Title: Acetone powder from dormant seeds of Ricinus communis L.
Authors: Elisa Cavalcanti; FÃ¡bio Maciel; Pierre Villeneuve; Regina Lago; Olga Machado; Denise Freire
Abstract: AbstractÂ Â The influence of several factors on the hydrolytic activity of lipase, present in the acetone powder from dormant castor seeds (Ricinus communis) was evaluated. The enzyme showed a marked specificity for short-chain substrates. The best reaction conditions were an acid medium, Triton X-100 as the emulsifying agent and a temperature of 30ï¿½C. The lipase activity of the acetone powder of different castor oil genotypes showed great variability and storage stability of up to 90%. The toxicology analysis of the acetone powder from genotype Nordestina BRS 149 showed a higher ricin (toxic component) content, a lower 2S albumin (allergenic compound) content, and similar allergenic potential compared with untreated seeds.
Subjects: ACETONE; CASTOR oil; TOXICOLOGY; ALBUMINS
Publication: Applied Biochemistry & Biotechnology, 2007, Vol 137, Issue 1-12, p57
ISSN: 0273-2289
Publication type: Academic Journal
DOI: 10.1007/s12010-007-9039-1

Acetone powder from dormant seeds of Ricinus communis L.

Elisa Cavalcanti; FÃ¡bio Maciel; Pierre Villeneuve; Regina Lago; Olga Machado; Denise Freire