New strategies to bleach dissolving pulps using enzymatic treatments
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A biobleaching sequence was applied to sulphite pulp in order to explore new bleaching possibilities using enzymatic treatments. Therefore, the well-known laccase-mediator system was used with the aim to achieve dissolving pulp characteristics. The enzymatic sequence was compared with a conventional hydrogen peroxide treatment in order to elucidate the effect of a laccase stage (L) for a potential industrial application. The treated pulps showed satisfactory results: high cellulose reactivity, high brightness and low content of hemicelluloses
CitacióQuintana, E. [et al.]. New strategies to bleach dissolving pulps using enzymatic treatments. A: International Pulp Bleaching Conference. "IPBC 2014 Grenoble: International Pulp Bleaching Conference: Grenoble, October 29-31, 2014: proceedings". Grenoble: 2014, p. 163-169.