Essays about: "xylan"

Showing result 1 - 5 of 19 essays containing the word xylan.

1. 1. Impact of pre-treatments on the brightness stability of a conventional and near neutral pH ECF-light bleaching sequence

   University essay from KTH/Fiber- och polymerteknologi

   Author : Ali Amirjani; [2023]
   Keywords : ECF; Bleaching; Pulp; AOX; Brightness Stability; ECF; Blekning; Massa; AOX; Ljushetsstabilitet;

   Abstract : Syftet med denna studie är att undersöka inverkan av förbehandlingar på ljushetsstabiliteten av Northern Bleached Softwood Kraft (NBSK) som har blekts enligt (OO) (OP) D/Dn (PO) bleksekvensen. Effekten av förbehandling med xylanas (X), mild sur (A), DTPA (Q) samt ett kombinerad DTPA- & xylanassteg (Q+X) har studerats. READ MORE

3. 2. Analysis and Valorization of Bark from Silver Birch, Scots Pine, and Norway Spruce : Compositional analysis of bark from common Swedish trees in forestry, to optimize sustainability procedures and monetary value of bark residue

   University essay from Umeå universitet/Kemiska institutionen

   Author : Isak Lindbäck; [2022]
   Keywords : ;

   Abstract : Silver birch, Scots pine, and Norway spruce are the three most common types of trees in Sweden and make up to 90% of standing volume in Swedish forests (Skogsstyrelsen 2015, 3). With millions of cubic meters of wood being cut down annually, bark and other residues that cannot be used for sawn timber is left over and burnt for energy. READ MORE

4. 3. Solubility of Wood Xylans, Effect of pH and Concentration

   University essay from KTH/Glykovetenskap

   Author : James Carlsson; [2022]
   Keywords : Xylan; Wood; Solubility; Dynamic Light Scattering; Filtration; Xylan; Trä; Löslighet; Dynamisk ljusspridning; Filtrering;

   Abstract : Lösligheten av xylaner utvunna från trä undersöktes med Dynamisk Ljusspridning i syfte att observera eventuella förändringar i hydrodynamisk volym och ζ-potential. Xylaner extraherade från bok, björk och gran användes, där alkalisk extraherad bok erhölls kommersiellt och prover från björk och gran extraherades i förhand med subkritiskt vatten och alkalisk extraktion. READ MORE

5. 4. Exploring Deep Eutectic Solvent Pretreatment and Laccase Biobleaching on Oat Hulls in Efforts to Overcome Recalcitrance

   University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

   Author : Juanita Francis; [2019]
   Keywords : Biotechnology; Bioteknik; Technology and Engineering;

   Abstract : Oat production produces an abundant side stream product called oat hulls, formally regarded as a waste product. These oat hulls are nutritionally packed, containing insoluble dietary fibres. The solubilization and subsequent enzymatic hydrolysis of insoluble fibres, i.e. READ MORE

6. 5. Preparation and evaluation of arabinoxylan based prebiotics

   University essay from Lunds universitet/Bioteknik (master)

   Author : Mohammad Abu Mursalin Sajib; [2018]
   Keywords : Arabinoxylan; Probiotics; Prebiotics; Food; Xylanase; Brewer s spent grain; Biotechnology; Bioteknik; Technology and Engineering;

   Abstract : Prebiotics are non-digestible carbohydrates that selectively stimulate the growth and activity of health promoting bacteria in the colon, resulting in homeostasis to the gut environment. It is considered to be the solution of many health-related diseases such as type-2 diabetes, cardiovascular disease and cancer. READ MORE