[논문]UV-C, 에탄올 처리가 신선편이(Fresh-cut) 씨 없는 수박의 품질에 미치는 영향

한현아; 조승현; 이송이; 김은주; 송은주

doi:10.9799/ksfan.2023.36.1.017

UV-C, 에탄올 처리가 신선편이(Fresh-cut) 씨 없는 수박의 품질에 미치는 영향
Effects of UV-C and Ethanol Treatment on Quality of Fresh-cut Seedless Watermelon 원문보기

한국식품영양학회지 = The Korean journal of food and nutrition, v.36 no.1, 2023년, pp.17 - 24

한현아 (전라북도농업기술원 작물식품과) , 조승현 (전라북도농업기술원 수박시험장) , 이송이 (전라북도농업기술원 작물식품과) , 김은주 (전라북도농업기술원 작물식품과) , 송은주 (전라북도농업기술원 작물식품과)

Abstract ▼ AI-Helper

To apply UV-C as a non-heating sterilization method to increase the microbiological safety of fresh seedless watermelon products, reductions in E. coli and quality changes by treatment dose (0, 2, 4, 8, 14, 20 kJ/m2) were investigated. The pH, sugar content, and hardness of watermelon inoculated with E. coli were not significantly different according to the UV-C treatment dose, but the polyphenol content was significantly decreased compared to the controls (425.4 GAE ㎍/g F.W.). When treated with 2 and 4 kJ/m2, the lycopene content was 31.6 and 30.9 ㎍/g F.W., respectively, which was increased compared to the controls (28.5 ㎍/g F.W.). The arginine and citrulline content was also significantly increased compared to the controls. The number of E. coli was significantly decreased compared to the controls following UV-C treatment. Considering the degree of E. coli reduction, lycopene content, arginine content, citrulline content, and UV-C irradiation time, subsequent experiments were conducted by selecting a UV-C treatment dose of 2 kJ/m2. The results of confirming the degree of reduction in the number of E. coli colonies by a single treatment and combined treatment with UV-C 2 kJ/m2 and 70% ethanol showed that the combined treatment was most effective as colonies were decreased by 2.3 log CFU/g compared to the controls. Therefore, it is judged that UV-C 2 kJ/m2 radiation and combined treatment with 70% ethanol could be applied as a non-heating sterilization method for fresh watermelon slices.

주제어

표/그림 (7)

표 Table 1. Measurement conditions of texture analyzer
표 Table 2. The pH, sugar content and color of fresh-cut seedless watermelon treated with different UV-C radiation
표 Table 3. Hardness of fresh-cut seedless watermelon treated with different UV-C radiation
그림 Fig. 1. E. coli counts of fresh cut seedless watermelon treated with different UV-C radiation. ^a-dMean in each column by different superscripts are significantly at 5% level by Duncan's multiple range test.
표 Table 4. Polyphenols, lycopen, arginine and citrulline content of fresh-cut seedless watermelon treated with different UV-C radiation
표 Table 5. Quality characteristics according to UV-C, ethanol single treatment and combined treatment
표 Table 6. Hardness and number of E. coli colonies according to UV-C, ethanol single treatment and combined treatment

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