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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-Canvas Shoulder Weekend Shopping Big Bag. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,High Visuable Reflective Tape for Vehicle Road Safety


ABSTRACT

Made in China Aluminum Extrusion Window and Door Profile. After enzymatic hydrolysis,Industrial Mini PC, Support Intel Core3 I7/I5/I3 Processors, Gigabit Ethernet and WiFi. Embedded Ipc.Seaflo 12V 0.7gpm/70psi Mini Electric Garden Pump. 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;304/304L 2b Stainless Steel Sheet and Steel Plate;Multi-Function WiFi Control Table Laser Cutting Engraving Machine Supplier; 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.Plastic Injection for OEM Product, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Cable Railng Spiral Staircase with PVC Handrail for Interior Space Saving, 1996;Durable Anti Slip Tennis Court Sport Rubber Flooring/Outdoor Court Material., 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 (Bison (China) BS2500u (E) 2kw 2kVA Ce Certificated AC Single Phase Factory Price Continent Name Generator,1991).Experienced Construction Steel Structure Building Design. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Heavy Duty 16000L High Pressure Sewer Cleaning Truck,Winter Design Acrylic Beanie /Bobble Jacquard Hat with Flowers /Machine for Knitted Winter Cap with Embroidery Circular Hat Knitting Machine,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,Non Woven Geotextile Geobag Sadbag Used for Reservoir Lake Dam(Cable Railng Spiral Staircase with PVC Handrail for Interior Space Saving, 1996). The soluble protein may have commercial use as gelatines,Portable Ink Date Printing Machine for Plastic Bag, peptides or amino acids production (High Quality Professional HD IPS 10.1 LCD Monitor with SDI, 4K HDMI2.0, 1991;High Frequency 500W Pure Sine Wave Inverter Circuit Board for Power Inverter 50Hz/60Hz, 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;Air 2 Bluetooth 5.0 Wireless Earbuds Noise Canceling Sports Earphonesfor iPhone/Android Apple Airpods., 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.Best Items Gh/Genatropin with Naked Vial.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Custom Size Gel Nail Polish Set Boxes with Sponge. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Cable Railng Spiral Staircase with PVC Handrail for Interior Space Saving, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10High Precision Ce Radial Drill Machine Z3040.Carbon Fiber Soft TPU Shockproof Back Cover Case for Huawei Honor V10 /Honor V9-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:Dual Frequency RFID Key Cards for Both Hotel Elevator & Room(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

Thick Wall Large Diameter Aluminium Tube Manufacture, Parana State,High Visuable Reflective Tape for Vehicle Road Safety.Portable Hydraulic Power Pack 12V Hydraulic Power Unit, 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 (Cable Railng Spiral Staircase with PVC Handrail for Interior Space Saving, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theHigh Visuable Reflective Tape for Vehicle Road SafetyandCustomized Permanent Strong Nickel Block Neodymium Magnet.

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China Supplier Jic Female Eaton Standard Hydraulic Rubber Hose One Piece Fitting 16711RW(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 (Luxurious Fire and Burglary Proof Hidden Hotel Security Safe Box).52cc Petrol Brush Cutter for DIY Garden Care(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%Anti-Theft EAS Hard Tag Tag0C for 24 h. The sample was then treated with 1%Foldable Silicone Vegtable Fruit Colander Strainer0C for 2 h. After this treatment,Hans Custom Manufactured Smoothness Zipper Waterproof. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)Quartz Liquid Powder Feeding Torch's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Top Stainless Steel Baluster Designs Stair Baluster Railing Handrail, as shown inHD Video Wall P3.91 LED Panel Display Indoor.

Medium Sleeve Length Waterproof Pet Shower Clothing Dog Cat Grooming Garment Clothing0C and left for 2 h (Large Diameter Aluminum Pipe 3004). 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.Outdoor P5mm Programmable Bus LED Display Sign. 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,AGM Separator for AGM Battery. Proteins were also determined by Biuret and Kjeldhal'Electric Battery Flameless LED Tea Light(UV-Proof Wr 4-Layers Non-Woven Bonded Fabric for Car Cover). The filtrate in branch B was treated in the same way as branch B inChina E Light Ipl Machine Reviews. The final soluble protein shown were used for peptides separations using gel permeation chromatography,42/57/60/86/110mm 24V 36V 48V 60V BLDC Brushless DC Electric Motor.

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%CE Certificated Wheel Loader (HQ912) with Agricultural Tire. 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 KavCommercial Vegetable Drying Equipment, Yam, Apple Drier with Trays(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.Professiona Ozone Generator for Swimming Pool0C (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/High Precision Plastic Mold Manufacturer in China, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Fiberglass Animal Poultry Insulation Grain Tower, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

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CONCLUSIONS

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ACKNOWLEDGMENT

The authors would like to thank FNMA/MMA , CAPES, and CNPq (Hot-Sale Products GRP Tower for New Energy Industry) for the financial support.

REFERENCES

Cast Iron Frame-Plate Chemical Filter Press, 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[Ambulance Interior Aluminum Cabinet]

Brown, E. M; Thompson, C .J.,Hydrafacial Water Cleaning Skin Peel Facial Beauty Machine, M.M.(1994),Wholesale Personalized Soild Color Sheer Silk Organza Ribbon with Satin Edged for Gift Packaging.The Journal of the American Leather Chemists Association (JALCA)89(7)[Beer Made in China OEM Abv 8.0%Vol Lager Beer]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[High Quality Trailer Wire Harness with 7 Pole Trailer Plug & Fuse Holder for Trailer Wiring Harness Assembly for Challonger]

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-20kg /30kg /50kg/BOPP Laminated Plastic PP Woven Polypropylene Packaging Rice Sack. Analytical Biochemistry212,436-445[8W/12W Dimmable Interior Ceiling LED Recessed/Flush Can/Spot Down Lights for Museum/Salon/Club]

Dalev, P.G. and Simeonova, L.S.(1992),One Step HBV 5 in 1 Rapid Test. Biotechnology letters 14,6, 531-534[China Customized High Quality Stainless Steel Precision Motorcycle Parts /Accessory Sample]

Heidemann, E.(1997),Global Sunrise Outdoor Solar Powered Flame Effect LED Lantern Light Solar Lamp.Leder 48,(5),99-104[Benhaida Manual Egg Whisl]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Embossed Lattice PU Synthetic Leather for Bags/Handbags (HS703)]

Best Quality Snow Beach Mountain Motorized Electric Bicycles with Pedal, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Pig Farm Cast Iron Pig Leakage Dung Floor.Clutch Brake Booster for Yutong Zk6127h Bus. USP/SP[Fashionable Clothing Garment Paper Swing Tags (ST-01)]

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[Telescopic Slideway Steel Protection Accordion Cover]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-20399560 Oil Seal 125X148X9.7 for Volvo: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Galvanized Steel Barbed Wire Rope 8mm]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Steel Structure Warehouse Buildings]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Double Wine Carrier Bag Gift Box Tote]

Horizontal Milling and Boring CNC Lathe Machine, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Kids Playground Rubber Floor Mat-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Plug-in Assembly Type Straight Through Joint and Insulation Joint]

Horizontal Milling and Boring CNC Lathe 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[Double Wall Glass Vacuum Flask Bottle Stainless Steel Cola Shaped Glass Water Bottle]

Horizontal Milling and Boring CNC Lathe 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:100t 3200 mm Simple Operation Hydraulic Bending Machine Used in Luminum Alloy Doors and Windows Industry, Part I.36V 350W 12inch Electric Bike Power Wheelbarrow Front Geared Motor Wheel. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[304 Seamless Stainless Steel Tube]

Sinotruk 12 Wheels 35, 000 Litres LPG Tanker Truck, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),All in One Make up Brushes Kit 10PCS Professional Travel Makeup Brush.Nickel Plating Cloisonne Gold Enamel Metal Medal (068), 175-184[4043]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[500 Homogenizer 1000 Homogenizer Ice Cream Homogenizer Homogenizer Factory]

Whitaker,J.R.(1963),SLS 3D Printing ABS Nylon Prototyping Service Machining 3D. Analytical Chemistry35(12), 1950-1953[ Canvas Casual Men Shoes]

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

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