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Antioxidant Activity of Salad Vegetables Grown in Korea

  • Xin Zao;Song, Kyung-Bin;Kim, Mee-Ree
    • Preventive Nutrition and Food Science
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    • v.9 no.4
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    • pp.289-294
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    • 2004
  • The antioxidant activity of forty two kinds of salad vegetables grown in Korea was evaluated. Methanol extract of freeze-dried vegetable was assayed by radical scavenging activity using 1,2-diphenyl-2-picrylhydrazyl (DPPH) and Fe^{2+}$-catalyzed lipid peroxidation inhibition by TBA method. Total phenolics were determined colorimetrically using Folin-Ciocalteu reagent. The highest radical scavenging activity was expressed by perilla leaf, followed by dandelion leaf, red and green leafy lettuce, of which $IC_{50}$ was less than 0.10 mg/mL. Angelica leaf showed the highest inhibitory action for lipid peroxidation with $95\%$, and then dandelion leaf, water spinach, and perilla leaf inhibited over $80\%$. However, lettuce (Iceberg) and young Chinese cabbage exhibited the lowest antioxidant activity based on both assay methods. Highly positive correlations between antioxidative activities and total phenolics were observed (p < 0.001). The results suggested that salad vegetables, especially perilla leaf, leafy lettuce, dandelion or angelica, could be used for easily accessible sources of natural antioxidants.

The Effect of Kimchi Intake on Production of Free Radicals and Anti-oxidative Enzyme Activities in the Liver of SAM (김치가 노화촉진 쥐 간의 유리기 생성 및 항산화효소 활성에 미치는 영향)

  • 김종현;권명자;이소영;류재두;문갑순;최홍식;송영옥
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.31 no.1
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    • pp.109-116
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    • 2002
  • This study was performed to investigate the effect of kimchi intake on antiaging characteristics in liver of senescence-accelerated mouse (SAM) in terms of free radical production and anti-oxidative enzyme activities. Two hundred twenty SAM were divided into four groups and fed kimchi diet for 12 months. Experimental groups were kimchi free AIN-76 diet (control) group, Korean cabbage kimchi diet (KCK) group, mustard leaf added (30%) Korean cabbage kimchi diet (MKCK) group, and mustard leaf kimchi diet (MLK) group. Amount of freez-dried kimchi added to the diet was 5% that is equivalent to 50 g of fresh kimchi. Concentrations of total free radical, OH radical, $H_2O$$_2$in the liver significantly increased as aged (p<0.05). But those free radical concentrations from kimchi diet groups were lower than those of control (p<0.05). Among kimchi groups, MKCK and MLK groues showed greater inhibiting effect than KCK. Antioxidant enzyme activities of Cu, Zn-SOD, Mn-SOD, GSH-px, catalase and GSH/GSSG in kimchi groups were significantly increased (P

Determination and Physical Properties of Dietary Fiber in Vegetables (채소류(菜蔬類)의 식이성(食餌性) 섬유소(纖維素)의 함량(含量)과 물리적(物理的) 특성(特性))

  • Kahng, Tae-Soon;Yoon, Hyung-Sik
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.16 no.3
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    • pp.49-54
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    • 1987
  • Procedures for Dietary Fiber(DF) determination were applied to some common vegetables. The samples selected in this study were: Radish(Leaf), Chinese cabbage, Spinach, Shepherd's purse, Red pepper(Leaf), Perilla(Leaf), Soybean(Leaf) and Cabbage. DF was analyzed by the method of detergent fractionation. Values for NDF, ADF, Lignin, Hemicellulose, Cellulose were obtained. NDF for most samples was $12.9{\sim}27.4%$, except Soybean(Leaf) (41.9%), ADP was $7.7{\sim}16.9%$. Lignin was around $1.0{\sim}2.1%$; Red pepper (Leaf) (7.6%), Perillar(Leaf) (5.7%), Soybean(Leaf) (4.2%) were exceptions. $Hemicellulose(NDF{\sim}ADF)$ was about $2.9{\sim}12.0%$, except Soybean(Leaf) (25.0%). $Cellulose(ADF{\sim}Lignin)$ was $6.3{\sim}13.0%$. This paper describes two properties of the fiber of commonly eaten vegetables; Water-Holding Capacity(WHC) and Density. The capacity of the ADP to hold water was estimated. The WHC measurements differed from 6.6g per g of ADP for Red pepper(Leaf) to 10.4g per g of ADP for Radish(Leaf). Radish(Leaf), Soybean(Leaf) had the greatest WHC whereas Red pepper(Leaf), Perillar(Leaf) had the least. Two types of density determinations are shown. Direct (non-packed) values largely correspond with bulk(packed) density.

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Indoor Tank Culture of the Abalone Haliotis discus hannai II. Effects of diets on the growth of young abalone (참전복 Haliotis discus hannai의 육상수조사육에 관한 연구 II. 먹이별 사육실험)

  • JEONG Seong-Chae;JEE Young-Ju;SON Pal-Won
    • Journal of Aquaculture
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    • v.7 no.2
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    • pp.77-87
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    • 1994
  • The study was conducted to develop the suitable abalone's diets for the indoor tank culture. The young abalone Haliotis discus hannai Ino sized ca. 20, 30 and 40 nun in shell length were fed three different diets, dried sea mustard Undaria pinnatifida HARVEY (control), artificial diet and terrestrial plants e. g. Chinese cabbage and Perilla leaf for 2 years. The growth rate of abalones fed an artificial diet was slightly higher than that of abalones from the control. However, the growth rate of abalones from terrestrial plants was significantly lower than that of abalones fed a control or an artificial diet (P< 0.05). The daily feeding rate of young abalones from terrestrial plants was slightly higher than that of abalones from the control. While, that of abalones from an artificial diet was approximately $30\%$ of that of abalones from a control or a terrestrial plants diet. The feed efficiency of abalone from artificail diet was higher than that of abalones from a control or a terrestrial plants diet, and the smaller size of young abalone showed the higher the feed efficiency. The EFA index values ${{\sum}n9/(20:4n6+20:5n3+22:6n3}$ of the dried sea mustard and the artificial diet were 1.26 and 3.64, respectively. These values were favorable, but the value of terrestrial plant, Perilla leaf was 127.00 indicating poor EFA index for normal growth of abalone.

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Food consumption frequency of Korean adults based on whether or not having chewing difficulty using 2013-2016 KNHANES by sex-stratified comparative analysis

  • Kim, Mi Jeong
    • Nutrition Research and Practice
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    • v.14 no.6
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    • pp.637-653
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    • 2020
  • BACKGROUND/OBJECTIVES: This study examined the associations between food consumption frequency of Korean adults and self-perceived chewing difficulty, using the food frequency questionnaire (FFQ, 112 items) from 2013-2016 of the Korea National Health and Nutrition Examination Survey (KNHANES). SUBJECTS/METHODS: Subjects were divided into not difficult in chewing (NDC) and difficult in chewing (DC) groups, with 24.17% being classified into DC. Males and females consumed 35 and 37 items less frequently than the other sex, respectively. Due to the remarkable gender difference in food consumption, gender-stratified one-sided survey regression analysis was performed after adjusted for the effect of age, household income, and self-rated health status. RESULTS: Thirty-four items of FFQ were significantly less consumed by the DC group. Females exclusively consumed less beverages and alcohol while males showed the same for fruits and milk·dairy products. Consumption frequency of 8 items such as steamed potatoes·grilled potatoes, stir fried beef, other kimchi·fresh vegetable kimchi, orange, sour pork·pork cutlet, tteokbokki and green tea were significant only in males. In contrast, 17 items including cooked rice with other grains and legumes, boiled egg·steamed egg, Korean cabbage kimchi, banana, and tofu stew·soft tofu stew were significant only for females. Finally, items that showed significance for both were 9 items including loaf bread, ready-to-eat cereal, steamed sweet potatoes·grilled sweet potatoes, stir-fried lotus roots·stir-fried burdock, green laver salad·brown seaweed salads, apples, tomato·cherry tomatoes, squid (raw, dried shredded, boiled, stir-fried), and curd type yogurt. CONCLUSIONS: Findings in this study suggest chewing difficulty may be an important nutritional issue that has to be dealt with for healthful food consumption, with distinct interest of gender.

Food purchase Behavior of Taejon Full Time Housewives with Different Education Levels (대전지역 전업주부들의 학력수준에 따른 식품구매 실태조사)

  • Kim, Kyung-Eun;Kwon, Sun-Ja;Ly, Sun-Yung
    • Journal of the Korean Society of Food Culture
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    • v.16 no.2
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    • pp.99-108
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    • 2001
  • A survey was conducted to assess the food-purchase behavior of 197 Taejon full time housewives 30 to 49 years of age. Food purchase was assessed using a questionnaire and the resulting data were analyzed using SPSS programs. Demographic data revealed that most of the households have three to five family members and that the Engel Indices of the participating households were mostly between 10 and 30%. Noticeable results of the food purchase assessment are as follows. In the grain and grain products items, the low-education group purchased more rice and barley than the high-education group, whereas the high-education group purchased more glutinous rice, brown rice, bread, macaronis and spaghetti than the low-education group. In the vegetable items, the low-education group purchased more Chinese cabbage and radish than the high-education group, while the high-education group purchased more head lettuce, broccoli and sweet pepper than the low-education group. In the meat items, the beef purchase was higher in the high-education than in the low-education group, while the pork purchase was higher in the low-education than in the high-education group . In the processed meat items, ham was the most favorite purchase item regardless of the education level. In the fish and shellfish items, Pacific cod and Alaska pollack were purchased more in the low-education than in the high-education group, and salmon and dried icefish strip were purchased more in the high-education than in the low-education group. No items in fruit group showed significant differences in the purchase amount between the low-education and the high-education group although the latter purchased more imported-fruits such as melons, kiwis, grapefruits, and oranges. Dairy products such as milk, cheese and butter were purchased more in the high-education than in the low-education group. It was also found that both the number of food items and the consumption of foods coming from animals were higher in the high-education than in the low-education group.

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A Study on the Cooking in 'The Ryuk-Jab-Rok' ("역잡록"의 조리가공에 대한 분석적 고찰)

  • 김성미;이성우
    • Journal of the East Asian Society of Dietary Life
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    • v.3 no.1
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    • pp.12-17
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    • 1993
  • This book is named 'The Ryuk-Jab-Rok' because it was written in the last page of 1820's almanac. This book is written purely in Korean and has not been published yet. This book comprises twenty eight items, among which there are eight items of vegetable preserving method, ten items of Jook preparation methods(a kind of cereal soup), nine items of Pyun-Myun methods(a kind of rice cakes and noodles) and Yak-Bab(a kind of spiced rice). In vegetable preserving method, the eggplant, the cucumber and a songi mushroom were preserved with the drying method., A radish, a sorojangii, and the root of white cabbage were used with the cold temperature preservation. A garlic was dried after salting. The sprouts of DooRub, which were coming in the hot room, were used. In the Jook preparations, there were five animal materials which were lamb, chick, crudian, oyster and abalone. In nine Pyun-Myun methods, Jap-Gua-Sil was illegible because the letters were not clear. Among eight items, the stick rice was used in four cases, the regular rice in two cases. The ground pine nuts, honey and the Chinese date were used most ofter. And the sesame salt and the chestnut were next. The analysis of the terms I this book revealed that 26 items were used for cooking processes. And it also showed us that there were seven kind of cutting procedure and eight kinds of heating procedure. The shapes and size of foods were revealed at only three places in all items. The one-chi(chi ; abut three cm) and three-Ja(Ja ; about thirty cm) which the terms represent the length were revealed twice and once respectively in this book. In the taste description, 'the good', the most common word, was used in seven times, and which was the most frequently introduce case. The measuring unit is hard to revive since the measurements were taken by the container, which were Jong-Ja, Sabal and Tang-gii, then in use. Fifteen kinds of containers and cookers were used for preparing foods. And all of them are now I use.

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Screening Method for Non-viable Seeds in Brassicaceae Vegetable Crops by Sinapine Leakage (Sinapine누출을 이용한 십자화과 채소의 퇴화종자 선별법)

  • 민태기
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.39 no.5
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    • pp.473-479
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    • 1994
  • A seed coating system was developed to screen non-viable seeds in the Brassicaceae. The crops studied were radish, chinese cabbage, broccoli, cauliflower and brussel sprout. Sinapine leaked more from artificially deteriorated seeds than non-deteriorated seeds. Seed coating with cellulose was to trap the sinapine leakage in the non-viable Brassicaceae vegetable seeds. The seeds were first hydrated, then coated with cellulose powder to capture the leakage. Coated seeds were dried, then sorted two fractions-fluorescent seeds and non-fluorescent seeds under the UV light. The ratio of the fluorescent seeds were higher in bad seedlot than good one. The germination rate were increased 3∼35% by eliminating the fluorescent seeds in tested Brassica vegetable seeds. Sowing non-fluorescent seeds resulted in a greater percent normal seedling than non-coated seeds in all seedlots. The fluorescent seeds contained a high percentage of the dead and abnormal seedlings.

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Physiological Characteristics and Manufacturing of the Processing Products of Sprout Vegetables (새싹채소의 생리활성 특성 및 그 가공품의 제조)

  • Kim, Duk-Sook;Lee, Keun-Bo
    • Korean journal of food and cookery science
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    • v.26 no.3
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    • pp.238-245
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    • 2010
  • Sprout vegetable and general vegetable were obtained from radish, red cabbage, vegetable green, buckwheat and broccoli seeds. The vitamin contents had a large deviation, and the vitamin B1 contents decreased and/or was not detected according to the sprouting. This tendency occurred because of the use for growth of sprouts. The mineral contents in sprout vegetables was the highest and was 2~10 times greater than general vegetables. In the growing pathway, potassium was a large consumption nutrient and consumption of sodium was low. $\alpha$-Amylase and total enzyme activities were higher in sprout vegetable than general vegetable, which was also the case of the corresponding freeze dried powders. Sprouting was shown to increase the enzyme activities. Thus, sprout vegetables had several advantages including a rich level of nutrients and safety from agricultural pesticides.

Frequently Consumed Dishes and Development of Recipes to Improve Bone Mineral densities in Continuous Ambulatory Peritoneal Dialysis Patients with Osteopenia (골감소증을 동반한 지속성 복막투석환자의 다빈도섭취 음식조사 및 골밀도 개선을 위한 레시피 개발)

  • Park, Jin-Gyeong;Son, Suk-Mi
    • Journal of the Korean Dietetic Association
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    • v.12 no.4
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    • pp.411-431
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    • 2006
  • The purpose of this study was to assess the frequently consumed dish consumption frequencies of continuous ambulatory peritoneal dialysis(CAPD) patients with osteopenia and develop recipes to improve bone mineral density of CAPD. The subjects were 96 CAPD patients with osteopenia(male 39, female 57) (osteopenia group) and 45 CAPD patients with normal BMD(male 24, female 21), matched with key variables(normal group). Fifty dishes(foods) that most frequently consumed were determined and food consumption frequency for each dish(food) for two groups were compared. Osteopenia group showed lower consumption frequency for ice-cream but higher frequency in apple. Of the 50 most frequently consumed dishes(foods), 20 dishes assessed as safe and recommendable for CAPD patients with osteopenia based on the contents of protein and mineral were selected : white boiled rice, white gruel, beef soup, steamed cabbage, roasted dried laver, fried egg, roasted bean-curd, cooked and seasoned bean sprouts, corn-starch jelly, cheese, ice-cream, orange juice, apple, grape, peach, peanut, raw lettuce, raw cucumber, and injulmi rice cake. wenty eight new dishes with modified recipes were developed for CAPD patients. Protein and mineral contents were analyzed for frequently consumed 17 dishes, assessed as modification of recipes are needed. The recipes were modified to decrease P, Na and K contents and to increase protein and Ca contents. Twenty dishes(foods) selected as having reasonable protein and mineral contents ratio or 28 newly developed dishes modified with protein and mineral contents or ratio would be helpful for nutrition education or counseling for CAPD patients with osteopenia. Dishes(foods) suggested in this study would also be useful for all CAPD patients for preventing osteoporosis.

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