Sukahan (weifang) Bio-technology Co., Ltd.

weifang, China

AU-PE89 Xylanase for Improved Bleaching of Paper Pulps 1.IRODUCTION Xylan is a major component of wood and non-wood fibres. During cooking of pulps, the xylan is partially dissolved, modified and re-precipitate onto the fibre surface. The application of the enzyme, xylanase, to the cooked pulp removes some of the re-precipitated xylan. This opens up the pulp matrix, allowing the release of trapped soluble lignin. At the same time it allows bleaching chemicals to penetrate more effectively. The overall result is improved bleachability of the pulp with resulting reduction in usage of bleaching chemicals. AU-PE89 Xylanase is an enzyme that degrades xylan. AU-PE89 is specific for xylan and does not degrade cellulose. Xylanases produced by different microorganisms operate optimally over a range of pH and temperature. AU-PE89 was developed from a proprietary strain of bacterium for the paper pulp industry. AU-PE89 is particularly suited to the elevated temperatures and alkaline pH of kraft pulps. The manufacturing process involves growing a specific proprietary bacterium in bioreactors (fermenters), separating the cells from the broth, and concentrating the clarified liquid. The product is prepared as a concentrated liquid or light brown powder. 2.TECHNOLOGICAL ADVANTAGE AU-PE89 acts as a pre-bleaching aid for paper pulps. AU-PE89 has specific advantages in that it is stable and active at the alkaline pH and elevated temperatures typical of kraft pulps. The main driving factors for acceptance of this technology in pulp mills have been the economic and environmental advantages over chemical bleaching. AU-PE89 used as a pre-bleaching agent for wood and non-woody pulps can reduce chemical bleach consumption from between 15 to 50%. 3.SPECIFICATIONAU-PE89 is a product derived from the culture of a strain of Bacillus subtilis. The principal active ingredient of AU-PE89 is xylanase (endo-1, 4--xylanase, EC 3.2.1.8), an enzyme that degrades and solubilizes plant xylans. AU-PE89 is prepared with a xylanase activity of about 85, 000 XU/mL. The xylanase units are determined on birchwood soluble xylan at pH 6 and 50C over a 20 minute period. AU-PE89 xylanase is effective over the pH range 6 to 10 and temperature range 35 to 65C AU-PE89 is a light brown powder with a density of 1.1 g/mL. It is readily miscible with water. 4.BENEFITS OF AU-PE89 Reduce Organochlorines in WastewaterFor mills using active chlorine as a bleaching chemical, AU-PE89 can eliminate or substantially reduce the chemical and environmental load of toxic organochlorines in mill effluent. Reduce Chemical CostsFor mills using environmentally friendly bleaching agents such as hydrogen peroxide, AU-PE89 can result in a significant cost saving. AU-PE89 has the potential to reduce bleaching chemical by15 to 50%. Increase Pulp Production CapacityPre-bleaching pulps with AU-PE89 allows pulp production capacity to be increased where on-site chlorine dioxide production is a limiting factor. Higher Pulp BrightnessFor a given dosage of bleaching chemical, pre-bleaching with AU-PE89 can give a higher brightness pulp, thus providing the mill with a better quality paper. AU-PE89 can increase the pulp brightness by 2 to 6%. Easily IncorporatedAU-PE89 is easily incorporated into existing bleach lines. Typically, installation requires only a mixing tank and dosage pump. Reduce Effluent LoadApplication of AU-PE89 in the bleach plant can reduce COD, BOD and color of effluent. AU-PE89 can significantly reduce COD, BOD and color of effluent. 5.APPLICATION AU-PE89 xylanase can be added to pulp after cooking or oxygen delignification and prior to bleaching for the improvement of pulp bleachability. Almost every mill has unique conditions of fibre furnish, pulping technology and bleach sequence. The optimal dosage can also depend on the temperature, pH and consistency of the pulp. Application protocols for AU-PE89 can be tailored to best suit the specific process. However, the following general application optimal conditions apply. Dosage 200-250g/ T pulp (o.d.basis)Pulp properties PH between 6.5 and9.5Temperature between 45 and 55CPulp consistency between 6 and 10% (recommended 8%)Residence time above 1 hour 6.STORAGEAU-PE89 maintains its stated activity for at least six months when stored at temperatures below 25C. The product maintains its activity for considerably longer when stored at lower temperatures. The product should not be frozen. 7.HANDLING PRECAUTIONSAU-PE89 is non-toxic and biodegradable. However, unnecessary contact with the product should be avoided. Long term exposure to protein based products such as AU-PE89 may sensitise certain individuals to the product

AU-PEA550 Starch Conversion Enzyme 1.INTRODUCTION:Starch, a high polymeric carbohydrate is a mixture of two polysaccharide, such as amylose and amylopectin. Starch conversion enzyme can change the internal structure of starch, which will decrease the starch viscosity, thereby meeting the requirement in papermaking process. AU-PEA550 is an Amylum conversion enzyme derived from the submerged fermentation of Bacillus subtilis. It is mainly used in the pulp and paper making industry. 2.TECHNICS: The function of AU-PEA550 is equal to starch modifying agent. With unique advantages, it is applicable to various kinds of paper pulp. The surface sizing agent for paper now is usually oxidized starch. The main disadvantages of traditional method of modifying oxidized-starch such as high cost, difficulties in controlling oxidation degree and environment pollution among others, can be easily conquered by enzyme starch modifying techniques. 3.BENEFITS: The benefits of using AU-PEA550 for modifying original starch are easier operation techniques, lower cost and no pollution. This product can still have the indicated activity after three months storage under 25celsius. In lower temperature, the activity of the product will last longer. This product should not be frozen. 4.CHRACTERISTICS: 1.AU-PEA550 provides maximal benefit at pH range of 6.0 7.0 and at the temperature of 65 70celsius 2.The product has an optimum pH of 6.0-6.5 and is deactivated at pH below 5.0. 5.SPECIFICATION AU-PEA550 is available in liquid preparation as: AU-PEA550 (powder) Unit definition: The amount of enzyme needed to hydrolyze 1 mg of starch in one minute at pH 6.0 at the reaction temperature of 60celsius and the unit can be showed as u/ml. 6.CARRIED STANDARD: This product follows the industry standard of PRC as QB1805.1-93. 7.APPLICATION AND DOSAGE: Add AU-PEA550 at the rate of 0.2-0.5 U/g together with calcium (Ca2+) at a concentration of 50-70ppm. The dosage should be decided through experiments according to the real objective conditions. 8.PACKAGING: 25 kg/plastic drum Alternative packaging is available upon request for smaller or larger volumes. 9.STORAGE: Store in a cool, dry place and away from direct sunlight. AU-PEA550 maintains its activity for considerably longer time when stored at lower temperatures (below 25celsius). The product should not be frozen. 10.HANDLING PRECAUTIONS: AU-PEA550 is non-toxic and biodegradable. However, unnecessary contact with the product should be avoided. Long term exposure to protein based products such as AU-PEA550 may sensitize certain individuals to the product. Wash hands with warm soapy water after handling. Keep out of reach of children. 11.TECHNICAL SERVICE: Sukahan (Weifang) Bio-technology Co., Ltd can help our valued customers to use this product directly!

Office Waste Paper Enzymes for De-inking Applications Description: SKHZYE-DPE91 is an enzyme complex that selectively modifies cellulosic fibers to aid in the separation of ink and other debris from recycled papers. SKHZYE-DPE91 is in powdered form and will operate in broad range of pH 58 and temperature 25 oC60 oCProduct Benefits: When applied as directed in this bulletin, SKHZYE-DPE91can help to accomplish the following:1. Decreases the need for pulping chemicals such as soda, peroxide and silicate.2. Reduces black spots from both thermochemical inks and oil based inks.3. Reduces stickies through dispersion.4. Increases in whiteness and brightness of up to 3 points.5. Improves softness due to easier fiber rewetting and swelling.6. Reduces fines leading to cleaner white water loops.7. Improves paper strength properties.8. Improves paper formation and drainability leading to either the reduction of steam demand for paper drying or conversely increases in the paper machine speed and runnability.9. Reduces COD level in waste water treatment and therefore the reduction of the chemical load in the treatment of the aforementioned waste water.Properties: Appearance: Tan to light yellow powder (Note that color does not affect or reflect activity.)Odor: Slight fermentation odorSolubility: Miscible with waterpH (1% solution): 4.5 + 1.0Effect of Temperature: SKHZYE-DPE91 will function from 25 oC60 oC with an optimum of 50 oC60 oC. Higher operating temperature results in higher enzymatic activity providing lower enzyme dosage for a particular application.Effect of Ph: SKHZYE-DPE91 It will function from a pH of 4, 508.5 with an optimum of 6.5-7.5.Dosage: SKHZYE-DPE91 is added at a dosage between 20-50 g/ton (metric ton) of dry pulp. We have found a general optimum at 30 g/ton. Contact your representative for further assistance in determining optimal dosage for your mill. The enzymatic treatment is best at the digester (wastepaper repulper). Termination: SKHZYE-DPE91 can be inactivated by raising the pH above 11.0 or temperature above 71 oC (160 oF) or a combination of the two. Oxidizers such as peroxide and hypochlorite can also be used to inactivate the enzyme. In the pulp and paper process, SUKADEN-91 is inactivated in the dryers at the paper machine. No residual enzymatic activity will be found in the manufactured paper. Packaging: Standard package size for SKHZYE-DPE91 is 25 kilogram plastic drums. Alternate custom packaging is available upon request for smaller or larger volumes. Handling and Safety: SKHZYE-DPE91 can be an irritant to some individuals; avoid contact with skin and eyes. Take necessary precautions to avoid breathing dust. Long term exposure to protein based products such as SUKADEN-91 may sensitize certain individuals to the product. Always close drum after opening. Storage: SKHZYE-DPE91 retains more than 90% activity after 12 months when stored at lower temperature (below 25, 77 oF) out of direct sunlight and in the original, closed container. SKHZYE-DPE91 also retains more than 90% activity after 1 month when stored at 38 oC (100 oF). Do not let freeze.

Paper Enzyme SKHZYE-DGM93Stickie reducing enzyme for stickies removal INTRODUCTION The problems caused by stickies are many and varied and can occur at practically every stage in the papermaking and paper conversion chain including printing. Finding a suitable way to treat them can be difficult. The problem is complicated by the fact that there are two types of stickies: (1) Primary stickies, insoluble components that are tacky under normal conditions and are present in the incoming recycled paper and coated broke, (2) Secondary stickies, composed of the soluble components of adhesives and chemicals used in papermaking and converting. They can be more difficult to handle than primary stickies. PRODUCT DESCRIPTIONSKHZYE-DGM93 is a complex enzyme preparation intended primarily for stickies reduction in deinking pulp mills and papermills using recycled fibers. SKHZYE-DGM93is a powdered form of a blend of cellulase and other enzymes operating between a broad range of pH (4.5-9.0) and temperature (25-70C) and is used in the range of 180-360 g/ton of dry pulp. The SKHZYE-DGM93 product is in liquid form, with a tan to orange color, a slight fermentation odor, miscible with water and has a pH of 5.51.0 at 30oC.BENEFITS OF SKHZYE-DGM93Primary Benefits (Stickies Removal) 1. Elimination of the need for soda pulping. Neutral pulping can be used. 2. Improvement in quality. 3. Improved stickies removal efficiency. 4. Lower cost (higher contamination) raw materials can be utilized. 5. Reduction in downtime due to cleaning and sheetbreaks. 6. Improves quality of process water. Lower COD, less toxic and contain fewer micro-stickies 7. Greater customer satisfaction Secondary Benefits 8. Elimination of the need for soda pulping. 9. Reduction in REFINING ENERGY. Reduction in Refining time or Amperage leading to a reduction in electrical costs. 10. Improvement in FIBRE YIELD. Increase in fines retention from increased fibrillation (micro-fibrillation). Helps to reduce build-up of fines in forming and press fabrics, increasing fabric life. 11. Improvement in WASTEWATER QUALITY. Reduction of fines and the cleaning of white water loops. 12. Improvement of PAPER STRENGTH properties. Enhances paper strength by increasing inter-fiber bonding through fibrillation (micro-fibrillation). 13. Improvement in MACHINE RUNNABILITY. Cleaner whitewater system helps to reduce slime build up that causes sheetbreaks. 14. Reduction in STEAM LOADING or INCREASE IN PAPERMACHINE SPEED. Improvement in drainability leading to either the reduction of steam demand for paper drying or conversely increases in the paper machine speed. 15. Improvement in PAPER QUALITY. Improvement in paper formation due increased fines retention and more efficiently refined pulp. Reduction in vessel picking during printing of paper produced with hardwood virgin pulp. 16. Savings in RAW MATERIAL costs. Allows the use of lower quality and cheaper furnishes. 17. Savings in CHEMICAL costs. Reduction in consumption of retention aids and strength enhancing chemicals. APPLICATION SKHZYE-DGM93 is a complex enzyme preparation intended primarily for stickies reduction in deinking pulp mills and papermills using recycled fibers. Almost every mill has unique conditions of fiber processing. The optimal dosage can also depend on the temperature, pH and consistency of the pulp. Application protocols for SRE can be tailored to best suit the specific process. However, the following general application optimal conditions can be used. Dosage180-360 g/ T pulp (normally added at thehydropulper to ensure uniform mixing)Pulp properties pH 7.0 Temperature: between 50 and 60celsius Termination: can be inactivated by raising the pH above 11 orthe temperature above 71C (160F)Experimental White Office Waste was charged with acrylate PSA (pressure sensitive adhesive) and pulped in hydropulper at 35oC. The pH was adjusted to compare alkaline and neutral pulping effects. Pulp was then subjected to the same flotation and screening (0.15mm) process. Residual stickies (ppm) on dyed handsheets were measured using a flatbed scanner and image analysis software. ResultsPulping treatment Stickies (ppm)0.02 to 4.0 mm2 < 0.02 mm2Alkaline pH (10) 710 106Neutral pH (7) 634 98Cellulase (competitor) treated , pH 7 430 73SUKASRE-93 treated (pH 7) 402 47*Starting pulp impregnated with PSA contained 900ppm adhesive particlesSTORAGE Store in cool, dry place and away from direct sunlight. The product maintains its activity for considerably longer time when stored at lower temperatures (below 25celsius ). When stored in sealed containers, under cool dry conditions, SKHZYE-DGM93has a loss of activity of normally less than 10% over one year. The product should not be frozen.HANDLING PRECAUTIONS SKHZYE-DGM93 is non-toxic and biodegradable. However, unnecessary contact with the product should be avoided. Avoid direct inhalation. Long term exposure to protein based products such as SKHZYE-DGM93 may sensitize certain individuals to the product. Wash hands with warm soapy water after handling. Keep out of reach of children.

SUKACell-N1000 Netural Cellulase INTRODUCTION Cellulose is an unbranched glucose polymer composed of anhydro-D-glucose units linked by 1, 4-b-D-glucoside bonds. These glycosidic bonds can be hydrolysed by cellulolytic enzymes. The native structure of the cellulose is composed of crystalline and less organized amorphous regions. SUKACell-N1000 is an enzyme preparation obtained from the submerged fermentation of a high cellulase-producing microbial strain. It is widely used in textile and garment stone wash industries. PROPERTIES:- SUKACell-N1000 will function from a pH of 5.5 to 7.0, better perform at 6.0 to 6.5. It will function from 50C to 60C Appearance: Tan powder (Note that color does not affect or reflect activity.) Odor: Slight fermentation odor pH (1% soln)3.5-5.5 SPECIFICATION SUKACell-N1000 (activity is 1000 U/g) High activity product is available upon request of our customers. ENZYME ACTIVITY UNIT DEFINITION Reducing sugar method At a pH of 6. 0 and temperature of 50 C, to produce the amount of reducing sugar equivalent to 1 mg glucose, it needs l g solid enzyme (or 1mL liquid enzyme) and 1 h hydrolyze sodium carboxymethyl cellulose substrate, as 1 enzyme activity unit, state as u/g (or u/mL). CMCA DNS for short. EXECUTION STANDARD This product follows the industry standard of PRC as QB 2583 2003 USAGE SUKACell-N1000 - is a kind of netural solid cellulase, used for biofinishing, significantly soften 100% cotton fabrics, both woven and knits.SUKACell-N1000 provide soft touch except used for jean leaven dye processing.SUKACell-N1000 - can obviously improve clothing surface magnitude.OPERATION & DOSAGE Stonewashing1. Desize thoroughly. 2. Drain liquor then fill machine to liquor ratio of 1:10. (jean/ water) 3. Add pumice 0-0.5 kg, heat bath to 40C-60C and optimum temperature is 55C. 4. Add SUKACell N1000 at the rate of 0.25-1.0% owg. 5. Adjust pH to 5.5-7.5 with pH 6.0-6.5 as an optimum. 6. Process for 30-45 minutes depending on desired effect. 7. Add water and soften after drainage. PACKAGING:25KG/DRUM , different packing is available accoridng to requirment

AU-MTPE90 Special Enzyme Used for Chemi-mechanical Pulping and Long Fiber Pulping Introduction: AU-MTPE90 is the special paper enzyme used for chemi-mechanical pulping and long fiber pulping. It is extracted from three special-effect enzymes and is suitable for the range of pH 5.0-8.0 and temperature 22-65 C. Based on its effects to fibers in pulp, AU-MTPE90 can make the fibers absorb adequate water and expand and promote fiber brooming, so reduce the energy consumption in the subsequent pulping process. Because the fibers absorb enough water and are fully expanded, they become soft and thickening, and increase the bulk and flexibility. At the same time, AU-MTPE90 can re-combine the fiber fines, which is conducive for water draining of wet sheet, can reduce the fiber fines content in white water and improve the recycling rate of white water, thereby reduce consumption and clear water usage per ton primary pulp. AU-MTPE90 has certain stripping roles to slime pulp adhered in the system, long tome use can make the entire approach system of paper machine more, avoid the paper flaw such as color spot and paper breakage phenomenon resulting from slime pulp, reduce the cleaning frequency of forming wire and blankets and prolong the life of forming wire and blankets. Advantages: 1. Polymerization The polymerization can re-combine the fiber fines in pulp. When AU-MTPE90 bio-enzyme is added into the pulp, it firstly meets with the fiber fines in the pulp. For its quantity is countless times more than the fiber fines, the bio-enzyme can surround the fiber fines and re-polymerize them together. When these fiber chains collide with long fibers, they attached to the long fibers; at the same time, due to the very small size of AU-MTPE90, when they are added into the pulp, even contact with long fibers firstly, they will be bounced. However, after they are re-combined with fiber fines and form larger sizes, together with their own adhering property, they will re-combine with the long fibers when encountered again in the last period. The advantages derived from this characteristic of AU-MTPE90 are listed as follows: a) To reduce the white water concentration of paper machine, increase retention rate, reduce consumption per unit pulp, increase production per unit time and create benefits for enterprise. b) The closed recycling water will become clean, which can reduce the cost of water treatment or the added amount of clear water and create benefits for enterprise. c) The paper strength of short fiber parts will be increased, which can reduce the proportion of high-quality raw materials and create benefits for enterprise. d) The drainability of pulp will be significantly strengthened and the rotating speed of paper machine will be increased, thereby increase the production or shorten the available machine time. 2. Brooming Effect AU-MTPE90 bio-enzyme can directly effect on the fiber surface and make the smooth fiber surface generate many fiber branches, which plays the role of brooming. The advantages derived from this characteristic are as follows: a) Since the connection among the fibers after brooming becomes multi-point connection, the tension, break-resistance and tearability of finished paper are all been increased. Together with the re-combination of fiber fines to the fiber branches after brooming, the quality of paper is further improved, which can increase the market competitiveness of enterprise products. b) Due to the improvement of strength, the proportion of high-quality raw materials can be reduced, which can create benefits for enterprise. 3. Expansion of Water Absorption AU-MTPE90 can loose the fiber internal structure and make the fibers be easy to absorb water and expand. Its advantages are as follows: a) The fibers after expansion of water absorption will be softened, which can save the energy consumption for jordaning and create benefits for enterprise. b) To increase the bulk of finished paper, that is, in the same amount the thickness of paper will be increased, which can increase the market competitiveness of enterprise products. Based on the above effects, enterprise can also reduce appropriately the beating degree of jordaning without changing the quality parameters of finished paper, which can reduce the energy consumption at the same time. 4. Antibacterial Action and Cleaning System It has certain stripping effects to slime pulp adhered in the system, long tome use can make the entire approach system of paper machine more, avoid the paper flaw such as color spot and paper breakage phenomenon resulting from slime pulp, reduce the cleaning frequency of forming wire and blankets and prolong the life of forming wire and blankets. Taking all these advantages: AU-MTPE90 can make the pulp cleaner, improve the whiteness of pulp, extend the life of paper blankets and at the same time, can improve product quality, reduce energy consumption and produce no pollution. Characteristics: Appearance: light brown powder pH: 6.5 0.3 Odor: faint fermentation odor Density: 1.2 - 1.3 g/ml Activity: 16000 clunit / gram + / - 5% Effective temperature: Optimum temperature: 30 - 40 C Effective temperature: 22 - 65 C Effective pH value: Optimum pH value: 6.5 - 7.5 Effective pH value: 5 - 8 Optimum dosage: 45 - 70g per ton pulp Conclusion: AU-MTPE90 will become ineffective only when pH 9.5 or temperature 65 C or concurrence of both. If AU-MTPE90 is ineffective, it usually can be found when paper drying, also can be found in the produced paper that AU-MTPE90 does not have any effect. Package: 20 kg per bucket, the specific weight of the package may vary according to user requirements. Notice: Avoid contact with skin and eyes. If leakage occurred, wash with water. When taking AU-MTPE90 from the barrels, the tools shall be dry. Storage: If sealed and stored in cool and dry place, the reduction of its activity will be no more than 10%. Seal after use. Technical Services: Sukahan (Weifang) Bio-Technology Co., Ltd. will assist our customers to use the product correctly.

SKHZYE-TPE90 Tissue Paper Enzymes 1. INTRODUCTION: SKHZYE-TPE90 is a complex enzyme preparation intended for modifying cellulosic fibers to improve the compression strength of paper under the proper processing conditions. SKHZYE-TPE90 is easily added to existing systems without the need of complex or specialized equipment and has a broad range of PH (5.0-8.0) and temperature (22C-65C). 2. PHYSICAL PROPERTIES: Appearance Tan powder (Note that color does not affect or reflect activity.) Odor Slight fermentation odor Solubility: water soluble PH: 6.5 0.3 3. PRODUCT CAPABILITIES: 1.Elimination of the need for soda pulping.2.Reduce refining energy. Save refining time and electrical costs.3.Improve paper formation.4.Improvement in WASTEWATER QUALITY. Enhance the drainage rates of papermaking furnishes.5.Improvement of PAPER STRENGTH properties. Enhances inter-fibre bonding by bonding through fibrillation (micro-fibrillation) and avoid fiber breakage.6.Improvement in MACHINE RUNNABILITY. Cleaner whitewater system helps to reduce slime build up that causes sheetbreaks.7.Reduction in STEAM LOADING or INCREASE IN PAPERMACHINE SPEED. Improvement in drainability leading to either the reduction of steam demand for paper drying or conversely increases in the paper machine speed.8.Improvement in PAPER QUALITY. Disperse stickies and other contaminants improving paper quality.9.Savings in RAW MATERIAL costs. Allows the use of lower quality and cheaper furnishes.10.Savings in CHEMICAL costs. Reduction in consumption of retention aids and strength enhancing chemicals. 4. RECOMMENDATIONS FOR USAGE: Effect of Temperature: It will function around temperature 22oC65oC with an optimum temperature of 50oC60oC.Optimum operating temperature results in higher enzymatic activity requiring less dosage of enzyme. Effect of pH: It will function from a pH of 4.58.5 with an optimum of 6.5-7.5. Dosage It is added at a dosage between 125-150 g/ton (metric ton) of dry pulp. It is normally added at the hydropulper to ensure uniform mixing. As there is an inverse relationship between reaction time and enzyme dosage to obtain a maximum effectiveness, tank levels where enzymatic treatment is performed must be kept at the highest possible level. ATTENTION: Can be inactivated by raising the pH above 9.5 or temperature above 65 oC or a combination of the two. It is inactivated in the dryers at the paper machine. No residual enzymatic activity will be found in the manufactured paper. 5. Packaging Standard package size for is 20 kilogram plastic drums. Other packaging is available according to the customers requirements. 6. STORAGE: SKHZYE-TPE90 should be stored in sealed containers and under cool dry conditions. It has a loss of activity of normally less than 10% over one year. 7. TECHNICAL SERVICE: SUKAHAN (WEIFANG) BIO-TECHNOLOGY CO., LTD. Can afford technical service. We will work with you to enhance processes and solve problems

SUKAMY-TX550 Amylase Enzyme Used for Textile Destarch INTRODUCTION:Starch, a high polymeric carbohydrate is a mixture of two polysaccharide, such as amylose and amylopectin. Starch conversion enzyme can change the internal structure of starch, which will decrease the starch viscosity, thereby meeting the requirement in textile destarch. SUKAMY-TX550 is an Amylum conversion enzyme derived from the submerged fermentation of Bacillus subtilis. It is mainly used in textile destarch, especially for destarch of silk, chemical fibre and linsey-woolsey. BENEFITS: The benefits of using SUKAMY-TX550 for modifying original starch are easier operation technics and lower cost. With non-pollution, the product can save the chemical product dosage and never damage the fiber. Also, the product can be used at medium temperature which can save energy. CHRACTERISTICS: 1.SUKAMY-TX550 provides maximal benefit at pH range of 5.5 7.0, the optimum pH is 6.0-6.4 and deactivate at pH below 5.0 or high 8.0;2. The product is stable if the temperature below 60C and the optimum temperature is between 45 to 65C; the product will react quickly at the temperature of 70-85C but with deactivation quickly; The product can be used the destarch process at the temperature below 70C; Unit definition: The amount of enzyme needed to hydrolyze 1 mg of starch in one minute at pH 6.0 at the reaction temperature of 60C and the unit can be showed as u/ml. INDUSTRY STANDARD: This product follows the industry standard of PRC as QB1805.1-93. APPLICATION AND DOSAGE: As different water quality, stuff contains and textile types, the production process shall be determined by the experiment dosage as well as conditions so as to satisfy the techniques and applications of customers. For thick and heavy textile, it is advice that adds non-ionic penetrant at 0.5g/L and squeezes the water out before impregnating. Add destarch enzyme in to distributor or machine after pH adjustment. The enzyme dosage is usually 0.5-3g/L and the dosage can be reduced properly for light and thin textile; Better effectiveness can be achieved if used together with penetrant; PACKAGING: 25 kg/plastic drum Alternative packaging is available upon request for smaller or larger volumes. STORAGE : Store in a cool, dry place and away from direct sunlight. SUKAMY-TX550 maintains its activity for considerably longer time when stored at lower temperatures (below 25C). The product should not be frozen. HANDLING PRECAUTIONS: SUKAMY-TX550 is non-toxic and biodegradable. However, unnecessary contact with the product should be avoided. Long term exposure to protein based products such as SUKAMY-TX550 may sensitize certain individuals to the product. Wash hands with warm soapy water after handling. Keep out of reach of children. TECHNICAL SERVICE: Sukahan (Weifang) Bio-technology Co., Ltd can help our valued customers to use this product directly!