• Title/Summary/Keyword: 식품R&D

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Problems with Agricultural Research and Development in Korea and Improvement Strategies Based on Foreign Examples with a Focus on the Ministry of Agriculture and the Rural Development Administration

  • Kang, Chung Han;Moon, Jung Hun;Kim, Nam Jung;Yun, Young Duk;Lee, Sung Chul
    • Agribusiness and Information Management
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    • v.3 no.1
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    • pp.38-66
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    • 2011
  • The dissemination process of agricultural research and development (R&D) results has somewhat different characteristics from that of typical R&D results. However, these characteristics are not adequately considered on the basis of an examination of the current performance system, the resulting management plans, and strategies for the application and dissemination of the results of agricultural R&D in Korea. The performance evaluation indicator exposed the problem of the inadequate consideration of the characteristics of each of these areas, particularly the lack of unified R&D-related institutions and the inadequacy of the system to monitor outcomes. To address these shortcomings in the agricultural R&D programs in Korea, the policies pertaining to agricultural R&D performance, results management, and dissemination in the U.S. and Japan were examined. Based on these investigations, we proposed strategies to improve the agricultural R&D policies in Korea.

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The Treatment of Industrial Wastewater by the Fluidized-Bed Biofilm Reactor (미생물막 유동층 반응기를 이용한 산업폐수 처리에 관하여)

  • Suh, Myung-Gyo;Suh, Jung-Ho;Kang, Jun-Soo
    • Korean Journal of Food Science and Technology
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    • v.25 no.1
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    • pp.69-77
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    • 1993
  • Substrate removal efficiency of industrial wastewater from dye plant was investigated with fluidized-bed biofilm reactor(FBBR). Wastewater was diluted by 2, 3 and 6 times for experiment. When F/M ratio was increased 0.2 to 0.3, substrate removal efficiency of wastewater was rapidly decreased in all dilution ratio. Substrate removal efficiency was increased with dilution ratio in same F/M ratio, with hydraulic retention time. In case of 6 times diluted wastewater, below 0.2 F/M ratio, removal efficiency of BOD was $90{\sim}97%$. For reactor design, the parameters such as Y, $k_d$ and r was obtained as follows: $Y=0.3365\;k_d=0.03782\;day^{-1}\;r=0.997$ in 2 times diluted $Y=0.3341\;k_d=0.02750\;day^{-1}\;r=0.996$ in 3 times diluted $Y=0.3365\;k_d=0.03434\;day^{-1}\;r=0.998$ in 6 times diluted

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Effects of xylooligosaccharide-sugar mixture on glycemic index (GI) and blood glucose response in healthy adults (자일로올리고당을 함유한 설탕이 건강한 성인의 Glycemic Index (GI)와 혈당에 미치는 효과)

  • Kyung, Myungok;Choe, HanSaem;Jung, Sangwon;Lee, Kyungsun;Jo, SungEun;Seo, Sheungwoo;Choe, Keunbum;Yang, Chang-Kun;Yoo, Sang-Ho;Kim, Yuri
    • Journal of Nutrition and Health
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    • v.47 no.4
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    • pp.229-235
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    • 2014
  • Purpose: The objective of this study was to investigate the effects of xyloologosaccharide (XOS)-sugar mixture on glycemic index (GI) and blood glucose in human subjects. Methods: Randomized double-blind cross-over studies were conducted to examine the effect of sucrose with 14% xyloologosaccharide powder (Xylo 14) and sucrose with 20% xylooligosaccharide powder (Xylo 20) on GI and postprandial glucose response at 15, 30, 45, 60, 90, and 120 min. Results: GIs of Xylo 14 and Xylo 20 were $60.0{\pm}23.5$ classified within medium GI range, and $54.3{\pm}17.7$ within low GI range, respectively. Xylo 14 and Xylo 20 showed significantly lower area under the glucose curve (AUC) for 0-15 min (p = 0.0113), 0-30 min (p = 0.0004), 0-45 min (p < 0.0001), 0-60 min (p < 0.0001), 0-90 min (p < 0.0001), and 0-120 min (p = 0.0001). In particular, compared with glucose, the blood glucose levels of Xylo 14 and Xylo 20 were significantly lower at every time point between 15 and 120 min. Conclusion: The results of this study suggested that Xylo 14 and Xylo 20 had an acute suppressive effect on GI and the postprandial glucose surge.

Changes in chemical characteristics of cellulase-treated wheat germ extract (효소 처리 밀 배아 추출물의 화학적 특성 변화)

  • Lee, Jae-Kang;Jang, Davin;Kang, Dongwoo;Lee, Jeonghoon;Kum, Hyeim;Choi, Yonghyoun;Kang, Hee;Choi, Yong-Seok;Kim, Dae-Ok
    • Korean Journal of Food Science and Technology
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    • v.51 no.2
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    • pp.97-102
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    • 2019
  • Wheat germ, which is rich in nutrients and phytochemicals, is a by-product during the milling process of wheat kernel. In this study, we aimed to increase the amount of bioactive 2,6-dimethoxy-1,4-benzoquinone (2,6-DMBQ) in wheat germ using the cell-wall-degrading enzyme cellulase (Celluclast 1.5L). The amounts of organic acids, free sugars, and 2,6-DMBQ in wheat germ treated with Celluclast 1.5L were evaluated at various reaction times and temperatures. The results of reversed-phase high-performance liquid chromatography of Celluclast 1.5L-treated wheat germ revealed 2,6-DMBQ, four organic acids (tartaric, acetic, lactic, and succinic acids), and three free sugars (sucrose, fructose, and glucose). As reaction time and temperature of the mixture of wheat germ and Celluclast 1.5L increased, the contents of four organic acids, glucose, fructose, and 2,6-DMBQ increased, but that of sucrose decreased. Taken together, these results suggest that Celluclast 1.5L-treated wheat germ containing increased amounts of 2,6-DMBQ serves as a source of functional ingredients in food industry.

New Technology Trends: Food and New Function (신기술 신소재/해외기술 - 신기술동향: 식품의 주목받는 기능)

  • Park, Jungmin
    • Bulletin of Food Technology
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    • v.25 no.2
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    • pp.156-161
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    • 2012
  • 글로벌동향브리핑(GTB)에서는 100여명의 국내 외 과학기술 전문가가 농림 수산, 생명과학, 보건 의료 등 19개 주제로 해외 과학기술동향을 소개하고 있다. 이를 바탕으로 식품분야의 연구주제를 선정해 최신 해외과학기술 주요동향을 요약하여 재정리 하고자 한다.

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Screening and Identification of the Fibrinolytic Bacterial Strain from Jeot-Gal, Salt-fermented Fish (젓갈류로부터 혈전용해 균주의 분리 및 동정)

  • Jang, Young-Ryeol;Kim, Won-Keuk;Kwon, Ik-Boo;Lee, Hyun-Yong
    • Korean Journal of Food Science and Technology
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    • v.30 no.3
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    • pp.655-659
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    • 1998
  • Bacterial strain showing the strong fibrinolytic activity (2.04 plasmin unit) was screened from Jeot-Gal, Korean salt-fermented fish collected from various region. For the identification, when the strain was characterized morphologically, culturally, and biochemically, it was identified to Bacillus pumilus. And, when the fatty acids composition of the strain was analyzed, it was identified to Bacillus atropheus. Finally, the 16S rRNA partial sequence (V3 region) showed that the fibrinolytic stain screened from Jeot-Gal was identified as Bacillus subtilis. So, we named it Bacillus subtilis KJ-48.

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A Study on the Deterministic Evaluation Method of R&D Project in Food Industry (식품산업 연구개발의 결정론적 평가방법에 관한 연구)

  • 이종만;이근희
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.14 no.23
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    • pp.57-64
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    • 1991
  • The preliminary, advanced and final evaluation of R&D project is essential in order to reduce loss of resource and opportunity and to minimize uncertainty resulting from optimal selection and efficient progress of R&D project. This thesis examined characteristics of deterministic evaluation, economical evaluation, and OR-approach evaluation as theoretical methodology of evaluation of R&D project applicable to food industry in Korea by using scoring method, one of deterministic evaluations. In addition, this thesis divided the evaluation factors for preliminary evaluation of R&D project into 5 groups and 30 factors on basis of the environment of domestic companies and set up the standard of each evaluation factors and contains marking-selecting way. But, generally, the evaluation model by this thesis, as the conditions of the business company environment are different to each other, contents to be set up evaluation factors, evaluation standard and decision method conforming to each the environment of the business companies with referring to as one standard of evaluation project for selecting R&D project.

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Effect of Different Commercial Oligosaccharides on the Fermentation Properties in Kefir during Fermentation

  • Oh, Nam Su;Lee, Hyun Ah;Myung, Jae Hee;Lee, Ji Young;Joung, Jae Yeon;Shin, Yong Kook;Baick, Seung Chun
    • Food Science of Animal Resources
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    • v.33 no.3
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    • pp.325-330
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    • 2013
  • Kefir is traditional fermented milk produced by various lactic acid bacteria (LAB) and yeast, which produce lactic acid, ethanol, carbon dioxide, and other flavor compounds. The purpose of this study was to evaluate the effects of different commercial oligosaccharides, such as maltotriose, fructooligosaccharide (FOS), galactooligosaccharide (GOS), and isomaltooligosaccharide (IMO), on the fermentation properties of kefir. First, we determined the acidification kinetic parameters, such as $V_{max}$, $t_{max}$(h), $t_{pH5.0}$(h), and $t_f$(h) of fermented milk supplemented with 4% (w/w) of different oligosaccharides. The probiotic survival and chemical composition (pH, organic acids profile, and ethanol content) of kefir during fermentation were also measured. Compared to control fermentation, all oligosaccharides increased acidification rate and reduced the time to complete fermentation (pH 4.7). The addition of FOS, in particular, resulted in the lowest $t_f$(h) and the highest populations of LAB and yeast during fermentation. All oligosaccharides increased ethanol production during fermentation. Further, significant differences were observed in the formation rates of six organic acids during fermentation. This study provided comparative data on the properties of commercial oligosaccharides for kefir manufacturing. Consequently, FOS especially had the potential for adequate and effective oligosaccharides in commercial kefir for the improvement of cost- and time-effectiveness.