• 한국식품과학회지
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• 제30권2호
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• pp.278-282
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• 1998

편의성과 신선함을 동시에 추구하는 최소가공채소류의 저장 유통중에 품질을 저하시키는 요인중의 하나인 갈변을 억제할 수 있는 적절한 갈변방지제를 선발하기 위하여 ascorbic acid, citric acid 및 allyl isothiocynate (AITC)의 농도를 달리하여 깐마늘, 콩나물, 절단 양파 및 절단 풋고추에 처리하여 저장하면서 이들의 효과를 검토한 결과는 다음과 같았다. 즉 깐마늘은 citric acid 1%, 콩나물은 ascorbic acid 1%, 양파는 citric acid 2%, 풋고추는 ascorbic acid 1% 처리시에 색차가 비교적 낮게 나타나 갈변 억제에 효과가 있는 것으로 나타났다. AITC는 마늘에 있어서 저장 10일까지는 갈변 억제의 효과가 있었으나 다른 품목에 있어서는 오히려 갈변을 촉진하는 것으로 나타났다. 깐마늘은 저장 기간이 경과함에 따라서 시료 표면의 갈변 정도와 polyphenol oxidase의 역가가 증가하였으나 절단 풋고추는 갈변 정도가 커짐에 따라 효소의 역가가 오히려 감소하는 것으로 나타났다.

• 한국식생활문화학회지
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• 제31권1호
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• pp.33-41
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• 2016

The purpose of this study was to examine the difference in nutritional knowledge and food preferences according to food-related lifestyle among 400 married women. Using the K-average clustering method, food-related lifestyles of subjects were categorized into three clusters: rational and diversity-oriented group, convenience-oriented group, and health-oriented group. The nutritional knowledge level and food preferences among three clusters were compared to each other using ANOVA test. The findings were summarized as follows: For the nutritional knowledge level, health-oriented group showed the highest mean score, whereas the lowest score was detected in the convenience-oriented group. The convenience-oriented group showed higher preferences for fish, meat, eggs, fruits, milk/dairy products, seaweed, grains, etc. among natural food than the other groups. Meanwhile, the rational and diversity-oriented group preferred legumes, and green vegetables, whereas the health-oriented group showed preferences for other vegetables. However, the convenience-oriented group reported more preferences for breads, noodles, pancakes, fried/stir-fried food, and processed food such as sausage, ham, and fast food, This study found that nutritional knowledge level and food preferences were significantly different according to food-related lifestyles of married women living in Seoul and Gyonggie areas. Thus, it is suggested that nutritional education targeting married women needs to be carefully designed by considering their food-related lifestyle.

• 한국게임학회 논문지
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• 제3권2호
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• pp.35-41
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• 2003

게임 엔진에서 처리하는 속성과 절차가 매우 유사한 많은 게임 소프트웨어들이 다른 게임 에서 참조하거나 재사용하지 않고 새로운 게임을 개발할 때 게임엔진 부분에 대한 중복투자 문제가 발생한다. 특히 현재 게임 소프트웨어 개발사들이 게임을 개발할 때 매우 다양한 소프트웨어 개발 프로세스를 사용하고 있는 것이 중복투자의 주된 문제점 중 하나이다. 그러므로 게임엔진에 대한 프로세스의 표준화가 되어있지 않아 현재 개발 중인 게임 소프트웨어에 다른 소프트웨어 개발과정에서 생성된 산출물을 이해하고 재사용할 수가 없다. 따라서 어느 게임 소프트웨어 개발사가 특정 게임을 개발할 때 다른 게임 소프트웨어와 동일한 게임 엔진 처리에 대하여 새롭게 분석하고 설계하는 것이 현재의 게임 소프트웨어가 안고 있는 커다란 문제점이다. 이러한 문제점을 해결하기 위해 본 논문에서는 컴포넌트 기반 개발방법을 적용할 수 있도록 게임 엔진 개발에 대한 공정개선, 구조와 관계성 분석, 계층별 모듈별 분류와 조합 방법, 저장소 구현, 프로세서 모형을 제시하였다.

• 한국수산과학회지
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• 제56권2호
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• pp.196-203
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• 2023

We investigated the nutritional characteristics and antioxidant effects of sea mustard Undaria pinnatifida fractions from Gultongmeori in Taejongdae, Youngdo, Busan. Based on dry weight, the moisture, crude protein, crude lipid, crude ash, and crude fiber contents were 34.98%, 11.55%, 0.43%, 17.82%, and 3.45%, respectively. To evaluate the antioxidant effect, we used radical scavenging (DPPH and ABTS), reactive oxygen species (ROS) production measurement, and DNA oxidation assays. Total flavonoid and phenol contents were higher in the n-hexane fraction than in other fractions. The n-hexane fraction was more effective at scavenging free radicals than other fractions as assessed using DPPH and ABTS assays (P<0.05). The ROS production assay showed that all sea mustard fractions decreased H₂O₂ induced cellular ROS production compared to that seen in the control (P<0.05); however, the n-hexane fraction reduced cellular ROS production to a greater extent than the other fractions. Furthermore, the n-hexane fraction from Gultongmeori significantly inhibited genomic DNA oxidation. These results indicate that the antioxidant effect of sea mustard is associated with its high flavonoid and phenol content. This study proposes that processed food products supplemented with sea mustard can be developed as functional foods to promote health in the local population.

• 한국축산식품학회지
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• 제37권2호
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• pp.162-167
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• 2017

Functional and nutritional soluble proteins can be recovered from surimi (and surimi-like material) processing wastewater, reducing environmental problems and the cost of an irresponsible waste disposal. Recovered proteins may be added back at a low percentage to surimi products. The aim of this work was to evaluate the effect of the addition of soluble recovered proteins (RP), obtained from mechanically separated chicken meat surimi-like material (MSCM-SLM) processing wastewater by acidic pH-shifting, on the composition and texture of RP-MSCM-SLM, with RP contents of 0, 10, 20 and 30% (w/w) in the mixture. For that, proximate composition and gel properties were evaluated. The fat content of the MSCM-SLM was significantly reduced to 11.98% and protein increased to 83.64% (dry basis) after three washing cycles. The addition of 30% RP in the MSCM-SLM significantly augmented the protein content to 93.45% and reduced fat content from to 2.78%. On the other hand, the addition of RP was responsible for a drastic decrease in texture parameters, reaching 252.36 g, 185.23 g.cm, and 6.97 N for breaking force, gel strength and cutting strength, respectively, when 30% of RP was included in the MSCM-SLM. It was concluded that the obtained intermediary product (RP-MSCM-SLM) is a good option to applications in processed meat products where high texture parameters are dispensable, e.g., emulsified inlaid frankfurter-type sausages, but high protein content and low fat content desired.

• 한국식품영양학회지
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• 제22권2호
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• pp.199-204
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• 2009

For the purpose of developing a safe & hygienic manufacturing method to acquire low levels of benzo(a)pyrene in black and red ginseng products, this study investigated the effects of steam- and dry-processing temperatures on benzo(a)pyrene production in ginseng. By the red ginseng with a fix dry-process temperature of $50^{\circ}C$ and setting the steam-process temperature between $80{\sim}120^{\circ}C$, an extremely small amount(0.1 ppb) of benzo(a)pyrene was produced, indicating there was no relationship between the steam-temperature and benzo(a)pyrene production. On the other hand, when the red and black ginseng were steamed at the fixed temperature of $100^{\circ}C$ and dried at various temperatures between $50{\sim}120^{\circ}C$, the amount of benzo(a)pyrene produced was closely connected with the dry-temperature, and increased with higher drying temperatures. Upon repeating the steam and dry process nine times, in which the steam-temperature was set at $100^{\circ}C$ and the dry-temperature at $50^{\circ}C$, higher amount of benzo(a)pyrene were produced in red and black ginseng, respectively, with increasing steam- and dry-processing time. However, the level of benzo(a)pyrene still remained extremely small(below 0.12 ppb), showing a maximum amount in the black ginseng that was steamed and dried nine times. This suggests that the fine root of ginseng may be carbonized by increasing the number of times it is steam- and dry-processed. From the above results, this study determined that the optimum temperatures for manufacturing red and black ginseng products with safe levels of benzo(a)pyrene would be a temperature between 80 and $120^{\circ}C$ for steaming and a temperature less than $50^{\circ}C$ for drying.

• 한국식품영양학회지
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• 제23권1호
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• pp.124-133
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• 2010

The total number of the dogs bred in Korea as of 2007 was 1,917,709, and among them, 77%, 1,476,776 dogs were edible dogs. Dogmeat has been legalized edible as food from Choseon dynasty, Daehan imperial state, Japan-occupied era till the present Korea. Dogs had been included in the article 2, Enforcement Ordinance of Processing and Disposal Rule of Livestock and Its Products until the end of Jan. 1979, but it was crossed out by the Notification No 3,005(Feb. 1 1979 effective) of the Minister of Agriculture and Marine Products, and as a result, the obligation that dogs should be slaughtered at the slaughtering ground was defunct. Thus, the arbitrarily dog slaughtering was empowered. As a matter of fact, the new law was not legalized in order to ban dogs from being slaughtered. The waste amount of slaughtered edible dogs amounts to 7,282 tons annually, and most of its waste from the arbitrarily-slaughtered dog is being illegally dumped without proper management and supervision. Edible dogs defecate 292,509 tons(calculates urine as dung) annually, but it is sanitarily disposed according to the Law of Management and Use of Livestock's Dung and Urine which took effective from Sep. 2009. Annual sales amount of edible dogs comes to 590 billion won on the basis of the shipment at breeding ground, but after passing through various level of marketing, and being processed as Gaesoju, and Boshintang, it forms 4 trillion won market when it reaches customers. The amount of food waste in Korea in 2007 came to 5,274,944 tons, and 633 billion won was spent for its disposal cost. Korean edible dogs of 1,476,776 heads consumed 1,266,705 tons, the 24% of total food waste. Edible dogs are the most effective means to convert food waste into food for man, not entailing the cost of disposal. On the other hand, pet dog culture brought about disposal cost, and the 51,188 dogs were abandoned at 2007, while 7 billion won was spent for the protection, euthanasia of them and the disposal of their dead bodies.

• Journal of Biosystems Engineering
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• 제22권4호
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• pp.439-450
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• 1997

Most of Korean feed mill has a pregrind system which was suitable for the processing of less number of ingredients and finished products, and good for the mash type feed product. But industries has been changed in production volume and cost, and also from mash to further processed products such as pelleted and extruded. Therefore, Korea feed industries now should change the process, especially the grinding system from the current pregrind to other grind system, but this change will cost a lot of investment and also loosing current grinding system, and should have production shut down during the construction period. To solve these problems, combined grinding system based on a new model mill has been developed. The combined grind system is combination of pregrind and postgrind system, which has the advantages of those two grind systems, and also which can allow to utilize existing pregrind system continuously without any production interruption due to new postgrind system construction. This newly developed model has been applied to the feed mill expansion project of `B`feed company in 1994, and it was very successful application and showed excellent results as we intended. The new model mill, combined grind system applied can save fixed asset investment because old pregrind system can be used as is, and also can reduce production cost and improve product quality. And the possibility of critical production shut down can be much lowered. Within this new grinding model development, multi-screen combination system has been developed for the better grinding texture quality and safer operation. This new model mill with combined grind system will be applied by most feed manufacturing plant and may enhance their production competitiveness, and the further study and development should be continued.

• Journal of the Korean Wood Science and Technology
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• 제48권5호
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• pp.591-607
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• 2020

This study was aimed to investigate the changes of chemical composition of the volatile organic compounds (VOCs) emitted from red pine needles in the process of needle abscission or senescence. The VOCs in intact, senescent, and litter red pine needle samples were analyzed by headspace-solid phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC/MS). And then, multivariate statistical interpretation of the processed data sets was conducted to investigate similarities and dissimilarities of the needle samples. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were used to investigate the dataset structure and discrimination between samples, respectively. From the data preview, the levels of major components of VOCs from needles were not significantly different between needle samples. By PCA investigation, the data reduction according to classification based on the chlorophyll a / chlorophyll b (Ca/Cb) ratio were found to be ideal for differentiating intact, senescent, and litter needles. The following OPLS-DA taking Ca/Cb ratio as y-variables showed that needle samples were well grouped on score plot and had the significant discriminant compounds, respectively. Several compounds had significantly correlated with Ca/Cb ratio in a bivariate correlation analysis. Notably, the litter needles had a higher content of oxidized compounds than the intact needles. In summary, we found that chemical compositions of VOCs between intact, senescent, and litter needles are different each other and several compounds reflect characteristic of needle.

• 한국식생활문화학회지
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• 제36권5호
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• pp.474-483
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• 2021

The intake of processed foods containing high levels of sugar increases the incidence of chronic diseases, including obesity, diabetes, and metabolic syndrome. Limiting sugar intake is important for a healthy life at all ages. Therefore, this study analyzed food sources and sugar intake by the different age groups based on the 7^th Korea National Health and Nutrition Examination Survey (KNHANES). We used 24-hour recall survey data to investigate the daily sugar intake and the major food groups and main dishes contributing to sugar intake. The mean sugar intake was 58.9-66.8 g/day. The three major food groups contributing to sugar intake were fruits (15.2-19.9 g/day), beverages (10.7-12.4 g/day), and milk and milk products (7.6-7.8 g/day). Teas and other non-alcoholic beverages (14.7-17.3 g/day), fruits (12.5-16.2 g/day), and dairy products (7.0-7.6 g/day) were the major food groups that contributed to the sugar intake. Carbonated drinks, apples, and milk were the top sources of sugar intake in each group. In conclusion, the sugar intake of Koreans is mainly from carbonated drinks, fruits, and milk. These results provided the basic data for nutrition education and nutrition program development according to the different age groups of the Korean population.