Summary of recent food surveillance
ACFEH Paper 13/2009
on 9 December 2009
Advisory Council on Food and Environmental Hygiene
Summary of Recent Food Surveillance
Targeted surveillance on sulphur dioxide in meat
In the summer months, the CFS conducted a targeted food
surveillance project to assess the use of sulphur dioxide in fresh meat. Though commonly added to foods like dried fruits and fruit juices, sulphur dioxide is not permitted to be added to fresh, chilled or frozen meat. The project had been conducted after repeated detection of the use of the non-permitted chemical in fresh meat in recent years. Samples include pork, beef and mutton collected from various meat stalls. Of the 222 samples tested, the overall satisfactory rate was 95%, with 11 unsatisfactory results. Some involved repeat offenders.
The unsatisfactory samples included nine fresh beef and two fresh
pork samples with sulphur dioxide levels ranging from 20ppm and 390ppm. As sulphur dioxide is water soluble and of low toxicity, it does not pose serious health effects to the public.
The CFS has taken follow-up action including issuing warning
letters to the retailers concerned and taking further samples for testing. When there was sufficient evidence, prosecution has also been taken out. Press release on the surveillance results was issued in October 2009.
Seasonal food surveillance on mooncakes
In August and September, the CFS collected samples for a seasonal
food surveillance project on food safety of mooncakes.
A total of 250 samples, including traditional, snowy, ice-cream and
other mooncakes, had been collected from retail outlets and food factories for microbiological and chemical tests. The chemical tests included preservatives, antioxidants and colouring matters such as sudan dyes. The
microbiological tests covered total bacterial count, coliform organisms and pathogens such as Salmonella, Staphylococcus aureus and Listeria monocytogenes.
All samples of the project showed satisfactory results. A press
release on the surveillance results was issued. Relevant advice on food safety was also provided to the trade and public in September 2009.
Seasonal food surveillance on hairy crabs
The CFS had also completed a seasonal food surveillance project
A total of 106 samples were collected at import, wholesale and
retail levels for microbiological and chemical tests. The chemical tests included veterinary drug residues (including chloramphenicol, sulphonamides, tetracycline, nitrofurans and malachite green), metallic contamination (including mercury, lead and arsenic), synthetic hormones, and colouring matters (including Sudan dyes), while the microbiological tests covered parasites.
All results of the samples were satisfactory. A press release was
issued in November 2009 with advice to the trade and consumers.
Centre for Food Safety
Food and Environmental Hygiene Department
Food and Health Bureau
Journal of Antimicrobial Chemotherapy Advance Access published March 18, 2011 J Antimicrob Chemotherdoi:10.1093/jac/dkr108In vitro synergistic effects of baicalin with oxytetracyclineand tetracycline against Staphylococcus aureusPavel Novy1, Jan Urban2, Olga Leuner1, Jaroslav Vadlejch3 and Ladislav Kokoska1,3*1Department of Crop Sciences and Agroforestry, Institute of Tropics and Subtropics
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