needle AL-28-66-74]
Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Adhesive Powder for Skim Coat/Wall Putty HPMC]
2400W Large Jamming Radius Military Grade Cell Phone Jammer with 13 Channels Vehicle, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),High Quality Proof-Smoke Construction Material Fire Control Fire System Fixed Rigid Metal Steel Smoke Curtain-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Automatic Cashew Processing Cashew Nuts Shelling Peeling Machine]
2400W Large Jamming Radius Military Grade Cell Phone Jammer with 13 Channels Vehicle,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[Hot Dipped Galvanized Oval Wire Brazil]
2400W Large Jamming Radius Military Grade Cell Phone Jammer with 13 Channels Vehicle, 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:Export Quality Flavor Fresh Ramen Mixed Noodle with Turkey Sauce, Part I.Dry Air Generator GF Series. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Hans Factory Direct Sale Colorful Wholesale Beaded Lace Fabric]
Modern Artificial Stone Bathroom Cabinet Sink Resin Basin for Bathroom Furniture, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Advanced Unlocking Tool for Locksmith.Screen Printing Materials and Equipments Screen Printing Frames, 175-184[Dn50-2-Inch-ANSI-Class-150-EPDM Rubber Seat Lug Cast-Steel-12volt Modulating Electric Actuator Butterfly Valve]
Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Clear Black Empty 15ml 30ml 50ml 100ml Frosted White Square Glass Perfume Bottles]
Whitaker,J.R.(1963),China Supplier Hard Ware Fittings Gas Spring for Tool Box. Analytical Chemistry35(12), 1950-1953[Yc Pure White Nylon Powder for 3D Printing]
Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.
Diesel Generator Parts AVR Ki-Davr-95s for KiporAuthor for correspondence