Thermophilic Fungi associated with Nigerian Oil Palm Produce

Eggins, H. O. W.; Coursey, D. G.

doi:10.1038/2031083a0

Cited by 47 publications

(11 citation statements)

References 3 publications

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“…Thermophilic fungi have been isolated from stored agricultural products such as barley (Flannigan, 1969;Mulinge and Apinis, 1969), maize (Okafor, 1966) and oil-palm kernels (Eggins and Coursey, 1964;Apinis and Eggins, 1966;Oso, 1974). They have also been found in retting guayule (Cooney and Emerson, 1964), tobacco (English et al, 1967;Fletcher et al, 1967;Lucas, 1968, 1969), mushroom compost (Fergus, 1964), wheat-straw compost (Chang, 1967;Chang and Hudson, 1967) and in industrial wood-chip piles at the paper mill (Tansey, 1971;Smith and Ofosu-Asiedu, 1972).…”

Section: Resultsmentioning

confidence: 99%

Mycelial Growth and Amylase Production by Talaromyces emersonii

Oso

1979

Mycologia

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Section: Resultsmentioning

confidence: 99%

Mycelial Growth and Amylase Production by Talaromyces emersonii

Oso

1979

Mycologia

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“…One of the few natural habitats from which T. ernersonii has been isolated is the oil palm fruit which is of great economic importance to Nigeria (Eggins and Coursey 1964;Oso 19740). Palm oil and palm kernel oil consist largely of glycerides and when they undergo biodeterioration in storage, the glycerides are hydrolysed into free fatty acids as well as mono-and di-glycerides and glycerol.…”

Section: Discussionmentioning

confidence: 99%

“…The natural habitats of thermophilic fungi include, among others, stored agricultural products, such as maize, barley, and oil palm kernels (Okafor 1966;Flannigan 1969; Mulinge and Apinis 1969;Eggins and Coursey 1964;Apinis and Eggins 1966;Oso 1974a), composts (Fergus 1964;Chang 1967; Chang and Hudson 1967), and piles of organic matter (Cooney and Emerson 1964;Tansey 1971;Smith and Ofosu-Asiedu 1972). These materials contain cellulose, hemicelluloses, starch, oils, and other complex organic compounds.…”

Section: Introductionmentioning

confidence: 99%

The lipase activity of Talaromyces emersonii

Oso¹

1978

Can. J. Bot.

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Studies were carried out on the ability of Talaromyces emersonii Stolk to produce extracellular lipase in stationary liquid medium under various conditions. The best temperatures for lipase synthesis and activity were 40–45 °C, and at all the temperatures (37–55 °C) tested for lipase production, maximum enzyme was produced 8 days after incubation. Lipase synthesis was induced when various carbohydrates were used as carbon sources both in the presence and absence of yeast extract. The significance of lipase production in relation to the natural habitat is discussed.

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“…These products have a high osmotic pressure, consequently, moisture levels above the acceptable limits ( 2 12%) are often recorded [l]. From previous reports [3,5,101, moisture levels as high as 45% have been recorded on Nigerian palm produce. Several species of fungi have consequently been obtained from these products during storage.…”

Section: Introductionmentioning

confidence: 99%

The activities of partially purified acid proteases of thermotolerant Aspergillus species from post harvest oil palm kernels

Ogundero

1989

Nahrung

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The production and activities of extracellular acid proteases of Aspergiliusjmigutus Fres. and Aspergillus niduluns (Eidum) Win1 were studied. Both species grew readily on the palm kernel oil-peptone medium resulting in peak protease production and biomass accumulation occurring within the incubation period of 10 dys. Partial purification of the crude protease from the culture filtrate of A . fwnigutus on DEAE-cellulose and on Sephadex G-200 gave a single active protease peak being eluted with thF protein front ?t A,,,.A 47-fold purification was achieved with a recovery value of 2.1 %. The specific activity (22.4 U/mg protein) of A . fGmigatus protease was much higher than that of A . niduiuns protease (11.4 U/mg protein). Also, A . fumigatus protease was most active at 40 "C and pH 5.8 on casein and on gelatin. A . niduluns protease acted best at 45 "C and pH 5.4 on similar substrate. The proteases from both fungi showed no exoprotease activity when used to hydrolyze leucine amide, hippuryl phenylalanine and hippuryl arginine.

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Thermophilic Fungi associated with Nigerian Oil Palm Produce

Cited by 47 publications

References 3 publications

Mycelial Growth and Amylase Production by Talaromyces emersonii

Mycelial Growth and Amylase Production by Talaromyces emersonii

The lipase activity of Talaromyces emersonii

The activities of partially purified acid proteases of thermotolerant Aspergillus species from post harvest oil palm kernels

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