Biotransformation of citronellol in rose-oxide using cassava wastewater as a medium

The use of liquid cassava waste (manipueira) as the medium for the biotransformation of citronellol using a Penicillium sp strain was studied. The strain was able to grow in the waste and production of cellular mass reaching 25 g/L over three days of contact of the spores with the medium. Submerged...

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Bibliographic Details
Published in:Ciência e tecnologia de alimentos 2006-09, Vol.26 (3), p.690-696
Main Authors: Maróstica Jr., Mário Roberto(UNICAMP FEA Department of Food Science), Pastore, Gláucia Maria(UNICAMP FEA Department of Food Science)
Format: Article
Language:English
Subjects:
biotransformation
biotransformação
citronellol
citronelol
FOOD SCIENCE & TECHNOLOGY
manipueira
Penicillium sp
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Summary:The use of liquid cassava waste (manipueira) as the medium for the biotransformation of citronellol using a Penicillium sp strain was studied. The strain was able to grow in the waste and production of cellular mass reaching 25 g/L over three days of contact of the spores with the medium. Submerged cultures of Penicillium sp grown in manipueira were able to convert the substrate into cis- and trans-rose oxides when the cells were transferred into a mineral medium for the biotransformation experiments. The production of rose oxide increased by more than 2.4 times using this 2 media process as compared to processes using only a manipueira medium (cassava medium). Auto-oxidation products were not detected in the control experiments. A utilização de resíduo líquido do processamento de mandioca (manipueira) como meio de cultura para a biotransformação de citronelol por uma linhagem de Penicillum sp foi estudada. A linhagem foi capaz de se desenvolver na presença do resíduo atingindo produção de massa celular da ordem de 25 g/L durante três dias de contato dos esporos com o meio. Culturas submersas de Penicillium sp desenvolvidas em manipueira foram capazes de converter o substrato a cis- e trans-óxidos de rosa quando as células foram transferidas a um meio mineral. Pôde-se observar que a produção de óxido de rosa sofreu um aumento maior que 2,4 vezes através desse processo em comparação à utilização apenas do meio de manipueira (meio de mandioca). Produtos de auto-oxidação não foram identificados nos experimentos controle.
ISSN:0101-2061
1678-457X
1678-457X
DOI:10.1590/s0101-20612006000300032