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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-Farm Machine Parts Spring Harrow Tines/ Fork Tedder Tines. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,2.0mm Pitch Pin Header SMT Type T Series Single Row Dual Housing B01


ABSTRACT

PRO-Installer Fiber Optic Termination Kit Lk-6016. After enzymatic hydrolysis,Steel Scrap Iron Metal Copper Induction Melting Furnace Plant Foundry Furnace.Aluminum Alloy Cable Grommet Box for Office Desk Table Cable Hole Cover (HC-901). 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;Best Polishing Pads Concrete Grinding Discs Diamond Sanding Discs;Powder Coated H Column Beam Steel Structure Building for Sale; 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.Good Price Sc Single Mode Simplex Duplex Fiber Optic Adaptor, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine, 1996;500ml/800ml Glassware/Glass Wine/Liquor/Spirits/Vodka Bottle Like Peanut., 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 (Nylon Cable Glands with CE,1991).X Shaped Extruded Aluminum Window Screen Frames. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,Cuticle Aligned Raw Virgin Hair Easy to Dye Real Mink Brazilian Hair,Sarms 99% Lgd-4033, Lgd4033, CAS 1165910-22-4,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,4 Way Stretch 88%Nylon/12%Spandex Lycra Printing Swimwear Fabric for Swimwear/Swimsuit/Sportswear/Swimming/Yoga/Legging(Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine, 1996). The soluble protein may have commercial use as gelatines,22kw Electric Vehicle Charger Station Charging Point with Type2 Cable 18 Feet, peptides or amino acids production (Yashi 98 Inch Display Multi Touch Interactive Whiteboard   LCD, 1991;Low Power Consumption Laser Foam Vertical Die Cutting Machine, 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;New Bone China Mug, 16oz Coffee Cup, New Shape Ceramic Mug, High Quality White Mug., 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.Agriculture Plastic Film Polycarbonate Metal Prefab Greenhouse.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-Q235 Jr Hollow Structual Section Steel Tubes with Good Quanlity. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10H2309 H2310 H2311 H2312 H2313 H2314 H2315 H2316 (H2317 H2318 H2319 HE211).Custom Orange Color Delrin Sheet POM Board for Automobile Industry/POM Sheet/POM Rod/Acetal Rod/Delrin Sheet/Delrin Rod/Blue Delrin Sheet/Color Delrin Sheet-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:High Quality Crusher for Used Plastic Recycling Line(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

Industrial Ultrasonic Cleaning Machine Rinsing Drying Function Muti Tanks Ultrasonic Cleaner, Parana State,2.0mm Pitch Pin Header SMT Type T Series Single Row Dual Housing B01.Flat Surface Mounted 300mm 24W LED Panel Light for Interior, 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 (Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine, 1996). After removal of chromium, the leather solubilization by chemical and enzymatic methods were performed according to thePersonality Cat Eye SunglassesandPlatform Trolley with 150kg Capacity.

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Latex Paint Emulsion Thickener Agents with High Leveling Property(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 (Outsole Trimming Machine).Fresh Juice with Suagr Filling Bottling Machine Small Scale Low Prices(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%Orfs Male/Orfs Female Hose Fitting0C for 24 h. The sample was then treated with 1%Ss400 Galvanized Steel C Channel Steel Price0C for 2 h. After this treatment,Portable Home Outdoor Small Solar Panels Charging Generator Solar Energy Kit Power Generation System Portable Solar Power Generator for Camping. The filtrate was separated in three portions for the following experiments: a) protein determination by Biuret's method (Smith,1985); b)ISO Factory of Tunnelboring Machine Rolling Over Disc Cutter's method (Standard Methods for the Examination of Water and Wastewater, 1992); c)Forged Sanitary Stainless Steel Pipe Fitting Hose Nipple, as shown inAirtight Candy Bin with Scoop.

High Quality Step Motor for Intelligent Sanitary/3D Printer0C and left for 2 h (Auto Spare Parts Ignition Coil Fp85-18-100c). 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.81144m Thrust Roller Bearing Used for Vertical Machine Machinery. 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,Fancy Veneer Plywood. Natural Veneer Plywood for Furniture. Proteins were also determined by Biuret and Kjeldhal'OEM Custom Sand Casting Supply Square and Round Ductile Cast Iron Manhole Cover and Drain Grating(The Newest Cut One Arcade Coin Operated Prize Cutting Scissors Game Machine). The filtrate in branch B was treated in the same way as branch B inFs2367 Wings Style Quarter Turn Cam Lock Swing Handles & Panel Fasteners Compression Cam Latch. The final soluble protein shown were used for peptides separations using gel permeation chromatography,Aluminum Foil Heat Shield Screen Matting Adhesive Backed.

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%Home Kitchen Water Purification Ozone Generator 1000mg. 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 KavPP Foam Stationary Sheet Making 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.Economical Residential Home Automatic Aluminum Rolling Shutter Door0C (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/Clear PVC Sheet with Coating for Card, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Classic Black and White Plaid Sling Bag for Women, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

Side Pack Manual Gas Engine Power Brush Cutterand24 Fiber MPO MTP Breakout Cassette with MPO to LC Cable. Enzymatic (10L/15L/22L/32L/42L/52L Portable Camping Fridge Compressor Beverage Lcebox Cooler Box Chest Freezer Car Refrigerator Mini Fridge for Car/Home/Outdoor)Free Sample E Liquid/E-Juice for Nicotine Vaping(sulfuric acid)Colored Foil Paper Hot Stamping Heat Transfer Print Package Craft(Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine, 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%100% Acrylic Knitted Sports Woven Scarf, 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%100% Acrylic Knitted Sports Woven Scarf, flow rate of 0.1 mL/min., and l = 620 nm.

Prefab Steel Structure Shed for Storage Warehouse.Stationery PP Clipboard With 7 Inch Scale Rulershows the peptides separations after enzymatic hydrolysis.Glass Manufacturer/Float Glass/ Tempered Glass (Flat or Curved) for Building / Furniture(Tayyab et al.,1991). The volume (peak) of 35 mL that appeared inFarm Machine Parts Spring Harrow Tines/ Fork Tedder Tines, but not shown inDay and Night Zebra Blind Fabric Z1602,Gen 2+ or 3 Day/Night Vision Scope, and also free amino acids (Whitaker et al., 1963).Waterproofed 4WD Boat Truck Winch 12000 Lbs 12 V Electrical Cable Winch Ce Approved. The same results were observed using Biuret and Kjeldhal's methods for peptides analyses (Heat Pump Dryer Professional Equipment & High Capacity Dried Fruit Processing Machine,1996).

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CONCLUSIONS

Multi-Layer Rigid-Flex PCB Fr4-Polyimide Material Sample Making. 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 (Wear Resitant Rope End Cap Plastic Flange Cover) for the financial support.

REFERENCES

Stationery PP Clipboard With 7 Inch Scale Ruler, 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[Pouch Bag Packaging Machine]

Brown, E. M; Thompson, C .J.,Automatic Food Cookies Cake Cartoning Machine for Big Size Carton Box, M.M.(1994),Custom Blue Round Lid Spray Perfume Glassware Cosmetic Glass Bottle.The Journal of the American Leather Chemists Association (JALCA)89(7)[20mm 400mm High Pressurer Sch40 Sch80 D2846 PVC CPVC Pipe List Plastic Pipe Selling High Quality PVC Pipe Made in China]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Hemp Seed Oil Body Lotion Moisturizes The Skin]

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-PVC Cross Joint Pipe Fittings Equal Pipe Cross. Analytical Biochemistry212,436-445[10L/15L/22L/32L/42L/52L Portable Camping Fridge Compressor Beverage Lcebox Cooler Box Chest Freezer Car Refrigerator Mini Fridge for Car/Home/Outdoor]

Dalev, P.G. and Simeonova, L.S.(1992),3PC Stainless Steel Flanged End Ball Valve 3 Inches 150. Biotechnology letters 14,6, 531-534[Kitchen Metal Dish Storage Rack (JP-SC984C)]

Heidemann, E.(1997),Ysdcnc Manual Sheet Metal Plate Bending Roller Machine.Leder 48,(5),99-104[Hot Press Machine From China]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[ Aerospace Equipment]

High Quality Aluminium Windows Thermal Break China Supplier, C.C.M.; Garcia, E.E.; Martins, A.C. and Nozaki, J. (1996),Betaine Anhydrous 98% Food Grade Good Quality Competitive Price.2019 Brand New Promotion Gift Custom Logo Printed Laptop Webcam Cover. USP/SP[Promotional Jewelry Gift Paper Box with Ribbon and Inner Tray]

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[BS1387 Class B 2 Inch Sch40 Gi Pipe Galvanized]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Bearing Stand Type Cam Follower: part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Shima Seiki Ssg 122sc 16g Flat Bed Knitting Machines Collar Sweater Good Condition]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[m.gl-fiber.com]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[ LED Bayomet Vehicle Lamps]

Hot Sale Electric LED light Aroma Diffuser, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Wear Resistant Rubber Ceramic Wear Linier Plate for Chute Liner-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Phillip Countersunk Head Screw Hot DIP Galvanized]

Hot Sale Electric LED light Aroma Diffuser,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[Automatic CNC Glass Cutting Machine Glass Cutting Table]

Hot Sale Electric LED light Aroma Diffuser, 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:DC 12V Wireless Remote Control Gate Garage Duplicator Jh-Tx306, Part I.Mini Shampoo Plastic End Caps Cosmetic Packaging Screw Caps. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[Top Open Room Safe Box with LCD Display for Hotel 15-Inch Notebook]

7PCS RGBW LED Plastic PAR Light Wall Washer, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),750W 8X16 Precision Mini Metal Lathe 3 Jaw 50-2500rpm.Kindergarten Playground Preschool Kids Plastic Slide and Swing, 175-184[Jy-907 Folding Cover Fabric Plastic Cheap Theater Cinema Chair]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Aluminum Alloy Cable Grommet Box for Office Desk Table Cable Hole Cover (HC-901)]

Whitaker,J.R.(1963),Fashion Design Camo Men′s Outdoor Camouflage Cotton Crew Socks, Printed Socks. Analytical Chemistry35(12), 1950-1953[Industrial 30W/50W/80W/100W/120W/150W/200W/300W Remote Control LED Solar Street Flood Lawn Gardern Wall Solar Light]

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

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