Basic Member

Get a free quote or proposal for

Prebleaching Agent

DESCRIPTION:

INTRODUCTION 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. 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%. PRODUCT DESCRIPTION: AU-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-ß-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 50? over a 20 minute period. AU-PE89 xylanase is effective over the pH range 6 to 10 and temperature range 35 to 65? AU-PE89 is a light yellow powder with a density of 1.1 g/mL. It is readily miscible with water. BENEFITS OF AU-PE89: Reduce Organochlorines in Wastewater: For mills using active chlorine as a bleaching chemical, AU-PE89 can eliminate.

COMMERCIAL DETAILS:

FOB Price * Not Mentioned
Payment Terms L/C

MORE DETAILS:

Sample Offered? Yes
Sample Terms Supplier sends free sample and buyer pays the shipping fee.
* Prices are subject to change. Please contact the supplier for the latest price.
Swanson Chu

Basic Member

Swanson Chu

Manager, SUKAHAN (Weifang) Bio-technology Co., Ltd.

Member Since: Jul 2011

When you contact Swanson Chu, tell them you found their company details at PaperIndex.

Location

Address Line1 Wolong street
City Weifang
Postal Code 261000
State Shandong
Country China (Mainland)
Region East Asia

Office Schedule

Working Days Monday to Friday
Working Hours 8 AM to 5 PM
  • This profile was recently viewed by visitors from United States, Kenya, China, United Arab Emirates, Russia.

Product Listings
by SUKAHAN (Weifang) Bio-technology Co., Ltd.

Similar Products from Companies in Rest of China (Mainland)

Image

Thiourea Dioxide

Product name: Thiourea Dioxide Appearance: White crystal powder Specification: Purity 99.0%min Thiourea 0.1%max Moisture 0.05%max Sulfates ...


Similar Products from Suppliers in Other Countries

Image

Pulp Bleaching Agent

Dear Sir, One of the most commonly used chemical for the paper industry is a Bleaching Agent Called Sodium Hydro Sulfite. We are offering you a highly concentrated bleaching agent Pulp Bleaching...


Image

chlorine dioxide

we offer chlorine dioxide solution of 0.5% to 5.00% chlorine dioxide is make in by adding chemicals without chlorinedioxide generator. chlorine dioxide is make by two compound A.& B. are mix with...


Image

Chlorine Dioxide

chlorine dioxide is bleaching paper bleaching, CLO2 , INCREASE BLEACHING BY 20% THEN HYDROGEN PEROXIDE, CHLORINE GAS, SODIUM HYPOCHLORITE


Find More Products in These Categories

More Product Listings

Looking for Buyers Instead?

No Time To Contact Suppliers?

It's Free!

Go to Top