Publicaciones

@article{BENITOGONZALEZ2021100730,

title = {Pilot plant scale-up of the production of optimized starch-based biocomposites loaded with cellulosic nanocrystals from Posidonia oceanica waste biomass},

author = {Isaac Benito-González and Gülden Göksen and Zaida Pérez-Bassart and Amparo López-Rubio and Rafael Sánchez and José María Alonso and Rafael Gavara and Miriam Gallur and Marta Martínez-Sanz},

url = {https://www.sciencedirect.com/science/article/pii/S2214289421000983},

doi = {https://doi.org/10.1016/j.fpsl.2021.100730},

issn = {2214-2894},

year  = {2021},

date = {2021-01-01},

journal = {Food Packaging and Shelf Life},

volume = {30},

pages = {100730},

abstract = {Posidonia oceanica biomass has been valorized to produce cellulosic nanocrystals with different purification degrees at lab- and pilot plant-scale. The cellulosic nanocrystals (10 % and 20 % (w/w)) were incorporated into corn starch, producing biocomposite films by melt mixing and hot-pressing at lab-scale. Biocomposite films showed remarkable improvements on the mechanical and water barrier performance (up to 10-fold increase in the elastic modulus and 2-fold decrease in the water permeability). Biocomposite packaging structures were also produced at pilot plant-scale by extrusion and thermoforming. Adjusting the plasticizer formulation and increasing the nanocrystals’ loading up to the maximum enabling good processability (10 % (w/w)) allowed the production of trays with enhanced water barrier and mechanical performance, which, unlike the pure starch, kept their shape upon storage. These results highlight the potential of P. oceanica nanocrystals to improve the performance of starch-based packaging structures and demonstrates the potential of the production process to be industrially applied.},

keywords = {Biopolymers, Cellulosic nanocrystals, Extrusion, Pilot plant, Thermoforming, Waste biomass},

pubstate = {published},

tppubtype = {article}

}

@article{BENITOGONZALEZ20201540,

title = {Valorisation of vine shoots for the development of cellulose-based biocomposite films with improved performance and bioactivity},

author = {Isaac Benito-González and Carmen M. Jaén-Cano and Amparo López-Rubio and Antonio Martínez-Abad and Marta Martínez-Sanz},

url = {https://www.sciencedirect.com/science/article/pii/S014181302034602X},

doi = {https://doi.org/10.1016/j.ijbiomac.2020.09.240},

issn = {0141-8130},

year  = {2020},

date = {2020-01-01},

journal = {International Journal of Biological Macromolecules},

volume = {165},

pages = {1540-1551},

abstract = {This work reports on the valorization of Tempranillo vine shoots for the development of bio-based packaging materials. Cellulose (F3) and nanocellulose (NANO F3) were produced by the conventional method, while less purified cellulosic fractions (F2A) and nanocrystals (NANO F2A) were extracted by simplified protocols (omitting Soxhlet and alkaline treatments) to reduce production costs and environmental impact and evaluate the potential added functionalities of these less purified materials. Although most of the hemicelluloses in F2A were digested upon acid hydrolysis, a small fraction remained in NANO F2A. On the other hand, the presence of a minor xylan fraction in F3 limited the access of sulphuric acid towards the cellulose microfibrils, hindering hydrolysis and producing heterogeneous fibrillar structures in NANO F3. The obtained materials were used to produce cellulosic films, as well as blends with agar, and their performance properties were evaluated. Overall, NANO F2A films showed the best compromise between performance and sustainability and presented additional antioxidant capacity. The properties of the films could be adjusted by the incorporation of agar, improving their ductility and water permeability.},

keywords = {Agar, Bio-based packaging, Cellulosic fractions, Vine shoots, Waste biomass},

pubstate = {published},

tppubtype = {article}

}