간행물
한국식품영양학회지 KCI 등재 The Korean Journal of Food And Nutrition
- 발행기관 한국식품영양학회
- 자료유형 학술지
- 간기 격월간
- ISSN 1225-4339 (Print)2287-4992 (Online)
- 수록기간 1988 ~ 2025
- 주제분류 자연과학 > 생활과학 자연과학 분류의 다른 간행물
- 십진분류KDC 594DDC 641
권호리스트/논문검색
Vol.38 No.2 (2025년 4월) 4건
1.
2025.04
구독 인증기관 무료, 개인회원 유료
This study investigated quality characteristics and functional components of yuzu (Citrus junos Sieb.) pulp produced during yuzu juice processing by manufacturing it according to mixing ratio of yuzu pulp. Results of pH measurement showed that the higher the mixing ratio of yuzu pulp, the lower the pH. The acidity showed a concentration-dependent increase as the mixing ratio of yuzu pulp increased. Total flavonoids, total phenols, and functional flavonoids (narirutin, naringin, hesperidin, neohesperidin) significantly increased with increasing yuzu pulp content (all p<0.05). Growth rate of Bifidobacterium infantis was approximately 5~39% higher in seasoned foods containing yuzu pulp than in commercial foods. Antibacterial effects of seasoned foods against Salmonella typhimurium and Streptococcus mutans were stronger when yuzu pulp content increased. In conclusion, seasoned foods added with yuzu pulp could be utilized in various ways as functional seasoned foods with excellent antioxidant and antibacterial activities.
4,000원
2.
2025.04
구독 인증기관 무료, 개인회원 유료
This study aimed to establish a marker compound in roasted Astragalus membranaceus (AM) water extract and to validate its analytical methods. The roasting process significantly enhanced the isoflavone content in AM. Among the four isoflavones analyzed, calycosin 7-glucoside (C7G) emerged as the most abundant, with a concentration of 847.88 μg/g in the AM extract. Due to its concentration and representativeness, C7G was designated as the marker compound, and its analytical method was thoroughly validated. Specificity was confirmed by the consistent retention time of the C7G peak at 15.2 minutes across both the sample and the standard compound. High absorbance was recorded at UV wavelengths of 220, 250, and 260 nm. The method exhibited excellent linearity, with a correlation coefficient (R2) of 0.9999 across a concentration range of 0.2 to 50.0 μg/mL. The limits of detection and quantification were determined to be 0.029 μg/mL and 0.088 μg/mL, respectively. Precision assessments revealed intra-day and inter-day variations of 0.812% and 1.650%, respectively. Recovery tests yielded values ranging from 99.419% to 104.861%, with relative standard deviations between 1.152% and 2.215%. These results affirm that the analytical method for C7G is highly specific, linear, accurate, and precise. This validated method may serve as a valuable tool for the standardization of roasted AM water extract.
4,000원
3.
2025.04
구독 인증기관 무료, 개인회원 유료
Due to recent increase in the number of elderly patients, there is a problem of nutritional imbalance and immune function in the elderly due to decreased ability to consume food. To solve these problems, this study was conducted to verify an immunityenhancing effect of Sagunja-tang porridge (SP) on cyclophosphamide (CPA)-induced immunosuppression using an animal model. Experimental groups were set as normal control, CPA-treated group, positive control group, and SP-treated groups (0.25%, 0.5%, 1.0%). Except for the normal control group, experimental groups were injected with 100 μL of CPA dissolved in 0.9% NaCl at a concentration of 150 mg/kg twice at the beginning of the experiment and 3 days later to induce immunosuppression. When spleen cell proliferation was analyzed, both B and T cells were decreased in the immunosuppressed group, but increased in test substance-treated groups in a concentration-dependent manner. To see the effect of improving immunity, levels of IgA known to protect the mucosal surface were measured. Higher levels of IgA were found in SP-low concentration (SL) and SP-middle concentration (SM) groups. These results suggest that using SP might be an effective way to improve nutritional imbalance and immune function in the elderly.
4,000원
4.
2025.04
구독 인증기관 무료, 개인회원 유료
This study aimed to investigate associations of consumption pattern of convenience food with related factors among college students. A total of 583 college students (211 males and 372 females) residing in Chungbuk participated in a questionnaire survey in December 2019. Female students reported that they spent more time using smartphone (p<0.001) and had higher smartphone dependency (p<0.01) than male students. As for the time to use convenience food, significantly higher (20.9%) of male students used it for late night snacks and 55.4% of female students used it for lunch (p<0.001). More than 30% of subjects were ‘Not nutritious’ about the concern of convenience food, showing no significant difference between males and females. Male students had higher consumption frequencies of ramyeon (p<0.05), fast food (p<0.01), water (p<0.001), lunch box (p<0.001), instant Guk/Tang (p<0.05), hamburger/sandwich (p<0.05), salad (p<0.05), and raw food (p<0.05). Female students had a higher consumption frequency of sweet and greasy baked products compared to male students (p<0.001). When the night snack and smartphone use level increased, the intake of convenience food also increased in both groups. For female students, the check of nutrition labeling had a significant negative correlation with convenience food consumption. Therefore, it is necessary to provide gender-specific nutritional education and desirable dietary guidance for college students in early adulthood.
4,000원
