• 농업과학연구
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• 제8권1호
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• pp.117-125
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• 1981

밤의 가공시(加工時) 열처리방법(熱處理方法)이 밤의 과육(果肉)성분에 미치는 영향을 규명하기 위하여 수자(水煮), 증자(蒸煮), 배초처리(焙焦處理)에 따른 밤의 화학성분(化學成分) 변화(變化)를 검토하여 다음과 같은 결과를 얻었다. 1. 원료(原料)밤의 화학성분(化學成分)은 수분(水分) 59~61%, 총당(總糖) 24~27%, 환원당(還元糖) 0.3%내외(內外), 조단백질(粗蛋白質) 3% 내외(內外), 조지방(粗脂肪) 0.3~0.4%, 조섬유(粗纖維) 0.6~0.9%, 회분(灰分) 1%, amino 태질소(態窒素) 0.3%, vitamin C 20~22mg%, tannin 40~48mg%이었다. 2. 생(生)밤의 수분함량(水分含量)은 59.41%, 수자처리(水煮處理)한 밤은 63.80%, 박피(剝皮)하여 수자처리(水煮處理)한 밤은 70.27%로 증가하였고 배초처리(焙焦處理)한 빔은 54.11%로 감소하였다. 3. 조단백질(粗蛋白質) 함량(含量)에 있어서 생(生)밤은 8.72%, 박피(剝皮)하여 수자처리(水煮處理)한 밤은 8.04%로 감소하였고 amino태질소(態窒素) 함량(含量)은 모든 처리(處理)에 있어서 감소의 경향을 나타냈으며 조지방(粗脂肪) 함량은 별 변화(變化)가 없었다. 4. 총당함량(總糖含量) 변화(變化)는 박피(剝皮)하여 수자처리(水煮處理)한 밤과 배초처리(焙焦處理) 밤은 생(生)밤보다 3% 정도 감소하였고 환원당(還元糖) 함량에 있어서는 모든 처리에 있어서 2~3배 정도 증가하였다. 5. Vitamin C 함량의 변화(變化)에 있어서는 수자처리(水煮處理)한 밤은 생(生)밤에 비하여 72~78%, 증자(蒸煮) 처리(處理)한 밤은 64.2%, 배초처리(焙焦處理)한 밤은 51.6% 감소하였으며 tannin 함량에 있어서는 수자처리(水煮處理)한 밤이 11.0%, 배초처리(焙焦處理)한 밤은 46.0% 정도 증가하였고 박피(剝皮)하여 수자처리(水煮處理)한 밤에 있어서는 22.0% 정도 감소하였다. 6. 배초(焙焦), 증자(蒸煮), 수자처리(水煮處理)한 밤의 색도(色度)는 심한 갈변(褐變)현상을 나타냈으며 0.1% $K_2Al_2(SO_4){_4}{\cdot}24H_2O$ 용액중(溶液中)에서 수자처리(水煮處理)한 밤은 색도(色度)의 변화(變化)가 없었다.

• 한국식품조리과학회지
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• 제13권4호
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• pp.396-401
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• 1997

발효시간을 0∼10시간으로 달리하여 제조한 증편의 발효시간에 따른 물성변화를 검토하였다. 증편의 침입도는 발효시간에 따라 크게 증가하여 발효 7시간에 최대값 134.5를 기록하였다. 비체적과 총공극율도 발효 진행에 따라 크게 증가하여 발효 6시간과 4시간 경에서 각각 최대값 3.5 ㎤/g-dry matter와 54.9%를 나타내었으나 그 이후는 감소하였다. X-ray 회절도상 증편시료 모두 잔존 peak가 관찰되었고 모든 발효시료의 증편단면에서 큰 공극과 작은 공극을 볼 수 있었다.

• 한국식품위생안전성학회지
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• 제23권1호
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• pp.26-30
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• 2008

다환방향족탄화수소는 환경오염이나 식품의 제조공정 과정 중에 생성될 수 있으며, 홍삼은 수증기로 찌고 건조하여 만들어진다. 시료를 핵산으로 추출한 후 물로 세척하고 후로리실 SPE 카트리지로 정제한 후 고속액체크로마토그래피/형광검출기로 분석하였다. 이동상으로는 아세토니트릴과 물의 혼합용액(8:2)을 사용하였으며 형광검출기의 여기파장은 294 nm이었고 형광파장은 404 nm이었다. 평균 회수율은 105%이었으며, 상대표준편차는 0.5이었다. 대상 식품인 홍삼음료 중 벤조피렌은 검출되지 않았다.

• 인터넷정보학회논문지
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• 제7권3호
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• pp.53-60
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• 2006

인터넷을 통해 전송되는 트래픽의 양이 지속적으로 증가하고 있기 때문에 네트워크 트래픽 모니터링 시스템이 모든 패킷을 실시간으로 분석하기는 어렵다. 피어-투피어(P2P), 스트리밍 미디어, 메신저 등과 같이 동적으로 포트 번호를 할당받는 애플리케이션의 사용이 늘어나면서, 사용자들은 이들이 유발하는 트래픽을 분석하기를 원하고 있다. 이 같은 고수준의 분석을 위해서는 각 패킷마다 많은 처리 시간이 필요로 한다. 본 논문에서 부하 차단기를 이용하여 패킷의 수를 제한할 것을 제안한다. 선택된 패킷은 어떤 애플리케이션이 생성한 것인지 식별된 후, 정의된 애플리케이션 계층의 프로토콜에 따라 분석된다.

• 한국환경보건학회:학술대회논문집
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• 한국환경보건학회 2002년도 춘계 국제 학술대회
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• pp.55-56
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• 2002

Aflatoxin is a secondary fungal metabolite and is a public health hazard because it is a human carcinogenic and has many deleterious effects in men and animals. Rice is one of the better substrates for the fungus which can produce aflatoxins. This study was performed to investigate aflatoxin reduction during the cooking and processing of rice. Aflatoxin was produced by Aspergillus parasiticus ATCC 15517 on well-milled rice(Japonica type) at the level of 13.2 ppb. Cooked rice, rice cakes (baek-sol-gi, plain steamed rice bread), fermented rice (sik-hye, sweet rice beverage), and popped rice were prepared from the aflatoxin-contaminated rice. Aflatoxin content in the samples was determined by high performance liquid chromatography. The total aflatoxin level was decreased to 46.9％ in the cooked rice, 85.6％ in the rice cakes, 11.4％ in the fermented rice, and 7.6％ in the popped rice, respectively (p＜0.05). This reduction brought the level of aflatoxins down to below the Standard and Specification of Korea (10 ppb), except for the rice cakes. These results indicate that washing, steaming, fermentation, and popping of rice was helpful in reducing the aflatoxin level in the rice and the most helpful factors were high temperature & high pressure. More research is needed to understand why the preparation of rice cakes did not reduce the level of aflatoxin as much as the other cooking methods.

• 한국의류학회지
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• 제25권1호
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• pp.124-131
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• 2001

To find out the effect of burn out print finishing for better quality of fabric, examined processing which could make less damages on the fiber because the biggest problem is remained fibers damage after burn out print finishing. Fiber damage examined to the condition of finishing material NaHSO$_4$and H$_2$SO$_4$, 3~10min., 100~13$0^{\circ}C$, glycerin. The fiber damages evaluated the break strength and the surface condition by SEM. Among satin, pile fabric which remained fiber is silk, warp knitted fabric which remained fiber is polyester, the fibers damage level were warp knitted fabric$0^{\circ}C$, glycerin and for 6 minutes by NaHSO$_4$. When carbonized by 20%. 50% and 70% to express textile design, carbonizing rate was not effect on the fiber damage very much. There was almost no damages with glycerine, and almost no damages during 3~6minutes fixation time, 10$0^{\circ}C$ steaming heat fixation by NaHSO$_4$and H$_2$SO$_4$. Without glycerine, there were damage by hydrolysis on polyesters surface and the fiver was broken by fixation time.

• 생약학회지
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• 제21권4호
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• pp.274-283
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• 1990

This study was conducted to further characterize mucilages from Dioscoreae Rhizoma, which have been known to be proteoglycans. We chose the two types of yams, Dioscorea batatas Dec. (club-like) and D. japonica Thunb. (cane-like). Repeated gel filtration of a dialyzed water extract of each fresh yam on Bio-gel P-100 and then Sephadex G-150 columns completely separated the mucilage from protein. Furthermore, gel filtration of a water extract from each yam processed by steaming and drying on the Bio-gel P-100 column gave only one polysaccharide peak without protein. These results revealed that the mucilages of yams were only composed of polysaccharide. Then we assessed some properties of the mucilages under three kinds of criteria: a complex-forming capacity between mucilage and alcian blue, mannose content in the mucilage, and viscosity. The complex-forming capacities of two types of fresh yams were closely similar with each other, but the processing of two types of the fresh yams greatly lowered the complex-forming capacity and viscosity.

• 한국자원식물학회지
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• 제19권6호
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• pp.660-664
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• 2006

The aerial part of Siegesbeckia pubescens (Compositae) has been used to treat rheumatoid arthritis and hypertension in the Oriental medicine. This crude drug has been used without process (SP-0) or with three times-process of steaming and drying (SP-3) or the nine times of that process (SP-9). To search for the antinociceptive anti-inflammatory components from this crude drug, activity-directed fractionation was performed on this crude drug. Since the $CHCl_3$ extract was shown to have a more potent effect than other extracts, it was subjected to silica gel & ODS column chromatography to yield two diterpene compounds (1). Compound 1 was structurally identified as ent-16 (H, 17-hydroxykauran-19-oic acid, which were tentatively named siegeskaurolic acid A. A main diterpene, siegeskaurolic acid A was tested for the antiiflammatory antinociceptive effects using both hot plate- and writhing anti-nociceptive assays and carrageenan-induced anti-inflammatory assays in mice and rats. Pretreatment with siegeskaurolic acid A (20 and 30mg/kg) significantly reduced the stretching episodes, action time of mice and carrageenan-induced edema. These results support that siegeskaurolic acid is a main diterpene responsible for antinociceptive and antiiflammatory action of S. pubescens. In addition, the assays on SP-0, SP-3 and SP-9 produced the experimental results that SP-9 had more significant effects than other two crude drugs. These results suggest that the processing on the original plant may lead to the higher pharmacological effect.

• 한국잠사곤충학회지
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• 제55권2호
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• pp.40-43
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• 2019

Mature silkworms (MS) of Bombyx mori have enlarged silk glands, which are known to be enriched with various functional materials. A special steaming method has been developed for processing MS with enlarged silk glands edible, by which the MS have become a potential health supplement for improving the quality of life. Steamed and lyophilized MS powder (SMSP) has been strongly believed to have various unidentified beneficial effects for humans. Therefore, the purpose of this mini-review is to summarize the various health promoting functionalities of SMSP, which have been published in the paper so far. Firstly, SMSP increased healthspan as well as lifespan, locomotor ability, and resistance to Parkinson's disease by enhancing olfaction and mitochondrial activity in neurons. Secondly, SMSP increased resistance to carcinogens causing liver cancers, improved both acute and chronic liver function with alcohol metabolism, and prevented alcohol induced stomach ulcers. Thirdly, SMSP reduced UVB-induced skin pigmentations and melanogenesis. Taken together, SMSP can be regarded as a promising natural health product to increase incomes for sericultural farm households in Korea as well as global human health and welfare.

• Journal of Biosystems Engineering
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• 제35권3호
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• pp.163-168
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• 2010

With income growth and "well-being" trends, sales of corn has been increased recently. Corns are processed at processing facilities on the main production site. Corn processing steps include removing bract, steaming, vacuum packing, and storing. To replace manual corn bract removing, some bract removing machines were imported and used. However, the machines were abandoned shortly, because of high damaging ratio of corns. In this research, factors of successful bract removing was studied with rotating rollers and air-injection nozzles to develop corn bract removing system. The test device was composed of a cylindrical roller, an air spray nozzle, a regulator, and a motor. Designing factors were roller type, diameter of air spraying nozzle, spraying angle, and spraying pressure. The measured factors were bract removing rate and damaging rate. It was found that optimum cylindrical roller surface shape was cylindrical roller and linear grove roller. This roller shape produced lowest damaging rate. Test results of the efficacy of preprocessing showed that the air spraying after preprocessing produced highest performance. The rotational speed and inclination of the roller didn't affect the bract removing performance. Optimum injection angle of the air jet nozzle was $70^{\circ}$. To increase bract removing rate and to reduce corn damage, required injection pressure and injection nozzle diameter were decided to less than 0.4 MPa and 2.5 mm, respectively. More than 3 times of nozzle passing produced good bract removing performance and there were no significant difference between the number of passing times.