Exam Details

Subject Food Microbiology
Paper
Exam / Course POST GRADUATE DIPLOMA IN FOOD SCIENCE AND TECHNOLOGY (PGDFT)
Department School of Agriculture (SOA)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

1. Fill in the blanks with suitable words:

The word microbial is derived from language.

Common cough and cold is caused by

The Proteinaceous infectious materials are known as

Glass covered plate to hold nutrient media is called

is an example of bacteriocin.

Sauerkraut, Koji, Kefir are all foods.

refers to an organism that does not require 02.

are used in preparation of curd, yoghurt, cheese.

A cottony/ fuzzy growth indicates presence of

For long term storage of culture is useful.

2. Answer the following:

What are the nonliving sources of microbial contamination

Briefly comment on the prevention of Food Borne Illness.

Briefly discuss the microbiological quality of ice-cream.

How does natural Souring or curdling of milk take place?

3. Define:

Cryopreservative agents

CFU

Cross contamination

Mesophilic starters

Bacteriocins

Exopolysaccharides

Thermophilic starters

Endospores

Yeasts

Bacteria

Describe the biological causes of can spoilage.

Types of can spoilage -Explain.

5. Describe following terms in relation to spoilage

Proteolysis

Ropiness

Gas formation

Button formation

Moldy cheese

6. Match the following:

A B
Dye Reduction Test EMB Agar
Spiral plate count Heat resistant bodies
Differential media Peptone
Liquid media Counting grid
Solid media Nigrosin
Organic nitrogen Tartaric acid
PDA agar Slants
Maintenance of MBRT
culture
Acidic dye Agar
Endospore Broth

7. Give the principle of following:

DMC

Spiral plate count

Resazurin Reduction Test

Gram staining

SPC

8. Write short notes on

Need for rapid detection technique

Biosensors

ELISA

Immunomagnetic separation


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Dairy Technology
  • Food Chemistry And Nutrition
  • Food Microbiology
  • Food Packaging, Safety And Quality Management
  • Food Processing And Engineering
  • Fruit And Vegetable Technology
  • Meat, Fish And Poultry Technology
  • Technology Of Cereals, Pulses And Oil Seeds