This survey was conducted to monitor the food additives, heavy metals, and microbial contamination of the dried marine products like squids, pollacks, and shrimps, including jerked beef. They were purchased from supermarkets and traditional markets in Gwangju from February to December 2009. A total of 101 samples were tested. Sorbic acid, one of the additives, was detected in 29 samples of them (32.2%) and the contents were from 21.4to 244.2 mg/kg. Among heavy metals, lead was detected, ranging from 0.000 to 0.594 mg/kg and cadmium, from 0.000 to 0.679 mg/kg and mercury, from 0.001 to 0.947 mg/kg. Sodium was detected, ranging from 0.6 to 1.7%. Aerobic bacteria were detected from 81 samples (80.2%), coliform bacteria, from 10 samples (9.9%) and Bacillus cereus,causing food poisoning, was isolated from 3 samples (3.0%).

This survey was conducted to monitor the total sugar, sodium, and artificial sweetener contents of light meals from the school zone in Gwangju, from November, 2008 to April, 2009. A total of 100 samples were tested. HPLC/ELSD was used for the determination of total sugar contents and AAS for sodium contents. Total sugar amounts were the sum of both mono-and disaccharide according to nutritional information standard defined by the Korea Food and Drug Administration. The results were as follows by the form of total sugar content(sodium content): 5.7 ± 1.9%(4.6 ± 1.6 mg/g) for Tteokbokki, 7.6 ± 5.1%(5.4 ± 2.7 mg/g) for Chicken(skewed), 15.4 ± 3.2%(3.0 ± 0.9 mg/g) for Bun(fish-shaped), 0.6 ± 0.3%(3.7 ± 1.0 mg/g) for Sundae, 0.9 ± 0.3%(7.4 ± 1.4 mg/g) for Oden(with broth), 20.5 ± 6.2%(2.9 ± 0.6 mg/g) for Waffle, 6.8 ± 2.2%(4.7 ± 1.0 mg/g) for Hotdog, 14.2 ± 2.8%(3.1 ± 1.6 mg/g) for Hotteok, 6.6 ± 2.1%(3.9 ± 0.6 mg/g) for Toast, 10.1 ± 3.7%(2.3 ± 0.7 mg/g) for Fry(sweet potato), 1.6 ± 0.7% (4.0 ± 0.7 mg/g) for Fry(etc), and 9.3 ± 2.4%(4.0 ± 0.6 mg/g) for Doughnut. In addition, sodium saccharin, one of the artificial sweeteners, was tested. Among 60 samples from February to April, 2009, 11 samples had sodium saccharin(6.7~101.0 mg/kg).