Plant-crafted starches for bioplastics production
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Plant-crafted starches for bioplastics production. / Sagnelli, Domenico; Hebelstrup, Kim H.; Leroy, Eric; Rolland-Sabaté, Agnès; Guilois, Sophie; Kirkensgaard, Jacob Judas Kain; Mortensen, Kell; Lourdin, Denis; Blennow, Andreas.
In: Carbohydrate Polymers, Vol. 152, 2016, p. 398-408.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Plant-crafted starches for bioplastics production
AU - Sagnelli, Domenico
AU - Hebelstrup, Kim H.
AU - Leroy, Eric
AU - Rolland-Sabaté, Agnès
AU - Guilois, Sophie
AU - Kirkensgaard, Jacob Judas Kain
AU - Mortensen, Kell
AU - Lourdin, Denis
AU - Blennow, Andreas
N1 - Artikel + corrigendum
PY - 2016
Y1 - 2016
N2 - Transgenically-produced amylose-only (AO) starch was used to manufacture bioplastic prototypes. Extruded starch samples were tested for crystal residues, elasticity, glass transition temperature, mechanical properties, molecular mass and microstructure. The AO starch granule crystallinity was both of the B- and Vh-type, while the isogenic control starch was mainly A-type. The first of three endothermic transitions was attributed to gelatinization at about 60°C. The second and third peaks were identified as melting of the starch and amylose-lipid complexes, respectively. After extrusion, the AO samples displayed Vh- and B-type crystalline structures, the B-type polymorph being the dominant one. The AO prototypes demonstrated a 6-fold higher mechanical stress at break and 2.5-fold higher strain at break compared to control starch. Dynamic mechanical analysis showed a significant increase in the storage modulus (E') for AO samples compared to the control. The data support the use of pure starch-based bioplastics devoid of non-polysaccharide fillers.
AB - Transgenically-produced amylose-only (AO) starch was used to manufacture bioplastic prototypes. Extruded starch samples were tested for crystal residues, elasticity, glass transition temperature, mechanical properties, molecular mass and microstructure. The AO starch granule crystallinity was both of the B- and Vh-type, while the isogenic control starch was mainly A-type. The first of three endothermic transitions was attributed to gelatinization at about 60°C. The second and third peaks were identified as melting of the starch and amylose-lipid complexes, respectively. After extrusion, the AO samples displayed Vh- and B-type crystalline structures, the B-type polymorph being the dominant one. The AO prototypes demonstrated a 6-fold higher mechanical stress at break and 2.5-fold higher strain at break compared to control starch. Dynamic mechanical analysis showed a significant increase in the storage modulus (E') for AO samples compared to the control. The data support the use of pure starch-based bioplastics devoid of non-polysaccharide fillers.
KW - Journal Article
U2 - 10.1016/j.carbpol.2016.07.039
DO - 10.1016/j.carbpol.2016.07.039
M3 - Journal article
C2 - 27516287
VL - 152
SP - 398
EP - 408
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
SN - 0144-8617
ER -
ID: 166197466