인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Microbial contamination in the cosmetic industry has attracted attention because it risked human health. We examined the effect of preservatives such as 1,2-hexanediol (H), 1,2-octanediol (O), 4-hydroxy acetophenone (A), and their combinations in preventing microbial contamination and reducing the viscosity drop of CNF suspensions. Antimicrobial activity was evaluated by colony count method for B. subtilis , S. xylosus, C. albicans, and the percentage of contaminated area for A . niger . CNF viscosity was measured using a rheometer. The viscosity of CNF was drastically diminished by decreasing the concentration of preservatives used in the suspension. 1,2-hexanediol was the most effective in inhibiting the growth of B . subtilis and S . xylosus at the lowest concentration (0.25%). 4-hydroxy acetophenone was able to reduce CNF degradation by B. subtilis and S. xylosus, more effective than other preservatives. 1,2-octanediol was the most powerful in preventing the growth of C . albicans and A . niger . It was also able to reduce the degradation by C . albicans to 18.96%, followed by O+A and H+O at the concentration of 2%. In the case of A. niger, H+O and H+A presented the interesting results to decrease CNF degradation of 38.32% and 39.21%, respectively.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-ECN-0101-2020-586-001591534