Pectinase production by Aspergillus niger using wastewater in solid state fermentation for eliciting plant disease resistance [An article from: Bioresource Technology]

This digital document is a journal article from Bioresource Technology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
An elicitor of plant disease resistance, pectinase, was produced by solid state fermentation with Aspergillus niger. Sugar beet pulp was used as carbon source and the wastewater from monosodium glutamate production was used as nitrogen and water source. The composition of the fermentation medium was: 11 ml concentrated wastewater (containing NH"3-N 38.2 mg/ml), sugar beet pulp 10 g, Na"2HPO"4.12H"2O 0.2 g, KH"2PO"4 0.04 g in a 500 ml Erlenmeyer flask. The fermentation temperature was 30 ^oC and the relative humidity of the air was 75-90%. The maximum production of pectinase was reached after 96 h cultivation. The crude pectinase extracted from the fermented materials could elicit disease resistance in cucumber and tomato seedlings.