Antifungal activity of sulfur-containing salts against the development of carrot cavity spot and potato dry rot

Kolaei, E.A.; Tweddell, Russell J.; Avis, Tyler J.

doi:10.1016/j.postharvbio.2011.09.006

Cited by 30 publications

(29 citation statements)

References 28 publications

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“…Cavity spot and dry rot are considered amongst the most prevalent postharvest diseases in carrot roots and potato tubers. Dry rot is mainly controlled by postharvest applications of the fungicide thiabendazole (Kolaei et al ., ). There have been numerous reports that show an increase in resistance of F .…”

Section: Discussionmentioning

confidence: 97%

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Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Kolaei

Cenatus

Tweddell

et al. 2013

Annals of Applied Biology

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As an alternative to the use of synthetic chemical fungicides to control plant disease, aluminium-containing salts were evaluated for their effects on the mycelial growth of various fungal or fungus-like pathogens and their ability to control carrot cavity spot (Pythium sulcatum) and potato dry rot (Fusarium sambucinum). Results showed that various aluminium-containing salts provided strong inhibition of all the tested pathogens (Alternaria solani, Botrytis cinerea, F. sambucinum, P. sulcatum and Rhizopus stolonifer) with minimal inhibitory concentration of 1-10 mM. Aluminium chloride and aluminium sulphate were generally the most effective, inhibiting mycelial growth of pathogens by as much as 47% and 100%, respectively, at a salt concentration of 1 mM. Applied at 5 mM, aluminium sulphate also provided 28% and 100% inhibition of dry rot and cavity spot, respectively. Aluminium chloride (5 mM) reduced dry rot by 25% whereas aluminium lactate (5 mM) decreased cavity spot lesions by 86%. These results indicate that various aluminium-containing salts may provide an alternative to the use of synthetic fungicides to control these pathogens.

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Section: Discussionmentioning

confidence: 97%

“…Three wounds were performed on each carrot by scraping the epidermis with a sterile razor blade according to Kolaei et al . (). An agar plug (0.5 cm diameter) covered with actively growing mycelium of P .…”

Section: Methodsmentioning

confidence: 97%

Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Kolaei

Cenatus

Tweddell

et al. 2013

Annals of Applied Biology

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“…Sulfurous acid salts do possess some antifungal properties. Kolaei, Tweddell, and Avis (2012) found sulfur containing salts to effectively control postharvest fungal rots on carrot. Acetic acid has some antimicrobial properties (Sholberg, Haag, Hocking, & Bedford, 2000).…”

Section: Mold Infestationmentioning

confidence: 99%

Evaluation of drying method and pretreatment effects on the nutritional and antioxidant properties of oyster mushroom ( Pleurotus ostreatus )

Mutukwa

Hall

Cihacek

et al. 2019

J Food Process Preserv

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Effect of drying (solar and oven), blanching (steam and water), and chemical pretreatments (lemon juice, vinegar, and potassium bisulfite) on oyster mushroom (Pleurotus ostreatus) quality was studied. Total phenolic content, total flavonoid content, ergothioneine, oxygen radical absorbance capacity, moisture, mineral content, protein, and mold infestation were evaluated. Ergothioneine and total phenolics were lower in blanched mushrooms compared to un‐blanched ones. Total flavonoids were highest in water blanched (2.87 ± 0.32–5.98 ± 0.41 mg/g, dry wt.) and least in un‐blanched mushrooms (1.16 ± 0.16–0.3.46 ± 0.3 mg/g, dry wt.). Among the chemical pretreatments, higher total phenolics were observed with vinegar and potassium bisulfite treatments. Blanching resulted in lower K, Mg, Na, S, and P content. Mineral nutrients varied with chemical pretreatments. Blanching followed by either lemon juice or no chemical treatment resulted in high mold infestation. Among the un‐blanched samples, those treated with vinegar had the least mold. Drying method, blanching, and chemical pretreatments affect oyster mushroom quality as demonstrated in this study. Practical applications This study focuses on drying and pretreatment methods that can be adopted in resource limited environments. The study shows no difference in the observed nutritional attributes of solar and oven dried mushroom, hence where solar energy is the only option for drying, there is no consequence incurred. While commercial processors have access to several preservation treatments, this may not be so for the subsistence producer. The use of lemon juice, vinegar, or blanching would be inexpensive thus practical even where resources are limited. Since mushroom consumers place much value nutritional and antioxidant properties, knowledge of how these simple inexpensive preservation methods may affect these quality characteristics may help inform preservation decisions.

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“…Ginseng anthracnose caused by Colletotrichum gloeosporioides is also suppressed by treatment with lime sulfur diluted 400 times (Lim et al, 2015). Sulfur containing salts can also inhibit postharvest diseases such as carrot cavity spot caused by Pythium sulcatum and potato dry rot caused by Fusarium sambucinum (Kolaei et al, 2012). Likewise, disease severity caused by D. citri on citrus leaves was decreased by pretreatment with bio-sulfur in the present study (Fig.…”

Section: Resultsmentioning

confidence: 99%

Suppression of Melanose Caused by Diaporthe citri on Citrus Leaves Pretreated with Bio-sulfur

Shin

Kim

et al. 2019

Plant Pathol J

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Antifungal activity of sulfur-containing salts against the development of carrot cavity spot and potato dry rot

Cited by 30 publications

References 28 publications

Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Evaluation of drying method and pretreatment effects on the nutritional and antioxidant properties of oyster mushroom ( Pleurotus ostreatus )

Suppression of Melanose Caused by Diaporthe citri on Citrus Leaves Pretreated with Bio-sulfur

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