Open AccessTrichoderma harzianum cerato‐platanin enhances hydrolysis of lignocellulosic materials
Author(s) -
Pennacchio Anna,
Pitocchi Rossana,
Varese Giovanna Cristina,
Giardina Paola,
Piscitelli Alessandra
Publication year - 2021
Publication title -
microbial biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.287
H-Index - 74
ISSN - 1751-7915
DOI - 10.1111/1751-7915.13836
Subject(s) - laccase , trichoderma harzianum , sugar , cellulose , pulp and paper industry , food science , rendering (computer graphics) , chemistry , cellulase , hydrolysis , lignin , lignocellulosic biomass , trichoderma , pomace , reducing sugar , microbiology and biotechnology , fermentation , botany , biology , biochemistry , organic chemistry , enzyme , computer science , engineering , computer graphics (images) , biological pest control
Summary 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 Th CP 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.