Effects of three different nano-silver formulations on cut Acacia holosericea vase life

Liu, Jiping, Ratnayake, Kamani, Joyce, Daryl C., He, Shenggen and Zhang, Zhaoqi (2012) Effects of three different nano-silver formulations on cut Acacia holosericea vase life. Postharvest Biology And Technology, 66 8-15. doi:10.1016/j.postharvbio.2011.11.005

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Author Liu, Jiping
Ratnayake, Kamani
Joyce, Daryl C.
He, Shenggen
Zhang, Zhaoqi
Title Effects of three different nano-silver formulations on cut Acacia holosericea vase life
Formatted title
Effects of three different nano-silver formulations on cut Acacia holosericea vase life
Journal name Postharvest Biology And Technology   Check publisher's open access policy
ISSN 0925-5214
1873-2356
Publication date 2012-04
Year available 2011
Sub-type Article (original research)
DOI 10.1016/j.postharvbio.2011.11.005
Open Access Status File (Author Post-print)
Volume 66
Start page 8
End page 15
Total pages 8
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
The relative efficacies of three chemically different nano-silver (NS) formulations were evaluated for their potential to extend the vase life of short-lived cut Acacia holosericea foliage. The novel proprietary formulations were neutral NS, acidic NS and ionic NS. They were characterised in terms of particle size, pH value, colour and odour. The NS treatments were applied as vase (lower concentrations) or pulse (higher concentrations) solutions. Among the treatments compared, neutral NS as a 4mgL -1 vase solution or as a 40mgL -1 24h pulse treatment and acidic NS as a 0.5mgL -1 vase solution or as a 5mgL -1 24h pulse treatment significantly (P≤0.05) extended the vase life of A. holosericea. Vase life extensions over the deionised water (DI) controls were associated with better maintenance of relative fresh weight and vase water uptake, suppression of bacterial growth in the vase water and stem-end, and delaying stem blockage. In contrast, ionic-NS applied as a 0.5 or 1mgL -1 vase solution treatment or as a 5 or 10mgL -1 pulse treatment caused severe phytotoxicity to cut A. holosericea stems. The results suggest that NS treatments, especially neutral NS and acidic NS pulse treatments, could be a potential postharvest technology for commercial application to cut A. holosericea.
Keyword Antimicrobial
Cut foliage
Hydraulic Conductivity
Nano-silver
Water relations
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 15 Mar 2012, 11:00:01 EST by Kamani Ratnayake on behalf of School of Agriculture and Food Sciences