Pectinolytic enzymes are an important tool for sustainable food production, with a wide range of applications in processing technologies as well the extraction bioactive compounds from pectin-rich raw materials. In present study, we immobilized commercial pectinase preparation onto pellet and thread shaped nylon 6/6 carriers assessed its stability reusability. Five preparations were tested diff...

Transgenic filamentous fungi of the species Aspergillus niger, A. nidulans and A. awamori expressing and secreting Erwinia carotovora (Eca) subsp. atroseptica pectate lyase 3 (PL3) were generated. Correct processing of the pre-enzyme was achieved using the A. niger pectin lyase A (PEL A) signal peptide. With the prepro-peptide of A. niger polygalacturonase II, secreted enzymes still possessed t...

background: pectinases are pectin degrading class of enzymes including polygalacturonase (pg), polymethyl galacturonase (pmg), pectate lyase (pel), and pectin esterase (pe) that are commonly used in processes involving the degradation of plant materials, such as speeding up the extraction of fruit juices.objectives: a highly methylated pectin degrading bacterium from soil covered with fruit was...

Background: Alkaline pectate lyase plays an important role in papermaking, biological refining and wastewater treatment, but its industrial applications are largely limited owing to low activity poor alkali resistance. Methods: The alkaline BspPel from Bacillus RN.1 was heterologously expressed Escherichia coli BL21 (DE3) resistance were improved by loop replacement. Simultaneously, the effect ...

Pseudomonas aeruginosa is an opportunistic pathogen that causes a variety of infections in compromised patients. The ability of Pseudomonas aeruginosa to produce chronic infection is based in part on its ability to biosynthesis of biofilm, and alginate is the major polysaccharide in the synthesized biofilm. So alginate degradation is very essential in the dispersion of Pseudomonas aeruginosa bi...

The present study characterized the ability of a bacterial cutinase to improve the wettability of raw cotton fabrics by specific hydrolysis of the cutin structure of the cuticle. The effect of cutinase was studied alone and in coreaction with pectin lyase. The changes in both the fabric and the reaction fluid were measured and compared to enzymatic hydrolysis with polygalacturonase, and to chem...

Pectin is a major component of plant cell walls, and the structure of pectin impacts on the properties of wood. Although we know that pectate lyase (PL, EC 4.2.2.2) has a major influence on the structure of pectin, our knowledge of Pectate lyase-like genes (PLL) in tree species remains limited. To better understand the characteristics of PLL genes in trees and to identify novel PLL genes that a...

The goal is to improve the flavors of Arabica coffee by combining semi-carbonic maceration (SCM) process, with enzymatic process at various lengths and temperature. Five different variations SCM processes were investigated: pulped natural (control); 15 oC for 10 days (SCM-15); 20 (SCM-20); 0.01 g.L-1 pectinases A (polygalacturonase, pectin esterase lyase) 5 (SCM-PA); 0.03 B esterase, lyase ß-gl...

BACKGROUND In the food industry, the use of pectinase preparations with high pectin esterase (PE) activity leads to the release of methanol, which is strictly regulated in food products. Herein, a pectin-degrading enzyme (PDE) complex exhibiting low PE activity of three Aspergillus sojae ATCC 20235 mutants (M3, DH56 and Guserbiot 2.230) was investigated. Production of exo-/endo-polygalacturonas...

Callus cells of rice (Oryza sativa L.) that were actively dividing in suspension culture had lost the ability to divide during the isolation process of protoplasts. Factors influencing the protoplast viability were examined using highly purified preparations of cellulase C(1), xylanase, and pectin lyase, which were essential enzymes for the isolation of protoplasts from the rice cells. The trea...