sodium-dodecyl-sulfate and malic-acid

sodium-dodecyl-sulfate has been researched along with malic-acid* in 4 studies

Trials

2 trial(s) available for sodium-dodecyl-sulfate and malic-acid

ArticleYear
Fruit acids do not enhance sodium lauryl sulphate-induced cumulative irritant contact dermatitis in vivo.
    Acta dermato-venereologica, 2005, Volume: 85, Issue:3

    Combined exposure to different irritants in the workplace may lead to irritant contact dermatitis, which is the main type of occupational dermatitis among bakers and confectioners. Following previous work on "tandem irritation", a panel of healthy volunteers was exposed twice daily for 4 days to the organic fruit acids: citric, malic, and lactic acid, either alone or in tandem application with 0.5% sodium lauryl sulphate (SLS) in a repetitive irritation test. Irritant cutaneous reactions were quantified by visual scoring and non-invasive measurement of transepidermal water loss and skin colour reflectance. Twice daily application of either citric or malic acid alone did not induce a significant irritant reaction. Combined exposure to one of the fruit acids and SLS caused marked barrier disturbance, but the latter irritant effect was smaller than that obtained by combined exposure to SLS and water. Thus, combined exposure to the above-mentioned fruit acids and SLS did not enhance cumulative skin irritation.

    Topics: Adult; Citric Acid; Citrus; Dermatitis, Allergic Contact; Dermatitis, Occupational; Drug Interactions; Female; Food Industry; Fruit; Humans; Irritants; Lactic Acid; Malates; Male; Predictive Value of Tests; Single-Blind Method; Skin Tests; Sodium Dodecyl Sulfate; Water Loss, Insensible

2005
Efficacy of virucidal nasal tissues in interrupting familial transmission of respiratory agents. A field trial in Tecumseh, Michigan.
    American journal of epidemiology, 1988, Volume: 128, Issue:3

    A randomized field trial was conducted in Tecumseh, Michigan, to test the efficacy of virucidal nasal tissues in interrupting transmission of respiratory agents in the household. In the double-blinded trial, 296 households were stratified by household size and randomly assigned to the group using treated tissues and the group using placebo tissues. Households were recruited in late August to early September 1984, and the tissues were distributed in November 1984. A 10-week influenza A(H3N2) period was identified from January 13 to March 23, 1985, although there was also evidence of rhinovirus circulation during that period. A household-level infection transmission model was used to assess the effectiveness of the virucidal tissue in the household. The model was used to estimate the secondary attack rate for the placebo and treated tissue households during the influenza A(H3N2) period. The efficacy of the treated tissue in interrupting secondary transmission was found to vary from 30.1% to 36.9%, although it could be as high as 39.4% when historical comparisons are used. However, these differences were not statistically significant. In general, the use of virucidal nasal tissue in the household appears to result in the partial interruption of transmission of influenzavirus from an infected household member to another household member during an influenza epidemic.

    Topics: Adult; Antisepsis; Antiviral Agents; Citrates; Citric Acid; Disease Outbreaks; Double-Blind Method; Humans; Influenza A virus; Influenza, Human; Malates; Michigan; Paper; Picornaviridae Infections; Random Allocation; Sodium Dodecyl Sulfate

1988

Other Studies

2 other study(ies) available for sodium-dodecyl-sulfate and malic-acid

ArticleYear
E. coli o157:H7 population reduction from alfalfa seeds with malic acid and thiamine dilauryl sulfate and quality evaluation of the resulting sprouts.
    Journal of food science, 2012, Volume: 77, Issue:2

    It has been reported that washing seeds with a 20000 ppm Ca(OCl)(2) solution as recommended by the U.S. Food and Drug Administration is unable to eliminate E. coli cells attached to seed surfaces, and the bacterial cells that have survived a sanitation wash can proliferate during sprouting to a high population. The objectives of this research were to examine the efficacy of malic acid (MA) and thiamine dilauryl sulfate (TDS) combined treatments on the inactivation of E. coli O157:H7 on alfalfa seeds, to study the growth of the remaining E. coli cells during sprouting, and to evaluate the sprout quality. When 10 g of inoculated alfalfa seeds were washed in a 10% MA-1% TDS solution, a complete elimination of E. coli was achieved. The same result was observed by washing the seeds in a 20000 ppm Ca(OCl)(2) solution. However, when the seed size was increased to 50 g while maintaining the same seed-to-sanitizer ratio, both the MA + TDS and the 20000 ppm chlorine washes failed to completely inactivate the E. coli cells on the seeds. Nevertheless, the 10% MA-1% TDS solution was significantly more effective in E. coli count reduction compared to the 20000 ppm chlorine wash. The E. coli O157:H7 cells remaining on the seeds after treatments with both sanitizers grew up to 7 to 8 log CFU/g sprout after 96 h of sprouting. Under the treatment conditions used in this study, none of the treatments resulted in significant differences in germination rate, yield, or quality of the sprouts.. The malic acid (MA) and thiamine dilauryl sulfate (TDS) combined treatment may provide a new solution to secure the microbial safety of seeds and sprouts. An important finding of this study is that seed sample size has a significant impact on the inactivation of E. coli O157:H7 on alfalfa seeds. The microbial inactivation results obtained in a laboratory set-up cannot be directly applied to a large scale operation. A validation test on the large scale has to be performed to evaluate the efficacy of the sanitizer.

    Topics: Consumer Product Safety; Disinfectants; Escherichia coli O157; Food Contamination; Food Handling; Food Microbiology; Germination; Malates; Medicago sativa; Seeds; Sodium Dodecyl Sulfate; Thiamine

2012
Interruption of transmission of rhinovirus colds among human volunteers using virucidal paper handkerchiefs.
    The Journal of infectious diseases, 1986, Volume: 153, Issue:2

    Topics: Adult; Antiviral Agents; Citrates; Citric Acid; Common Cold; Hand; Humans; Malates; Male; Paper; Rhinovirus; Sodium Dodecyl Sulfate

1986
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