https://repositorio.unb.br/bitstream/10482/6389/1/ARTIGO_ApplicationMicrobialAmylase.pdf

Application of microbial α-amylase in industry - A review

Veterinary Clinical Pathology.

Production of a thermostable α-amylase from Bacillus sp. PS-7 by solid state fermentation and its synergistic use in the hydrolysis of malt starch for alcohol production

Comprehensive assessment of 2G bioethanol production.

Cassava: Nutrient composition and nutritive value in poultry diets.

Studies on antimicrobial activity of water, methanol and ethanol extracts of the stem bark of  Enantia chlorantha , was carried out by the agar ditch diffusion and tube dilution methods. The clinical isolates used include; Staphylococcus aureus, Streptococcus pyogenes, Shigella sonnei, Proteus mirabilis, Klebsiella pneumoniae, Salmonella typhi, Pseudomonas aeruginosa, Aspergillus niger, and Candida albicans . The isolates were obtained from the Department of Medical microbiology and Parasitology of the University of Ilorin Teaching Hospital. Crude extracts of all solvents used inhibited the growth of all the isolates tested, except Pseudomonas aeruginosa . The Minimum Inhibitory Concentration (MIC) ranged between 25mg/ml to 150mg/ml depending on isolate and extracting solvent. Ethanolic extracts showed greater antimicrobial activity than the other two solvents. The killing rate of the Minimum Bactericidal Concentration (MBC) of the ethanolic extract on S. aureus and  P.aeruginosa was 2½hr, and 3hr respectively. Temperature stability study showed that the extracts are stable and active over a temperature range of 30 to121 o C. Key words : Enantia chlorantha , antimicrobial property, plant extract

/pdf/effect-of-stem-bark-extracts-of-enantia-chloranta-on-some-1oeag9jsq1.pdf

Effect of Stem Bark Extracts of Enantia chloranta on Some Clinical isolates

Aspergillus flavus andAspergillus niger produce extracellular amylase into the culture medium when grown on basal medium containing 2% (w/v) soluble starch or cassava peel as the sole carbon source. On soluble tarch the highest amylase activities were 1.6 and 5.2 mg of starch hydrolyzed/min per mg protein forA. flavus andA. niger, respectively. When grown on cassava peel, the highest amylase activity in the culture filtrate ofA. flavus was 170-times higher than that on soluble starch, while that ofA. niger was 16-times higher. The mycelial dry weight for both organisms was not significantly affected by the carbon sources. Maximum enzyme activity was obtained at the growth temperature of 29.0±1°C and pH 7 for both organisms. It is concluded that cassava peel might be a better substrate for the production of amylase byA. flavus andA. niger than commercial soluble starch.

Amylase synthesis in Aspergillus flavus and Aspergillus niger grown on cassava peel

The use of yam peel for growth of locally isolated Aspergillus niger and amylase production

The bacteriological quality of some Nigerian currencies in circulation was investigated in terms of total bacterial count and kinds of bacterial species present. The notes had high bacterial counts: ranging from 1.5×104 to 4.2×104 cfu/cm2; there was no significant difference in the bacterial counts. Eight bacterial species were isolated: Escherichia coli, Staphylococcus aureus, Proteus mirabilis, Streptococcus faecalis, Klebsiella sp, Pseudomonas aeroginosa, Bacillus subtilis and Salmonellasp. Salmonella sp was the least prevalent of the bacterial isolates (2%) while S. aureus was the most prevalent (28%). Antibiotic susceptibility pattern suggests that some of the isolates (S. aureus and P. mirabilis) had potentials for multiple antibiotic resistances. The health implications of the organisms encountered are discussed and suggestions are provided to enable safe handling of the notes.
		
			 
		
			Key words: Currencies, naira notes, antibiotic resistance.

Bacteriological quality of some Nigerian currencies in circulation

Corn cob is a major component of agricultural and domestic waste in many parts of the world. It is composed mainly of cellulose which can be converted to energy in form of bioethanol as an efficient and effective means of waste management. Production of cellulolytic enzymes were induced in the fungi Aspergillus niger and Penicillium decumbens by growing them in mineral salt medium containing alkali pre-treated and untreated corn cobs. The cellulases were characterized and partially purified. Alkali pre-treated corn cobs were hydrolysed with the partially purified cellulases and the product of hydrolysis was fermented using the yeast saccharomyces cerevisae to ethanol. Cellulases of A. niger produced higher endoglucanase and exoglucanase activity (0.1698 IU ml(-1) and 0.0461 FPU ml(-1)) compared to that produced by P. decumbens (0.1111 IU ml(-1) and 0.153 FPU ml(-1)). Alkali pre-treated corn cob hydrolysed by cellulases of A. niger yielded 7.63 mg ml(-1) sugar which produced 2.67 % (v/v) ethanol on fermentation. Ethanol yield of the hydrolysates of corn cob by cellulases of P. decumbens was much lower at 0.56 % (v/v). Alkali pre-treated corn cob, hydrolysed with cellulases of A. niger is established as suitable feedstock for bioethanol production.

https://www.excli.de/vol11/saliu08_2012/saliu_15082012_proof.pdf

Alhassan Sani

Papers

Effect of Stem Bark Extracts of Enantia chloranta on Some Clinical isolates

Amylase synthesis in Aspergillus flavus and Aspergillus niger grown on cassava peel

The use of yam peel for growth of locally isolated Aspergillus niger and amylase production

Bacteriological quality of some Nigerian currencies in circulation

Bioethanol potentials of corn cob hydrolysed using cellulases of Aspergillus niger and Penicillium decumbens.