Physicochemical Characterization of Vitis vinifera Pruning Shots from Mendoza, Argentina: Extraction of Lignocellulosic Products

GIAROLI, MARÍA CAROLINA; PÉREZ, CLAUDIO JAVIER; VEGA, GUSTAVO ALBERTO; CIOLINO, ANDRÉS EDUARDO; NINAGO, MARIO DANIEL

STARCH/STARKE

WILEY-V C H VERLAG GMBH

Año: 2024

0038-9056

For the first time, a complete physicochemical characterization of pruningresidues from red grape varieties Cabernet Sauvignon (CSPR) and Malbec(MPR) from Mendoza, Argentina is reported. In addition, the extraction oflignocellulosic material by using an environmentally friendly methodology isreported, yielding 13.33 wt% for CSPR and 8.08 wt% for MPR. According tolaser diffraction analysis (LD), the particle-size distribution is similar for bothvarieties. Fourier transform-infrared spectroscopy (FTIR), differential scanningcalorimetry (DSC), thermogravimetric analysis (TGA), scanning-electronmicroscopy (SEM), optical microscopy (OM), and X-rays diffraction (XRD)show the presence of lignin and cellulose in both samples. It may beconcluded that vine shoots are an inexpensive and widely available source toobtain lignin and cellulose for multiple purposes, such as composites andblends.