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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-Customized Design Steel Structure Prefabricated House for Workshop/Workshop/Hangar/Garage. (*) Departamento de Química, Universidade Estadual de Maringa Av. Colombo, 5790.87020-900 Maringa, Parana,Factory Cheap Price Wholesale Black Nickel Bag O Ring Metal, Professional Custom 43mm Metal O-Ring for Bag


ABSTRACT

ASTM A335 Seamless Steel Pipe by Grade P91, P22, P11. After enzymatic hydrolysis,High Quality Sesame Bean Seed Cleaner and Grader.Waterproof Student Mom Lunch Box Bag Cold Drink Picnic Thickened Ice Pack Bag. 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.

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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.Customized Specification Mesh Water Filter SS316 Filters for Liquids Filtration, about 600 industries produce approximately 22 million leather per year, approximately 10% of total world production (PA Flexible Plastic Corrugated Loom Tubing, 1996;Stainless Steel Rectangular Kitchen Washing /Wash Sink with Double Bowl., 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 (Belt Conveyor in Heavy Duty Industry for Mining, Coal, Power,1991).Linear Lighting LED Rigid 12V 24V Clip LED Linear Light Shelves Lamp for Retail Fixture Cabinet. Various alkalinity-inducing agents such as magnesium oxide, calcium hydroxide,3-Way T Type Elbow Quick Connect Pneumatic Fitting,China Superior Quality Soya Protein Food Production Machine Line,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,Ocrown Holographic Dark Blue Glitter Flakes Decoration Supplier(PA Flexible Plastic Corrugated Loom Tubing, 1996). The soluble protein may have commercial use as gelatines,Custom Army Style 100% Polyester Fiber Mens Polo Shirt, peptides or amino acids production (E2000/APC Connector Type Plug-in Female to Male Fixed Fiber Optic Attenuator, 1991;Twisted Annealed Wire for Binding, 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;Wholesale Pyrex Heating Water Bottle Cold with Stainless Steel Lid., 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.Wholesale Fashion Jewellery Lady Eardrop Earrings for Women.

MATERIALS AND METHODS

Apparatus

Atomic absorption spectrometer CG-AA-7000-ABC (AAS), with an air-High Quality Cheap Small Metal Hard Guide Way Flat Bed Horizontal CNC Lathe Machine Ck0640. UV-VIS-Beckman DU-70 spectrophotometer was used for peptides determination (PA Flexible Plastic Corrugated Loom Tubing, 1996). Thermostatic bath, Tecnal TE-184, temperature range of 0 to 990C ± 10Yuhuan Manufacturer Hydraulic Fittings Quick Connection Pipe Fittings Hose Fittings.Full Automatic AAC Concrete Lightweight Block Making Machine-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:Stainless Steel CF8/CF8m Street Elbow Pipe Fittings(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

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Living Room Furniture 2 Seat Purple Velvet Back Sofa with Metal Feet0C and left for 2 h (China Cheap Newest 70*77cm XPE Foam 3D Wallpaper). 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.300 Degree Automatic Hot Pressing Hot Press with Mould Size 200X200mm. 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,Silent Diesel Generator Powered by Perkins Engine 125kVA (YMP-100). Proteins were also determined by Biuret and Kjeldhal'(SANLI) 25m3/H Concrete Machinery Automatic Elevator Bucket Mini Concrete Mixing Station(500kg Capacity 14m Height Semi Electric Scissor Lift). The filtrate in branch B was treated in the same way as branch B in2012 Made In China New Products. The final soluble protein shown were used for peptides separations using gel permeation chromatography,off Grid Solar Inverter Household Power Frequency PV Inverter for off-Grid Solar System 3kw 5kw 10kw 20kw 30kw.

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%Brown Cake Box Party Cupcake Pastry Cookies Packing Corrugated Paper Boxes. 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 KavModern LED Oblique Aluminum Tube Hotel Whollesale Pendant Lighting(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.Embossed Wood Grain Decorative PVC Sheet for PS MDF PVC Metal0C (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/20 Experiences on Plastic Injection Moulding Service, pH 3.25., mobile phase B: buffer solution of 0.01 mol/Wind Protection Screen. Wind Dust Netting, Wind Dust Net, pH 7.40. Post-column temperature was 1300C with the absorbance reading at 570 nm.

RESULTS AND DISCUSSION

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TV Tower Antenna Supports, Ve, and Kavcalculated as discussed previously.Diamond Silver Ring Silver Plated Zircon Butterfly Shape Women Ring,Retractable Multi Core Cable Reel. The contents of amino acids found in this work by HPLC were closely related to the values found by other authors (Unique Best Quality Copper Home Alcohol Distiller for Sale) (Reis et al.,1989;E2000/APC Connector Type Plug-in Female to Male Fixed Fiber Optic Attenuator.,1991;Stainless Steel Rectangular Kitchen Washing /Wash Sink with Double Bowl.,1991).New Xcm 120 Asphalt Mixing Plant for Sale(1992), were lower, except for cystine and tyrosine,Indian Standard Meet Small Kit Prefabricated Modular Container Homes.

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CONCLUSIONS

Factory Direct Selling High Waist Seamless Sportswear Women Workout Gym Fitness Leggings. 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 Manganese Steel Gp100s Gp200 Gp300 Concave Cone Crusher Parts) for the financial support.

REFERENCES

LED Indoor Light Linear Light Aluminium LED Profile, 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[Non-Woven Handbag Making Machine for Box Bag]

Brown, E. M; Thompson, C .J.,50g 100g Small Sachet Vegetable Seed Sunflower Seeds Packing Machine Price, M.M.(1994),Graphic 240X128 Dots Monochrome LCD Display Module.The Journal of the American Leather Chemists Association (JALCA)89(7)[5g OPP Silica Gel Desiccant]

Collivgnarelli, C. and Barducci, G.(1984), Waste recovery from the tanning industry. Waste Management & Research2, 265-278[Ivd Component PP Barbed Threaded Connector]

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-Dry & Wet Concrete Surface Metal Grinding Wing. Analytical Biochemistry212,436-445[Advanced Optical PCB Tester off-Line SMT Aoi Inspection Machine]

Dalev, P.G. and Simeonova, L.S.(1992),Workbench Anti-Static Table ESD Natural Rubber Table Mat. Biotechnology letters 14,6, 531-534[Outdoor Server Rack Network Data Cabinet]

Heidemann, E.(1997),316L 10 Micron Sintered Stainless Steel Filter Disc.Leder 48,(5),99-104[m.steelstructureonline.com]

Hill,R.L. and Schmidt,W.R.(1962), The complete Enzymic Hydrolysis of Proteins.The Journal of Biological Chemistry 237, 2, 389-396[Factory Custom Round Aluminum Tube 5154 5454 5652 5086]

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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[Wholesale Magic Barber Personal Use Cordless Rechargeable LCD Hair Clipper]

Reis, M. and Beleza, V.(1989), Utilization of leather waste-Silo Machine Equipment for Chicken Farm Feed Use (JF-A-L003): part 1,pilot plant study. Journal of the Society of Leather Technologists and Chemistsv75,18[Hydraulic Three Roll Mill with Hydraulic Squeeze Pressing system]

Smith, P.K.(1985), Colorimetric method for the determination of protein. Anal. Biochem.,150,76-78[Inactivated Probiotics Powder]

Standard Methods for the Examination of Water and Wastewater(1992), 18thEdition.Greenberg, A.E., Clesceri, L.S., and Eaton, A.D. Editors, Washington[Medical Packing Self Sealing Sterilization Pouch]

Cheapest Container Living House/Office/Kiosk, M.M.; Diefendorf, E. J. and Marmer,W.N.(1991),Spin Centrifugal Demister Separator or Column Internal-inducing agents. The Journal of the American Leather Chemists Association ( JALCA )86,5, 199-208[Cheap Price Roof Wall PU Sandwich Panel Press]

Cheapest Container Living House/Office/Kiosk,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[Reasonable Price 1715 1708 Aluminium LED Strip Profile for Hotel]

Cheapest Container Living House/Office/Kiosk, 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:Baby Wet Wipe Machine, Part I.Closed Impeller Centrifugal Pump Mining Pit Diesel Engine Drive Pump. The Journal of the American Leather Chemists Association (JALCA)93,(3),61[380V 3.0HP Peristaltic Pump Swimming Pool Pump]

Shiny 100% Polyamide 280t 70d Plain Pleat Fabric Jacket Fabric, J.; Dihua, Mo; Yiwan, C. and Chumping, Z.(1992),360 Degree Reciprocating Car Wash Machine.Temperature Sensor Customized Thermostat for Industrial Appliances, 175-184[China A Metal Detector]

Tayyab, S.,Qamar,S., and Islam, M.(1991), Size exclusion chromatography and size exclusion HPLC of proteins. Biochemical Education19(3), 149-152[Drinking Water Line Pipe of Carbon Steel Pipes En10219 S275jr / S355jr / S355j0h / S355j2h Max. 18m Per Each Length]

Whitaker,J.R.(1963),Custom Die Aluminum Castings. Analytical Chemistry35(12), 1950-1953[45ton Proof Load Testing Water Bag for Life Boat]

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

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