نتایج جستجو برای: p niger 8986

تعداد نتایج: 1279751  

Journal: :Microbiology 2006
Xiao-Lian Yuan Coenie Goosen Harrie Kools Marc J E C van der Maarel Cees A M J J van den Hondel Lubbert Dijkhuizen Arthur F J Ram

As a soil fungus, Aspergillus niger can metabolize a wide variety of carbon sources, employing sets of enzymes able to degrade plant-derived polysaccharides. In this study the genome sequence of A. niger strain CBS 513.88 was surveyed, to analyse the gene/enzyme network involved in utilization of the plant storage polymer inulin, and of sucrose, the substrate for inulin synthesis in plants. In ...

Journal: :Journal of global health 2016
Khaled Bensaïd Asma Gali Yaroh Henry D Kalter Alain K Koffi Agbessi Amouzou Abdou Maina Narjis Kazmi

Niger, one of the poorest countries in the world, recently used for the first time the integrated verbal and social autopsy (VASA) tool to assess the biological causes and social and health system determinants of neonatal and child deaths. These notes summarize the Nigerien experience in the use of this new tool, the steps taken for high level engagement of the Niger government and stakeholders...

Journal: :Revista iberoamericana de micologia 2014
Carla L Barberis María F Landa Mauricio G Barberis Guillermo Giaj-Merlera Ana M Dalcero Carina E Magnoli

BACKGROUND In the last years, food grade antioxidants are used safely as an alternative to traditional fungicides to control fungal growth in several food and agricultural products. AIMS In this work, the effect of butylated hydroxyanisole (BHA) and propyl paraben (PP) on two hydrolytic enzyme activity (β-d-glucosidase and α-d-galactosidase) by Aspergillus section Nigri species under differen...

2015
Orish Ebere Orisakwe Zelinjo Nkeiruka Igweze Kenneth Obinna Okolo Nnaemeka Arinze Udowelle

Recently we investigated the heavy metal hazards of Nigerian smokeless tobacco products 'STP'. Since 'STPs' are advocated as safer alternatives to cigarets, the public health implication should be ascertained. This is a risk assessment of poly aromatic hydrocarbons 'PAHs' in 'STPs' used in Nigeria. Thirty 'STPs' from different parts (South East, South West, Niger Delta and North Central) of Nig...

2012

A. niger XP isolated from Vietnam produces very low amount of acidic phytase with optimal pH at 2.5 and 5.5. The phytase production of this strain was successfully improved through gene cloning and expression. A 1.4 kb DNA fragment containing the coding region of the phyA gene was amplified by PCR and inserted into the expression vector pPICZαA with a signal peptide αfactor, under the control o...

2007
Yaw A. Twumasi Edmund C. Merem

In the Sub-Saharan African region of the River Niger Basin, where none of the major rivers is fully contained within the borders of a single nation, riverine ecosystem health monitoring is essential for survival. Even the globally proclaimed goals of sustainability and environmental security in the region are unattainable without using geospatial technologies of remote sensing and Geographic In...

ژورنال: سلامت و محیط زیست 2014
شکوهی, رضا, عزیزی, صلاح , غیاثیان, سید امیر , فردمال, جواد,

Background and Objectives: Pentachlorophenol (PCP) is an organic compound and phenolic derivatives categorized as priority pollutants that have harmful effects on humans, animals, and plants in low concentrations. Therefore, PCP removal from water and wastewater is very important. The aim of this study was to assess the efficiency of A. niger fungus biomass in PCP absorption. Materials and Meth...

Journal: :Journal of agricultural and food chemistry 2005
Tao Wu Svetlana Zivanovic F Ann Draughon William S Conway Carl E Sams

Chitinous material was extracted from mycelia of Aspergillus niger and Mucor rouxii grown in yeast peptone dextrose broth for 15 and 21 days, respectively. The extracted material was characterized for purity, degree of acetylation, and crystallinity and tested for antibacterial and eliciting properties. The maximum glucosamine level determined in the mycelium of A. niger was 11.10% dw and in th...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2006
Dariusz Stepniak Liesbeth Spaenij-Dekking Cristina Mitea Martine Moester Arnoud de Ru Renee Baak-Pablo Peter van Veelen Luppo Edens Frits Koning

Celiac disease is a T cell-driven intolerance to wheat gluten. The gluten-derived T cell epitopes are proline-rich and thereby highly resistant to proteolytic degradation within the gastrointestinal tract. Oral supplementation with prolyl oligopeptidases has therefore been proposed as a potential therapeutic approach. The enzymes studied, however, have limitations as they are irreversibly inact...

Journal: :international journal of agricultural management and development 2013
nsikak-abasi a. etim agnes u. akpan uduakobong a. brown

poverty is the most serious threat to natural resources and the environment and most of the poor are rural-based who engage in various agricultural activities. land is a critical asset for the rural poor and lacking means to appropriately intensify agriculture which compels the poor to either overuse or misuse this natural resource base to meet basic needs. this study presents empirical relatio...

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