• Title/Summary/Keyword: Food Group

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Analysis of operation status on leading group of agro-food export (농식품 수출선도조직 운영실태 분석)

  • Kim, Kyung-Phil
    • Korean Journal of Agricultural Science
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    • v.39 no.1
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    • pp.143-149
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    • 2012
  • It is necessary to construct the supply system which is stable and quality assured for professional performance of agro-food export. The purpose of this study is to present the basic information about the improvement directions on the Leading Group of Agro-food Export. The result of analysis is presented by the achievement of business objective, farm-organization and large scale-up, marketing achievement, and the fidelity of group operations etc.

Effect of Drying Methods on Physicochemical Characteristics and Functional Properties of Duck Blood Gel

  • Kim, Jake;Kim, Tae-Kyung;Cha, Ji Yoon;Ku, Su-Kyung;Jung, Samooel;Choi, Yun-Sang
    • Food Science of Animal Resources
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    • v.42 no.5
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    • pp.861-873
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    • 2022
  • The drying of duck blood provides safety and commercial benefits, but each drying method has its own characteristics. Moreover, information on the effects of diverse drying methods on the quality of duck blood is limited. This study aimed to investigate the effects of various drying methods on the chemical and functional properties of duck blood. The physicochemical characteristics and functional properties of duck blood subjected to spray drying (SD), freeze drying (FD), vacuum drying (VD), and hot air drying (HD) were examined. The carbonyl content of FD duck blood powder was the lowest and the thermal stability was higher than that of the other treatments (p<0.05). The gel obtained from spray-dried blood displayed the lowest malondialdehyde content. The hardness, gumminess, and chewiness were the highest in the heat-induced gel prepared from FD duck blood powder (p<0.05). The gel obtained from FD duck blood displayed a denser structure than the other gel samples. Taken together, the FD duck blood exhibited excellent chemical properties and processing suitability.

The Effect of Food Restriction on Appetite Regulating Hormones and Adiponectin Activity (단기간 절식 및 반복적 절식과 재식이에 따른 식욕조절호르몬과 아디포넥틴 활성의 변화)

  • Kim, Ki-Hoon;Kim, Hyun-Kook
    • Journal of Nutrition and Health
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    • v.45 no.1
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    • pp.5-11
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    • 2012
  • We investigated the effects of short-term food restriction and repeated fasting and refeeding on appetite regulating hormones and adiponectin activity in rats. To investigate the acute and chronic effects of food restriction in vivo, Sprague-Dawley rats were divided into a control group (CON), a 1 day fasting group, a 2 days fasting gruop, a 3 days fasting gruop, a fasting and refeeding for 1 week gruoup and a fasting and refeeding for 2 weeks group. Blood glucose, triglyceride and total cholesterol decreased in all fasting groups compared to those in the CON group. Free fatty acid of all fasting groups was higher than those in the CON, and were lowest in the three cycle fasting and refeeding group. Blood insulin following short-term food restriction was lower than that in the CON. blood ghrelin increased significantly (p < 0.01) following the short-term food restriction, However, blood ghrelin in the repeated fasting and refeeding groups decreased significantly decreased (p < 0.01) compared to that in the CON and short-term food restriction group. In contrast, blood leptin decreased significantly (p < 0.01) in the short term food restriction group and the three cycle of fasting and refeeding group but increased in the six cycle of fasting and refeeding group. No significant differences in adiponectin contents were observed in the short-term food restriction group. But, adiponectin increased significantly (p < 0.01) following the fasting and refeeding cycles. Blood adiponectin and blood leptin levels were showed positively correlated ($r^2$ = 0.469) when all samples were analysed together.

A Study on the Eating Habit and a Healthy Diet's Perception of Korean Food Investigated through a Focus Group Interview (FGI) - Focus on the Dietary Life Related Expert - (FGI(Focus Group Interview)를 통한 한국음식의 건강성인지 및 식태도에 관한 연구 - 식생활 관련 전문가들을 중심으로 -)

  • Chung, Hea-Jung;Kwon, Yong-Suk
    • Korean Journal of Human Ecology
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    • v.19 no.6
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    • pp.1115-1125
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    • 2010
  • This study investigated how Korean food is perceived within a healthy diet and what kinds of eating habits Korean people have. A Focus Group Interview (FGI) was conducted with participants who were experts on diet. Data were categorized into five groups using content analysis. categories were as follows: 1) Korean food and health assessment, 2) opinion on Koreans' current eating habits, 3) characteristics of Korean food, 4) comparison of Korean food in the past and present, 5) a plan for healthy diet. Results showed that a healthy diet should not only include a lot of vegetables, simple and unprocessed food as well as less spicy food, but that it should also be well-balanced nutritionally.

Glass Slide-based Immunosensing for C-Reactive Protein Using Quantum Dot-Antibody Conjugate

  • Kim, Namsoo;Oh, Sun Mi;Kim, Chong-Tai;Cho, Yong Jin
    • Food Engineering Progress
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    • v.14 no.1
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    • pp.21-26
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    • 2010
  • C-Reactive protein (CRP), which is an 118 kDa pentameric protein, was secreted by the liver is an important biomarker for coronary disease, hypertension and inflammation. In this study, a method for CRP detection exploiting quantum dot (Qdot)-antibody conjugate was developed according to an indirect-competitive immunosensing protocol. For this purpose, a streptavidin-bound $Qdot_{605}$ was linked with a separately prepared biotinylated monoclonal antirat CRP antibody to produce a Qdot-antibody conjugate. The immunosensing was performed at 0.1 and 20 nM of the coating antigen and conjugate, respectively. The current method was found very sensitive in CRP detection, judging from the concentration-dependent fluorescence emission.

Effect of Feeding with Different Source of Carbohydrate and HCA on Body Weight Gain and Lipid Metabolism in Rats (탄수화물 급원에 따른 HCA의 공급이 흰쥐의 체중 및 지질 대사에 미치는 영향)

  • Son, Young-Ae;Jeong, Hye-Jin;Shim, Jee-Ae;Kwon, Sang-Hee;Kim, Mi-Kyung
    • Journal of Nutrition and Health
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    • v.40 no.8
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    • pp.675-683
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    • 2007
  • This study was conducted to investigate the effects of feeding different carbohydrate sources and garcinia cambogia extract(HCA) on body weight and lipid metabolism. Fifty 10-month-old male Sprague-Dawley rats weighting $635{\pm}6g$ were randomly divided into 5 groups and fed different experimental diets for 4 weeks. The carbohydrate(CHO) sources of each group were cornstarch(control group, 100% of CHO), fructose(F group and FH group, 25% of CHO) and sucrose(S group and SH group, 25% of CHO). FH group and SH group were fed diets containing 1%(W/W) of HCA. Food intake, body weight gain, and calorie efficiency were not significantly different among the groups. Perirenal fat pad weight of FH group was significantly lower than F group, but epididymal fat pad weight was not different among the groups. Fasting glucose level were not significant among the groups. Plasma lipid profile of FH or SH group was slightly lower than F or S group, respectively. The degree of difference of plasma lipid level was greater between F and FH group than those of between S and SH group. In liver, total lipid, triglyceride and total cholesterol level were slightly higher in F group than S group, and tended to be lower in FH group than F group, but tended to be higher in SH group than S group. Liver citrate lyase activity were not significant among the groups. These results suggest that HCA is potential material for reduction of body weight and improvement of plasma lipid profiles. But, there was no difference between fructose intake with HCA and sucrose intake with HCA in reduction of body weight and lipid metabolism.

Physicochemical and organoleptic properties of hot-air dried oriental melon slices prepared using different physical pretreatments

  • Young Min Kim;Minhui Kim;Yujung Jung;Jiyoon Kim;Jung Soo Kim;Dong Hyun Kim;Sae-Byuk Lee;Juhyun Kim;Sang-Han Lee;Kwang-Deog Moon;Seockmo Ku;Deokyeong Choe
    • Food Science and Preservation
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    • v.31 no.2
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    • pp.218-226
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    • 2024
  • The oriental melon poses challenges in terms of long-term storage and distribution. Addressing these issues requires an extension of the storage life through appropriate processing. In this study, pretreated hot-air dried oriental melon slices (steamed and freeze-thawed) were prepared, and their physicochemical and organoleptic properties were examined. The control group (CON) consisted of hot-air dried oriental melon slices without pretreatment, while the steamed group (STG) and freeze-thawed group (FTG) consisted of hot-air dried oriental melon slices pretreated using steaming and freeze-thawing methods, respectively. The moisture contents detected in the CON, STG, and FTG groups ranged from 15.96% to 27.30%, with variations of 7.53 to 8.40 °Brix for the soluble solid contents. The CON group showed the highest Hunter color value for lightness (L*) and the lowest value for redness (a*). The texture profile analysis revealed the highest hardness and chewiness in the order of STG > CON > FTG. Considerable differences were observed in springiness and adhesiveness in the FTG group compared to the other groups. The organoleptic evaluation showed that the CON group had the highest sensory scores for overall preference. These findings indicate that the properties of hot-air dried oriental melon slices were influenced by physical pretreatments and that manufacturing these slices without pretreatment is the most effective method in terms of processing simplicity and cost efficiency.

Effects of Food Consumption Monitoring Using a Camera-Phone on Body Weight and Serum Lipid Level in Obese Female College Students (비만여대생을 대상으로 카메라폰을 이용한 음식섭취 모니터링 강화에 의한 체중 및 혈청지질 감소 효과)

  • Kim, Young-Suk;Kim, Yun-Joo;Hong, In-Sun;Kim, Seon-Hee;Chang, Un-Jae
    • Journal of the Korean Dietetic Association
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    • v.18 no.2
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    • pp.115-125
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    • 2012
  • This study was conducted to investigate the effects of food consumption monitoring using a camera-phone in a weight control program. Twenty-six female college students (>30% body fat) were randomly assigned to the camera-phone and diary (CD) group or diary (D) only group. During the 8-week weight control program, the CD group controlled their food consumption using a camera-phone, in which they took a food picture and uploaded it to the homepage. However, the D group used only a diary to record their food intake. The mean energy intake of the CD group during the program was 1451.9 kcal while that of the D group was 1524.3 kcal. The total energy intakes of both groups significantly decreased during the program. The CD group lost 5.2 kg of body weight and 3.1% body fat while the D group lost 2.2 kg of body weight and 1.1% body fat. The body weight and fat levels significantly decreased in the CD group compared to the D group. The triglyceride, total-cholesterol and LDL-cholesterol levels of the CD group as well as the total-cholesterol level of the D group significantly decreased during the program. The total-cholesterol and LDL-cholesterol levels both significantly decreased in the CD group compared to the D group. In this study, it was concluded that digital photography method using a camera-phone might influence weight control through trained consumption monitoring, which helps individuals reduce discrepancies between perceived and actual consumption levels.