fernandez, inigo
(2018)
BIOACTIVE CROSSLINKED PROTEIN-BASED FILMS REINFORCED BY NANOPARTICLES.
[Tesi di dottorato]
This is the latest version of this item.
Item Type: |
Tesi di dottorato
|
Resource language: |
English |
Title: |
BIOACTIVE CROSSLINKED PROTEIN-BASED FILMS REINFORCED BY NANOPARTICLES |
Creators: |
Creators | Email |
---|
fernandez, inigo | inigo.fernandez@unina.it |
|
Date: |
4 January 2018 |
Number of Pages: |
91 |
Institution: |
Università degli Studi di Napoli Federico II |
Department: |
dep19 |
Dottorato: |
phd012 |
Ciclo di dottorato: |
30 |
Coordinatore del Corso di dottorato: |
nome | email |
---|
Sannia, Gioavanni | sannia@unina.it |
|
Tutor: |
nome | email |
---|
Di Pierro, Prospero | UNSPECIFIED |
|
Date: |
4 January 2018 |
Number of Pages: |
91 |
Keywords: |
ACTIVE PACKAGING |
Settori scientifico-disciplinari del MIUR: |
Area 05 - Scienze biologiche > BIO/10 - Biochimica |
[error in script]
[error in script]
Date Deposited: |
15 Jan 2018 09:49 |
Last Modified: |
14 Mar 2019 12:16 |
URI: |
http://www.fedoa.unina.it/id/eprint/12268 |

Available Versions of this Item
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BIOACTIVE CROSSLINKED PROTEIN-BASED FILMS REINFORCED BY NANOPARTICLES. (deposited 15 Jan 2018 09:49)
[Currently Displayed]
Collection description
Edible films nanostructured with mesopouros silica or with its amino-functionalized derivative
were prepared from seed bitter vetch proteins, before and after their crosslinking by microbial
transglutaminase, and characterized for their physicochemical, morphological and bioactive
properties. Film tensile strength and elongation at break significantly increased in the presence of
both kinds of nanoparticles, even though the amino-functionalized ones resulted more effective,
determining a two-fold increase of the mechanical properties, probably because of their ability to
ionically interact with the negative moieties of the matrix proteins. Transglutaminase-catalyzed
protein crosslinking counteracted these nanoparticle induced effects while, conversely, it further
increased film barrier properties to gases and water vapour obtained by nanoparticles alone. AFM
and SEM analyses indicated a more compact structure of the nanocomposite film matrix with
more evident continuous zones compared to control films, as well as an effect of transglutaminase
in including more homogenously both nanoparticles into the crosslinked protein network. Finally,
all films exhibited antimicrobial and antifungal activities, probably due to phenolic compound(s)
present in the bitter vetch protein concentrate, and the addition to the film forming solutions of
the bioactive oligopeptide nisin significantly enhanced these properties.
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