Germicidal activity of tar distillate obtained from pyrolysis of rice husk

The pyrolysis of rice husk yields char and gas along with a liquid condensate containing the tar fraction. This fraction contains hydrocarbons, phenolic compounds and other chemicals. The presence of phenolic compounds gives it a toxic characteristic which led to the study of its possible use as a g...

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Bibliographic Details
Published inBiological wastes Vol. 21; no. 2; pp. 93 - 100
Main Authors Guha, Rita, Das, D., Grover, P.D., Guha, B.K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1987
Subjects
antimicrobial agents
distillates
phenolic compounds
pyrolysis
rice hulls
Staphylococcus aureus
tars
India
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Summary:The pyrolysis of rice husk yields char and gas along with a liquid condensate containing the tar fraction. This fraction contains hydrocarbons, phenolic compounds and other chemicals. The presence of phenolic compounds gives it a toxic characteristic which led to the study of its possible use as a germicide. Fractional distillation of the tar yields mostly light and heavy oil fractions and a residual pitch. These former fractions, as well as the composite liquid fraction, were tested for germicidal activity by determining the phenol coefficient. All the fractions showed high germicidal activity, with the composite fraction having a phenol coefficient of 3·3.
ISSN:0269-7483
DOI:10.1016/0269-7483(87)90133-9