Journal of
Yeast and Fungal Research

  • Abbreviation: J. Yeast Fungal Res.
  • Language: English
  • ISSN: 2141-2413
  • DOI: 10.5897/JYFR
  • Start Year: 2010

JYFR Articles

November 2018

Anticandidosic activity of selected medicinal plants from Côte d’Ivoire

Superficial candidiasis is a real public health problem, especially in immunocompromised people and HIV-infected patients. Due to the toxic handicap and the high cost of antifungal drug treatment, people use medicinal plants, which are relatively more accessible. Medicinal plants are an important source of novel antimicrobial agents. This study aims to determine the in vitro antimicrobial activity of...

Author(s): Henriette Bosson-Vanga, Kpongbo Etienne Angora, Abibatou Konaté, Akoua Valérie Bédia-Tanoh, Sébastien Miézan, Pulchérie Kiki-Barro, Kondo Fulgence Kassi, Vincent Djohan, William Yavo and Hervé Menan,  

October 2018

Susceptibility of Candida species isolated from recurrent vulvovaginal candidiasis to antifungal agents among women at Institut Pasteur of Côte d’Ivoire

Recurrent vulvo-vaginal candidiasis is a major issue in pubescent females because of the fact that it is a source of health discomfort. For a better medical treatment, an analysis of susceptibility of Candida species to antifungal agents is fundamental. Therefore, this study aims to determine the susceptibility of Candida spp. to antifungal agents isolated in recurrent vulvo-vaginal candidiasis. This cross-sectional...

Author(s): Kpongbo Etienne Angora, Vincent Djohan, Valérie A. Ira-Bonouman, Henriette A. Vanga-Bosson, Kondo Fulgence Kassi, Abibatou Konaté, Valérie A. Bedia-Tanoh, Sébastien A. Miezan, Christiane P. Kiki-Barro, Hervé Menan, André Offianan Touré and William Yavo  

September 2018

Optimization of nutritional and environmental conditions for biomass production and sporulation of entomogenous fungus Lecanicillium lecanii CA-1-G using two-stage cultivation system

Some factors on sporulation of Lecanicillium lecanii CA-1-G by one-time-at-a-factor have been studied. These factors include carbon and nitrogen sources, carbon-to-nitrogen ratios, mineral elements and vitamins together with water potentials, temperatures, dark/light cycles and pHs. On the basis of these results, together with “two-step” cultivation and orthogonal method, we optimized the culture conditions...

Author(s): Li Gao  

June 2018

Isolation and characterization of fungi from a hot-spring on the shores of Lake Bogoria, Kenya

Hot springs are aquatic environments with high temperatures. They harbor diverse groups of micro-organisms like fungi that have developed mechanisms to thrive at wide temperature ranges, according to their optimal growth requirements. Fungi are a large group of eukaryotic organisms with worldwide distribution, inhabiting a diverse range of extreme habitats from deserts to hyper saline environments. The fungal diversity...

Author(s): Odilia Atamba Salano, Huxley Mae Makonde, Remmy Wekesa Kasili, Hamadi Iddi Boga  

June 2017

Nanotools for molecular identification two novels Cladosporium cladosporioides species (Cladosporiaceae) collected from tomato phyloplane

Magnetic nanoparticles (MNPs) consisting of magnetite (Fe3O4) are promising as nanodiagnostic tools in plant pathology. Magnetic nanoparticles (MNPs) were produced using hydrothermal protocols. MNPs size diameter and size distribution were characterized by transmission electron microscopy (TEM) and dynamic light scattering (DLS). Fe3O4 nanoparticles are monodispersible and spherical with an average diameter of 82 nm....

Author(s): Mousa A. Alghuthaymi

March 2017

A study on the fungi isolated from the carpeting, walls and Holy Qurans from the Blue Mosque and Little Hagia Sophia Mosque situated in the province of Istanbul

In this study the sampling of microfungus content from the carpeting, walls and Holy Qurans of two different mosques in the province of Istanbul was undertaken and in order to determine quantities. Samples were taken in 2015 during the months of January, April, July and October. The samples were taken with non-agar based sterile swabs and were then taken to the laboratory. Throughout the duration of the study, 17...

Author(s): Özlem Cesuroğlu and Günay Tülay Çolakoğlu

November 2016

Isolation, identification and characterization of yeast species from coffee waste collected from Sidama and Gedio zone

Coffee waste represents the most abundant waste in Ethiopia, this study aims to isolate, identify and characterize yeast from coffee waste in order to utilize in the biotechnological process. 25 merged coffee waste samples were collected from Sidama and Gedio zone. Yeast strain was cultured on yeast peptone dextrose and Biolog universal yeast agar media. Pure yeast cells were suspended in sterile water at 49+ turbidity,...

Author(s): Birhanu Gizaw, Zerihun Tsegaye and Genene Tefera

October 2016

Molecular identification of yeasts associated with raw cow milk from peri-urban farms in Kaduna State, Nigeria

This study aimed to examine the diversity of yeasts associated with bovine mastitis by employing molecular techniques in yeast identification. A total of 300 composite milk samples were collected from 26 peri-urban farms and examined. After culture, 37 (12.3%) fungal isolates were identified using the API 20C AUX. Polymerase chain reaction (PCR) and sequencing of the domains D1 and D2 of the 26S rRNA gene identified...

Author(s): Mbuk E. U., Kwaga J. K. P., Bale J. O. O. and Umoh J. U.

May 2016

Ethnomycology of Termitomyces R. Heim in Nepal

Study on the consumption and uses of edible fungi by selected ethnic tribes/groups in selected geographical regions in Nepal is lacking. This paper highlights the various ways of using Termitomyces spp. in Tarai, Siwalik and Midhill in Nepal. The investigation was conducted before, during and after monsoon, from 2010 to 2012. Data were obtained by interacting with members of the ethnic groups used in this study, as well...

Author(s): Hari Prasad Aryal and Usha Budathoki

April 2016

Examination of Candida albicans strains from South Africa for the production of gliotoxin and other cytotoxic secondary metabolites

Candida species cause superficial mycosis and more serious systemic infections. The virulence factors of Candida are their adherence and hyphae formation ability and the production of hydrolytic enzymes. In addition, they produce secondary metabolites which are also implicated in the pathogenesis. Literature on the production of gliotoxin, one of the metabolites by Candida spp. is controversial. The aim of this study...

Author(s): Tshabalala Nhlanhla, Mrudula Patel and Dutton Michael Francis

March 2016

Isolation frequency and epidemiological characterization of yeast-like fungi and co-infected bacteria isolated from clinical patient

Pathogenic yeast-like fungi and bacteria are found all over the world, and are a frequent cause of invasive disease in immunocompromised hosts. However, there is a paucity of data on pathogenic yeast-like fungi in Korea. In this study, the characterization of pathogenic yeast-like fungi and co-infected bacteria isolated from 715 patients (ranging in age from 29 days to 99 years, with a mean age of 49 years) that were...

Author(s): Park G. N., Kim S. H., Kang H. S., Lee H. R., Jo H. J., Jeoung H. Y., An D. J. and Chang K. S.

February 2016

An improved method to optimize the culture conditions for biomass and sporulation of mycoparasitic fungus Trichoderma viride TV-1

Trichoderma viride, the most promising biocontrol agent is able to control a wide range of plant pathogens. It is one of the most widely used species against plant disease and can improve the plant growth and crop yields. Biomass yields and sporulation of this fungus depends on the culture conditions (culture method), nutritional requirements (carbon and nitrogen source, mineral elements, carbon concentration, carbon to...

Author(s): Gao L.

July 2015

First report of Neurospora on Corylus avellana in natural forest of Iran

Teleomorph stage of the fungus Neurospora udagawae was formed abundantly on the culture media of potato dextrose agar, potato carrot agar and malt extract agar. Perithecia were visible on the culture medium and plant tissues (on the bark of tree) of hazelnut tree (Corylus avellana L.) from specimens of the Northwest forest of Iran. The fungus was identified for the first time in this area. The isolate was examined for...

Author(s): Kamran Rahnama and Roghaieh Habibi

June 2015

Malassezia pachydermatis presence in canine external otitis and dermatopathies

Malassezia pachydermatis is a commensal yeast of the skin and external ear canal of dogs and cats that may become an opportunistic pathogen under some conditions. The aim of this paper was to research the diseases which predispose to the development of opportunistic M. pachydermatis in dogs with external otitis or dermatopathies. The samples were collected by sterile swabs or by the carpet technique. Samples were...

Author(s): Nascente, P. S.⊃, Meinerz, A. R. M⊃., Faria, R. O⊃., Nobre, M. O⊃., Escareño, J. J. H⊃., Mendes, J. F.⊃, Meireles, M. C. A.⊃ and Mello, J.R.B.

May 2015

Evaluation of antifungal activity of snake venoms from the Amazon forest

In recent years, many antimicrobial peptides have been found in the venoms of animals from different sources and have been intensively studied to elucidate their ability to inhibit the growth of potential pathogenic microorganisms. The aim of this study was to characterize and evaluate the in vitro antifungal activity of crude venom from two amazonian snakes: Bothrops atrox and Crotalus durissus ruruima. The molecular...

Author(s): Marcelo dos Santos Neves, Diego Rayan Teixeira de Sousa, Maria do Perpétuo Socorro Borges Carriço Ferreira, Maria Zeli Moreira Frota, João Vicente Braga Souza and Jorge Luis López Lozano

May 2015

Diversity and distribution of species of Ganoderma in south western Cameroon

The genus Ganoderma is one of the most important group of Basidiomycetes due to their medicinal effects and also because they cause decay in a very wide range of tree species all over the world. Opportunistic sampling was used to collect 57 samples of Ganoderma from oil palm and other hosts for identification using comparative morphology and supported by molecular studies of the ITS and mtSSu gene regions. The...

Author(s): Tonjock Rosemary Kinge and Afui Mathias Mih

April 2015

A new ethanol-based macrochemical test combined with a cultural character in the process of identification of the cosmopolitan wood-decayer, Ganoderma resinaceum Boud. (Basidiomycota)

A new macrochemical test using ethanol drops was set up and described here as a safer, quicker and more reliable substitute for the previously used match flame to reveal yellow resin on the pileus of Ganoderma resinaceum, no matter its geographical origin. Four concentrations (30, 70, 90 and 99%) of ethanol (CH3-CH2OH) were tested with distilled water as negative control, as a substitute to the old match flame test in...

Author(s): Dominique Claude MOSSEBO, Rose T. AMBIT, Marie-Claire MACHOUART and Germain KANSCI

November 2014

Evaluation of the effects of the combination of NPK fertilizer, cow dung, humus soil and poultry droppings with sawdust on the number of days to primordia formation, maturity and harvest of Pleurotus ostreatus

This study on the effects of combination of NPK fertilizer, cowdung, humus soil and poultry droppings with sawdust on the number of days to primordia formation, maturity and harvest of P. ostreatus was carried out in the Department of Plant Science and Biotechnology, Imo State University, Owerri. The objectives of the study were to identify the most suitable substrate combination in the determination of the number of...

Author(s): Onuoha C. I., Nwachukwu E. C., Ezeibekwe I. O. and Nwagbara E. C.

November 2014

Bioactive potential of wild edible mushrooms and need for their conservation

The field of natural products and their use in the development of medicinal or other health-related products vis-à-vis their conservation needs special focus. The challenges for fungal conservation are daunting. As nature's recyclers, fungi are like municipal refuse collectors employed to take away our rubbish. We do not notice them until they go on strike. The well-being of fungi is necessary for sustainable...

Author(s): Shazia Ahad, Syed Tanveer and Tauseef Ahmad Malik

October 2014

Morphology and molecular taxonomy of Hymenagaricus mlimaniensis species nov: A new Basidiomycota mushroom from Mlimani main campus, Tanzania

Hymenagaricus mlimaniensis Mwanga & Tibuhwa sp. nov. is described from Dar es Salaam Mlimani Main Campus in the semi protected natural tropical forest left in the Dar es Salaam city. The species superficially looks like Agaricus and its difference to the closest taxa in Hymenagaricus genus is both morphologically and genetically presented. The species is distinctively characterized from the closest H. pallidodiscus...

Author(s): Zuhura Mwanga and Donatha Tibuhwa

September 2014

A preliminary study on nutritional requirements of nematophagous fungus ARF907 for mycelial growth

After studying the effects of carbon sources, nitrogen sources, and mineral elements on the mycelia growth of ARF907 in our lab, this research firstly was concerned with the carbon concentration, carbon to nitrogen ratio on the mycelia growth of this fungus, and the better mycelial yield got with carbon concentration of 6 g l-1 and carbon to nitrogen ratio of 160:1. This paper secondly was concerned with the...

Author(s): Li Gao

August 2014

Cultivation of Pleurotus ostreatus on Grevillea robusta leaves at Dilla University, Ethiopia

Mushrooms consumption has generated interest in man from early civilization. Mushrooms have a unique texture and flavour that are not found in other food crops. In addition, mushrooms cultivating is a promising new industry, with many new businesses developing every year. Cultivation of saprophytic edible mushrooms may be the currently economical biotechnology for lingo-cellulose organic waste recycling that combines...

Author(s): Fekadu Alemu

August 2014

Polycyclic aromatic hydrocarbons and small related molecules: Effects on Schizosaccharomyces pombe morphology measured by imaging flow cytometry

Effects of polycyclic aromatic hydrocarbons and small related molecules on the morphology of fission yeast (Schizosaccharomyces pombe) are described. Polycyclic aromatic hydrocarbons are important environmental pollutants that act as carcinogens via several mechanisms of action. Fission yeast is a useful model organism for revealing the mechanisms by which these molecules affect the cell. None of the molecules studied...

Author(s): Trí Lê, Areeba Qureshi, Joel Heisler, Laura Bryant, Jehan Shah, Tom D. Wolkow and Radha Pyati

July 2014

Clinico-mycological profile of superficial mycosis and the relationship Of ABO blood grouping with superficial mycosis

A total of 456 clinically diagnosed cases (170 male and 286 female) of superficial mycosis was conducted. Highest incidence of cutaneous candidiasis followed by pityriasis versicolor was found. The maximum incidence of superficial mycosis was found in adult females with cutaneous candidiasis then pityriasis versicolor in both sexes (females 83 and males 80). In this study, the most common isolate was Trichophyton...

Author(s): Kareema Amine Alkhafajii and Huda Hadi Alhassnawei

July 2014

Expression of neuronal protein Tau in Candida albicans

Candida albicans is a dimorphic, opportunist fungal pathogen in which cell adhesion and filamentation contribute to host tissue invasiveness and fungal pathogenicity. Morphogenesis in C. albicans which involves yeast to hyphae transition is dependent on temperature, the growth media composition, and is regulated by quorum sensing. In yeasts, filament formation and polarized growth are associated with the actin...

Author(s): Kathleen Van Manen, Sara Guariglia, Alejandra del C. Alonso and Elena C. McCoy

May 2014

Effect of inoculum morphology on production of Nigerloxin by solid state fermentation

Nigerloxin (2-amido-3-hydroxy-6-methoxy-5-methyle-4-(prop-1’enyl) benzoic acid) is a Lipoxygenase and Aldose reductase inhibitor produced by Aspergillus niger MTCC 5116. It is produced only under solid state fermentation (SSF) and the inoculum required for the inhibitor production is developed in submerged condition. As this is a newly discovered enzyme inhibitor with potential commercial success against diabetic...

Author(s): Vasantha, K. Y., Saleem Javeed, Chakradhar, D. and Sattur, A. P.

May 2014

Effect of hot-water treatments in vitro on conidial germination and mycelial growth of Colletotrichum musae isolates

Anthracnose caused by Colletotrichum musae is the most important postharvest disease of banana fruit. The present study was conducted to evaluate the sensitivity of C. musae isolates to hot water treatment in vitro. The effect of hot water treatment (HWT) in vitro was determined by placing conidial suspensions and plugs of agar with mycelia of 12 single spore isolates of C. musae in hot water bath at 45, 50 and 55°C...

Author(s): Setu Bazie, Amare Ayalew and Kebede Woldetsadik

April 2014

Effect of co-culturing of cellulolytic fungal isolates for degradation of lignocellulosic material

This study intended to compare the efficiency of fungal monocultures and co-cultures in the simultaneous delignification and saccharification of kitchen waste and Eichhornia crassipes in order to subject the hydrolysate into biofuel production. Three fungal isolates of genus Trichoderma, Aspergillus, Pycnoporus and an unidentified strain (F113) were grown in mono and co-cultures and the extracted enzymes were...

Author(s): K. Mohanan, R.R. Ratnayake, K. Mathaniga, C. L. Abayasekara and N. Gnanavelrajah

April 2014

The Lap3p aminopeptidase is not solely responsible for bleomycin resistance in Candida albicans

Detoxification of the glycopeptide bleomycin is mediated by bleomycin hydrolase, a cysteine aminopeptidase identified in a variety of organisms. The opportunistic fungal pathogen Candida albicans is known to exhibit increased resistance to bleomycin when compared to other yeast. Presented here is the cloning of the C. albicans Lap3p aminopeptidase, predicted by sequence identity to be the Candida form of bleomycin...

Author(s): Alexandra R. Rogers, Stephanie M. Graves and Fernando Gonzalez

March 2014

Selection of cellulase-producing Trichoderma sp. and optimization of cultivation conditions

The aim of this study was to select the wild microorganism with the capacity to produce cellulases. Microbial sources were rotten grass, leaves and straws. Natural lignocellulose as the sole carbohydrate was used to enrich microorganisms. After isolation, the strains were inoculated into liquid media. Filter paper activity (FPA) was used as an index for selection. Sequencing of 26S rDNA D1/D2 region was used to identify...

Author(s): Tian Haijiao, Qu Chang, Wu Hao, Li Yuhua and Yang Hongyan

March 2014

Laccase production by Galerina sp. and its application in dye decolorization

The laccase producing fungus HC1 was isolated from a sample collected in the Bolivian Amazon region. Analysis of 5.8S and 28S rDNA, and internal transcribed spacer 1 and 2 sequences revealed that isolate HC1 belongs to genus Galerina. High production of laccase was achieved in basal salt medium supplemented with 30 g L-1 glucose, 10 g L-1 yeast extract and 0.01 g L-1 copper sulphate. The enzyme production was further...

Author(s): Laura Mendoza, Victor Ibrahim, Maria Teresa Álvarez, Rajni Hatti-Kaul and Gashaw Mamo

February 2014

Behavior of fungus Rhizoctonia solani under faba bean cotyledons when away from host and the effect of its starvation on aggressiveness

Behavior of Rhizoctonia solani on their hosts was carried out-in many studies when the pathogen was in close proximity with its host. The purpose of this study was focused on the behavior of this fungus on faba bean cotyledons when it was away from the host and the effect of nutritional status on its pathogenicity was also taken into consideration. Observations led to speculation that R. solani feels its host even when...

Author(s): Maha H. Mohamed, Gado E. A. M., El-Deeb S. H. and Mostafa M. H.

February 2014

Identification of micro-organisms associated with jatropha curcas and inhibition by selected natural plants extracts

Studies were carried out to determine the microorganisms associated with Jatropha curcas and the effect of selected botanicals crude extracts (bitter leaf: Vernonia amygdalina and Uziza leaf: Piper guineensis) on the inhibition of these microorganisms. The experiment comprised three extract concentrations 20, 30 and 50% and was carried out in a completely randomized design with six replications. Results show that only...

Author(s): Ihejirika G. O., Obilo O. P., Ojiako J. O., Ofor, M. O., Ibeawuchi I. I., Akalazu N. and Ogbedeh K. O.

October 2013

Additions to ectomycorrhizae associated with Populus ciliata Wall. Ex Royle from Pakistan

Ectomycorrhizal roots sampled from the mycorhizosphere of Populus ciliata from Himalayan moist temperate forests of Pakistan were characterized based on standard methodology for morphological and anatomical characters which include: morphology of ectomycorrhizal system, structure of mantle layers in plain view, structure of rhizomorphs, shape of cystidia and features of emanating elements. Two...

Author(s): Samina Sarwar, Sana Jabeen and Abdul Nasir Khalid

October 2013

Cultivation of Pleurotus ostreatus mushrooms on Coffea arabica and Ficus sycomorus leaves in Dilla University, Ethiopia

Coffea arabica and Ficus sycomorus leaves were assessed for supporting growth of Pleurotus ostreatus. Comparatively, sholla leaves were highly supportive and their fruiting bodies appeared late, while coffee leaves were also supportive and their fruiting bodies appeared early. Results of the cultivation of Pleurotus on coffee and sholla leaves showed that they have promising effect for...

Author(s): Fekadu Alemu

September 2013

Role of some micromycetes in biosorption of heavy metals in different polluted water samples

In this study, heavy metal biosorption potential of indigenous micromycetes was determined. Water samples were collected from different waste water points, chemical industry and tanneries effluents. Indigenous mycoflora was isolated on 2% MEA medium and purified for biomass production. Selected water samples were exposed to UV radiation to kill microbial life in them. Isolated biomass was added to respective water...

Author(s): Syeda Bint E. Zahira and Abdul Nasir Khalid

September 2013

Comparative profile of paddy straw pretreated with standard and isolated lignocellulolytic fungal cultures

The ligno-cellulosic biomass is the most abundant and also the most renewable biomaterial on earth. The development of alternative energy technology such as bioconversion of biomass is critically important because of the rising prices of crude oil, security issues regarding the oil supply and air pollution. Many microorganisms in nature are able to attack and degrade lignin, thus making access to cellulose easy. Such...

Author(s): Nidhi Sahni and Urmila Gupta Phutela

August 2013

An approach to etiology, diagnosis and management of different types of candidiasis

Candida species are the most common cause of opportunistic fungal infection worldwide.Candida is the major fungal pathogen of humans, causing diseases ranging from superficial mucosal infections to disseminated, systemic infections that are often life threatening. A striking feature of its pathogenicity is ability to grow in yeast, pseudohyphal and hyphal forms. The hyphal form has an important role in causing...

Author(s): Parveen Surain Dabas

August 2013

Isolation and physiological characterization of indigenous yeasts from some Algerian agricultural and dairy products

The purpose of this study was to isolate yeasts that may express original characteristics notably in terms of flavour from traditional Algerian agricultural and dairy products. A total of eighteen yeast isolates were recovered from dates, melons and gherkins, and from milk of camel, goat, sheep and cow. Molecular taxonomy based on the sequences of the D1/D2 domain of the 26S ribosomal RNA gene, grouped these isolates...

Author(s): Meriem Amina Rezki, Laurent Benbadis, Gustavo  DeBillerbeck, Zoubida Benbayerand Jean Marie François

July 2013

Comparative study on solubilization of tri-calcium phosphate (TCP) by phosphate solubilizing fungi (PSF) isolated from Nsukka pepper plant rhizosphere and root free soil

Phosphate solubilizing fungi (PSF) possessing the ability to solubilize insoluble phosphate was isolated from the rhizospheric soil of Nsukka pepper plant. Twelve (12) fungal strains were isolated from both root-free soil (non-rhizosphere) and rhizosphere of Nsukka pepper plant. Of the 12 fungi isolated, 6 strains were from Nsukka pepper plant rhizosphere whereas the other six were from root- free soil. PF...

Author(s): Onyia, Chiadikobi Ejikeme and Anyanwu, Chukwudi Uzoma

July 2013

Aspergillus niger-specific ribonucleic acid extraction method

Extraction of high quality RNA from Aspergillus niger mycelia, a tissue very rich in ribonucleases was achieved using a protocol involving the use of TRIZOL reagent and the ribonuclease inhibitor (RNaseOUT). RNA was successfully isolated using this protocol that involved addition of RNaseOUT at the initial homogenizing step and the final dilution/ solubilisation steps of the RNA extraction. A sharply...

Author(s): Abdullahi Balarabe Sallau, Fiona Henriquez, Andrew Jonathan Nok, Sani Ibrahim, Caroline Sommerville and Craig Roberts

June 2013

Isolation and characterization of yeast strains from local food crops

Isolation and identification of yeast from Manihot esculenta, Zea mays, Cola acuminata andSorghum bicolor was done using the spread plate technique. Morphological, cultural, physiological and molecular characterizations were carried out resulting in determination of the species. Four isolates belonging to different genera which include Pichia, Kluyveromyces,...

Author(s): Abosede Margaret Ebabhi, Adedotun Adeyinka Adekunle, Wahab Oluwanisola Okunowo and Akinniyi Adediran Osuntoki

June 2013

The effects of culture parameters on the conidial germination and yields of Ophiocordyceps sinensis

Ophiocordyceps sinensis is an insect-born fungus with various biological and pharmacological activities. Artificial cultivation of the fungus-insect complex with fruiting body is not successful for the market mainly due to the lack of optimal conditions for fungus-insect interaction. Mass production of the pathogenic conidia as fungal inocula for effective insect infection is one of the critical steps. In...

Author(s): Caiying Mei, Yi Zhang, Xiongmin Mao, Keqing Jiang, Li Cao, Xun Yan and Richou Han

May 2013

Mycotoxicological studies of an Aspergillus oryzae strain

The safety of Aspergillus oryzae used in industrial fermentations of food-grade products has long been recognized. However, production of fungal toxic secondary metabolites is strain-specific and environment-dependent. For these reasons, the present study aimed to conduct a mycotoxicological study of the strain H/6.28.1 of A. oryzae (from the collection of the Cuban Institute of Sugar Cane...

Author(s): A. Sosa, E. Kobashigawa, J. Galindo, R. Bocourt, C. H. Corassin and C. A. F. Oliveira

May 2013

Brewer’s yeast (Saccharamyces cervisiae) has hypolipidemic effect in hyperlipidemic model

The yeast has been used for food since ancient time, brewing beer, wine and other alcoholic drinks and in baking industry to expand or to raise dough. It is relatively inexpensive food stuff that contains many kinds of beneficial nutrients [vitamins, minerals, nucleic acid, glutathione, amino acids etc]. In addition brewer's yeast is commonly known as food supplement and traditional bowel movement...

Author(s): Aisha Mohamed Alfitori, Abubaker Bashir and Ahmed Fathi Bahriz

March 2013

Effect of environmental conditions on the growth of Cryptosporiopsis spp. causing leaf and nut blight on cashew (Anacardium occidentale Linn.)

A new disease (cashew leaf and nut blight) in Tanzania caused by a fungus related to the genus Cryptosporiopsis was identified in 2006. The present work investigated the effects of environmental factors on the growth of Cryptosporiopsis spp. causing blight on cashew. The mycelial growth, colony character and sporulation pattern of 10 fungal isolates, grown on seven different culture media...

Author(s): Dominic Menge,, Martha Makobe, Shamte Shomari and Andreas. V. Tiedemann

March 2013

In vitro antifungal effects of Fumaria vaillantii Loisel. essential oil on Aspergillus flavus

      In order to identify the chemical composition of essential oil of Fumaria vaillantii, the leaves with young branches of this plant which grows in a village in Kerman Province at full flowering stage in May 2012 were collected. The sample was cleaned and then dried in the shade, and essential oil hydrodistillation method was performed. The main oil content from the plant of F. vaillantii was 0.25%...

Author(s): M. Moghtader

February 2013

Isolation of Aspergillus niger from three varieties of Bambara nuts for simultaneous production of phytase and tannase

The aim of this work was to isolate strain of Aspergillus niger for simultaneous production of phytase and tannase enzymes. In this study, A. niger strains were isolated from Bambara nuts (Vigna subterranea) of three different color seed coats. Growth of colonies in plates with tannic acid and phytic acid sodium salt-containing media indicate their ability to synthesize both enzymes. The strain...

Author(s): H. V. Difo, E. Onyike, D. A. Ameh, G. C. Njoku and U. S. Ndidi

February 2013

Antagonistic confrontation of Trichoderma spp against fruit rot pathogens on Sapodilla (Manilkara zapota L.)

Antagonistic potentials of five Trichoderma species that is Trichoderma viride, Trichoderma harzianum, Trichoderma koningii, Trichoderma pseudokoningii and Trichoderma virens were tested against fruit rots pathogens of sapodilla (Manilkara zapota L.) under laboratoryconditions. Dual culture experiment of tested pathogens and Trichoderma spp revealed...

Author(s): U. N. Bhale, P. M. Wagh and J. N. Rajkonda

December 2012

Yeasts in marine and estuarine environments

Yeasts and other fungi are prevalent in marine and estuarine ecosystems where they play an important role in the food web. Marine yeasts are unique in performing fermentations under high salt concentrations. The mechanism underlying the high salt tolerance involves the ability to accumulate high concentrations of sodium without becoming intoxicated, and the exclusion of excessive sodium from the cytoplasm. Overall, the...

Author(s): Kathiresan Kandasamy, Nabeel M. Alikunhi and Manivannan Subramanian

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