Sökning: "delignification"

Visar resultat 1 - 5 av 17 uppsatser innehållade ordet delignification.

  1. 1. Analys av transparent trä tillverkat genom delignifiering och PMMA-infiltration

    Kandidat-uppsats, KTH/Kemiteknik

    Författare :Hannah Rosell; Tove Tisell Mikkelsen; Nadiya Wattar; Selma Kadric; [2023]
    Nyckelord :Transparent wood; fiber technology; polymer infiltration; delignification; wood chemistry;

    Sammanfattning : Rapporten presenterar en studie där tre trätyper, balsa, ask och björk, fabriceras genom en förutbestämd metod till transparent trä. Detta material har många möjliga applikationer, inklusive energieffektiva byggnader, förpackningar, solceller och elektroniska apparater. LÄS MER

  3. 2. Production, Purification, and Characterization of wood substrates and Galactose oxidase enzyme

    Master-uppsats, KTH/Industriell bioteknologi

    Författare :Rakhesh Pongalikonnar Ranganathan; [2023]
    Nyckelord :Peracetic acid treatment; Galactose oxidase; Pichia pastoris; Biomass recalcitrance; Enzymatic upgrading; Perättiksyrabehandling; Galaktosoxidas; Pichia pastoris; Motsträvighet i biomassa; Enzymatisk uppgradering;

    Sammanfattning : Trä är den bästa förnyelsebara källan för att producera många produkter på grund av dess biokompatibla och biologiskt nedbrytbara natur. Träets biomassa har en motstridig natur mot enzymatisk uppgradering. LÄS MER

  4. 3. Exploration of ways to utilize wheat chaff through fungal substrate conversion : a base for animal feed or substrate for cultivation of edible mushrooms

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Caroline Sandberg; [2022]
    Nyckelord :harvest residues; chaff; oyster mushroom; agro-waste reduction; mushroom production;

    Sammanfattning : The shift towards a more sustainable food system emphasises a need for increased circularity and valorisation of available resources. Chaff constitutes one of three main fractions obtained upon harvest of certain crops, during which it is generally discarded on the field. LÄS MER

  5. 4. Ultrasound pre-treatment of wheat bran to improve arabinoxylan extraction

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Louise Lundquist; [2022]
    Nyckelord :Ultrasound; Arabinoxylan; wheat bran; alkaline extraction;

    Sammanfattning : With increasing amounts of food waste and diet related diseases, the need to utilize our by-products of food for its health benefits and to limit the food waste has never been more prevalent. Wheat bran is a by-product from the wheat flour industry and contains a lot of dietary fibres which has a beneficial effect on human health. LÄS MER

  7. 5. Spruce bark biorefinery

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Leon Ahlström; Rebecca Mattsson; Hampus Eurén; Alicia Lidén; [2021]
    Nyckelord :Norway spruce bark; bark biorefinery; extractives; cellulose; lignin; non-cellulose; polysaccharides; soxhlet extraction; hot-water extraction; organosolv extraction; PAA; delignification; carbohydrate analysis; 2D HSQC-NMR and FTIR; Granbark; bark bioraffinaderi; lignin; organosolv extraktion; hot-water extraktion;

    Sammanfattning : Spruce Bark contains several fundamental main substances; lignin, non-cellulose polysaccharides, cellulose and extractives. This undergraduate study focuses on developing a process to extract each of these components from spruce bark using a biorefinery concept, with a main focus on extracting lignin without degradation. LÄS MER