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. 2018 Mar;40(3):561-567.
doi: 10.1007/s10529-017-2503-2. Epub 2017 Dec 29.

Monoterpene biotransformation by Colletotrichum species

Adones Sales  1 , Luana Ferreira Afonso  2 , Juliana Alves Americo  3 , Mauro de Freitas Rebelo  2 , Glaucia Maria Pastore  4 , Juliano Lemos Bicas  4
Affiliations

Monoterpene biotransformation by Colletotrichum species

Adones Sales et al. Biotechnol Lett. 2018 Mar.

Abstract

Objective: To investigate the biocatalytic potential of Colletotrichum acutatum and Colletotrichum nymphaeae for monoterpene biotransformation.

Results: C. acutatum and C. nymphaeae used limonene, α-pinene, β-pinene, farnesene, citronellol, linalool, geraniol, perillyl alcohol, and carveol as sole carbon and energy sources. Both species biotransformed limonene and linalool, accumulating limonene-1,2-diol and linalool oxides, respectively. α-Pinene was only biotransformed by C. nymphaeae producing campholenic aldehyde, pinanone and verbenone. The biotransformation of limonene by C. nymphaeae yielded 3.34-4.01 g limonene-1,2-diol l-1, depending on the substrate (R-(+)-limonene, S-(-)-limonene or citrus terpene (an agro-industrial by-product). This is among the highest concentrations already reported for this product.

Conclusions: This is the first report on the biotransformation of these terpenes by Colletotrichum spp. and the biotransformation of limonene to limonene-1,2-diol possibly involves enzymes similar to those found in Grosmannia clavigera.

Keywords: Bioconversion; Bioinformatics; Colletotrichum acutatum; Colletotrichum nymphaeae; Limonene; Linalool; Orange peel oil.

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