Sökning: "Fragrances"

Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet Fragrances.

  1. 1. Allergenic Oxidation Products from Fragrance Terpenes. Chemical Analysis and Determination of Sensitizing Potency

    Författare :Johanna Rudbäck; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Autoxidation; Contact allergy; Essential oils; Fragrances; Hydroperoxides; Ionization techniques; Mass spectrometry; Prehapten; Sensitization; Skin; Structure-activity relationships; Terpenes;

    Sammanfattning : The ubiquitous presence of fragrance compounds in consumer products has resulted in a high frequency of contact allergy to fragrances in the population. For prevention purposes and according to EU regulations, cosmetics must be labeled when containing the most prominent fragrance allergens in concentrations exceeding 0. LÄS MER

  3. 2. Contact allergy to fragrances with a focus on oak moss absolute

    Författare :Martin Mowitz; Yrkes- och miljödermatologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; contact allergy; allergic contact dermatitis; fragrance; patch test; repeated open application test;

    Sammanfattning : The exposure to fragrances is widespread and contact allergy to fragrance substances affects 1–4% of the general population. Many fragrance substances are volatile and it can therefore be suspected that they may evaporate from petrolatum patch test preparations applied in test chambers. LÄS MER

  4. 3. Contact allergy to fragrances. With a focus on hydroperoxides of linalool and hydroperoxides of limonene

    Författare :Thanisorn Sukakul; Yrkes- och miljödermatologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; contact allergy; fragrance; repeated open application test ROAT ; limonene; linalool; oxidized terpenes;

    Sammanfattning : Patch testing with fragrance allergens has been performed for over half a century, and the protocol has been continually developed and standardised. Fragrance mixes I and II and Myroxylon pereirae resin are commonly used as screening fragrance allergens in patch testing. LÄS MER

  5. 4. Heterogeneously Catalyzed Valorization of Monoterpenes to High Value-Added Chemicals

    Författare :Mikhail Golets; Jyri-Pekka Mikkola; Evgenii Rebrov; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalysis; terpenes; alpha-pinene;

    Sammanfattning : A potential industrial process is profitable only if it is successfully implemented by the continuously developing chemical industry. Throughout last decades heterogeneous catalysis has opened doors to the creation of various know-how products which previously were considered unfeasible. LÄS MER

  7. 5. Analytical methodologies for common skin allergens : Organic thioureas, isothiocyanates and fragrance hydroperoxides in everyday life products

    Författare :Ahmed Gamal Ramzi; Ulrika Nilsson; Anneli Julander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemical analysis; contact allergy; chloroprene rubber; diethyl thiourea; ethyl isothiocyanate; fragrance hydroperoxides; Analytical Chemistry; analytisk kemi;

    Sammanfattning : This thesis describes analytical methodologies for the determination of important skin-sensitizing chemicals in two types of commercial items: chloroprene rubber and fragrance products which are both well-known to be associated with contact allergy.Chloroprene rubber (neoprene) is widely used in different applications and products, such as bags, gloves, wetsuits, braces, mouse pads et c. LÄS MER