An analytic model of tidal circulation in a narrow estuary
In: Journal of marine research, Band 51, Heft 3, S. 447-465
ISSN: 1543-9542
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In: Journal of marine research, Band 51, Heft 3, S. 447-465
ISSN: 1543-9542
In: Advances in applied ceramics: structural, functional and bioceramics, Band 115, Heft 7, S. 435-442
ISSN: 1743-6761
In: Advances in applied ceramics: structural, functional and bioceramics, Band 107, Heft 1, S. 34-36
ISSN: 1743-6761
In: International food research journal: IFRJ, Band 28, Heft 1, S. 44-55
ISSN: 2231-7546
To improve the preservation of strawberries during storage, an edible coating was prepared using a layer-by-layer self-assembly electrostatic deposition technology. Sodium polyacrylate (PAAS) was used as polyanion solution, and chitosan (CS) was used as polycation solution. The obtained coating was characterised to determine its self-repairing ability and its effect on the preservation of strawberries. The results showed that CS (9 mg/mL) and PAAS (5 mg/mL) could assemble, by hydrogen and ionic bonding, to form a new coating with no obvious pores and had a tight cross-sectional structure. The PAAS/CS self-assembled coating displayed high water resistance (water vapor transmission rate, 31.22 × 10-11 g• m/m2•s•Pa·), transparency (light transmittance, 87.5%), and excellent mechanical properties (tensile strength, 17.31 MPa; elongation at break, 13.72%). The self-repairing ability of the PAAS/CS coating upon scratching was manifested by the repair of the coating's morphology (repair rate, 81.05%), and the restoration of its mechanical properties. When compared with uncoated strawberries, PAAS/CS coating significantly reduced the weight loss rate, the rot rate during storage (p < 0.05), and the loss of anthocyanin and vitamin C. In conclusion, the PAAS/CS coating greatly improved the fresh-keeping of strawberries.
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 95, S. 83-90
ISSN: 1090-2414