The Experts below are selected from a list of 5166 Experts worldwide ranked by ideXlab platform
Russell J Tweddell - One of the best experts on this subject based on the ideXlab platform.
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:ABSTRACT Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, an...
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, and sodium formate reduced disease severity by at least 50% when applied 2 days after H. solani inoculation. With the exception of calcium chloride and sodium formate, these salts also were shown to strongly inhibit H. solani mycelial growth or spore germination in vitro. Results of this study further demonstrate the possibility of using selected salts for the control of potato silver scurf.
V Hervieux - One of the best experts on this subject based on the ideXlab platform.
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:ABSTRACT Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, an...
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, and sodium formate reduced disease severity by at least 50% when applied 2 days after H. solani inoculation. With the exception of calcium chloride and sodium formate, these salts also were shown to strongly inhibit H. solani mycelial growth or spore germination in vitro. Results of this study further demonstrate the possibility of using selected salts for the control of potato silver scurf.
E S Yaganza - One of the best experts on this subject based on the ideXlab platform.
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:ABSTRACT Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, an...
-
effect of organic and inorganic salts on the development of helminthosporium solani the causal agent of potato silver scurf
Plant Disease, 2002Co-Authors: V Hervieux, E S Yaganza, Russell J TweddellAbstract:Potato silver scurf, caused by Helminthosporium solani, is an important postharvest disease of economic significance. Control of H. solani has been accomplished primarily by postharvest applications of thiabendazole. However, many strains of H. solani have become resistant to thiabendazole, resulting in failure of disease control. Consequently, alternative control strategies are needed. This study showed that several salts significantly reduced silver scurf development on potato tuber at a concentration of 0.2 M and that the timing of application also influenced salt efficacy. Among the 23 tested salts, aluminum chloride was the only one reducing silver scurf severity when applied either 2, 4, or 7 days after H. solani inoculation. Aluminum Lactate, Potassium sorbate, sodium carbonate, sodium metabisulfite, and trisodium phosphate also markedly reduced silver scurf severity but only when applied 2 or 4 days after inoculation. Ammonium acetate, calcium chloride, sodium benzoate, sodium citrate, and sodium formate reduced disease severity by at least 50% when applied 2 days after H. solani inoculation. With the exception of calcium chloride and sodium formate, these salts also were shown to strongly inhibit H. solani mycelial growth or spore germination in vitro. Results of this study further demonstrate the possibility of using selected salts for the control of potato silver scurf.
Costas G Biliaderis - One of the best experts on this subject based on the ideXlab platform.
-
thermal mechanical and water vapor barrier properties of sodium caseinate films containing antimicrobials and their inhibitory action on listeria monocytogenes
Food Hydrocolloids, 2008Co-Authors: Eleana Kristo, Konstantinos P Koutsoumanis, Costas G BiliaderisAbstract:Abstract Antimicrobial films were prepared by incorporating different concentrations of sodium Lactate (Na Lactate), Potassium sorbate (K sorbate) and nisin into sorbitol-plasticized sodium caseinate (SC) films. The impact of antimicrobial compounds on the water sorption, water vapor barrier properties and thermo-mechanical behavior of SC films was investigated. Furthermore, their antimicrobial effectiveness against Listeria monocytogenes was studied as a function of antimicrobial concentration. The water content and water vapor permeability (WVP) of SC films increased with increasing Na Lactate and K sorbate concentration, with Na Lactate-containing SC films showing higher capacity to absorb moisture and greater WVP values than the films containing K sorbate. On the other hand, nisin addition did not cause significant changes in the water uptake and WVP of SC films. The incorporation of Na Lactate and K sorbate affected in different way the glass transition temperature ( T g defined as tan δ peak) of antimicrobial SC films, with Na Lactate increasing and the K sorbate depressing the T g of the system. The addition of increasing Na Lactate and K sorbate concentration resulted in reduction of Young modulus ( E ) and maximum tensile strength ( σ max ) and increasing of elongation at break (% EB) suggesting that both antimicrobials acted as plasticizers for the SC films. Nisin-containing SC films were the most effective in reducing growth of L. monocytogenes , followed by K sorbate-impregnated SC films, whereas films containing Na Lactate were slightly effective in this respect and only at the higher concentration (40% w/w film dry basis). The results indicated that for effective applications of antimicrobial coatings in foods, sufficient knowledge is required not only on the independent properties of the coating film and the antimicrobial compound but also on their interactions.
A Lebert - One of the best experts on this subject based on the ideXlab platform.
-
modelling the behaviour of listeria monocytogenes in ground pork as a function of ph water activity nature and concentration of organic acid salts
Journal of Applied Microbiology, 2007Co-Authors: Veronique Zuliani, Isabelle Lebert, Jeanchristophe Augustin, P Garry, J L Vendeuvre, A LebertAbstract:Aims: to study and model the effect of sodium acetate, sodium Lactate, Potassium sorbate and combination of acid salts on the behaviour of Listeria monocytogenes in ground pork. Methods and Results: Water activity (aw), pH and concentration of acid salt of the meat were adjusted. The behaviour of inoculated L. monocytogenes was studied and modelled according to physicochemical parameters values. Whatever the acid salt concentration used, we observed an inhibition of the growth of L. monocytogenes at pH 5·6 and aw 0·95. At pH 6·2 and aw 0·97, addition of 402 mmol l−1 of sodium Lactate or 60 mmol l−1 of Potassium sorbate was required to observe a slower growth. Conclusions: The inhibitory effect of acid salts was a function of pH, aw, as well as of the nature and concentration of acid salts added. When one acid salt was added, the Augustin's model (Augustin et al. 2005) yielded generally correct predictions of either the survival or growth of L. monocytogenes. Significance and Impact of the Study: The suggested model can be used for risk assessment concerning L. monocytogenes in pork products.
