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Laura Sisti
Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131, Bologna, Italy

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Review
Published: 19 June 2021 in Sustainability
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In recent years, the circular economy and sustainability have gained attention in the food industry aimed at recycling food industrial waste and residues. For example, several plant-based materials are nowadays used in packaging and biofuel production. Among them, by-products and waste from coffee processing constitute a largely available, low cost, good quality resource. Coffee production includes many steps, in which by-products are generated including coffee pulp, coffee husks, silver skin and spent coffee. This review aims to analyze the reasons why coffee waste can be considered as a valuable source in recycling strategies for the sustainable production of bio-based chemicals, materials and fuels. It addresses the most recent advances in monomer, polymer and plastic filler productions and applications based on the development of viable biorefinery technologies. The exploration of strategies to unlock the potential of this biomass for fuel productions is also revised. Coffee by-products valorization is a clear example of waste biorefinery. Future applications in areas such as biomedicine, food packaging and material technology should be taken into consideration. However, further efforts in techno-economic analysis and the assessment of the feasibility of valorization processes on an industrial scale are needed.

ACS Style

Laura Sisti; Annamaria Celli; Grazia Totaro; Patrizia Cinelli; Francesca Signori; Andrea Lazzeri; Maria Bikaki; Philippe Corvini; Maura Ferri; Annalisa Tassoni; Luciano Navarini. Monomers, Materials and Energy from Coffee By-Products: A Review. Sustainability 2021, 13, 6921 .

AMA Style

Laura Sisti, Annamaria Celli, Grazia Totaro, Patrizia Cinelli, Francesca Signori, Andrea Lazzeri, Maria Bikaki, Philippe Corvini, Maura Ferri, Annalisa Tassoni, Luciano Navarini. Monomers, Materials and Energy from Coffee By-Products: A Review. Sustainability. 2021; 13 (12):6921.

Chicago/Turabian Style

Laura Sisti; Annamaria Celli; Grazia Totaro; Patrizia Cinelli; Francesca Signori; Andrea Lazzeri; Maria Bikaki; Philippe Corvini; Maura Ferri; Annalisa Tassoni; Luciano Navarini. 2021. "Monomers, Materials and Energy from Coffee By-Products: A Review." Sustainability 13, no. 12: 6921.

Journal article
Published: 17 June 2021 in Industrial Crops and Products
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When considered by a biorefinery approach, an agroindustrial byproduct such as wheat bran can find a new standing in the field of fabrication of mycelium-based materials. The present work reports on a systematic study on the effect of wheat bran as an upgrading feedstock for the growth and development of fully biobased and biodegradable composites. Two families of materials based on bran/cotton and bran/hemp mixtures were fabricated on an industrial scale. The natural materials thus obtained were fully characterized and their end-life was assessed in composting conditions. The research focusses on two main aspects: the nutritional contribution of bran for the fungal growth and its effect on the mechanical properties as a filler in the final composites. It must be noted that the valorization and exploitation of a byproduct such as bran can have a considerable impact on the industrial production of mycelium-based composite materials, by reducing the time of production while increasing their mechanical performances.

ACS Style

Laura Sisti; Claudio Gioia; Grazia Totaro; Steven Verstichel; Marco Cartabia; Serena Camere; Annamaria Celli. Valorization of wheat bran agro-industrial byproduct as an upgrading filler for mycelium-based composite materials. Industrial Crops and Products 2021, 170, 113742 .

AMA Style

Laura Sisti, Claudio Gioia, Grazia Totaro, Steven Verstichel, Marco Cartabia, Serena Camere, Annamaria Celli. Valorization of wheat bran agro-industrial byproduct as an upgrading filler for mycelium-based composite materials. Industrial Crops and Products. 2021; 170 ():113742.

Chicago/Turabian Style

Laura Sisti; Claudio Gioia; Grazia Totaro; Steven Verstichel; Marco Cartabia; Serena Camere; Annamaria Celli. 2021. "Valorization of wheat bran agro-industrial byproduct as an upgrading filler for mycelium-based composite materials." Industrial Crops and Products 170, no. : 113742.

Journal article
Published: 23 April 2021 in Polymers
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In situ intercalative polymerization has been investigated as a strategic way to obtain poly(propylene 2,5-furandicarboxylate) (PPF) and poly(hexamethylene 2,5-furandicarboxylate) (PHF) nanocomposites with different graphene types and amounts. Graphene (G) has been dispersed in surfactant stabilized water suspensions. The loading range in composites was 0.25–0.75 wt %. For the highest composition, a different type of graphene (XT500) dispersed in 1,3 propanediol, containing a 6% of oxidized graphene and without surfactant has been also tested. The results showed that the amorphous PPF is able to crystallize during heating scan in DSC and graphene seems to affect such capability: G hinders the polymer chains in reaching an ordered state, showing even more depressed cold crystallization and melting. On the contrary, such hindering effect is absent with XT500, which rather induces the opposite. Concerning the thermal stability, no improvement has been induced by graphene, even if the onset degradation temperatures remain high for all the materials. A moderate enhancement in mechanical properties is observed in PPF composite with XT500, and especially in PHF composite, where a significative increase of 10–20% in storage modulus E’ is maintained in almost all the temperature range. Such an increase is also reflected in a slightly higher heat distortion temperature. These preliminary results can be useful in order to further address the field of application of furan-based polyesters; in particular, they could be promising as packaging materials.

ACS Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Loris Giorgini; Simone Ligi; Micaela Vannini. Bio-Based Furan-Polyesters/Graphene Nanocomposites Prepared by In Situ Polymerization. Polymers 2021, 13, 1377 .

AMA Style

Laura Sisti, Grazia Totaro, Annamaria Celli, Loris Giorgini, Simone Ligi, Micaela Vannini. Bio-Based Furan-Polyesters/Graphene Nanocomposites Prepared by In Situ Polymerization. Polymers. 2021; 13 (9):1377.

Chicago/Turabian Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Loris Giorgini; Simone Ligi; Micaela Vannini. 2021. "Bio-Based Furan-Polyesters/Graphene Nanocomposites Prepared by In Situ Polymerization." Polymers 13, no. 9: 1377.

Journal article
Published: 27 March 2021 in Polymers
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With the aim to fully exploit the by-products obtained after the industrial extraction of starch from sweet potatoes, a cascading approach was developed to extract high-value molecules, such as proteins and pectins, and to valorize the solid fraction, rich in starch and fibrous components. This fraction was used to prepare new biocomposites designed for food packaging applications. The sweet potato residue was added to poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in various amounts up to 40 wt % by melt mixing, without any previous treatment. The composites are semicrystalline materials, characterized by thermal stability up to 260 °C. For the composites containing up to 10 wt % of residue, the tensile strength remains over 30 MPa and the strain stays over 3.2%. A homogeneous dispersion of the sweet potato waste into the bio-polymeric matrix was achieved but, despite the presence of hydrogen bond interactions between the components, a poor interfacial adhesion was detected. Considering the significant percentage of sweet potato waste used, the biocomposites obtained show a low economic and environmental impact, resulting in an interesting bio-alternative to the materials commonly used in the packaging industry. Thus, according to the principles of a circular economy, the preparation of the biocomposites closes the loop of the complete valorization of sweet potato products and by-products.

ACS Style

Micaela Vannini; Paola Marchese; Laura Sisti; Andrea Saccani; Taihua Mu; Hongnan Sun; Annamaria Celli. Integrated Efforts for the Valorization of Sweet Potato By-Products within a Circular Economy Concept: Biocomposites for Packaging Applications Close the Loop. Polymers 2021, 13, 1048 .

AMA Style

Micaela Vannini, Paola Marchese, Laura Sisti, Andrea Saccani, Taihua Mu, Hongnan Sun, Annamaria Celli. Integrated Efforts for the Valorization of Sweet Potato By-Products within a Circular Economy Concept: Biocomposites for Packaging Applications Close the Loop. Polymers. 2021; 13 (7):1048.

Chicago/Turabian Style

Micaela Vannini; Paola Marchese; Laura Sisti; Andrea Saccani; Taihua Mu; Hongnan Sun; Annamaria Celli. 2021. "Integrated Efforts for the Valorization of Sweet Potato By-Products within a Circular Economy Concept: Biocomposites for Packaging Applications Close the Loop." Polymers 13, no. 7: 1048.

Journal article
Published: 10 July 2020 in Polymers
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Two winery residues, namely vine shoots (ViSh) and wine pomace (WiPo), were up-cycled as fillers in PHBV-based biocomposites. Answering a biorefinery approach, the impact of a preliminary polyphenols extraction step using an acetone/water mixture on the reinforcing effect of fillers was assessed. Biocomposites (filler content up to 20 wt%) were prepared by melt-mixing and compared in terms of final performance (thermal, mechanical and barrier). It was shown that the reinforcing effect was slightly better in the case of vine shoots, while it was not significantly affected by the pre-treatment, demonstrating that these two winery residues could be perfectly used as fillers in composite materials even after an extraction process to maximize their potential of valorization.

ACS Style

Grégoire David; Micaela Vannini; Laura Sisti; Paola Marchese; Annamaria Celli; Nathalie Gontard; Hélène Angellier-Coussy. Eco-Conversion of Two Winery Lignocellulosic Wastes into Fillers for Biocomposites: Vine Shoots and Wine Pomaces. Polymers 2020, 12, 1530 .

AMA Style

Grégoire David, Micaela Vannini, Laura Sisti, Paola Marchese, Annamaria Celli, Nathalie Gontard, Hélène Angellier-Coussy. Eco-Conversion of Two Winery Lignocellulosic Wastes into Fillers for Biocomposites: Vine Shoots and Wine Pomaces. Polymers. 2020; 12 (7):1530.

Chicago/Turabian Style

Grégoire David; Micaela Vannini; Laura Sisti; Paola Marchese; Annamaria Celli; Nathalie Gontard; Hélène Angellier-Coussy. 2020. "Eco-Conversion of Two Winery Lignocellulosic Wastes into Fillers for Biocomposites: Vine Shoots and Wine Pomaces." Polymers 12, no. 7: 1530.

Journal article
Published: 10 July 2020 in Polymer Testing
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Poly(ricinoleic acid) (PRA), coming from the self-polycondensation of ricinoleic acid (RA), which derives from castor oil, is a very interesting polymer because of its intrinsic antimicrobial activity. However, its mechanical properties are insufficient for whatever application, thus copolymerization is required. In this work, two polyesters based on 1,3 propanediol (PD), such as poly(propylene terephthalate) (PPT) and poly(propylene isophthalate) (PPI), were chosen to prepare random copolyesters containing ricinoleate units. Different content of RA have been tested, such as 10 and 25 mol% respect to the comonomer (terephthalic or isophthalic dimethylester), to evaluate the lowest composition able to confer antibacterial activity. The materials were tested against Staphylococcus aureus and Escherichia coli, and 25 mol% of RA unit resulted to impart antimicrobial activity. Furthermore, thermal properties (DSC and TGA) as well as the elastomeric response of films were investigated. The copolymer PPI/PRA containing 10 mol% of RA presents very high elongation at break, around 1300%. Therefore, by tuning the RA amount it is possible to obtain outstanding elastomeric or antibacterial materials, suitable for textiles and/or film engineering applications.

ACS Style

Grazia Totaro; Laura Sisti; Nicole Bozzi Cionci; Gonzalo A. Martinez; Diana Di Gioia; Annamaria Celli. Elastomeric/antibacterial properties in novel random Ricinus communis based-copolyesters. Polymer Testing 2020, 90, 106719 .

AMA Style

Grazia Totaro, Laura Sisti, Nicole Bozzi Cionci, Gonzalo A. Martinez, Diana Di Gioia, Annamaria Celli. Elastomeric/antibacterial properties in novel random Ricinus communis based-copolyesters. Polymer Testing. 2020; 90 ():106719.

Chicago/Turabian Style

Grazia Totaro; Laura Sisti; Nicole Bozzi Cionci; Gonzalo A. Martinez; Diana Di Gioia; Annamaria Celli. 2020. "Elastomeric/antibacterial properties in novel random Ricinus communis based-copolyesters." Polymer Testing 90, no. : 106719.

Review
Published: 18 March 2020 in Molecules
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The world is confronted with the depletion of natural resources due to their unsustainable use and the increasing size of populations. In this context, the efficient use of by-products, residues and wastes generated from agro-industrial and food processing opens the perspective for a wide range of benefits. In particular, legume residues are produced yearly in very large amounts and may represent an interesting source of plant proteins that contribute to satisfying the steadily increasing global protein demand. Innovative biorefinery extraction cascades may also enable the recovery of further bioactive molecules and fibers from these insufficiently tapped biomass streams. This review article gives a summary of the potential for the valorization of legume residual streams resulting from agro-industrial processing and more particularly for pea, green bean and chickpea by-products/wastes. Valuable information on the annual production volumes, geographical origin and state-of-the-art technologies for the extraction of proteins, fibers and other bioactive molecules from this source of biomass, is exhaustively listed and discussed. Finally, promising applications, already using the recovered fractions from pea, bean and chickpea residues for the formulation of feed, food, cosmetic and packaging products, are listed and discussed.

ACS Style

Annalisa Tassoni; Tullia Tedeschi; Chiara Zurlini; Ilaria Maria Cigognini; Janos-Istvan Petrusan; Óscar Rodríguez; Simona Neri; Annamaria Celli; Laura Sisti; Patrizia Cinelli; Francesca Signori; Georgios Tsatsos; Marika Bondi; Stefanie Verstringe; Geert Bruggerman; Philippe F. X. Corvini. State-of-the-Art Production Chains for Peas, Beans and Chickpeas—Valorization of Agro-Industrial Residues and Applications of Derived Extracts. Molecules 2020, 25, 1383 .

AMA Style

Annalisa Tassoni, Tullia Tedeschi, Chiara Zurlini, Ilaria Maria Cigognini, Janos-Istvan Petrusan, Óscar Rodríguez, Simona Neri, Annamaria Celli, Laura Sisti, Patrizia Cinelli, Francesca Signori, Georgios Tsatsos, Marika Bondi, Stefanie Verstringe, Geert Bruggerman, Philippe F. X. Corvini. State-of-the-Art Production Chains for Peas, Beans and Chickpeas—Valorization of Agro-Industrial Residues and Applications of Derived Extracts. Molecules. 2020; 25 (6):1383.

Chicago/Turabian Style

Annalisa Tassoni; Tullia Tedeschi; Chiara Zurlini; Ilaria Maria Cigognini; Janos-Istvan Petrusan; Óscar Rodríguez; Simona Neri; Annamaria Celli; Laura Sisti; Patrizia Cinelli; Francesca Signori; Georgios Tsatsos; Marika Bondi; Stefanie Verstringe; Geert Bruggerman; Philippe F. X. Corvini. 2020. "State-of-the-Art Production Chains for Peas, Beans and Chickpeas—Valorization of Agro-Industrial Residues and Applications of Derived Extracts." Molecules 25, no. 6: 1383.

Paper
Published: 11 March 2020 in New Journal of Chemistry
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3-(4-Hydroxyphenyl)propionic acid intercalated in Mg2Al/layered double hydroxide has been used as a filler in biopolyesters containing the succinate moiety, with the aim of inducing a chain extender effect.

ACS Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Adam Andrzej Marek; Vincent Verney; Fabrice Leroux. Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in biopolyesters containing the succinate moiety. New Journal of Chemistry 2020, 44, 10127 -10136.

AMA Style

Laura Sisti, Grazia Totaro, Annamaria Celli, Adam Andrzej Marek, Vincent Verney, Fabrice Leroux. Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in biopolyesters containing the succinate moiety. New Journal of Chemistry. 2020; 44 (24):10127-10136.

Chicago/Turabian Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Adam Andrzej Marek; Vincent Verney; Fabrice Leroux. 2020. "Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in biopolyesters containing the succinate moiety." New Journal of Chemistry 44, no. 24: 10127-10136.

Journal article
Published: 14 May 2019 in International Journal of Molecular Sciences
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Olive mill wastewater (OMW) is the aqueous waste derived from the production of virgin olive oil. OMW typically contains a wide range of phenol-type molecules, which are natural antioxidants and/or antibacterials. In order to exploit the bioactive molecules and simultaneously decrease the environmental impact of such a food waste stream, OMW has been intercalated into the host structure of ZnAl layered double hydroxide (LDH) and employed as an integrative filler for the preparation of poly(butylene succinate) (PBS) composites by in situ polymerization. From the view point of the polymer continuous phase as well as from the side of the hybrid filler, an investigation was performed in terms of molecular and morphological characteristics by gel permeation chromatography (GPC) and X-ray diffraction (XRD); also, the thermal and mechanical properties were evaluated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic thermomechanical analysis (DMTA). Antibacterial properties have been assessed against a Gram-positive and a Gram-negative bacterium, Staphylococcus aureus and Escherichia coli, respectively, as representatives of potential agents of foodborne illnesses.

ACS Style

Laura Sisti; Grazia Totaro; Nicole Bozzi Cionci; Diana Di Gioia; Annamaria Celli; Vincent Verney; Fabrice Leroux. Olive Mill Wastewater Valorization in Multifunctional Biopolymer Composites for Antibacterial Packaging Application. International Journal of Molecular Sciences 2019, 20, 2376 .

AMA Style

Laura Sisti, Grazia Totaro, Nicole Bozzi Cionci, Diana Di Gioia, Annamaria Celli, Vincent Verney, Fabrice Leroux. Olive Mill Wastewater Valorization in Multifunctional Biopolymer Composites for Antibacterial Packaging Application. International Journal of Molecular Sciences. 2019; 20 (10):2376.

Chicago/Turabian Style

Laura Sisti; Grazia Totaro; Nicole Bozzi Cionci; Diana Di Gioia; Annamaria Celli; Vincent Verney; Fabrice Leroux. 2019. "Olive Mill Wastewater Valorization in Multifunctional Biopolymer Composites for Antibacterial Packaging Application." International Journal of Molecular Sciences 20, no. 10: 2376.

Original paper
Published: 17 April 2019 in Journal of Polymers and the Environment
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Particulate composites based on poly(lactic acid) and poly(butylene succinate) biopolymers have been formulated. Silver skin, the by-product derived from the roasting of coffee beans, has been used as a filler up to a 30 wt% of loading. The microstructure, crystallinity, thermal stability, mechanical properties and water absorption of the derived composites have been investigated. Data so far collected underline that a trade-off of the mechanical properties can be obtained by adding the filler, while the overall amount of crystallinity remains constant. Up to the highest filler content, moisture uptake follows a Fichian behaviour while the value of the contact angle is slightly increased by modification. Thus, silver skin, which actually is used for fuel or soil fertilization, finds here a different environmentally friendly valorization into the field of biocomposites.

ACS Style

Grazia Totaro; Laura Sisti; Maurizio Fiorini; Isabella Lancellotti; Fernanda N. Andreola; Andrea Saccani. Formulation of Green Particulate Composites from PLA and PBS Matrix and Wastes Deriving from the Coffee Production. Journal of Polymers and the Environment 2019, 27, 1488 -1496.

AMA Style

Grazia Totaro, Laura Sisti, Maurizio Fiorini, Isabella Lancellotti, Fernanda N. Andreola, Andrea Saccani. Formulation of Green Particulate Composites from PLA and PBS Matrix and Wastes Deriving from the Coffee Production. Journal of Polymers and the Environment. 2019; 27 (7):1488-1496.

Chicago/Turabian Style

Grazia Totaro; Laura Sisti; Maurizio Fiorini; Isabella Lancellotti; Fernanda N. Andreola; Andrea Saccani. 2019. "Formulation of Green Particulate Composites from PLA and PBS Matrix and Wastes Deriving from the Coffee Production." Journal of Polymers and the Environment 27, no. 7: 1488-1496.

Journal article
Published: 16 March 2019 in Journal of Environmental Chemical Engineering
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Olive Mill Wastewater (OMW) is a food waste stream resulting from the production of virgin olive oil, rich in valuable natural biocompounds, such as vanillic acid, ferulic acid, protocatechuic acid, etc. In order to decrease its environmental impact and to exploit the antioxidant properties of its phenol-type molecules, OMW was intercalated into ZnAl-LDH, as well as some biomolecules composing OMW, for a general concept purpose. Such organo-modified LDHs were then employed for the preparation of poly(butylene succinate) (PBS) and polypropylene (PP) composites through melt blending, to obtain materials with improved antioxidant properties and, subsequently, a better durability. A full characterization of LDHs in terms of thermal stability (TGA), morphology (XRD) and chemical modification (FT-IR) has been carried out. The composites were exposed to UV irradiation through accelerated photo-ageing and the molecular modifications were scrutinized by IR spectroscopy, revealing a strong protective role of LDH hybrid filler against oxidative process.

ACS Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Audrey Diouf-Lewis; Vincent Verney; Fabrice Leroux. A new valorization route for Olive Mill wastewater: Improvement of durability of PP and PBS composites through multifunctional hybrid systems. Journal of Environmental Chemical Engineering 2019, 7, 103026 .

AMA Style

Laura Sisti, Grazia Totaro, Annamaria Celli, Audrey Diouf-Lewis, Vincent Verney, Fabrice Leroux. A new valorization route for Olive Mill wastewater: Improvement of durability of PP and PBS composites through multifunctional hybrid systems. Journal of Environmental Chemical Engineering. 2019; 7 (2):103026.

Chicago/Turabian Style

Laura Sisti; Grazia Totaro; Annamaria Celli; Audrey Diouf-Lewis; Vincent Verney; Fabrice Leroux. 2019. "A new valorization route for Olive Mill wastewater: Improvement of durability of PP and PBS composites through multifunctional hybrid systems." Journal of Environmental Chemical Engineering 7, no. 2: 103026.

Journal article
Published: 12 March 2019 in Beilstein Journal of Nanotechnology
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Polybutylene succinate (PBS) nanocomposite materials were prepared using a melt compounding process. The Mg2Al-based PBS nanocomposites, dispersed with inorganic–organic hybrid materials (layered double hydroxides, LDHs), were functionalized with the amino acids L-histidine (HIS) and L-phenylalanine (PHE). The rheological and anti-ultraviolet (anti-UV) properties were investigated and compared to filler-free PBS as well as LDH Mg2Al/nitrate as references. Both organo-modified LDHs exhibited a remarkable chain-extension effect for PBS with an outstanding increase in the zero-shear viscosity η0 for PBS–Mg2Al/PHE (two order of magnitude increase as compared to filler-free PBS). These results were compared to data found in the literature. Moreover, HIS and PHE anions embedded into the LDH structure can successfully prevent the chain scission reactions that usually occur during photo-ageing of PBS under UV radiation exposure. This highlights the outstanding performance of the LDH hybrid materials, and in particular, their application as a polymer chain extender and UV stabilizer for PBS, which can likely be extended to other biodegradable polymers.

ACS Style

Adam A. Marek; Vincent Verney; Christine Taviot-Gueho; Grazia Totaro; Laura Sisti; Annamaria Celli; Fabrice Leroux. Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides. Beilstein Journal of Nanotechnology 2019, 10, 684 -695.

AMA Style

Adam A. Marek, Vincent Verney, Christine Taviot-Gueho, Grazia Totaro, Laura Sisti, Annamaria Celli, Fabrice Leroux. Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides. Beilstein Journal of Nanotechnology. 2019; 10 (1):684-695.

Chicago/Turabian Style

Adam A. Marek; Vincent Verney; Christine Taviot-Gueho; Grazia Totaro; Laura Sisti; Annamaria Celli; Fabrice Leroux. 2019. "Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides." Beilstein Journal of Nanotechnology 10, no. 1: 684-695.

Journal article
Published: 21 August 2018 in Journal of Solid State Chemistry
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Hybridization of layered double hydroxide (LDH) platelets of Zn2Al cation intra-sheet composition was performed with L-tyrosine (TYR), L-tryptophan (TRP) and 3-(4-hydroxyphenyl) propionic (HPP) acid, and the hybrid LDH materials were characterized by the means of conventional techniques as X-ray diffraction and thermal analysis to address their sandwich structures and their mass formulae, respectively. Subsequently they have been considered as «green» filler and dispersed into poly(butylene succinate) (PBS) through a melt extrusion process. In regard of the rheological properties, it was possible to extend the PBS chain thus leading to a better processability. Another aspect was the ability to stand photo-degradation under UV radiation for applicative purposes. Owing to the organic chromophores acting as potential UV stabilizers, it was found a higher chain extension effect for PBS in the case of LDH/TRP that was also performing in time of irradiation tests. This opens new routes for designing filler of «white and green» relevances to endow bio-source polymer with properties for practical applications and in respect of environment and global sustainability.

ACS Style

Adam A. Marek; Vincent Verney; Grazia Totaro; Laura Sisti; Annamaria Celli; Fabrice Leroux. Composites for « white and green » solutions: Coupling UV resistance and chain extension effect from poly(butylene succinate) and layered double hydroxides composites. Journal of Solid State Chemistry 2018, 268, 9 -15.

AMA Style

Adam A. Marek, Vincent Verney, Grazia Totaro, Laura Sisti, Annamaria Celli, Fabrice Leroux. Composites for « white and green » solutions: Coupling UV resistance and chain extension effect from poly(butylene succinate) and layered double hydroxides composites. Journal of Solid State Chemistry. 2018; 268 ():9-15.

Chicago/Turabian Style

Adam A. Marek; Vincent Verney; Grazia Totaro; Laura Sisti; Annamaria Celli; Fabrice Leroux. 2018. "Composites for « white and green » solutions: Coupling UV resistance and chain extension effect from poly(butylene succinate) and layered double hydroxides composites." Journal of Solid State Chemistry 268, no. : 9-15.

Journal article
Published: 01 August 2018 in Journal of Environmental Chemical Engineering
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ACS Style

Laura Sisti; Susheel Kalia; Grazia Totaro; Micaela Vannini; Andrea Negroni; Giulio Zanaroli; Annamaria Celli. Enzymatically treated curaua fibers in poly(butylene succinate)-based biocomposites. Journal of Environmental Chemical Engineering 2018, 6, 4452 -4458.

AMA Style

Laura Sisti, Susheel Kalia, Grazia Totaro, Micaela Vannini, Andrea Negroni, Giulio Zanaroli, Annamaria Celli. Enzymatically treated curaua fibers in poly(butylene succinate)-based biocomposites. Journal of Environmental Chemical Engineering. 2018; 6 (4):4452-4458.

Chicago/Turabian Style

Laura Sisti; Susheel Kalia; Grazia Totaro; Micaela Vannini; Andrea Negroni; Giulio Zanaroli; Annamaria Celli. 2018. "Enzymatically treated curaua fibers in poly(butylene succinate)-based biocomposites." Journal of Environmental Chemical Engineering 6, no. 4: 4452-4458.

Article
Published: 16 April 2018 in Polymer Composites
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Particulate composites with polylactide (PLA) as a matrix and wastes deriving from the wine production have been formulated at different compositions. The microstructure and the mechanical properties of the composites, as well as the thermal stability and water uptake have been evaluated. The results showed that the wine waste residue does not compromise the thermal stability of the matrix while improves the impact strength and influences tensile properties. Specifically, tensile strength progressively decreases on addition of the winery waste, while the elastic modulus slightly increases. This behavior was attributed to the inhomogeneity of the filler particle size and morphology, which can partially induce a discontinuous interface at high filler loading and affect the water uptake. An increase in the value of the water contact angle is obtained below a 10% wt content and the mechanism of water uptake is not modified below the 20 wt% of filler. In any case, up to a content of 15 weight percent, winery wastes can be used in the plain matrix as an extender. Since simple and low cost operations are requested to obtain suitable fillers, an overall decrease in the material cost can be envisaged thus partially solving the drawbacks of PLA exploitation in the packaging industry, and leading to cost‐effective application. Moreover, the conversion of lignocellulosic wastes as filler in biocomposites would be in favor of waste reduction while adding value to the agro‐food chain. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers

ACS Style

Andrea Saccani; Laura Sisti; Stefania Manzi; Maurizio Fiorini. PLA composites formulated recycling residuals of the winery industry. Polymer Composites 2018, 40, 1378 -1383.

AMA Style

Andrea Saccani, Laura Sisti, Stefania Manzi, Maurizio Fiorini. PLA composites formulated recycling residuals of the winery industry. Polymer Composites. 2018; 40 (4):1378-1383.

Chicago/Turabian Style

Andrea Saccani; Laura Sisti; Stefania Manzi; Maurizio Fiorini. 2018. "PLA composites formulated recycling residuals of the winery industry." Polymer Composites 40, no. 4: 1378-1383.

Journal article
Published: 01 April 2018 in Composites Part B: Engineering
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ACS Style

Grazia Totaro; Laura Sisti; Micaela Vannini; Paola Marchese; Annalisa Tassoni; Marcello Salvatore Lenucci; Matteo Lamborghini; Susheel Kalia; Annamaria Celli. A new route of valorization of rice endosperm by-product: Production of polymeric biocomposites. Composites Part B: Engineering 2018, 139, 195 -202.

AMA Style

Grazia Totaro, Laura Sisti, Micaela Vannini, Paola Marchese, Annalisa Tassoni, Marcello Salvatore Lenucci, Matteo Lamborghini, Susheel Kalia, Annamaria Celli. A new route of valorization of rice endosperm by-product: Production of polymeric biocomposites. Composites Part B: Engineering. 2018; 139 ():195-202.

Chicago/Turabian Style

Grazia Totaro; Laura Sisti; Micaela Vannini; Paola Marchese; Annalisa Tassoni; Marcello Salvatore Lenucci; Matteo Lamborghini; Susheel Kalia; Annamaria Celli. 2018. "A new route of valorization of rice endosperm by-product: Production of polymeric biocomposites." Composites Part B: Engineering 139, no. : 195-202.

Journal article
Published: 01 February 2018 in Journal of Nanoscience and Nanotechnology
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Bio-based polyamide 11 (PA11)-graphene nanocomposites with different filler concentrations (0.25, 0.5, 0.75, 1.5 and 3 wt%) were prepared by In Situ polymerization starting from a water dispersed suspension of graphene nanoplatelets. The effects of the incorporation of the filler were studied in terms of molecular, morphological, thermal and dynamic mechanical properties of the final materials. During the crystallization process from the melt, the filler induces a notable nucleating effect even if the crystal growth rate tends to decrease. The glass transition temperature tends to shift to higher temperatures indicating a decrement of the molecular mobility. Thermal stability is enhanced confirming a good filler dispersion into the matrix. Mechanical reinforcement, investigated by means of a dynamic mechanical thermal analyzer was also highlighted. It was observed that a graphene concentration of 0.75 wt% induces the highest final performances.

ACS Style

Laura Sisti; Grazia Totaro; Micaela Vannini; Loris Giorgini; Simone Ligi; Annamaria Celli. Bio-Based PA11/Graphene Nanocomposites Prepared by In Situ Polymerization. Journal of Nanoscience and Nanotechnology 2018, 18, 1169 -1175.

AMA Style

Laura Sisti, Grazia Totaro, Micaela Vannini, Loris Giorgini, Simone Ligi, Annamaria Celli. Bio-Based PA11/Graphene Nanocomposites Prepared by In Situ Polymerization. Journal of Nanoscience and Nanotechnology. 2018; 18 (2):1169-1175.

Chicago/Turabian Style

Laura Sisti; Grazia Totaro; Micaela Vannini; Loris Giorgini; Simone Ligi; Annamaria Celli. 2018. "Bio-Based PA11/Graphene Nanocomposites Prepared by In Situ Polymerization." Journal of Nanoscience and Nanotechnology 18, no. 2: 1169-1175.

Journal article
Published: 30 January 2018 in Journal of Renewable Materials
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New fully biobased polyether/esters have been synthesized by a one-pot polymerization reaction of ricinoleic acid (RA), vanillic acid (VA) and ethylene carbonate (EC). In particular, EC selectively reacts with the phenolic group of VA to obtain in-situ 4-(2-hydroxyethoxy)-3-methoxybenzoate (EV), suitable for subsequent copolymerization with RA. The procedure was carried out in a single step, without any solvent. Chemical structure and thermal properties of the new materials were studied in order to explore relationships between composition and final performances. The combination of EV, bearing a rigid aromatic structure, with RA, characterized by high flexibility and potential biocidal activity, allows the production of a novel class of fully biobased aliphatic-aromatic polymers presenting tuneable thermal properties and suitable for a range of applications, for example, in active packaging and biomedical fields.

ACS Style

Claudio Gioia; Maria Barbara Banella; Grazia Totaro; Micaela Vannini; Paola Marchese; Martino Colonna; Laura Sisti; Annamaria Celli. Biobased Vanillic Acid and Ricinoleic Acid: Building Blocks for Fully Renewable Copolyesters. Journal of Renewable Materials 2018, 6, 126 -135.

AMA Style

Claudio Gioia, Maria Barbara Banella, Grazia Totaro, Micaela Vannini, Paola Marchese, Martino Colonna, Laura Sisti, Annamaria Celli. Biobased Vanillic Acid and Ricinoleic Acid: Building Blocks for Fully Renewable Copolyesters. Journal of Renewable Materials. 2018; 6 (1):126-135.

Chicago/Turabian Style

Claudio Gioia; Maria Barbara Banella; Grazia Totaro; Micaela Vannini; Paola Marchese; Martino Colonna; Laura Sisti; Annamaria Celli. 2018. "Biobased Vanillic Acid and Ricinoleic Acid: Building Blocks for Fully Renewable Copolyesters." Journal of Renewable Materials 6, no. 1: 126-135.

Article
Published: 14 January 2018 in Journal of Polymer Science
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Composites formulated with an epoxy matrix, kenaf fibers, and the residuals of the wine industry are investigated at different compositions. The microstructure and the mechanical properties of the composites have been studied, as well as their moisture uptake. A proper mix design of the composite can allow the waste inclusion as filler either increasing or providing mechanical properties equal to those of the plain matrix. The increase in the water permeability induced by the waste is lower than that of induced by the kenaf fibers. Because of the simple mixing and pretreatment operation, this easy-to-handle recycling route may decrease the overall cost of the material reducing the amount of polymer matrix and offers a valuable alternative to damping. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46234.

ACS Style

Andrea Saccani; Stefania Manzi; Luca Baldazzi; Laura Sisti. Epoxy composites containing wastes from wine production as fillers. Journal of Polymer Science 2018, 135, 1 .

AMA Style

Andrea Saccani, Stefania Manzi, Luca Baldazzi, Laura Sisti. Epoxy composites containing wastes from wine production as fillers. Journal of Polymer Science. 2018; 135 (18):1.

Chicago/Turabian Style

Andrea Saccani; Stefania Manzi; Luca Baldazzi; Laura Sisti. 2018. "Epoxy composites containing wastes from wine production as fillers." Journal of Polymer Science 135, no. 18: 1.

Journals
Published: 05 January 2018 in Dalton Transactions
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Nanocomposites based on poly(butylene succinate) and hydrotalcite-type anionic clays organo-modified with antibacterial biomolecules have been prepared by in situ polymerization.

ACS Style

Grazia Totaro; Laura Sisti; Annamaria Celli; Irene Aloisio; Diana Di Gioia; Adam Andrzej Marek; Vincent Verney; Fabrice Leroux. Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization. Dalton Transactions 2018, 47, 3155 -3165.

AMA Style

Grazia Totaro, Laura Sisti, Annamaria Celli, Irene Aloisio, Diana Di Gioia, Adam Andrzej Marek, Vincent Verney, Fabrice Leroux. Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization. Dalton Transactions. 2018; 47 (9):3155-3165.

Chicago/Turabian Style

Grazia Totaro; Laura Sisti; Annamaria Celli; Irene Aloisio; Diana Di Gioia; Adam Andrzej Marek; Vincent Verney; Fabrice Leroux. 2018. "Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization." Dalton Transactions 47, no. 9: 3155-3165.