Potato cellulase

Potato pulp and potato pulp residue (after acidic treatment) and nutrient salt solution and potato protein liquor, respectively, were used for the production of cellulases and hemicellulases by Trichoderma reesei Rut C30 in a continuously operated bioreactor, (Klingspohn and Schiigerl... 

Shomer, I., Rao, M. A., Bourne, M. C., and Levy, D. 1993. Rheological behavior of potato tuber cell suspensions during temperature fluctuations and cellulase treatments. 7. Sci. Food. Agric. 63 245-250. 

For example, almost all carrot pieces were degraded into viscous reddish orange paste, and the residue consisted of cuticle, crude fibers, and other insoluble matter. Production of unicellular sweet potato was exemplified (Table IV) by using Pancellase P500 (equivalent to Cellulase onozuka P500) with or without Macerozyme (33). Sweet potato pieces... 

Table XIII. Influence of Sweet Combined Enzyme Preparations upon the Potato with Cellulase ...

With the view of elucidating the cellulolytic component responsible for the degradation of plant cell wall, Imai and Kuroda (16) investigated the breakdown of cell walls of unicellular potato with T. viride cellulase. Potato unicells prepared with Rhizopus CSE were incubated with the fraction containing filter paper degrading cellulase and CMCase, which was obtained from T. viride cellulase preparation by using a cellulose column akin to the author s gauze column method. 

Furthermore, T. viride cellulase was fractionated by Amberlite CG 50 column into filter paper degrading cellulase, CMCase, and xylanase fractions. It was conclusively shown that only filter paper degrading cellulase contributed to the degradation of cell walls of unicellular potato. 

A sesquiterpene phytoalexin, C17H26O4, Mr 294.39, oil, [ain -35.9° (CHCI3) formed, together with rish-itin and many other components (including vetispi-ranes), by potatoes Solarium tuberosum) after infection by the putrefactive bacterium Erwinia carotovora. Deacetylation furnishes phytuberol, C,5H240j, Mr 252.35, oil. P. can also be isolated from the culture medium of potato cell cultures after elicitation with Phy-tophthora infestans. Some sorts of tobacco Nicotiana tabacum) produce P. after infection with various Pseudomonas spp. or the tobacco mosaic virus pretreatment with a cellulase shows the same effect. 

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