• 제목/요약/키워드: Food Science and Nutrition

검색결과 18,367건 처리시간 0.054초

Subacute Toxicity Study of 40 kGy Irradiated Ready-to-Eat Bulgogi

  • Park, Jin-Gyu;Kim, Jae-Hun;Byun, Myung-Woo;Jeon, Young-Eun;Kang, Il-Jun;Hwang, Han-Joon;Lee, Ju-Woon
    • Preventive Nutrition and Food Science
    • /
    • 제16권1호
    • /
    • pp.83-88
    • /
    • 2011
  • The wholesomeness of 40 kGy irradiated ready-to-eat (RTE) bulgogi was evaluated by subacute toxicity studies (body weight, food consumption, organ weight, hematology, serum biochemistry, and histopathological examination) with groups of 40 male and female ICR mice fed the agent at dietary levels of 5% for 90 days. There were no treatment-related adverse effects with regard to body weight, food consumption, organ weight, hematology, serum biochemistry, and histopathology. The no-observed-adverse-effect-level (NOAEL) was also determined to be greater than dietary level of at least 5% (3900 mg/kg body weight/day for males, 3500 mg/kg body weight/ day for females) for samples under the present experimental conditions. These results suggest that, under these experimental conditions, RTE bulgogi irradiated at 40 kGy did not show any toxic effects.

Mukbang media: correlations with the dietary behavior of children and adolescents in Korea

  • Eunjin Jang;Eunji Ko;Jiwon Sim;Minjeong Jeong;Sohyun Park
    • Nutrition Research and Practice
    • /
    • 제18권5호
    • /
    • pp.674-686
    • /
    • 2024
  • BACKGROUND/OBJECTIVES: Mukbang, a trend originating in South Korea and gaining global popularity, could influence children's food choices and eating habits. This study analyzed the correlation between Mukbang viewing time in children and adolescents, their meal consumption frequency, nutrition quotient (NQ), and frequency of food intake. SUBJECTS/METHODS: From July to August 2022, this cross-sectional study investigated upper elementary students (ages 9-11 yrs) and adolescents (aged 12-18 yrs) using an online survey. The survey items included key demographic factors, Mukbang viewing frequency and duration, frequency of main meal consumption, commonly consumed foods, and the validated NQ, which was used to assess food intake quality. Multiple linear regression analysis was used to explore the link between Mukbang viewing and nutritional habits. RESULTS: Weekly Mukbang viewing time was significantly correlated with eating habits after adjusting for gender, age, physical activity frequency past week, household income, and primary caregiver's level of education. Increased Mukbang viewing time correlated with reduced frequency of breakfast (P for trend < 0.001) and dinner (P for trend = 0.012), while the frequency of eating out (P for trend < 0.001) and late-night snacking (P for trend = 0.008) increased. Higher Mukbang viewing time notably decreased scores in the moderation domain (P for trend < 0.001), in the practice domain (P for trend = 0.031), and overall NQ (P for trend < 0.001). It also significantly elevated intake of sweets (P for trend = 0.001), Korean-style street food, Western-style fast food, instant noodles, sweetened beverages, caffeinated beverages, and fruit and vegetable juices (P for trend < 0.001). CONCLUSION: This study identifies a negative correlation between Mukbang viewing and eating habits among Korean children and adolescents. The results indicate the importance of incorporating children and adolescents' media usage and environmental factors on dietary education and the development of policy programs.

우리나라 쌀의 칼로리, 무기질 및 아미노산 함량 (Calorie, Mineral Content and Amino Acid Composition of Korean Rice)

  • 김성곤;김일환;한양일;박홍현;이규한;김을상;조만희
    • 한국식품영양과학회지
    • /
    • 제13권4호
    • /
    • pp.372-376
    • /
    • 1984
  • 일반계 4품종, 다수계 7품종 및 찹쌀 1품종의 백미를 대상으로 칼로리, 무기질 및 아미노산 함량을 분석하였다. 칼로리나 무기질 함량은 일반계와 다수계 품종간에 큰 차이점이 없었으며, 찹쌀은 멥쌀에 비하여 인과 칼륨의 함량이 높았다. 아미노산 함량은 글루탐산을 제외하고는 품종간에 유의적인 차이가 없었다. 메티오닌은 품종간에 큰 차이를 보였다. 시료 쌀의 제1제한 아미노산은 모두 라이신이었으며 제 2제한아미노산은 트레오닌이었다.

  • PDF

저소득층 노인에서 식품불안정과 사회경제적 지표, 건강상태, 영양소 섭취와의 관련성 (Associations of Household Food Insecurity with Socioeconomic Measures, Health Status and Nutrient Intake in Low Income Elderly)

  • 권성옥;오세영
    • Journal of Nutrition and Health
    • /
    • 제40권8호
    • /
    • pp.762-768
    • /
    • 2007
  • This study examined household food insecurity and the associations of food insecurity with socioeconomic conditions, food behaviors, and nutrient intakes among 458 older adults(mean age=$73.2{\pm}4.5$) from 5 clusters of low-income areas in Seoul, Korea. Using an adapted version of the USDA short form household food insecurity scale, 63.4% of the households were food insecure(40.7% for food insecure without hunger and 22.7% for food insecure with hunger). The proportion of household was lower on the items measured more severe level of food insecurity. Food insecurity was linearly and negatively associated with food expenditure, food secured period and the degree of nutrition management skills, health status and depression. Food secure older adults had mere of energy and other nutrients from animal resources(riboflavin and animal protein, fat and calcium), but less of carbohydrates than those from the food insecure households. These results suggest household food insecurity measures used in this study was valid as well as food insecurity was prevalent and an important indicator of nutrition well-being among low income elderly persons.

Antioxidative Activity of Phenolic Compounds in Roasted Safflower (Carthamus tinctorius L.) Seeds

  • Kang, Ga-Hwa;Chang, Eun-Ju;Park, Sang-Won
    • Preventive Nutrition and Food Science
    • /
    • 제4권4호
    • /
    • pp.221-225
    • /
    • 1999
  • Antioxidative compounds contained in roasted safflower seeds were investigated. Six phenolic compounds, N-feruloylserotonin, N-(p-coumaroyl) serotonin, matairesinol, 8'-hydroxyarctigenin, acacetin 7-Ο-β-D-glucoside(tilianine) and acacetin were isolated and identified from the extract of seeds. The inhibitory effects of six phenolic compounds on 1,1-dipheny1-2-picrylhydrazyl(DPPH) radical and lipid peroxidation induced by H₂O₂/FeSO₄in rat liver microsomes were determined. Two serotonins showed more potent DPPH radical scavenging activity, and a stronger inhibitory effect on the lipid peroxidation than that of α-tocopherol. In addition, acacetin and matairesinol also considerably inhibited lipid peroxidation, while 2-hydroxy-arctigenin and tilianine were inactive. These results suggest that phenolic compounds, including serotonins, lignans and flavonoids in the roasted safflower seeds can be used as potential dietary natural antioxidants.

  • PDF

Effects of Kimchi Extract on the Development of Multicellular Structures from Rat Mammary Organoids Cultured in Matrigel

  • Kim, Nam-Deuk;Hur, Young-Mi;Rhee, Sook-Hee;Park, Kun-Young
    • Preventive Nutrition and Food Science
    • /
    • 제1권2호
    • /
    • pp.168-173
    • /
    • 1996
  • The effect of methanol soluble fraction(MSF) of kimchi on the proliferating and differentiating activity of normal rat mammary epithelial cells or organoids in culture were studied. Reconstituted basement membrane, Matrigel, supported the growth and development several different multicellular structures from mammary organoids. The five type colonies of multicellular structures, stellate, ductal, webbed, squamous, and lobulo-ductal colonies, were observed in Matrigel culture. In methanol extract groups, webbed colonies were more and squamous colonies were less than control group. and the lobulo-ductal colonies which is known that it formed in well differentiated mammary epoithelial cells were developed more in MSF treated group than control group. These results showed that methanol extract of kimchi affected on the proliferation and differentiation of normal rat mammary epithelial cells cultured in serum free medium condition.

  • PDF