• Title/Summary/Keyword: rice protein

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Effects of Adding Bamboo leaves Powder on the Quality of Jeolpyon (댓잎분말을 첨가한 댓잎절편의 일반성분 및 품질특성)

  • Kim, Duk-Han;Hwang, Su-Jung
    • Korean journal of food and cookery science
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    • v.22 no.6 s.96
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    • pp.869-874
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    • 2006
  • This study investigated the effect of bamboo leaf powder, added at content of 0%, 3%, 6%, 9% and 12%, on the quality and sensory characteristics of rice cake imprinted with flower pattern (Ed-there is no respecitive comparison here) The chemical composition as a whole was 3.07${\pm}$0.12% of moisture, 5.87${\pm}$0.02% of crude protein, 2.52${\pm}$0.05% of crude fat, 23.70${\pm}$0.07% of crude fiber and 7.73${\pm}$0.02% of crude ash. With increasing amount of added bamboo leaf powder, the hardness and chewiness of the cake were significantly increased(p<0.05), while the cohesiveness, springiness and adhesiveness were decreased. In chromaticity, the L-value, the indicator of brightness, was significantly decreased with increasing bamboo leaf powder content. The a-value, the indicator of redness, was significantly lower than the chlorophyll color (p<0.05). The b-value, the indicator of yellowness, was increased indirect proportion to the content. In sensory test, the sensory characteristics such as color, flavor, taste and chewiness were all stronger with increasing powder content, whereas the softness and dampness were weaker. The greatest overall satisfaction was achieved by the sample group of cake with 6% preference added powder.

Changes in Microflora and Enzymes Activities of Traditional Kochujang Prepared with Various Raw Materials (담금원료에 따른 전통식 고추장의 숙성 중 미생물과 효소력의 변화)

  • Shin, Dong-Hwa;Kim, Dong-Han;Choi, Ung;Lim, Mi-Sun;An, Eun-Young
    • Korean Journal of Food Science and Technology
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    • v.29 no.5
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    • pp.901-906
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    • 1997
  • In order to reproduce and improve quality of traditional kochujang, various raw materials were added to prepare kochujang by replacing part of the glutinous rice. Chemical composition, microbial characteristics and enzyme activities were investigated during fermentation. Crude protein and salt contents of kochujang did not change significantly during fermentation, but moisture contents increased linearly. The pH and titratable acidity of kochujang changed little in garlic added group. The viable cell counts of aerobic bacteria and yeasts in the kochujang increased until 60 days of fermentation and then decreased slowly except for the garlic added group in which they increased during the last period of fermentation. Aerobic bacterial count did not show any remarkable differences among the samples and slowly decreased after 60 days of fermentation. The activities of liquefying and saccharifying amylases decreased until 45 days, but increased at 60th day. Acidic protease activities of each group were strong during the initial period, but neutral protease showed the highest activity from the 30 to 45 days of fermentation. Protease activities increased by addition of soy sauce, Chinese matrimony vine and purple sweet potato.

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Analysis of Food Habits and Nutrients Intake of Nursery School Children Living in Anyang City, based on Z-score of Weight for Height (보육시설 아동의 신장별 체중 Z-score에 따른 식습관과 식이섭취 분석 -안양시 동안구 소재 보육시설 대상-)

  • Ryu, Hyeon-Ju;Kim, Yeon-Jeong;Nam, Hui-Jeong;Min, Yeong-Hui;Park, Hye-Ryeon
    • Journal of the Korean Dietetic Association
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    • v.10 no.1
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    • pp.1-12
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    • 2004
  • To determine food preferences and nutrients intake of nursery school children, 199 children, ages 1 to 6 years, were assessed with a structured questionnaire completed by their mothers. The questionnaire included questions related to dietary habits, mother's interest in the child's health, family history of diseases, etc. The nutrients intake was measured by 24-hour recall method. Children's weight and height were measured by trained investigators on the same day. For analysis purposes, the subjects were grouped into underweight, normal and overweight groups based on the z-score of weight for height. Only 58.3% of the subjects were grouped into the normal weight group. On the other hand, 19.1% were in the underweight group and 22.6% were in the overweight group. Forty four percent of them showed unbalanced dietary habits such as preference for picky foods, 40.0% of them disliked vegetables, and 46.7% disliked minor grains other than rice. Children in the underweight group showed a higher score of inappropriate dietary habits compared to those of normal or obese groups. The level of nutrients intake of the subjects was higher than the Korean RDA value in general, except for Ca, calories, and Zn. However, 87.4% of the children showed a higher intake level than 125% of KRDA in protein, and 18.2% and 41.4% of them showed a lower intake level than 75% of KRDA in Fe and Ca, respectively. Children in the underweight group showed a higher percentage of eating less than 75% KRDA in niacin compared to those of the normal or overweight group (p<0.05) and we found a similar tendency in Fe, Zn and Vitamin $B_1$ intake.

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Evaluation of Food and Nutrient Intake by Food Frequency Questionnaire between Normal and Risk Groups according to the Bone Mineral Density of Female College Students Residing in Gangwon Area (강원 지역 일부 여대생 중 골밀도 정상군과 위험군의 식품섭취빈도법을 이용한 식품과 영양소 섭취 상태 비교)

  • Jeong, Hye-Ryeon;Yun, Sun-Ju;Kim, Mi-Hyun
    • Korean Journal of Community Nutrition
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    • v.15 no.4
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    • pp.429-444
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    • 2010
  • The purpose of this study was to examine the relationship between bone density and dietary intake for college women in their twenties. This study was performed on 160 female college students residing in Gangwon-do. It was conducted using ultrasound measurement of calcaneus bone density, anthropometric checkup and food-frequency questionnaires (FFQ) comprising 94 kinds of commonly consumed foods. Subjects were divided into two groups according to the T-score of bone density: a normal group (n = 113 persons, T-score ${\geq}1$) and a risk group (n = 47, T-score < 1.0). The average age of the subjects was 20.17 years and there was no significant difference between the two groups. Body weight and body fat percentage of the normal group were significantly higher than those of the risk group. The mean daily energy intake of the normal group was significantly higher than that of the risk group. Also, protein, fat, vitamin A, niacin, vitamin B6, folate, calcium, phosphorus, sodium, potassium, iron and zinc intake for the normal group were significantly higher than for the risk group. For the intake of the commonly consumed foods (or dishes) listed in FFQ, the mean daily intake amount of loaf bread, rice cake, potatoes, spicy beef soup, cucumber, seasoned spinach perilla leaves, crown daisy, stir-fried mushroom, sea mustard, beef rib, ham, chicken, mackerel, common squid, drink type curd yogurt, oriental melon and chocolate in the normal group was significantly higher than in the risk group. While, the mean daily intake of ramyun (instant noodle) and carbonated beverage by the normal group was significantly lower than that of the risk group. In conclusion, 20 something female college students showed a higher rate (26.9%) of the bone mineral density risk group (osteopenia or osteoporosis). For the risk group, the levels of nutrient and food intake were lower than in the normal group. Therefore, the bone density risk group needs to increase their nutrient intake and diet quality by increasing the intake of various foods. In addition, they should decrease the intake of foods, which are negative for skeletal health such as instant noodles and carbonated beverages.

Quality Characteristics of Gruel Added with Ramie Leaves (모시잎을 첨가한 죽의 품질 특성)

  • Lee, Seung-Min
    • Culinary science and hospitality research
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    • v.19 no.5
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    • pp.76-86
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    • 2013
  • This study was performed to investigate the quality characteristics of gruel added with ramie leaves. For this study, ramie leaves were made into powder, which consists of 5.37% of moisture content, 27.10% of crude protein, 5.99% of crude lipid, 47.17% of carbohydrate, 14.37% of crude ash. The gruel was prepared with rice powder, salt, and various levels (0, 2, 4, 6, 8%) of ramie powder. After making the gruel, it was examined for the effect of adding ramie on quality characteristics using a mechanical test and a sensory evaluation. The solid contents of gruel tended to decrease with increased amounts of ramie powder. As the amount of ramie powder increased, there were several changes in the sample groups as follows. The pH increased, and the lightness(L) and redness(a) decreased, while yellowness(b) increased; the viscosity decreased, whereas spreadability increased gradually. The results of the sensory evaluation showed that overall-acceptability had the highest scores in the gruel containing 6% level of ramie. In conclusion, the gruel added with 6% of ramie is the best in quality and acceptability.

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Study of Bone Mineral Density, Body Composition and Dietary Habits of $20{\sim}30$ Years Women ($20{\sim}30$대 젊은 여성의 골밀도, 신체조성과 식행동 연구)

  • Koo, Jae-Ok;Ahn, Hong-Seok;Yoo, Sook-Young
    • Korean Journal of Community Nutrition
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    • v.13 no.4
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    • pp.489-498
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    • 2008
  • This study was carried out to identify bone mineral density(BMD), body composition, lifestyle and dietary habits of young women by physical measurement and questionnaires. The study subjects, 190 young women living in Seoul, were divided into three age groups: $20{\sim}24$ years(93), $25{\sim}29$ years(44) and $30{\sim}39$ years(53). There was no significant difference in mean body muscle mass, protein, mineral, body fat and BMI among the three age groups. The rate of low weight(18%) in 20 years group was higher that of the 30 years(11.3%). The mean BMD and T-score were $0.44g/cm^2$ and -0.66. BMD and T-score of the forearm bone were significantly higher in the $30{\sim}39$ years group. But BMD and T-score of calcanues were not significantly different among the three age groups. The rate of normal, osteopenia and osteoporosis subjects by BMD were 60.5%, 38.4%, 1.1%, respectively. The rate of osteopenia in $20{\sim}24$ years group was significantly higher than the other age groups. The rate of meal irregularity was significantly higher in $20{\sim}24$ years group. The rate of women who walk and are exposed to sunlight more than 1hr per day were significantly higher in $20{\sim}24$ years group than the others. However, the score of food behaviors is significantly higher(bad) in $20{\sim}24$ years group than the others. The relationship between BMD and frequency of food intake showed significant differences in beans, broom, seaweed and rice wine. In conclusion, the risk rate of BMD was very high, 40% of the subjects, and the risk rate of BMD was higher in 20 years group than 30 years group, and the rate of low weight in 20 years group was higher than in 30 years group. The food habits and behaviors were not healthy enough. Therefore, nutrition education is needed for bone health.

Changes of Antioxidative Activity and Related Compounds on the Chungkukjang Preparation by Adding Drained Boiling Water (콩 삶은 물을 첨가한 청국장 제조시 항산화활성 및 관련 성분들의 변화)

  • Lee Kyung-Hee;Ryu Seung-Hee;Lee Young-Soon;Kim Young-Man;Moon Gap-Soon
    • Korean journal of food and cookery science
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    • v.21 no.2 s.86
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    • pp.163-170
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    • 2005
  • Soybean is an important plant as the source of protein and oil, as well as phytochemicals such as genistien, daidzein, phenolic acids, phytic acid, tocopherol, and saponin. Chungkukjang, a fermented soybean paste, is common in Korean meals and bacillus is usually used in the fermentation of steamed soybean. For its processing, whole soybeans are boiled in water until the beans are soft, and then the drained beans are wrapped with rice straw or starter and set in a warm place at $65^{\circ}C\;for\;3\;\~\;4\;days$. Normally, the remaining cooked water which was drained from the steamed beans is discarded. We supposed that this water possesses hish amounts of useful components, and we therefore developed a modified method using the cooked water. After fermentation, we added the remaining cooked water which had been drained from the beans to the fermented soy beans and boiled them together. To investigate the bio-functionality of the modified Chungkukjang, the total antioxidative activity, isoflavones contents, phenolic acids, and 3-deoxyglucosone (3-DG) were measured at each stage of the preparation of chungkukjang. The original and modified chungkukjang possessed a high antioxidative activity compared with the other samples, as did the drained water after steaming of the soybean. The contents of genistein, daidzein, and phenolic acids, which contained antioxidative activity, were also increased in the original chungkukjang and their contents were similar in the modified chungkukjang. The content of 3-DG was increased in the modified chungkukjang compare with the original. It is suggested that the active soybean components delivered to the drained water during the steaming process were useful for increasing the bio-functionality of the modified chungkukjang.

The Antioxidant Ability of Grape Seed Extracts (포도씨 추출물의 항산화성)

  • Jang, Jae-Kweon;Han, Ji-Young
    • Korean Journal of Food Science and Technology
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    • v.34 no.3
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    • pp.524-528
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    • 2002
  • The study was carried out to evaluate the antioxidant activity of grape seed extracts by measuring acid value, peroxide value (POV), thiobarbituric acid reactive substances (TBARS value) and electron donating ability by 1,1-dipheny1-2-pycryl hydrazil (DPPH) method. Total phenol content of freeze dried crude solvent extracts increased in the order of ethanol>acetone>hot water. Among extracts, the total phenol content of 70% ethanol extract of grape seed (GSE) was the highest, 51%. Besides the total phenol, the other major components of GSE were crude carbohydrate (29.63%), crude protein (3.38%) and crude lipid (2.84%). The acid values of crude rice bran oil containing GSE or several antioxidants at the concetration of 0.01% were 52.3 for the control, 0.5 for GSE, 2.3 for dibutyl hydroxytoluene (BHT), 45.0 for tertiarybutyl hydroxy quinone (TBHQ), 29.9 for tocopherol and 37.7 for ascorbic acid. The POVs for linoleic acid methyl ester in the presence of 0.01% antioxidants were 1220 meq/kg in control, 55 meq/kg in GSE, 104 meq/kg in BHT, 952 meq/kg in tocopherol and 71 meq/kg in GSE, 37% in BHT, 37% in tocopherol and 52% in ascorbic acid. The electron donating abilities by DPPH in the presence of 0.01% antioxidants were 95.3% in GSE, 75.0% in BHT, 96.3% in tocopherol and 98.2% in ascorbic acid. These results indicated that the antioxidants activities of GSE were significantly higher than those of several antioxidants compared.

'Choyoung', Triticale Cultivar for Forage of Early-Heading, Resistance to Lodging and High Seed Production (조숙 내도복 종실 다수성 조사료용 트리티케일 품종 '조영')

  • Han, Ouk-Kyu;Park, Hyung-Ho;Park, Tae-Il;Oh, Young-Jin;Ahn, Jong-Woong;Ku, Ja-Hwan
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.39 no.2
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    • pp.68-74
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    • 2019
  • 'Choyoung', a winter forage triticale cultivar (X Triticosecale Wittmack), was developed at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2015. The cultivar 'Choyoung' has the leaves of medium width, long length and green color and a medium grain of brown color. The heading date of the cultivar 'Choyoung' was April 30 which was 2 days earlier than that of check cultivar 'Shinyoung'. Its tolerance or resistance to cold, wet injury, powdery mildew, and leaf rust was similar to those of the check cultivar. But the resistance to the lodging of cultivar 'Choyoung' was stronger than that of the check. The average forage fresh and dry matter yield of cultivar 'Choyoung' at milk-ripe stages were 40.5 and $15.7MT\;ha^{-1}$, respectively, which were similar to those (40.3 and $16.1MT\;ha^{-1}$) of the check cultivar. The silage quality of 'Choyoung' was higher than that of the check cultivar 'Shinyoung' in crude protein content (5.9%), while was similar to the check cultivar 'Shinyoung' in acid detergent fiber (33.9%), neutral detergent fiber (57.3%), and total digestible nutrients (62.2%). It showed a grain yield of $5.59MT\;ha^{-1}$, which was 38% higher than that of the check cultivar 'Shinyoung' ($4.05MT\;ha^{-1}$). This cultivar is recommended for fall sowing forage crops in areas in which average daily minimum mean temperatures in January are higher than $-10^{\circ}C$.

'Gwangyoung', Forage Triticale Cultivar of Winter Hardiness, Resistance to Lodging and High-Yielding (내한 내도복 다수성 조사료용 트리티케일 품종 '광영' 개발)

  • Han, Ouk-Kyu;Ku, Ja-Hwan;Park, Jong-Ho;Kim, Jin-Jin;Woo, Jae-Hoon
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.41 no.1
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    • pp.10-15
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    • 2021
  • 'Gwangyoung', a winter forage triticale cultivar (X Triticosecale Wittmack), was developed at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2018. The cultivar 'Gwangyoung' has leaves of wide width, medium length, and green color, and spikes of medium length and yellowish-brown color, and a large grain of yellowish-brown color. The heading date of the cultivar 'Gwangyoung' was April 22 which was similar to check cultivar 'Shinyoung'. Its tolerance or resistance to cold, lodging, wet injury powdery mildew, and leaf rust were also similar to those of the check cultivar. The leaf blade ratio of 'Gwangyoung' (27.5%) was higher than that of 'Shinyoung' (21.2%). The average forage fresh and dry matter yield of cultivar 'Gwangyoung' at milk-ripe stages were 50.0 and 17.6 MT ha-1, respectively, which were higher than those (47.7 and 17.1 MT ha-1) of the check cultivar. The silage quality of 'Gwangyoung' was lower than that of the check cultivar 'Shinyoung' in crude protein content (5.3%) and total digestible nutrients (61.3%), while was higher than the check cultivar in neutral detergent fiber (58.2%) and acid detergent fiber (34.9%). 'Gwangyoung' showed the silage of 1 grade and a grain yield of 6.03 MT ha-1.