The purpose of this study was to compare the effect of different methods of hand washing by counting the number of bacteria on the hand surface. Eighteen clinicians were chosen and divided into three groups, consisting of six clinicians each. Culturing of the right raw palms of all individuals was performed. Individuals in the control group washed hands for 5 seconds with antimicrobial soap. Group 1 washed their hands for 10 seconds with antimicrobial soap. Group 2 washed with an instant alcohol-based hand sanitizer. After the respective washes, re-culturing of the right raw palm was done for each member of all groups. The colony-forming units (CFU) were calculated at each time point, and the reduction rate of CFU among the three groups were statistically evaluated using student t-test. All groups showed a significant decrease in CFU, according to the time applied (P<0.01). In addition, the reduction rate of CFU between the groups were statistically evaluated with ANOVA (P<0.01). It showed statistically difference between the control group and group 1, control group and group 2. The present study confirmed that the hand washing method with antimicrobial soap for 10 seconds and hand sanitizer, including alcohol, were excellent for decreasing the number of bacteria on the hand surface.

새싹은 영양분이 풍부한 식품이다. 하지만 생산 과정에서 종피에 있는 미생물에 의한 오염 가능성이 존재한다. 이 실험의 목적은 음이온 처리가 새싹의 생장과 살균에 미치는 효과를 구명하는 것이다. 음이온 처리는 4종류의 새싹의 생장과 살균효과에 긍정적인 효과를 보였다. 대조구에 비해 음이온 처리한 적양배추와 케일 새싹의 배축길이는 약 1.26배 증가하였으며, 상추, 적양배추, 케일 유근의 길이는 1.4~1.6배 증가하였다. 모든 새싹의 생체중은 음이온 처리했을 때 대조구에 비해 16.0~38.5% 유의적으로 증가하였다. 유근의 활력 또한 음이온 처리가 대조구에 비해 유의적으로 높은 수치를 보였다. 음이온 처리된 상추, 적양배추, 다채 새싹의 일반 세균 수는 대조구에 비해 각각 41%, 66%, 19% 감소하였으며, 배수되는 물의 세균 수 또한 감소되었다. 결국 음이온처리는 새싹의 생장을 향상시켰으며, 동시에 살균하는데도 효과적이었다.

A total of 222 udder-half milk samples of lactating goats were collected from two herds in Korea during 2008 and all samples were subjected to bacteriological examination. Somatic cell counts (SCC) were also determined for all samples except for 13 (5.9%), which were collected from halves of udders with clinical mastitis. A total of 85 bacteria were isolated from 82 (36.9%) of 222 milk samples tested. Staphylococci were the predominant pathogens, accounting for almost 70% of the isolates: Coagulase negative staphylococci (CNS) and S. aureus constituted 55% (47/85) and 14.1% (12/85), respectively. Among 209 samples tested for SCC, bacteria were isolated from 36 of 115 (31.3%) samples with SCC of <1×106 cells/㎖ and 38 of 94 (40.4%) samples that had SCC of ≥1×106 cells/㎖, respectively. All S. aureus were detected from samples with SCC of ≥1×106 cells/㎖, while 25 of 47 (61.0%) CNS were isolated from milk samples with SCC of <1×106 cells/㎖. Mean SCC of milk samples that harbored S. aureus and CNS was 4,787×103 cells/㎖ and >1×106 cells/㎖, respectively. All S. aureus and CNS isolates were susceptible to all antimicrobials tested except for penicillin, to which 2 (16.6%) S. aureus and 12 (25.5%) CNS isolates showed resistance.

Dry rehydratable film (Petrifilm) method was compared with the standard pate count (SPC) method for estimation of total bacteria in ginseng products. Ginseng products (7 sample) was analyzed for total count by the SPC, and Petrifilm methods, respectively. In the case of ginseng tea, ginseng extract, ginseng extract pill, ginseng powder capsule, and ginseng extract tea,. they showed non-significant values at the 1 level. However, the values of ginseng powder and tablet showed significant at the 1 level. These results generally indicate the suitability of the dry rehydratable film methods as alternatives to the SPC method for estimating of total bacteria in ginseng product samples except to ginseng powder and ginseng tablet.

일반적으로 실제 저장 유통되는 조건 하에서 생선의 품질 변화를 예측하기 위하여 대표적 생선인 고등어, 조기, 꽁치를 대상으로 미생물과 pH의 변화를 측정하였다. 고둥어의 저장조건으로는 실제 유통되고 있는 조건인 실온 얼음상과 에 저장하면서 그 변화를 관찰하였으며 조기와 꽁치는 와 4에 각각 저장하면서 저장온도에 따른 변화를 관찰하였다 고등어의 초기 총균수는 3.2CFU/g 이었으며 실온 얼음상에서는 저장 6일 후 8.4까지 증가하였다. 반면,