INTRODUCTION Isolation of Aspergillus niger from garden soil for the production of amylase enzyme and effect of various parameters on enzyme‚ production is the main aim of this study. Enzymes are protein catalysts synthesized by living systems and are important in synthetic as well as degradative process. Amylases are starch degradative enzymes that catalyze the hydrolysis of internal a-1‚ 4-0-glycosidic bonds in polysaccharides such as starch in to simple sugar (glucose and maltose). It is produced
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vegetables increase. For example‚ carrot‚ tomato and chilli are most demand among Malaysian adult. However‚ vegetables are susceptible to the microbial infection due to its pH that closer to the neutral pH. Generally‚ Alternaria‚ Fusarium‚ Penicillium‚ Aspergillus‚ Geotrichum and Botrytis are common post-harvest fungi for vegetables (Splittstoesser‚ 1987; Adaskaveg et al.‚ 2002). These fungi can get into the vegetables through surface injuries either mechanical‚ chemicals or physiological injury. Mechanical
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different types‚ shapes and colours. The most common bread molds are Penicillium and Aspergillus family. Penicillium and Aspergillus molds usually appear to be similar with spherical shape‚ also green and grey in colour‚ but both are different. Aspergillus mold have fine hairs that contain large balloons with spores inside. Some molds cause allergic reactions and respiratory problems. And a few molds such as Aspergillus produce mycotoxins‚ poisonous substances that can make us sick. The molds can be
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producer and identified as Aspergillus fumigatus and Aspergillus terreus. Under solid substrate culture condition Aspergillus fumigatus was screened for phytase production on agricultural by-products. The results showed that wheat bran with sugarcane molasses was the best substrate for production of phytase. Phytase purified by non chromatography method‚ the purified enzyme has an apparent molecular weight 64kDa. Keywords: Phytase‚ Aspergillus fumigatus and Aspergillus terreus. INTRODUCTION Phytase
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Jaren Urbina Post Harvesting Onion Basic Storage & Handling Tips for Dry Bulb Onions: Always handle onions with care. Do not drop onions as this often causes bruising and internal decay. Bagged or boxed onions should be stored at least one foot away from walls and other pallets to allow proper air movement. Keep stacks of bags or boxes at five feet or less. Store onions in a cool‚ dry‚ well-ventilated area. Maintain storage temperature of 45-55°F. Do not wrap onions in plastic or store
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J2o7urnal of Swine Health and Production — Volume 18‚ Number 1 Journal of Swine Health and Production — January and February 201207 Feed additives for swine: Fact sheets – fl avors and mold inhibitors‚ mycotoxin binders‚ and antioxidants Jay Y. Jacela‚ DVM; Joel M. DeRouchey‚ PhD; Mike D. Tokach‚ PhD; Robert D. Goodband‚ PhD; Jim L. Nelssen‚ PhD; David G. Renter‚ DVM‚ PhD; Steve S. Dritz‚ DVM‚ PhD Peer reviewed Practice tip This is the third in a series of peer-reviewed practice tip articles
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Invasive aspergillosis is an infection caused by the fungus of the genus Aspergillus. The fungus immunocompromised individuals due to weakness in defense mechanisms. While it has been largely accepted that Aspergillus species is recognized by cellular receptors and attacked by neutrophils‚ the radiological and macroscopic findings linking infection with neutropenia remain unconfirmed. However‚ the fungus survive these attacks and germinate causing the disease. Histopathological changes occurring
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which in turn produces the mycotoxins in different types of feeds and their ingredients‚ both in field and during storage. Aflatoxins are the commonest amongst mycotoxins and are secondry metabolites produced by some strains of toxigenic fungi viz. Aspergillus Flavous and Aspergilleis parasiticus. These toxic metabolites produced by moulds naturally in cereals and animal feed
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MYCOTOXINS [THE ENVIROMENTAL & ECONOMIC EFFECTS] OUTLINE INTRODUCTION: * What are mycotoxins? * “Mycotoxins (ie toxins produced by molds) are fungal metabolites that can contaminate foods and feeds and cause toxic effects in higher organisms that consume the contaminated commodities. Therefore‚ mycotoxin contamination of foods and feeds results is a serious food safety issue and affects the competitiveness of US agriculture in both domestic and export markets” (Cleveland T et al
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Aspergillus was first catalogued in 1729 by the Italian priest and biologist Pier Antonio Micheli. Gingivitis-Gingivitis ("inflammation of the gum tissue") is a non-destructive disease that occurs around the teeth.The most common form of gingivitis‚ and the
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