논문 (학술지)
Development of Hydrogels to Improve the Safety of Yukhoe (Korean Beef Tartare) by Reducing Psychrotrophic Listeria monocytogenes Cell Counts on Raw Beef Surface
| 등록번호 | RPMS-2019-0090798969 | SCI 구분
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※구분 : SCI(SCIE포함), 비SCI |
SCI |
|---|---|---|---|
| 저자명 (주·공동저자) | Oh Hyemin; Kim Sejeong; Lee Soomin; Ha Jimyeong; Lee Jeeyeon; Choi Yukyung; Lee Yewon; Kim Yujin; Seo Yeongeun; Yoon Yohan | ||
| 논문구분 | 국내전문학술지 | 학술지명 | KOREAN JOURNAL FOR FOOD SCIENCE OF ANIMAL RESOURCES |
| ISSN | 1225-8563 | 학술지 출판일자 | - |
| 학술지 볼륨번호 | 38 | 논문페이지 | 1189 ~ 1195 |
| 학술지 임팩트팩터 | 0.484 | 기여율 | 100 % |
| DOI | 10.5851/kosfa.2018.e50 | ||
| 초록 | This study developed an antimicrobial hydrogel to control Listeria monocytogenes in Yukhoe (Korean beef tartare). Four hydrogels (hydrogel 1: 5% alginate + 1% chitosan + 0.2% CaCl2, hydrogel 2: 1% κ-carrageenan + 1% chitosan, hydrogel 3: 2% κ-carrageenan + 1% CaCl2, and hydrogel 4: 2% κ-carrageenan + 3% CaCl2) were prepared. The hydrogels then absorbed 0.1% grapefruit seed extract (GSE) and 0.1% citrus extract (CE) for 30, 60, 120, and 240 min to be antimicrobial hydrogels. To select the most effective antimicrobial hydrogel, their swelling ratio (SR) and antilisterial activities were determined. The selected hydrogel (2×2 cm) was then placed on surface of beef (round; 3×3 cm), where L. monocytogenes (ca. 106 CFU/g) were inoculated, and the cell counts were enumerated on PALCAM agar. Among the hydrogels, the SR of hydrogel 1 increased with absorbing time, but other hydrogels showed no significant changes. Antimicrobial hydrogel 1 showed higher (p<0.05) antilisterial activity than other antimicrobial hydrogels, especially for the one absorbed the antimicrobial for 120 min. Thus, the antimicrobial hydrogel 1 absorbed antimicrobials for 120 min was applied on raw beef at 4ºC, and reduced (p<0.05) more than 90% of L. monocytogenes on raw beef. These results indicate that antimicrobial hydrogel 1 formulated with 0.1% GSE or 0.1% CE is appropriate to improve the safety of Yukhoe by reducing psychotropic L. monocytogenes cell counts on raw beef. | ||
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