Influence of Inoculum Preparation and Volume on Growth of Mycotoxigenic Molds

$37.00 plus tax (Refund Policy)

Buy Article:

Abstract:

The influence of the volume and the aw of the inoculum, adjusted or not with glycerol to the aw of the medium, on growth of mycotoxigenic species of fungi was determined for Aspergillus flavus, Aspergillus ochraceus, Penicillium citrinum, Penicillium viridicatum, Fusarium tricinctum and Microdochium nivale.

Statistical analysis of the data was based on the application of multivariate techniques.

It was seen that at constant volumes (10 μl), P. viridicatum, A. ochraceus andM. nivale show no significant growth differences whether or not the aw of the inoculum is adjusted; but significant differences were observed with A. flavus, P. citrinum and F. tricinctum. Moreover, significant differences in growth between adjusted and unadjusted aw levels are also present when there are different inoculum volumes for A. flavus and P. citrinum. Thus, it is appropriate to adjust the inoculum to the same aw level as that of the medium or the food to be considered. In all cases, where significant differences were present, greater colony diameters were observed when the aw was adjusted.

With the same inoculum preparation, different inoculum volumes also affect fungus growth, producing greater colony diameters with increments in the volume.

Keywords: INOCULUM VOLUME; MYCOTOXIGENIC FUNGI; WATER ACTIVITY

Document Type: Research Article

Affiliations: 1: Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Republica Argentina; Consejo Nacional de Investigaciones Cientíjicas y Técnicas; Facultad de Ingeniería 2: Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Republica Argentina; Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Universidad Nacional de Luján 3: Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Republica Argentina; Consejo Nacional de Investigaciones Cientíjicas y Técnicas; Facultad de Ciencias Exactas y Naturales de fa Universidad de Buenos Aires 4: Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Republica Argentina; Facultad de Ciencias Exactas y Naturales de fa Universidad de Buenos Aires 5: Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Republica Argentina; Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Facultad de Ciencias Exactas y Naturales de fa Universidad de Buenos Aires

Publication date: April 1, 1995

More about this publication?
  • IAFP Members with personal subscriptions to JFP Online: To access full-text JFP or JMFT articles, you must sign-in in the upper-right corner using your Ingenta sign-in details (your IAFP Member Login does not apply to this website).

    The Journal of Food Protection (JFP) is a refereed monthly publication. Each issue contains scientific research and authoritative review articles reporting on a variety of topics in food science pertaining to food safety and quality. The Journal is internationally recognized as the leading publication in the field of food microbiology with a readership exceeding 11,000 scientists from 70 countries. The Journal of Food Protection is indexed in Index Medicus, Current Contents, BIOSIS, PubMed, Medline, and many others.

    Print and online subscriptions are available to IAFP Members and institutional subscribers. IAFP Members with a subscription to JFP Online will have access to all available JFP and JMFT content. Online visitors who are not IAFP Members or journal subscribers will be charged on a pay-per-view basis. Membership and subscription information is available at www.foodprotection.org.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more