Sunday, November 29, 2015

FNSC5110 Final Examination 2015-2016

Final Examination will be held on 

 8 December 2015, Tuesday, 7:00 pm. 

two hours examination.

Two parts: Professors Chung and Kwan, 50% each.

Reminder on Lecture materials of 1/12/15

Dear students,

Just to remind you to get and study the files on the Blackboard, CUHK Elearning system for Lecture on 1/12/2015:

1. Mind Maps-3
2. Food Microbiology PPT3, PPT3A, PPT4
3. Notes--viruses, parasites, fungi
4. Protozoa and Parasites
5. Notes--Spoilage, safety

Also to remind you that you need to study all the materials covered in lectures and also those in the mind maps, ppts, and notes. Only the topics covered in lectures will be included in the final examination. For example, if I do not cover fungal pathogens in the lectures then fungal pathogens will not be inlcuded in the final examination.

The final examination will carry two parts, 50% each. One part from Professor Chung and one part from me.

Go to the FNSC5110 blog to see the questions asked by the students in previous years and also the answers.

http://fnt5110hsk.blogspot.hk/

Final Examination: 8 December 2015, Tuesday, 7:00 pm. two hours examination.

Best,

HS Kwan

Wednesday, November 25, 2015

Quorum Sensing

Watch the video on this year's Shaw Price winner Professor Bonnie Bassler talk about Quorum Sensing


https://www.ted.com/talks/bonnie_bassler_on_how_bacteria_communicate?language=en

Monday, November 3, 2014

Reminder on Examination

Examination starts at 7:00pm to-night and takes 2 hours.

7 pm to 9 pm

Last minute question from student

Dear CCCCCC

They are discussed in the lecture and may be found in the Mindmaps.

Neurotoxin: Botulinum toxin is sensitive to heat

Stable toxin: heat stable toxins from Staphylocuccus aureus, in fact the toxins denature when heated but the denatured forms are more toxic

Most toxic toxin: Botulinum toxin is the most toxic natural toxin

Best,

HS Kwan

On Tue, Nov 4, 2014 at 10:08 AM, CCCCC wrote:
Dear professor,

      I have some questions about toxin. What is relate to neurotoxin sensitive to heat ?
What is heat stable toxin causing quick toxification?
And what is the most toxic toxin?

I can't find them in the notes and web. Thank you so much.

Regards ,

Thursday, October 30, 2014

Microorganisms to know well for the Final Examination 20141030

Salmonella enterica
Salmonella Typhi
Salmonella Typhimurium
Salmonella Enteritidis
Escherichia coli
  • -EAEC, EHEC, EIEC, EPEC, ETEC, DAEC 
  • and the German "hybrid" of EAEC/EHEC
Vibrio cholerae
Vibrio parahaemolyticus
Campylobacter jejunii
Shigella species
Listeria monocytogenes
Clostridium perfringenes
Clostridium botulinum
Bacillus cereus
Staphylococcus aureus
lactic acid bacteria

Saccharomyces cerevisiae

Norovirus
Hepatitis A virus

You should know their biological characteristics, e.g. pH range, temperature range, and so on.


Answer to questions from a student 20141030

Dear ZZZZZ,

Answer to your question are placed under each question.

Best,

HS Kwan

From: ZZZZZ
Sent: Thursday, October 30, 2014 11:38 AM
To: hoishankwan@cuhk.edu.hk
Subject: questions about the FNSC5110 exam

Dear Prof.Kwan:
    Sorry to bother you.
    I would like to ask several questions about our mid-term exam of FNSC5110.

    1.whether we need to memorise the food-borne disease outbreak events,aerobic/anaerobic metabolism diagram and the disease flow diagram?

A: you should know the important outbreak events. You should also be familiarize with all materials discussed in the lectures.

    2.Will the topic of HACCP be covered in exam?Because little is mentioned in lectures.

A: No
    3.What topics of lectures will be the emphasis of exam that we need pay close attention to?

A: See list of important Foodborne disease causing microorganisms on the blog. Also the effect of various parameters on microbial growth and survival.

    Thank you.


Yours appreciatively,