• Applied Biological Chemistry
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• 제51권1호
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• pp.6-10
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• 2008

Hydrocolloid 로 arabic gum, carboxyl methyl cellulose, pectin을 각각 강력분에 0.2%와 0.5% 첨가하여 반죽의 레올로지 특성 변화를 farinograph, 반죽의 pH, extensograph, fermometer, amylograph 등으로 분석하였다. Hydrocolloid 첨가 시 farinograph에서 흡수율은 증가되었고 CMC 0.5% 첨가시 70.8%로 흡수율이 가장 높았다. 반죽발전시간은 길어졌으나 안정도는 낮아졌다. Hydrocolloid 첨가로 반죽의 pH는 저하되었고 pectin 0.5% 첨가시 가장 낮았다. Extensograph에서 반죽의 저항성은 감소하였고 신장성은 증가하였으며 R/E 값은 낮아졌다. 반죽의 가스발생량은 증가하여 CMC를 0.2% 첨가시 가장 많은 가스를 발생하였다. Amylograph에서 초기호화온도는 $0.5-1.5^{\circ}C$ 싱승하였으나 최고점도온도는 $1-1.5^{\circ}C$ 낮아졌고 최고점도는 높아졌다.

• 한국식생활문화학회지
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• 제25권6호
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• pp.770-778
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• 2010

Bamboo leaf powder was added to Jeolpyun to increase the neutraceutical effects and storage period. The bamboo leaf powder was added to rice flour at ratios of 0, 4, 6, 8, and 10% (w/w), and they were treated with aqueous malt extract to extend storage. The Jeolpyun was stored at $20^{\circ}C$ for 72 hr, and the physical and sensory characteristics were evaluated. As a result, the crude fat, crude protein, moisture, crude ash and total dietary fiber contents in bamboo leaf powder were 4.36, 11.29, 3.37, 7.33, and 65.57%, respectively. The Hunters L, a, and b values decreased significantly as the amount of bamboo leaf powder increased; however, the a and b values increased during storage. The paste property setback values decreased with the malt extract treatment and with increasing amounts of bamboo leaf powder. In a sensory analysis, hard texture strength in the malt extract and bamboo leaf powder treatment groups was less than that in the control during storage. The Jeolpyun prepared with malt extract and no bamboo leaf powder was the most accepted by consumers. Although adding bamboo leaf powder resulted in less consumer acceptance except for the flavor attribute, adding 4% and 8% bamboo leaf powder resulted in better consumer acceptance for texture, taste, and overall acceptance than that of the control. In a microbial analysis, adding bamboo leaf powder resulted in fewer mold colonies. In conclusion, adding 4% bamboo leaf powder and malt extract to Jeolpyun improved its storage properties.

• 한국광물학회:학술대회논문집
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• 한국광물학회 1997년도 창립 10주년 기념 산업광물 심포지엄
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• pp.74-88
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• 1997

• 대한치과기공학회지
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• 제39권2호
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• pp.111-118
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• 2017

Purpose: The study aims to evaluate satisfaction of toothpaste adding natural materials extracted from Zanthoxylum schinifolium and various herbs (Pine, Lemongrass, Spearmint). Methods: We performed the first survey to collect basic data for the development of natural herbal toothpaste. Participants were the general public in Jeonju and Iksan of Jeollabuk-do, and a total of 273 questionnaires were analyzed for the study. By adding anthoxylum schinifolium and herbal extracts (Pine, Lemongrass, Spearmint) to the toothpaste, four kinds of natural herbal toothpaste prototypes were manufactured. The second survey was conducted to assess the satisfaction one week after using the natural herbal toothpaste prototypes. Results: Satisfaction with current toothpaste was 3.52. The most important criterion of toothpaste was the prevention of tooth caries. 55.3% participants obtained toothpaste information through advertising. The survey indicated the most worrisome ingredient of toothpaste was surfactant, showing 55.3%. The overall satisfaction of natural herbal toothpaste was 3.99; among the four natural herbal toothpaste, toothpaste 2 (Zanthoxylum schinifolium, Lemongrass) showed the highest satisfaction as 3.99; and toothpaste 3 (Zanthoxylum schinifolium, Spearmint) showed the lowest satisfaction as 3.56. Conclusion: Four kinds of natural herbal toothpaste showed higher satisfaction as 3.99. In particular, the toothpaste adding Zanthoxylum schinifolium and Lemongrass extracts.

• 한국식품영양학회지
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• 제21권2호
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• pp.135-142
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• 2008

This study investigated to develop new functional yogurt added domestic yuza(Citrus junos). In order to make the most effective yogurt, yuza extract and fructose were mixed at different proportions. DPPH free radical scavenging activity of yuza yogurts increased dependent on concentration. The results of the DPPH free radical scavenging activity, the 1% yuza yogurt was proven to be the best. The overall sensory score for yogurt made from adding 1% yuza ethanol extract was the best of tested yogurts. The antioxidant activity(DPPH free radical scavenging activity) was the highest in 1% yuza yogurt. The quality characteristics of prepared yogurt were evaluated in terms of acid production(pH and titratable acidity), viscosity, color and levels of lactic acid bacteria during storage period. During storage, the quality of yogurt made from adding yuza extract was better than control(without yuza extract). The sedimentation of curd was repressed a little by adding 1% yuza extract.

• 한국분무공학회지
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• 제3권4호
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• pp.8-15
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• 1998

The spray characteristics of emulsified fuel of W/O type has been experimentally investigated. The mixture of light oil and water by using ultrasonic energy adding system is used as the emulsified fuel. The SMD of sprayed droplet of emulsified fuel is measured by using the particle size analyzer. Major parameters of the present experimental study are the volume fraction of water in emulsified fuel, $0\sim30%$ by 5%, injection pressure, $10kg_f/cm^2\sim18kg_f/cm^2$ by $2kg_f/cm^2$, and the measurement distance, $10\sim100mm$, between injection nozzle tip and analyzer beam. Compared with light oil, the SMD of emulsified fuel is larger gradually by increasing the volume fraction of water in emulsified fuel, heightening injection pressure and increasing the spray distance. Also, In considering the fact that the pattern of drop size distribution of emulsified fuel is alike that of light oil, the real time spray in coincidence with making emulsified fuel by adding ultrasonic energy can stabilize spray pattern without modificating the injection system used by now.

• 자원리싸이클링
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• 제7권4호
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• pp.50-54
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• 1998

원하는 전자기적 특성인 높은 초투자율과 우수한 주파수 의존특성을 얻기 위해 Mn-Zn 페라이트계에서 핵입자의 첨가효과를 실험하였다. 소결온도에서 가소된 핵입자를 첨가함에 따라 비정상 입자성장이 말끔히 사라졌지만, 페라이트의 소결밀도와 초투자율이 감소하였다. 이와 반대로 매트릭스 입자의 가소온도보다 낮은 온도에서 가소된 핵입자의 첨가시에는 비정상 입자성장이 잔유하였으나, 적정한 핵입자 첨가로 Cutoff Frequency가 변화하지 않는 가운데 10∼20%의 초투자율값의 상승이 있었다.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 1999년도 제29회 춘계학술대회
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• pp.14-19
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• 1999

In order to evaluate the effect of Nb on wear properties of high speed steel by powder metallurgy(PM-HSS), niobium-alloyed PM-HSS have been prepared by adding 0%, 1%, 3% and 5%Nb to PM-HSS of 6%W-5%Mo-4%Cr-5%V-5%Co presented in the previous paper. Sliding wear test have been conducted in various sliding speed conditions under the constant pressure using a pin-on-disc type machine. The results of this study shows that the wear resistance of PM-HSS has been increased by the addition of Nb in the range of experimental sliding speed. However, the amount of Nb shows to be unimportant parameter for the improvement of the wear resistance. It may be due to the thermal stability of carbide and high temperature properties of matrix by adding Nb comparing to the case of no addition.

• 대한약침학회지
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• 제8권2호
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• pp.17-22
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• 2005

Objective : This study was performed to evaluate the treatment of acupuncture therapy including. Bee Venom and Hominis Placenta herbal acupuncture on the patient with Transverse myelitis. Methods : We treated the patient with Transverse myelitis by Bee Venom herbal acupuncture at beginning, since then we treated him adding to Hominis Placenta herbal acupuncture. Conclusions: The patient was effectively reduced symptoms with Bee Venom herbal acupuncture, since then he get more effective improvement of symptoms by adding Hominis Placenta herbal acupuncture. Therefore we are able to expect Bee Venom and Hominis Placenta herbal acupuncture will be more effective than simply acupuncture on the patient with Transverse myelitis.

• 대한기계학회논문집
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• 제6권2호
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• pp.121-132
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• 1982

Engine torque, specific fuel consumption and MBT spark advance of a domestic automotive engine fueled with methanal-gasoline blends or straight methanal were studied under steady state condition and compared to those obtained with gasoline. The effects of adding methanal to gasoline on engine performance were studied with or without any carburetor modification. At first, the engine was operated without any modification. Next, the diameters of metering orifices in carburetor were modified to give the same excess air factor regardless of fuel type under each fixed engine operating condition. Finally, the diameters of metering orifices in carburetor were modified to give the same excess air factor for 15% mixture of methanal in gasoline by volume as for gasoline with standard metering orifices in carburetor. The effects of adding methanal to gasoline on engine torque, specific energy consumption and MBT spark advance can be explained on the basis of change in stoichiometry caused by the addition of methanal to gasoline.