Wednesday, June 25, 2008

Grayanotoxin in honey

Name of toxin: Grayanotoxin (formerly known as andromedotoxin, acetylandromedol, and rhodotoxin)

Nature of acute disease: Honey intoxication caused by the consumption of honey produced from the rhododendrons nectar. Grayanotoxins is the cause of intoxication.

Symptom of disease: Excess salivation, perspiration, vomiting, dizziness, weakness and paresthesia are some of the symptom found. At more serious level, loss of coordination, progressive muscular weakness, bradycardia and nodal rhythm or Wolff-Parkinson-White syndrome may present.

Food analysis: Isolation of grayanotoxins from the suspect commodity can be done by typical extraction procedures for naturally occurring terpenes. Thin layer chromatography used for grayanotoxin identification.

Reference: http://en.wikipedia.org/wiki/Food_poisoning
http://www.cfsan.fda.gov/~mow/chap44.html

Sunday, June 22, 2008

Package 2 kick off!

Hi dear all:
Are all of u free on Sat night? Can we meet at 10pm? Please confirm by this coming thurs 12am if possible. Thx! =) Meantime, wuld like to highlight the reserch all of us shuld give prior first:

Me: 1.Identify toxins found in ice crean containing milk and honey.
2.Sources & toxicity of major food toxins.(i.e. Aflatoxin by aspergillus flavus)

Val: Type of toxins produced by pathogens. (i.e.Shiga toxin by E.coli)

Fresa& LiXing: 1.Principles of various lab techniques used in toxins detection.
2.Legal limit on all identified toxins.{more toxins may be identified later, but for sure thr'r aflatoxin(focus M1, B1, B2, G1, G2 oni) and orchratoxin, find on these 2 first}

Shu Jun & Shu Wen: 1.Main principles used in GM process.
2.Advantage & disadvantage of GM foods.

Whether o not we meet in this week, please send me or post a summary and oth related details on BB for above finding by 28june,this coming Sat 12am. Many many thx! =)