논문 상세보기
pp.405-409
현재 대부분의 수삼은 흙이 묻은 상태로 유통되고 있는데 소비자의 편이성을 고려하여 수삼을 세척한 후 포장한 상태로 유통시키기 위한 연구의 일환으로 수삼의 세척처리 방법에 따른 표면세척효과 및 미생물 감균 효과를 조사하였다. 수확 직후 수삼의 부위별 생균수는 5.85~6.63 log CFU/ea범위로 뇌두 부위가 가장 많았고 다음으로는 지근과 주근 순이었다. 부위별 곰팡이 수는 3.67~5.12 log CFU/ea범위로 뇌두 부위가 많았으며 주근과
Surface cleaning is both essential and troublesome when a consumer seeks to eliminate soil attached to the surface of fresh ginseng because all ginseng purchased in the market is covered with soil, reflecting the post-harvest situation. To facilitate ginseng use at home, a fresh-cut type of ginseng is required. As a first step toward production of such ginseng, several washing and dipping treatments were investigated with respect to surface cleaning and reduction of microbial populations on fresh ginseng. In terms of microbial distribution on the surface of fresh ginseng, higher levels of viable bacteria (6.63 log CFU/each) and fungi (5.12 log CFU/each) were present on the rhizome head than on other regions of the root. Of the washing treatments tested, hand-brushing was effective for surface cleaning and to reduce microorganism levels on fresh ginseng, but use of a high-pressure water spray followed by hand-brushing was optimally effective. To further reduce the levelsof microorganisms on the surface of fresh ginseng after washing, additional dipping treatments in 70% (v/v) ethanol and electrolyzed acidic water (at pH 2.3) were somewhat effective but showed no significant differences compared with other dipping treatments tested, including a 3 ppm ozone solution, a 200 ppm sodium hypochlorite solution, or hot water at .
