Separation and utilization of pectin lyase from commercial pectic enzyme via highly methoxylated cross-linked alcohol-insoluble solid chromatography for wine methanol reduction.
The isolation and utilization of pectin lyase (PL) from commercial pectic enzyme for methanol reduction in wine production was investigated. PL can be separated from pectinesterase (PE) and polygalacturonase (PG) on HM-CL-AIS affinity chromatography at pH 4; however, it is difficult to further distinguish PE from PG. Some desirable physicochemical properties such as transmittance, lightness, redness, and lower total pectin content are found in the external enzyme adding groups (PL, PE and PG, and pectic enzyme groups) in comparison to the control group. Methanol contents in pectic enzyme and the PE and PG groups increase from 628 +/- 13 (control group) to 3103 +/- 16 and 1736 +/- 67 mg/L ethanol in the final products, respectively. Nevertheless, the adding of PL does not cause any increase in methanol content. The results present in this study suggest that the HM-CL-AIS column is a simple, inexpensive, convenient, and effective method for PL purification. Moreover, the partial purified PL is a potential replacement of commercial pectic enzyme for pectin depolymerizing, methanol content reducing, and wine quality improving in wine production.
Wu
Ming-Chang
MC
Department of Food Science, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
Jiang
Chii-Ming
CM
Huang
Ping-Hsiu
PH
Wu
Mei-Yi
MY
Wang
Yuh Tai
YT
D002265:Carboxylic Ester Hydrolases / Q000302:isolation & purification; D002846:Chromatography, Affinity / Q000379:methods*; D000431:Ethanol / Q000032:analysis; D000432:Methanol / Q000032:analysis / Q000378:metabolism*; D011096:Polygalacturonase / Q000302:isolation & purification; D011133:Polysaccharide-Lyases / Q000302:isolation & purification* / Q000378:metabolism*; D012995:Solubility; D014920:Wine / Q000032:analysis*
D000431:Ethanol; D002265:Carboxylic Ester Hydrolases; C022323:pectinesterase; D011096:Polygalacturonase; D011133:Polysaccharide-Lyases; C027349:pectin lyase; D000432:Methanol