Development of lignin microcapsules for the controlled delivery of actives

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dc.contributor.advisor Crestini, Claudia it_IT Giuriato, Charlotte <1992> it_IT 2021-10-04 it_IT 2022-01-11T09:26:00Z 2021-10-25 it_IT
dc.description.abstract Lignin is the most abundant aromatic biopolymer on Earth. Every year, about 70x10(^6) tons of lignin are produced, but its utilization for the production of high added-value materials is not so easy and direct. This is due to the highly complex structure of this material, which also differs depending on the botanical origin. Moreover, the harsh conditions of the industrial extraction processes (from which the so-called “technical lignins” are obtained) contribute to significantly modify its structure making it very dissimilar to the native one. Nonetheless, in the last years several attempts towards lignin valorisation have been made, and uses of this renewable biopolymer in place of less eco-friendly and synthetic materials have increased. In particular, the direct generation of nanostructures from technical lignins is highly attractive because it allows for the exploitation of their peculiar characteristics without the need for time-consuming and costly pre-treatments. In this context, the present Thesis work aims at developing lignin microcapsules for the controlled delivery of lipophilic actives, using ultrasonication as a green and scalable method of synthesis. Time-dependent release of the active and capsule stability at different pH conditions were evaluated, taking into account different lignin/active ratios and the effect of ad hoc prepared additives. Morphological and structural characterisations were carried out as well to extrapolate structure-property relationships. it_IT
dc.language.iso en it_IT
dc.publisher Università Ca' Foscari Venezia it_IT
dc.rights © Charlotte Giuriato, 2021 it_IT
dc.title Development of lignin microcapsules for the controlled delivery of actives it_IT
dc.title.alternative Development of lignin microcapsules for the controlled delivery of actives it_IT
dc.type Master's Degree Thesis it_IT Chimica e tecnologie sostenibili it_IT Laurea magistrale it_IT Dipartimento di Scienze Molecolari e Nanosistemi it_IT
dc.description.academicyear 2020/2021_sessione autunnale_181021 it_IT
dc.rights.accessrights closedAccess it_IT
dc.thesis.matricno 839650 it_IT
dc.description.note it_IT it_IT it_IT 10000-01-01
dc.provenance.upload Charlotte Giuriato (, 2021-10-04 it_IT
dc.provenance.plagiarycheck Claudia Crestini (, 2021-10-18 it_IT

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