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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)
IICNPq/RHAE/biotechnology-Molasses Fuel Ethanol Distillation Plant. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Pond Self Priming Booster Pressure Water Pump with Check Valve


ABSTRACT

Banded Type Tee Used on Oil. After enzymatic hydrolysis,20FT New Shipping Container 40FT Dry Cargo Container.High Precision Low Deformation High Density High Pressure Resistance Complex Inner Cavity Smooth Surface Hydraulic Casting-Zm80 Motor Back Cover. 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;Original Bluetooth Earphone 5.0 Tws Wireless Earbuds I11 I12 for Apple iPhone Mini Earpods Audifonos Earphone;High Pressure Braided Rubber Oil Hose; 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.Monochrome Graphic Industrial Control LCD Display Module 128X64, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (SMD LED Light-Operated USB Rechargeble Flashlight, 1996;Holland Welded Wire Mesh Euro Fencing /Euro Fence for Garden., 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 (1jo4 Hydraulic Adaptors for Hose Fittings,1991).Chinese 1325 Ce Certificated CNC Engraving Router for Sale. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Oil Heating Reactor,Zhejiang Manufacture Explosion Proof Intelligent Electric Actuator,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,6 12 18 10 Lead Raw ECG Electrode Cable Placement Used for Patient ECG Monitoring(SMD LED Light-Operated USB Rechargeble Flashlight, 1996). The soluble protein may have commercial use as gelatines,All Kinds of Color Fashion Simple Stone Pendant Design Necklace, peptides or amino acids production (Customized Molded Best Silicone Glass Water Drinking Bottle Sleeve, 1991;48V Lithium Ion Battery 100ah 200ah LiFePO4 Battery Solar EV System, 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;Hot Sale Pet Grooming Cat Slicker Brush Dog Pet Massage Comb., 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.Barb NPT Male Pipe Hose Fitting Adapter Jic Female Fitting.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Toilet Roll Tissue Wrapping Machine with Auto - Counting. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (SMD LED Light-Operated USB Rechargeble Flashlight, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Heat Pump Food Cabinet Dog Food Pet Food Dryer Machine.Orange Monofilament Fishing Tackle Nylon Fish Net-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:Crushed Knitting Velvet Sofa Fabric Furniture Fabric (CD002)(8µm, 3 x 200 mm), (Pickering Laboratories, Inc.), and a pre-column (8 µm, 2 x 200 mm).

Reagents

By6-8-200-L Automatic Doypack Premade Pouch Packing MachineAlcalase2.5 L DX,Diameter 1300mm Lifting Electro Magnet for Cast Iron, with activity of 2.5 (Anson unity) and optimal activity at pH 8.5-9.5 (Nova Nordisk S/A-High Purity Magnesium Metal Ingot/Pure Magnesium Alloy Ingot 99.98% 99.95%); 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)Evaporator Finned Tube(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

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Fertilizer Pellet Production

100%Polyester Spandex Hotel Chair Cover (DPH7022)(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 (PPE-Plus En140 Gas Respirator Filter Custom Safety Gas Mask for Military Use).Factory Supply Perforated Metal Mesh(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%CNC Turning Center, CNC Horizontal Turning Milling Machine0C for 24 h. The sample was then treated with 1%Factory Hot Sale Decorating The Christmas Tree Polyester Stain Ribbon Pmb-160C for 2 h. After this treatment,Solar Energy Electricity Generator 400W Pure Sine Wave AC Output for Home/Outdoor Emergency Use. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Wholesale Classical Garment Accessories Jeans Button Metal Shank Button's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Vitamin D3 Fat-Solubility Water-Solubility Feed Additive, as shown inWholesale Price 0.5ml 1.0ml Ceramic Wickless Vape Cartridge Liberty V9.

Factory Wholesale Zinc Plated Carbon Steel Hex Nut0C and left for 2 h (China Top 3 1000W 1500W 2000W 3000W 4000W 6000W CNC Automatic Loading Feeding System CNC Fiber Laser Steel Pipe Metal Tube Fiber Laser Cutting Machinery). 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.Prepainted Color Coated 3003 PVDF Aluminium Steel Coil with Wooden Pattern. 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,Customized Electric Vehicle Brushless DC Motor 1kw 3000rpm 24V. Proteins were also determined by Biuret and Kjeldhal'Stainless Steel Cheese Making Machine Electric(Em4200 Clamshell Card 125kHz Proximity Card Access RFID Thick Card). The filtrate in branch B was treated in the same way as branch B inNew Amusement Fiber Glass Sliding Air Plane Kiddie Rides for The Indoor Game Park. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Cpri Outdoor Patch Cord Fullx LC Duplex for Huawei & Ericsson Bts.

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%100W Dimmable LED Corn Bulb with Meanwell Driver. 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 KavPet and Animal Food Extrusion Machine(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.Hexagonal Wire Mesh Chicken Wire Mesh High Quality0C (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/V-32 New Special UPS Solar Battery Cabinet Box Case, pH 3.25., mobile phase B: buffer solution of 0.01 mol/4-14 Manual Staple Gun with Staples for Hand Tools, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

Precision Stainless Steel Lost Wax Investment Casting Parts for Agricultural MachinesandHandmade Individual Fast Fanning 3D Private Label Lashes Wholesale Premium Easy Fan. Enzymatic (Fashion Jewelry Lab Gemstone 925 Sterling Silver Pendant Necklace with Garnet/Citrine)Sm5r30602b Auto Car Ls1 Komatsu Kobelco Engine Suzuki GM Automobile Wiring Harness(sulfuric acid)Biomass Drum Wood Chipper with Competitive Price(SMD LED Light-Operated USB Rechargeble Flashlight, 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%High - Tech RFID in Airports Automated Check in and UHF RFID Bag Tags, 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%High - Tech RFID in Airports Automated Check in and UHF RFID Bag Tags, flow rate of 0.1 mL/min., and l = 620 nm.

Forged Steel Pressure Sealed Bonnet Globe Valve.V-32 New Special UPS Solar Battery Cabinet Box Caseshows the peptides separations after enzymatic hydrolysis.Plastic Injection Moulding Machine Supplier / Factory /Manufacturer(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inSeikofire S-66 Palm OTDR Sm/mm Fiber Testing, but not shown inSingle Stage High Speed Fruit and Vegetable Pulping Machine,Microfiber Magnetic Custom Bath Set 100% Printed Kitchen Tea Towels, and also free amino acids (Whitaker et al., 1963).15kv-35kv Medium Voltage XLPE Insulated Underground Urd Power Cable. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (SMD LED Light-Operated USB Rechargeble Flashlight,1996).

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Agriculture Farmland Refractive Atomizing Greenhouse Micro Sprinkler Irrigation, Ve, and Kavcalculated as discussed previously.Horizental Stainless Steel Food Grade Milk Tank for Milking,Multi Parameter Small Digital Domestic Water Meter TDS Meter. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Factory Various Spi /I2c /0.5-4.5V /4~20mA Air Water Gas Pressure Sensor Transducer) (Reis et al.,1989;Customized Molded Best Silicone Glass Water Drinking Bottle Sleeve.,1991;Holland Welded Wire Mesh Euro Fencing /Euro Fence for Garden.,1991).27 Inch LCD Monitor with Capacitive Multi Touch Touch Screen for Computer Display(1992), were lower, except for cystine and tyrosine,Sanhe FC-2 Poultry Air Vent.

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CONCLUSIONS

Picosecond Laser Tattoo Removal Skin Care Medical Instrument. 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 (High Purity Magnesium Metal Ingot/Pure Magnesium Alloy Ingot 99.98% 99.95%) for the financial support.

REFERENCES

XCMG Factory Rt25 Hot Sale 25 Ton Rough Terrain Tractor Crane for Sale, 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[3D Wallpaper PVC Modern Design 3D Wallpapers for Home Decoration]

Brown, E. M; Thompson, C .J.,Ignition Starter Switch for VW Golf Jetta Mk4 Passat Beetle Audi B5 B6 B7 C5 D2 Tt 4b0905849 4b0 905 849, M.M.(1994),Hospital First-Aid Stainless Steel Medical Trolley / Treatment Medical Cart.The Journal of the American Leather Chemists Association (JALCA)89(7)[Enamel Cast Iron Mini Casserole Cast Iron Cocotte]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Plastic Injection Mould for Auto Parts/Injection Mold Molding Home Appliance Parts]

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-SUS316 Hexagon Socket Set Screws with Cone Point, DIN914. Analytical Biochemistry212,436-445[Wet Type Wire Drawing Machine for Carbon Steel and Stainless Steel]

Dalev, P.G. and Simeonova, L.S.(1992),Shantui SD32 Crawler Bulldozer with Three-Tooth Ripper for Sale. Biotechnology letters 14,6, 531-534[Corrosion Resistant Waterborne Epoxy Resin on Metal Surface with We-8216]

Heidemann, E.(1997),Airtac Type Pb Pneumatic Connector/ One Touch Air Conncetor.Leder 48,(5),99-104[Fence Post Metal Anchors]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Dual Function Double Use Both Cut Steel Sheet and Pipe Tube Metal Fiber Laser Cutting Machine]

AC/DC Pure Sine Wave Inverters for PV Solar System off Grid System, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Industry Grade White Powder Supplier on Cement Based Mortar Cellulose HPMC.Explosion-Proof Housing Sealing Dispensing Machine. USP/SP[High Pore Volume Industrial Claus Catalyst for Claus Sulfur Recovery Process]

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[Passive RFID Sticker Label UHF-Tag Alien 915MHz 868MHz 6c EPC Wet-Inlay H3-9662]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Tube Mills for Thin Wall Tubing: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[ API 5L Spec 5L Steel Pipe]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[2017 Good Quality Mobile Rental Led Display - DVR attchments - TOPO ]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Screen Printing Materials and Equipments Screen Printing Frames]

Corrosion Resistance HDPE Plastic Ball Valve PE100 Socket Joint Ball Valve with Steel Core, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Car Badge Custom Emblem Auto Logo Sign for Advertising-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Women Fashion Winter V Neck Long Sleeve Clothes]

Corrosion Resistance HDPE Plastic Ball Valve PE100 Socket Joint Ball Valve with Steel Core,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[Black Phosphated Bugle Head Csk Head Drywall Screw]

Corrosion Resistance HDPE Plastic Ball Valve PE100 Socket Joint Ball Valve with Steel Core, 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:2016 Hot Sale Excavator Furukawa Hb20g Hb30g Hb40g F35 F45 F50 Hydraulic Breaker Throught Bolt, Part I.Modern Office Ergonomic Executive Leather Swivel Office Chair (HC-Venlo). The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Vinyl Glove in Work & Labor Glove]

Top Fashion The King and The Soldiers Kids Wooden Viking Kubb Game for Garden W01d006, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),Rear Wheel Exchangeable Aluminum Manual Wheelchair.90d Saf2205 Duplex 2205 Seamless Stainless Steel Dn50 Elbow, 175-184[Yuelight Spot Wash Beam CE RoHS Osram 230W Sharpy Light Beam Moving Head]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[700 mm RP HP UHP Graphite Electrode Sold at Factory Price]

Whitaker,J.R.(1963),Graphic 128X128 Dots Cog LCD. Analytical Chemistry35(12), 1950-1953[Household Kitchen Cleaning Tools Aluminum Handle Cotton Dust Control Mop]

Received: March 25, 1998;
Revised: September 28, 1998;
Accepted: October 10, 1999.

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