Comparison of cassava, yam and potato dextrose agars as fungal culture media

Weststeijn, G.; Okafor, Nduka

doi:10.1007/bf02000553

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…The yam dextrose agar (YDA) and yam glucose agar (YGA) also showed less mycelial growth as determined by the spore count. Weststeijn and Okafor (1971) reported lower mycelial growth on yam dextrose agar in an in vitro experiment conducted to compare cassava, yam and potato dextrose agar.…”

Section: Discussionmentioning

confidence: 99%

“…Variation in the concentration of media components also played a role in the overall outcome of the formulated media. Cassava dextrose agar, corn meal dextrose agar and Palmyrah tuber medium have been reported to be better media compared to PDA for the cultivation of some fungi (Weststeijn and Okafor, 1971;Adesemoye and Adedire, 2005;Tharmila et al, 2011). In the present study one would rather say that the purple sweet potato dextrose agar and purple sweet potato glucose agar (PPDA and PPGA) can compete favourably with the Irish potato dextrose agar (PDA) as medium for the cultivation of fungi, as optimal performance (spore count) of the formulated media depended on the concentration of the media components.…”

Section: Discussionmentioning

confidence: 99%

“…Their results revealed the growth of all the fungal species to be about the same or sometimes better with the formulated media relative to those on the standard set up, except for Rhodotorula rubra which responded least on all the media. Weststeijn and Okafor (1971) compared cassava and yam as an alternative to potato dextrose agar, in an in vitro experiment at varying temperature conditions (20 and 30°C) the fungi, Phytophthora palmivora, Aspergillus melleus, Thielaviopsis paradoxa, Pestalotiopsis versicolor and Curvularia pallescens showed better mycelial growth on cassava dextrose agar than on potato dextrose agar and yam dextrose agar.…”

Section: Introductionmentioning

confidence: 99%

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Use of starch containing tubers for the formulation of culture media for fungal cultivation

Amadi¹

2012

Afr. J. Microbiol. Res.

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This experiment was performed to test the suitability of other starch containing tubers (sweet potato varieties [purple and whitish], yam and cocoyam varieties [edible and non-edible]) as substitutes for Irish potato in potato dextrose agar (PDA) in varying concentrations (100, 200, 300, and 400 g/L) and alternating between dextrose and glucose in concentration range of 10, 20, and 30 g/L. Potato dextrose agar (PDA) served as the control. Aspergillus niger and Aspergillus carbonarius were used as test organisms. Test organisms were aseptically inoculated into the ten different formulated media including PDA and allowed to grow. Spores were harvested after five days of growth and counted using haemocytometer. The results were subjected to analysis of variance (ANOVA) (P ˂ 0.05). The purple sweet potato variety on an average showed good mycelial growth when compared to other formulated media and sometimes PDA. Purple sweet potato variety can be used as an alternative to Irish potato for fungal growth. However further studies may be required to determine appropriate concentrations and conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of starch containing tubers for the formulation of culture media for fungal cultivation

Amadi¹

2012

Afr. J. Microbiol. Res.

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“…With a syringe of 1 mL, the stock solution was added to the bottle labeled A which contains 9 mL of the normal saline solution to make it up to 10 mL solution. Then, 1 mL of the content of the A bottle was taken and then transferred to the B bottle, and the process was repeated for sample B following serial dilutions (de Farias, Monteiro, Rodrigues, Fernandes, & Pinto, 2010; Weststeijn & Okafor, 1971).…”

Section: Methodsmentioning

confidence: 99%

Release kinetics of fungicidal antimicrobials into packaged foods

Aina

Danyuo

Oparah

et al. 2021

Journal of Food Safety

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This article presents the release kinetics (RK) of a fungicidal antimicrobial agent (AMA), potassium sorbate (PS), that prolongs the shelf life of packaged food. The effects of PS release are explored on peanut and fresh bread to determine the effects of PS on Aspergillus niger (AN) microbe growth. The AN was cultured in a potato dextrose agar (PDA) medium to obtain AMA activity on the film. AMA activity of PS incorporated into cellulose acetate (CA) based film was tested on peanuts and fresh bread for an extended period of time. The RK of PS from the films was obtained by studying the de‐swelling properties of PS loaded film at room temperature (24°C) and at elevated temperature (37°C). The diffusion coefficients of PS released through the film network were obtained to be between 8.32 × 10−10 to 7.3 × 10−7 m2/s. The release exponents (n) of PS from the film occurred by anomalous transport with n‐values ranging from 0.13 to 0.16 at 24°C and 0.5 to 0.89 at 37°C. The average flux released from the CA film was consistent with the percentage PS release from the CA film showing that modeling the effective diffusion of PS from a porous media is feasible. The released PS was potent enough to inhibit the growth of AN for a week then over a period of 2 years. Thereafter, the implications of the results in designing smart food packaging for enhanced food preservation were discussed.

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Role of associative bacterial interaction in the induction of tuber rot incidence in cassava (Manihot esculentaCrantz)

Pillai

Misra

2013

Archives Of Phytopathology And Plant Protection

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Comparison of cassava, yam and potato dextrose agars as fungal culture media

Cited by 5 publications

References 4 publications

Use of starch containing tubers for the formulation of culture media for fungal cultivation

Use of starch containing tubers for the formulation of culture media for fungal cultivation

Release kinetics of fungicidal antimicrobials into packaged foods

Role of associative bacterial interaction in the induction of tuber rot incidence in cassava (Manihot esculentaCrantz)

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