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UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE

This unit covers the study of fungi and viruses including their morphology, classification, reproduction, and cultivation. It discusses how fungi are classified based on cell morphology into yeast-like fungi, molds, yeast and dimorphic fungi. It also covers the classification of fungi into four main categories based on their spore formation. The unit further discusses the introduction, morphology and classification of viruses. It describes different methods for evaluating disinfectants and factors influencing disinfection. Finally, it discusses sterility testing of products as per BP and USP standards and lists assignments on related topics that are due on December 9th.

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UNIT 3 Study of morphology, classification, reproduction/replication and cultivation of Fungi and Viruses
INTRODUCTION TO FUNGI • It is a group of eukaryotic micro-organism • All fungi are aerobic in nature (except some yeast which are facultative anaerobic) • They divide asexually, sexually or by both processes • They may be unicellular or multicellular • The branch of science which deals with the study of fungi is called Mycology
CLASSIFICATION OF FUNGI 1. Depending on the cell morphology, fungi can be divided into 4 classes: Dimorphic fungi Yeast like fungi Yeast Molds
CLASSIFICATION OF FUNGI Deuteromycetes Basidiomycetes Ascomycetes Zygomycetes 2. Depending on their spore formation:
Depending on the cell morphology, fungi are divided as:
1. MOULDS • Fungi which form mycelia or hyphae are called molds/filamentous fungi • It contains multiple identical nuclei • They are strictly aerobic and optimum temperature for growth is 22 ºC -28 ºC • Reproduce through small spores by sexual or asexual mode form
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INTRODUCTION TO VIRUS
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DISINFECTION
Classification and Mode of Action of Disinfectants SAME AS UNIT II Chemical Sterilization Techniques (Refer Slides 68-78 from UNIT II ppt)
Factors influencing disinfection 1. Concentration of disinfectant 2. Temperature 3. Time of exposure/contact 4. pH of environment 5. Formulation of Disinfectant 6. Chemical structure of disinfectant 7. Type and no. of micro-organisms present 8. Interfering substances in the environment
Evaluation of Disinfectants • The common methods used for the evaluation of disinfectant are as follows: 1. Tube Dilution Method 2. Agar Plate Method 3. Filter Paper & Cup-plate method 4. Phenol Coefficient Method 5. Kelsey Skye's Method
5. Kelsey Skye's Method
STERILITY TESTING OF PRODUCTS (Solids, Liquids, Ophthalmic and other Sterile Products) AS PER IP, BP & USP
ASSIGNMENT 1 1. WRITE THE STERILITY TESTING OF PRODUCTS AS PER BP & USP 2. WRITE A NOTE ON EVALUATION METHODS OF DISINFECTION 3. EXPLAIN THE LYTIC CYCLE OF VIRUS 4. WRITE A NOTE ON IMViC TEST (Submission Date: 9th December)
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE
UNIT 3 FUNGI-VIRUS-DISINFECTANTS SEMESTE