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  • 11
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Rate of browning in Red Delicious and Granny Smith apple juice concentrates during storage was investigated. Color development at 65°, 70° and 75°Brix and storage temperatures of 5°, 20° and 37°C were compared over 120 days. Color deterioration occured at a faster rate in Red Delicious. Reaction at different concentration and storage conditions was exponential, following an Arrhenius-type dependence with temperature. Activation energy for a solids content of 65 - 75°Brix ranged from 16.4 - 19.3 Kcal/mole. Influence of juice variety on activation energy was negligible. Water activity results are in general agreement with those reported by other investigators. A satisfactory correlation to predict commercial concentrate browning has been obtained. All other things being equal, thermal history is a critical factor to obtain a lighter color concentrate.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Highly concentrated clarified apple juice was kept in storage at 37°C over a period of 100 days. The soluble solids content ranged from 65–90.5°Brix. Color development was monitored as O.D. at 420 nm. A maximum nonenzymatic browning rate (NEBr) was found to occur between water activities 0.53 and 0.55. It was assumed that (1) dilution of reactants was responsible for the browning rate reduction at high water contents white (2) viscosity inhibited the color formation at low water activities. Viscosity ranged from 48 to 1.3 × 106 cp and increased sharply when the commercial levels of concentration (70–72°Brix) were exceeded.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Copenhagen : Munksgaard International Publishers
    Contact dermatitis 45 (2001), S. 0 
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 38 (1998), S. 0 
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 11 (1984), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 15 (1988), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A ease of porokeratotic eccrine ostial and dermal duel nevus (PEODDN) affecting all 4 extremities is described. Clinically, palmo-plantar lesions resembled those of nevus comedonicus and the remaining lesions those of linear verrucous epidermal nevus. Histologically, all lesions were identical with cornoid lamellae in the eccrine ostia and epidermal ducts.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 15 (1988), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A case of perforating pilomatricoma is described. A few published cases have shared the following features: rapid development, reddish exophytic clinical appearance with surface alterations suggestive of perforation, relatively shallow location making contact with the epidermis, and the occurrence of transepithelial elimination phenomena.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Blackwell Science Ltd/Inc.
    Contact dermatitis 50 (2004), S. 0 
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Psoriasis prevalence in the Spanish population is around 1.4%(2000). The last epidemiological enquire of the GEIDC (2001) showed that 55.11% of the patients revised in specialized units presented Allergic Contact Dermatitis (ACD). Concomitance of both processes has been widely studied being the opinions of the different authors controversial. Palmo-plantar psoriasis seems to be the most frequent type in patients presenting delayed hypersensitivity.Aim and methods:  A retrospective study (2002–2003) of the incidence of ACD in patients previously diagnosed of psoriasis was performed in the allergy unit of our hospital. The aim of our study was to investigate the delayed hypersensitivity among psoriatic patients as well as its clinical relevance in our influence area. 604 consecutive patients were studied. Standard batteries of the GEIDC as well as complementary series (True-Test and Chemotecnique) were performed. Allergen application and posterior evaluation were done according to the ICDRG rules.Results:  We studied 26 patients affected of Psoriasis, (4,3% of total). In contrast to the general population, 9 were female (mean age 49 years) and 17 male (mean age 48,4 years). ACD suggestive lesions were located in the hands of 15 patients, feet in three of them and in 4 patients both. Patch test was negative in 8 cases. The most detected allergens were Nickel and Fragrance-mix. Occupational origin was discussed in 6 cases. Sensitivity to formaldehyde resins was demonstrated in several patients. Medicamentous origin due to ethylendiamine and Peru Balsam was also demonstrated.Comments:  Several revisions about the relationship of ACD and psoriasis have been published in the last years and most of the authors think that there are no differences between healthy, psoriatic and atopic subjects. These studies have focused on adverse drug reactions or standard series of allergens, taking not in consideration an occupational origin. We suggest epicutaneous tests as a reliable method to diagnose ACD in psoriatic patients with chronic and/or refractory lesions in hands.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Contact dermatitis 47 (2002), S. 0 
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 14 (1987), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We report a case of tubular apocrine adenoma located on the scalp, with characteristics of syringocystadenoma papilliferum in the superior part of the lesion. An interesting feature of the growth is its connective tissue involvement.
    Type of Medium: Electronic Resource
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