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Screening of sorghum grain biorefinery by-products for growth inhibition of two common postharvest pathogens of mango
Citation
Do, TK and Dann, EK and Stanley, R, Screening of sorghum grain biorefinery by-products for growth inhibition of two common postharvest pathogens of mango, Acta Horticulturae, 17-22 August 2014, Brisbane, Australia, pp. 219-224. ISSN 0567-7572 (2016) [Refereed Conference Paper]
Copyright Statement
Copyright 2016 ISHS
DOI: doi:10.17660/ActaHortic.2016.1120.33
Abstract
Plants have protective phytochemicals and may also produce phytoalexins in response to fungal attack. Phytochemicals from food waste sources may have potential application as crop protectants. Condensed Distillers' Solubles (CDS) and Dried Distillers' Grains (DDG) are by-products of ethanol production from sorghum grain. This study tested the inhibitory effects of these compounds on growth of two postharvest fungal pathogens of mango, Colletotrichum gloeosporioides (Cg) and Lasiodiplodia theobromae (Lt) using Petri dish growth inhibition assays. The EC50, (Effective Concentration at which mycelial growth is inhibited by 50%), for Cg of CDS was 10.4% v/v of the crude extract. The EC50 of DDG for Cg and Lt was 8.4 and 19.1 mg mL-1, respectively. Mycelial growth of Lt was significantly increased by CDS at 25, 10 and 1% v/v at four and five days after incubation, but after 6 days of incubation there was no significant difference from controls and lower CDS concentrations. We are now testing the sorghum grain biofuel by-products as postharvest treatments and field sprays, to assess their potential in reducing losses by postharvest diseases in commercial horticultural production.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | biorefinery by-products, antimicrobial, mango, anthracnose, fungal pathogens |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Crop and pasture production |
Research Field: | Crop and pasture biomass and bioproducts |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Horticultural crops |
Objective Field: | Tropical fruit |
UTAS Author: | Stanley, R (Professor Roger Stanley) |
ID Code: | 116886 |
Year Published: | 2016 |
Deposited By: | Tasmanian Institute of Agriculture |
Deposited On: | 2017-05-24 |
Last Modified: | 2018-03-14 |
Downloads: | 0 |
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