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Lipid Oxidation and Stability of Tocopherols and Phospholipids in Soy-added Fried Products During Storage in the Dark

  • Yoon, Young-Jin;Choe, Eun-Ok
    • Food Science and Biotechnology
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    • v.18 no.2
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    • pp.356-361
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    • 2009
  • Lipid oxidation and contents of tocopherols and phospholipids (PL) in soy-added fried products during storage in the dark were studied. Flour dough containing soy flour at 0, 10, 20, and 30% on a weight basis was fried in corn oil at $180^{\circ}C$ for 2.5 min. The fried products were stored at $60^{\circ}C$ for 11 days in the dark. Lipid oxidation of the fried products was evaluated by conjugated dienoic acid (CDA) and p-anisidine values (PAV). Tocopherols and PL were determined by high performance liquid chromatography (HPLC). CDA contents and PAV of the fried products were increased during storage, and addition of soy flour improved lipid oxidative stability of the fried products, which was partly related to increased amount of tocopherols and PL in the soy-added fried products. Tocopherols and PL were degraded during the dark storage of the fried products. Soy flour addition to the dough did not affect the rate of tocopherols degradation during storage of the fried products; however, PL degradation was higher in the soy-added fried products. Residual amounts of $\alpha$-tocopherol and phosphatidylinositol showed high correlations with the lipid oxidation of the fried products during storage in the dark.

Effect of Active Synthetic 2-Substituted Quinazolinones on Anti-Platelet Aggregation and the Inhibition of Superoxide Anion Generation by Neutrophils

  • Chang, Fang-Rong;Wu, Chin-Chung;Hwang, Tsong-Long;Patnam, Ramesh;Kuo, Reen-Yen;Wang, Wei-Ya;Lan, Yu-Hsuan;Wu, Yang-Chang
    • Archives of Pharmacal Research
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    • v.26 no.7
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    • pp.511-515
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    • 2003
  • Quinazolinones, 2-substituted and 3-substituted, mainly synthesized by microwave irradiation, were subjected to anti-platelet aggregation and inhibition of superoxide anion generation assays. Interestingly, 2-phenyl-4-quinazolinone (4) exhibited significant inhibitory activities toward platelet aggregation and neutrophil activation, and it might therefore serve as a prototype lead compound.

Comparative Study of Intramuscular Phospholipid Molecular Species in Traditional Chinese Duck Meat Products

  • Wang, D.Y.;Zhu, Y.Z.;Xu, W.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.10
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    • pp.1441-1446
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    • 2009
  • Composition of intramuscular lipids, phospholipid classes and phospholipid molecular species in traditional Chinese duck meat products was investigated. Free fatty acids and phospholipids were identified and quantified by gas and high performance liquid chromatography, and phospholipid molecular species were determined by mass spectrometry. The results showed that raw duck meat had high quantities of phosphatidylethanolamine and phosphatidylcholine. The percentages of phospholipid classes decreased during three kinds of processing of duck meat products. A selective degradation of phospholipid molecular species with polyunsaturated fatty acids was found in dry-cured duck, but was not found in roasted and water-boiled duck products.

Fish Fermentation Technology (수산발효기술)

  • Lee Cherl-Ho
    • Microbiology and Biotechnology Letters
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    • v.17 no.6
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    • pp.645-654
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    • 1989
  • The historical background of fish fermentation in Asia and other regions of the world is reviewed. The classification of fermented fish products in different regions is attempted with respect to the technology involved. The fermented fish products are largely divided into three groups; (1) high-salt, (2) low-salt, and (3) non-salt fermented. High-salt fermented products contain over 20% of salt and are represented by fish sauce, cured fish and fish paste. Low-salt fermented products contain 6-18% salt and are subdivided into lactic fermented products with added carbohydrate and acid pickling associated with low temperature. Non-salt fermented products are represented by the solid state bonito fermentation and some alkaline fermentation of flat fishes. The local names of the products in different regions are compared and classified accordingly. The microbial and biochemical changes during fish fermentation are considered in relation to the quality of the products, and their wholesomeness is reviewed.

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Screening of Deoxynivalenol Producing Strains from Agricultural Products by Immunoanalytical Method (면역분석기법에 의한 농산물에서의 Deoxynivalenol생성균 검색)

  • 강성조;오상석;박정현;김형갑;장덕화
    • Journal of Environmental Health Sciences
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    • v.27 no.4
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    • pp.35-40
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    • 2001
  • In order to evaluate the safety of agricultural products in Korea, we carried out work by screening of Fusarium species. which can produce deoxinivalenol(DON) from agricultural products in Western Gyeongnam, Korea. From 215 samples of soil agricultural products, 129 strains of Fusarium species were obtained. The production of DON was verified by thin layer chromatography(TLC) As the results of TLC, 25 strains were identified as DON producing strain. But only 10 strains were identified as DON producing strains by enzyme-linked immunosorbent assay (ELISA). The maximum DON producing strain No.41 was isolated from corn. In conclusion. the above results indicate that DON producing fungi contaminated agricultural products in Korea. Therefore further studies are required to accumulate more detailed data about the contamination of DON in various agricultural products.

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Expanding the Imports of North Korean Fishery Products (북한산 수산물 반입제약요인 및 확대전략)

  • Sung, Souk-Kyung;Hong, Seong-Gul
    • The Journal of Fisheries Business Administration
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    • v.40 no.3
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    • pp.89-105
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    • 2009
  • South Korea imports more than one hundred tons of fishery products every year from China, Japan, North Korea, etc. However, imported North Korean fishery products was only 4% of the total fishery products imported in 2007. Though South-North Trade as inter-Korean trade is exempted from tax, imports of North Korean fishery products have not been activated owing to import restrictions, insufficient quality control etc. Expanding imports of North Korean fishery products seems, however, to contribute to lessen the supply and demand unbalance in fishery products of South Korea. It will especially gratify a part of fresh and cold fishery products demand. Therefore, we need to expand the imports of North Korean fishery products by quality control improvement, reformation of origin certifying system, import liberalization etc. This study researches the demand and supply of fishery products of South and North Korea, the actual conditions of imports of North Korean fishery products, and suggests strategies to expand their imports. As the greatest reason to oppose imports of North Korean fishery products is the pricing pressure of domestically produced fishery products due to imports of North Korean fishery products, we need to research and analyze the distribution channels, retail markets, sales prices of imported North Korean fishery products to verify that imports of North Korean fishery products has not caused lower pricing of domestically produced fishery products.

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Analysis on Consumption Behaviors Regarding Environment-Friendly Agricultural Products According to the Food-Related Lifestyles of Housewives in Yeungnam Region (영남지역 주부의 식생활 라이프스타일에 따른 친환경농산물 소비행동 분석)

  • Kim, Hyo-Chung;Kim, Mee-Ra
    • Korean Journal of Human Ecology
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    • v.19 no.6
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    • pp.1103-1113
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    • 2010
  • The purpose of this study was to examine the consumption behaviors regarding environment-friendly agricultural products by food-related lifestyles of housewives. The data were collected from 298 housewives living in Yeungnam region through a self-administered questionnaire during April, 2010. Frequencies, Cronbach's $\alpha$, factor analysis, cluster analysis, one-way analysis of variance, Duncan's multiple range test and chi-square test were conducted by SPSS Windows. The results obtained from this study were as follows. Lifestyles were categorized into five factors by factor analysis: healthy-seeking type, popularity-seeking type, convenience-seeking type, safety-seeking type and taste-seeking type. The respondents belonged to one of three groups by cluster analysis: popularity-seeking group, convenience-seeking group, and wellbeing-seeking group. The main reason given for purchasing environment-friendly agricultural products was safety. The respondents were satisfied with the safety of environment-friendly agricultural products the most. Many respondents purchased environment-friendly agricultural products at large discount markets, and received information about them from mass media. There were significant differences among three groups in the place of purchase environment-friendly agricultural products, information source for environment-friendly agricultural products, most important factor when purchasing environment-friendly agricultural products, the level of satisfaction with environment-friendly agricultural products and the purchase rate of environment-friendly agricultural products among the monthly food expenses.

The Effect of Extrinsinc Cues on the Clothing Products Evaluation (의류상품평가에 대한 외재적 단서의 영향)

  • 이선재
    • Journal of the Korean Society of Costume
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    • v.43
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    • pp.125-142
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    • 1999
  • This research was aimed to present a model of clothing products evaluation nd to classify the effect of extrinsic cues on clothing products evaluation. In order to accomplish following subjects were established. First it is to find the effect of extrinsic cues -price brand store - on perceived quality perceived risk perceived value and purchase intention of clothing products. Second it is to formulate a model of clothing products evaluation and find the relation among the variables such as extrinsic cues perceived quality perceived risk perceived value and purchase intention. This research was mainly divided into theoretical and empirical part. In the theoretical part previous theories and studies on clothing products cues clothing products evaluation perceived quality perceived risk and perceived value were examined to establish a research model and to present a theoretical frame for clothing products evaluation. In the empirical research a questionnaire was developed and statistical data were collected from during July 1997. The subjects were 862 women in the age of 20-35 living in Seoul and kyungki region. SAS and LISREL were used to analyze the collected data. frequency percentage factor analysis ANOVA duncan test correlation analysis regression analysis and LISREL were applied. The results of this research are as follows: First perceived quality consists of performance quality external quality and utility quality in a form of multi dimensional structural. Perceived risk is structured by social/resultant risk financial/fashionable risk and performance/management risk. Second this research proved that extrinsic cues are influenced by each individual variable and extrinsic cues interact with each other through the variable. The perceived quality is influenced most by price Among the perceived risk social/resultant risk by brand financial/fashionable risk by price and performance/management risk by store. respectively. Perceived value is inflenced by price and brand. Third in evaluating process consumer use extrinsic cues to first formulate perceived quality and perceived risk of clothing products and then formulate perceived value ot decide on purchase intention.

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Quantification of Carbon Reduction Effects of Domestic Wood Products for Valuation of Public Benefit

  • Chang, Yoon-Seong;Kim, Sejong;Kim, Kwang-Mo;Yeo, Hwanmyeong;Shim, Kug-Bo
    • Journal of the Korean Wood Science and Technology
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    • v.46 no.2
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    • pp.202-210
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    • 2018
  • This study was carried out to quantify degree of contribution of harvested wood product (HWP) on mitigation of climate change by valuation of public benefits, environmentally and economically. The potential carbon dioxide emission reduction of HWP was estimated by accounting carbon storage effect and substitution effect. Based on 2014 statistics of Korea Forest Service, domestic HWPs were sorted by two categories, such as wood products produced domestically from domestic and imported roundwood. The wood products were divided into seven items; sawnwood, plywood, particle board, fiberboard (MDF), paper (including pulp), biomass (wood pellet) and other products. The carbon stock of wood products and substitution effects during manufacturing process was evaluated by items. Based on the relevant carbon emission factor and life cycle analysis, the amount of carbon dioxide emission per unit volume on HWP was quantified. The amounts of carbon stock of HWP produced from domestic and from imported roundwood were 3.8 million $tCO_{2eq}$., and 2.6 million $tCO_{2eq}$., respectively. Also, each reduction of carbon emission by substitution effect of HWP produced from domestic and imported roundwood was 3.1 million $tCO_{2eq}$. and 2.1 million $tCO_{2eq}$., respectively. The results of this study, the amount of carbon emission reduction of HWP, can be effectively used as a basic data for promotion of wood utilization to revise and establish new wood utilization promotion policy such as 'forest carbon offset scheme', and 'carbon storage labeling system of HWP'.

A Survey on Foods of Principal Products in Jeollabukdo Area (전라북도 지역의 주요 특산물 중 식품에 대한 조사)

  • Kim Jeong-Ok;Choi Cha-Ran;Shin Mal-Shick
    • Journal of the East Asian Society of Dietary Life
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    • v.15 no.5
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    • pp.493-503
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    • 2005
  • This survey was performed to investigate the distribution of specialities which cultivated importantly in Jeollabukdo area in order to understand food culture of this area. Foods in speciality were divided into 4 groups, agricultural, aquatic, animal and the others products. Total number of 93 species of specialities, including 40 species of agricultural products, 29 species of aquatic products, 8 species of animal products and 16 species of the miscellaneous products, were identified from Jeollabukdo area. Especially, there were various fruits and vegetables among agricultural products and fishes among aquatic products in this region. Rice, pepper, pear, Mandarin fish, beef, pine mushroom, lentinus edodes and honey were determined as specialities in Jeollabukdo area. Various aquatic products were specialities in Gochang, Gunsan, Buan and Gimje region. Fruits, mushrooms, wild edible greens and animal products were specialities in Muju, Jangsu, Jeongeup and Jinan. Sweet fish, cat fish and freshwater crab were caught off in Sumjin river region only such as Namwon, Sunchang and Imsil, Recently, pumpkin(Cucurbita maxima) and paprika were determined as specialities in Jeollabukdo. In case of aquatic products, mushrooms and wild edible greens, their wild type products decreased, while cultivated type increased Commercialization by brand naming of agricultural and animal products were rapidly increasing. The kinds of specialities in Jeollabukdo area were changing by the influence of geographical, religious and social factors.

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