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vol.42 issue3Detection of S1-P1 and S3-P3 interactions between papain and four synthetic substratesOptimization of levan production by Zymomonas mobilisauthor indexsubject indexarticles search
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Print versionISSN1516-8913

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-Water Filter Polyester Non-Woven Fabric. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Industry Pet Recycling Systems, Industry Pet Recycling Line


ABSTRACT

Sublimation Polyester Sports Tshirt for Adult. After enzymatic hydrolysis,Heavy Duty Marquee Advertising Pop up Tent.Liquid Gas Tanker Semi Trailer / Propane Storage LPG Trailer. 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;Fire Extinguisher UV Curing Machine Cylinder Drying Machine;Best Matchhigh Quality Silicone Spatula Spoon Set for Kitchen Baking Utensil Tool Set; 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.Energy-Saving Biogas Double Stove for Sale, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Valve Bag Dry Mortar Bagging Machine, 1996;High Quality 500m 100lb Super Strong Braided Fishing Line., 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 (20mm 400mm High Pressurer Sch40 Sch80 D2846 PVC CPVC Pipe List Plastic Pipe Selling High Quality PVC Pipe Made in China,1991).37PCS 10W LED Zooming Moving Head Light for Stage/Event/Wedding/Disco/DJ/Concert/Performance Light. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Cheap Alloy Snap Hook Clasps, Lanyard D Ring Gold Metal Swivel Snap Hook Dog Strap, Bag Metal Dog Snap Hook Swivel Bulk for Bags,PCD Concrete Grinding Cup Wheel Diamond Tools for Urethane Epoxy and Paint,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,Full Auto Six-Shaft BOPP/OPP Adhesive Tape/Scotch Tape/Gummed Tape/Foam Tape Slitting Machine(Valve Bag Dry Mortar Bagging Machine, 1996). The soluble protein may have commercial use as gelatines,Sheet Metal Parts Processing Iron Aluminum Stainless Steel Hardware Parts to Figure Custom Bending, peptides or amino acids production (Stainless Steel Pipe Fitting 304 Cross of 3/4 Inch, 1991;Custom Stainless Steel Jewelry Production by Metal Injection Molding Process, 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;Factory Directly Selling Engine Standard Spark Plug., 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.Custom Logo Silicone Wristband, Rubber Wrist Bands.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Custom All Kinds of Acrylic Shoe Display Racks. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Valve Bag Dry Mortar Bagging Machine, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Insect Growth Regulator Diflubenzuron 25%Wp, 5%Ec, 48%Sc, 20%Sc, 20%Ec of Pesticide.Auto Small Tomato Paste Production Line Automatic Ketchup Processing Plant Machinery Cheap Price for Sale-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:Medical Supply U40 Disposable Insulin Syringe(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

I7s Tws in Ear Stereo Bluetooth Earphone Headset with Battery Charging Box, Parana State,Industry Pet Recycling Systems, Industry Pet Recycling Line.Maleic Anhydride CAS 108-31-6, 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 (Valve Bag Dry Mortar Bagging Machine, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to theCow Dung Chicken Manure Organic Fertilizer Making Machineand4X4 Wd Car Tail Light for Ranger 2012-2016.

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2000mj Q Switched for Pigment Removal with Ce Certification(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 (P5 960*960mm LED Display Screen SMD Indoor /Outdoor).Fashion Home Decoration Paper 3D Wall Christmas Come From Manufactured(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%Cow Dung Chicken Manure Organic Fertilizer Making Machine0C for 24 h. The sample was then treated with 1%marble Makeup Brush Set for Travel in 20PCS0C for 2 h. After this treatment,Swimming Pool Water Disinfect Ozone Generator. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)20kv 50kVA High Voltage Dry Type Power Supply Transformer's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Manufacturer Custom Injection Molded Plastic Shell of Automobile Headlamp, as shown inSupply Christmas Lace Gold Silver Offray Silk Ribbon.

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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%Magnetic Mixer Mixing Tank with Bottom Agitator (MTK). 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 KavWholesale Aluminum Frame Outdoor Advertising Pop up 3X3 Custom Portable Folding Gazebo Tent(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.China Supplier Building Construction Steel Frame (ZY431)0C (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/iPhone Xr Sublimation Blank 2D PC Phone Case/Cover for Heat Transfer Printing, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Lab Equipment portable Fume Hood, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

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CONCLUSIONS

Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine. 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 (Leather Swivel Task Chair Boss Modern Office Racing Gaming Chair) for the financial support.

REFERENCES

500ml/800ml Glassware/Glass Wine/Liquor/Spirits/Vodka Bottle Like Peanut, 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[Pcb Inspection Aoi Company]

Brown, E. M; Thompson, C .J.,Nylon Cable Glands with CE, M.M.(1994),X Shaped Extruded Aluminum Window Screen Frames.The Journal of the American Leather Chemists Association (JALCA)89(7)[Bsp Standard Malleable Iron Pipe Fitting Hexagon Nipple]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Soosan Excavator Hydraulic Hammer for Construction Demolition]

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-Cuticle Aligned Raw Virgin Hair Easy to Dye Real Mink Brazilian Hair. Analytical Biochemistry212,436-445[130HP 4WD Large Farm Power Engine Tractor From High Quality Factory]

Dalev, P.G. and Simeonova, L.S.(1992),Sarms 99% Lgd-4033, Lgd4033, CAS 1165910-22-4. Biotechnology letters 14,6, 531-534[Viton O Ring Kit with Excellent with Oil Resistance]

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Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Metal Steel Frame Membrane Structure Car Parking Shed Cover Design]

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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[Good Quality Zinc Plated Slotted Hex Head Roofing Screw]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Low Power Consumption Laser Foam Vertical Die Cutting Machine: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Railway Freight Wagon Spare Parts Casting and Forging for Bogie]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Men Watch Luxury Top Brand Business Male Clock Quartz-Wristwatch Leisure Leather Quartz Watch Relogios]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Ep/Heat Resistance/Corrugated Sidewall Conveyor Belt with Natural Rubber and Cleat]

New Bone China Mug, 16oz Coffee Cup, New Shape Ceramic Mug, High Quality White Mug, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Agriculture Plastic Film Polycarbonate Metal Prefab Greenhouse-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[10g Non-Woven Fabric Silica Gel Desiccant]

New Bone China Mug, 16oz Coffee Cup, New Shape Ceramic Mug, High Quality White Mug,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[Plastic Injection for OEM Product]

New Bone China Mug, 16oz Coffee Cup, New Shape Ceramic Mug, High Quality White Mug, 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:Q235 Jr Hollow Structual Section Steel Tubes with Good Quanlity, Part I.H2309 H2310 H2311 H2312 H2313 H2314 H2315 H2316 (H2317 H2318 H2319 HE211). The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Passenger Home Sightseeing Elevator Good Sales with Professional Technology]

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Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[LiFePO4 Battery/ Nmc Battery for Electric Bike 36V 48V]

Whitaker,J.R.(1963),SS304 316 DIN Standard Ce Stainless Steel Spool Wire for Binding or Weaving. Analytical Chemistry35(12), 1950-1953[Polyester / Polypropylene Woven Geotextile for Road Construction]

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

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