General Characteristics of Molds
Molds are very common organisms that grow on food materials to spoil the foods and can be easily be identified.
What are Molds
Molds are one type of micro organisms and they grow on food materials like bread, fruits, vegtables, jam/jelly etc. They spoil the foods and make them unfit to eat. But molds are also useful in preparation of some foods like cheese and some oriental foods. Molds are certain multicellular, filamentous fungi whose growth can be easily recognised by it's cottony appearance.
Morphology means form and structure of molds is determined by a microscope. The molds consist of a mass of filaments called Hyphae and mass of these Hyphae is known as Mycelium. Hyphae may be classified as vegetative (growing part) or fertile (production/reproduction) part. The hyphae of most molds are clear but some are dark or smoky.
By the microscopic examination, gnera of molds can be identified by the characteristics seen. Molds are divided into Septate (with cross walls) and Non Septate (without cross walls).
Reproduction of molds are chiefly by asexual spores. The molds which form sexual spores are termed as perfect. The 'Fungi Imperfecti' (Septate) have only asexual spore. The Non Septate perfect mold are Oomycetes and Zygomycetes, The Septate perfect molds are Ascomycetes and Basidiomycetes.
Some molds look velvety on the upper surface, some look dry and powdery, and some wet or gelatinous. Some molds are loose and fluffy and some are compact. The appearance of the molds indicates its genus.
Temperature requirement - Most molds grow well at ordinary temperature. A number of molds grow well at refrigeration temperatures. A few can grow at a high temperature.
Moisture requirement - Molds require less moisture to grow than yeast and bacteria. If dried food has a moisture content below 14 to 15%, it will prevent or delay mold growth.
Oxygen Requirement - Molds are aerobic, so they require oxygen for their growth.
Economic Importance of Fungi
Origin and Phylogeny of Fungi
Read related articles:
Did you like this resource? Share it with your friends and show your love!
Responses to "General Characteristics of Molds"
No responses found. Be the first to respond...
Notify me by email when others post comments to this article.
Do not include your name, "with regards" etc in the comment. Write detailed comment, relevant to the topic.
No HTML formatting and links to other web sites are allowed.
This is a strictly moderated site. Absolutely no spam allowed.
to fill automatically.
(Will not be published, but
to validate comment)
Type the numbers and letters shown on the left.
Subscribe to Email
Get Jobs by Email
Forum posts by Email
Articles by Email
Awards & Gifts
Last 7 Days
N K Ravishankar
ISC Technologies, Kochi - India. © All Rights Reserved.