• Title/Summary/Keyword: food ecology

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The Path Analysis of Consumers' Decision-making to Purchase GMO Foods and Request for Labelling It (소비자의 유전자재조합 콩 식품 구매의사 및 표시요구에 대한 경로 분석)

  • Huh, Kyung-Ok
    • Korean Journal of Human Ecology
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    • v.12 no.3
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    • pp.351-362
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    • 2003
  • The goal of this study was to examine the effects of perceived risks toward GMO (Genetically Modified Organism) food on the decision-making to purchase it and demands to reveal its Identity. The major results were as follows. First, consumers strongly perceived the risk toward GMO food, and demanded labeling to identify it. But, many consumers had indecisive in the purchase of GMO food. Second, consumers with high level of perceived risks toward GMO food were more likely not to buy GMO food. In addition, the level of perceived risk was high among consumers who had many children. Finally, consumers with high level of perceived risks toward GMO food were more likely to demand the labelling for identifying GMO food. Consumers who had many children and high level of reliability for labelling food safety strongly demanded to label for revealing GMO food.

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Fermented Kochujang Supplement Shows Anti-obesity Effects by Controlling Lipid Metabolism in C57BL/6J Mice Fed High Fat Diet

  • Koo, Bon-Sun;Seong, So-Hui;Kown, Dae-Young;Sohn, Hee-Sook;Cha, Youn-Soo
    • Food Science and Biotechnology
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    • v.17 no.2
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    • pp.336-342
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    • 2008
  • The aim of the present study was to assess the anti-obesity effects of fermented kochujang supplement in C57BL/6J mice. Thirty mice were divided into 3 groups; normal diet control group (ND), high fat diet control group (HD), and high fat diet plus kochujang supplemented group (HDK). Results were as follows: 1. Fennented kochujang supplement in high fat diet decreased body weight and epidydimal and back fat weight compared to non-supplement in HD group. 2. Lipid content and blood glucose level were lower in HDK group than HD group. 3. Fermented kochujang supplement increased mRNA level of lipolytic genes such as acyl-CoA synthetase (ACS), carnitine palmitoyltransferase-1 (CPT-1), and uncoupling proteins-1 (UCP-1) expression, whereas decreased mRNA level of adipogenic genes such as acetyl CoA carboxylase (ACC) expression. These findings suggest that fermented kochujang supplement in high fat diet normalized body weight, epididymal and back fat weight, lipid content, and blood glucose levels through controlling lipid metabolism and provides basic information on the control of obesity.

Predicting Methane Production Potential of Anaerobic Co-digestion of Swine Manure and Food Waste

  • Shin, Joung-Du;Han, Sung-Su;Eom, Ki-Cheol;Sung, Shi-Hwu;Park, Sang-Won;Kim, Hyun-Ook
    • Environmental Engineering Research
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    • v.13 no.2
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    • pp.93-97
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    • 2008
  • Anaerobic co-digestion of swine manure and food waste for biogas production was performed in serum bottles at 2% volatile solids(VS) concentration and various mixing ratios of two substrates(swine manure: food waste = 100 : 0 $\sim$ 0 : 100). Through kinetic mode of surface methodology, the methane production was fitted to a Gompertz equation. The specific methane production potential of swine manure alone was lower than that of food waste. However, maximum methane production potential increased up to 1.09-1.22% as food waste composition increased up to the 80%. The maximum methane production value of food waste was 544.52 mL/g VS. It was observed that the maximum methane production potential of 601.86 mL/g VS was found at the mixing ratio of 40:60.

Development of Functional Yogurts Prepared with Mulberries and Mulberry Tree Leaves

  • Lee, An-Cheol;Hong, Youn-Ho
    • Food Science of Animal Resources
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    • v.30 no.4
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    • pp.649-654
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    • 2010
  • In order to develop new functional yogurts using mulberries and mulberry leaves, which were cultivated in Hwasun-gun, Jeonnam Province, Korea, the nutritional compositions, fermentation conditions, sensory properties, and storage stabilities of the yogurts were analyzed. The mulberry powder yogurt contained 87.96% moisture, 3.21% carbohydrate, 4.52% protein, 3.63% lipid, and 0.68% ash, and the mulberry leaf yogurt contained 86.36% moisture, 4.13% carbohydrate, 4.87% protein, 3.79% lipid, and 0.85% ash. A yogurt base was fermented for 13 h with 0.01% ABT-5 starter inoculum at $40^{\circ}C$. To prepare the mulberry jam and mulberry leaf yogurts, a variety of mulberry jam and mulberry leaf samples were added to the yogurt base. The sensory evaluation results of the yogurts containing the mulberry jam and mulberry leaves indicated that a product made with 15% mulberry jam was more strongly preferred than other samples. When the mulberry jam and mulberry leaf yogurts were stored at $4^{\circ}C$ for 15 d, there were no significant changes in pH, titratable acidity, or viable cell numbers of lactic acid bacteria and Bifidobacterium bifidum.

A Study on the Vegetable Intake-Related Factors and Moderated Variables (채소섭취량과 관련된 요인 및 조절변수에 관한 연구)

  • Kang, Jong-Heon;Jeong, Hang-Jin
    • Korean Journal of Human Ecology
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    • v.17 no.3
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    • pp.511-519
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    • 2008
  • The purpose is to investigate the factors moderating the relationships between food choice motives such as health concern, weight control and ethical concern, and vegetable intake. Data were collected from adult people(N=290) in Jeonnam Province for finding the correlation of the food choice motives and the moderated variables as food involvement and food neophobia with vegetable intake. Moderated regression analysis was used to analyse the survey data. The results indicates that the moderated variables of food involvement and food neophobia significantly affect vegetable intake. However, the food choice motives of health concern, weight control, ethical concern do not have significant effects on vegetable intake. The findings can help adult people prefer healthy eating.