Trichoderma harzianum cerato-platanin enhances hydrolysis of lignocellulosic materials.

Microbial Biotechnology
Anna PennacchioAlessandra Piscitelli

Abstract

Considering its worldwide abundance, cellulose can be a suitable candidate to replace the fossil oil-based materials, even if its potential is still untapped, due to some scientific and technical gaps. This work offers new possibilities demonstrating for the first time the ability of a cerato-platanin, a small fungal protein, to valorize lignocellulosic Agri-food Wastes. Indeed, cerato-platanins can loosen cellulose rendering it more accessible to hydrolytic attack. The cerato-platanin ThCP from a marine strain of Trichoderma harzianum, characterized as an efficient biosurfactant protein, has proven able to efficiently pre-treat apple pomace, obtaining a sugar conversion yield of 65%. Moreover, when used in combination with a laccase enzyme, a notable increase in the sugar conversion yield was measured. Similar results were also obtained when other wastes, coffee silverskin and potato peel, were pre-treated. With respect to the widespread laccase pre-treatments, this new pre-treatment approach minimizes process time, increasing energy efficiency.

References

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Aug 2, 2013·Molecular Plant-microbe Interactions : MPMI·Mario R de O BarsottiniAndre L B Ambrosio
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Sep 22, 2017·Applied Microbiology and Biotechnology·María Hijosa-ValseroRebeca Díez-Antolínez
Jun 9, 2018·Bioresource Technology·Simona GiacobbeAlessandra Piscitelli
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Apr 25, 2020·International Journal of Molecular Sciences·Rossana PitocchiPaola Giardina
Mar 20, 2021·International Journal of Biological Macromolecules·S LutiL Pazzagli

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