• 치위생과학회지
• /
• 제12권5호
• /
• pp.511-515
• /
• 2012

이 연구는 2012년 3월부터 6월까지 3개월간 평균 연령 20.6세의 남자 14명(38.8%), 여자 22명(61.1%)을 대상으로 청정식품의 치면세균막 제거효과를 비교한 비동등성 통제군 사전-사후 측정 설계연구이다. 청정식품 저작 전 구강환경관리능력지수(PHP index)를 사전측정하고, 오이, 배, 당근, 복숭아를 30회씩 저작한 뒤 사후 측정하여 비교하였다. 자료 분석은 SPSS 18.0 (IBM Co., Armonk, NY, USA)을 이용하여, 청정식품간 PHP index를 ANOVA로 비교하였고, 저작 전과 후의 청정식품별 PHP index 차이를 paired t-test로 파악한 결과는 다음과 같았다. 1. 모든 청정식품에서 저작 전에 비해 저작 후의 PHP index가 유의하게 감소하였다. 2. 청정식품간의 PHP index는 유의한 차이를 보이지 않았다. 결론적으로 청정식품은 치면세균막 제거에 어느 정도 효과가 있는 것으로 나타났다. 하지만 청정식품 종류에 따른 치면세균막 제거효과의 차이는 밝혀내지 못하였다. 향후 관련된 여러 요인을 보다 정교하게 통제하고, 다양한 청정식품을 활용한 임상시험연구로 실증적인 치면세균막 제거효과를 연구할 필요가 있을 것이다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제31권5호
• /
• pp.721-728
• /
• 2018

Objective: This experiment was conducted to determine the differences in the apparent ileal (AID) and total tract digestibility (ATTD) of nutrients and indispensable amino acids (IAA) in high-fiber diets with wheat middlings, rice bran or alfalfa meal fed to Duroc${\times}$(Landrace${\times}$Yorkshire) (DLY) and Duroc${\times}$ (Berkshire${\times}$Jiaxing) (DBJ) growing barrows. Methods: Eighteen DLY and 18 DBJ growing barrows were randomly allotted to a $2{\times}3$ factorial arrangement involving 2 crossbreeds and 3 high-fiber diets. The experiment lasted 15 d with 10 d for diets adaptation, 3 d for feces collection and 2 d for digesta collection. Three diets were based on corn and soybean meal with 25% wheat middlings, rice bran and alfalfa meal respectively. Results: DBJ had a greater (p<0.05) AID of isoleucine, leucine, lysine, phenylalanine and valine and a lower (p<0.05) AID of methionine than DLY. The hindgut disappearance of acid detergent fiber for DBJ was greater (p<0.05) than DLY. The ATTD of gross energy, dry matter, organic matter, neutral detergent fiber and acid detergent fiber in wheat middlings diet were greater (p<0.05) than in rice bran and alfalfa meal diets. The hindgut disappearance of neutral detergent fiber and acid detergent fiber in wheat middlings diet or rice bran diet were the highest or lowest (p<0.05), and those of alfalfa meal diet were the middle. Barrows fed rice bran diet had a greater (p<0.05) hindgut disappearance of gross energy, dry matter and organic matter and lower hindgut disappearance of neutral detergent fiber and acid detergent fiber than barrows fed alfalfa meal diet Conclusion: DBJ growing barrows showed a significant higher digestibility of fiber in the hindgut and most IAA in the small intestine compared with DLY barrows. The digestibilities of chemical constituents and IAA were affected by the diets formulated with different fiber sources.

• 한국식품과학회지
• /
• 제53권6호
• /
• pp.792-798
• /
• 2021

과일 및 채소의 세척방법에 대한 실태와 세척제를 야채과일의 세척에 사용하는 경우 계면활성제 6종(LAS, SLES, AOS, SLS, CAPB, LDAO)의 잔류 정도를 LC-MS/MS를 이용하여 조사하였다. 설문조사 결과, 과일 및 채소 세척 시 세척제를 사용하는 경우는 4-16%이며, 이중 세척제의 표시사용 농도를 인지하고 이를 실제로 사용하는 경우는 14%에 불과하였다. 표시 사용량인 0.2%로 세척제를 희석하여 야채와 과일을 담근 경우 평균 2.61%의 계면활성제 잔류율을 보였으며, 표시사용농도의 5배와 25배로 희석한 1와 5% 세척액의 경우 평균 4.68-5.50%의 계면활성제 잔류율을 보였다. 헹굼과정에서 방울토마토는 0.2% 세척액으로 세척 후 30초간 1회 헹굼을 하면 계면활성제가 잔류하지 않았으며 1%와 5% 세척액은 2회 반복 시 잔류하지 않았다. 상추의 경우 0.2%와 1% 세척액으로 세척 후 30초간 2회 헹굼을 하면 계면활성제가 잔류하지 않았으며 5% 세척액은 3회 반복 시 잔류하지 않았다. 따라서 1종 세척제를 사용하여 과채류를 세척할 경우 제품에 표기되어 있는 표시사용량을 준수하고, 깨끗한 물로 30초씩 3회 이상 헹구는 것이 계면활성제의 잔류량을 최소화할 수 있을 것으로 보였다.

• Journal of Microbiology
• /
• 제38권3호
• /
• pp.187-191
• /
• 2000

A validation study was conducted to determine the efficacy of solvent/Detergent (S/D) inactivation and Q-Sepharose column chromatographic removal of the human immunodeficiency virus (HIV) during the manufacturing of a high purity antihemopilic factor VIII (GreenMono) from human plasma. S/D treatment using the organic solvent, tri (n-butyl) phosphate, and the detergent, Trition X-100, was a robust and effective step in eliminating HIV-1. The HIV-1 titer was reduced from an initial titer of 8.3 log10 TCID50 to undetectable levels within one minute of S/D treatment, HIV-1 was effectively partitioned form factor VIII during Q-Sepharose column chromatography with the log reduction factor of 4.1 . These results strongly assure the safety of GreenMono From HIV.

• Journal of Animal Science and Technology
• /
• 제57권11호
• /
• pp.34.1-34.5
• /
• 2015

Himalayan dock (Rumex nepalensis) was evaluated for forage value and antinutrients under three, five and seven weeks cutting intervals in the temperate environment. Dry matter (DM) content was measured for each cutting interval. Forage quality parameters such as Crude Protein (CP), Acid Detergent fiber (ADF), Neutral Detergent Fiber (NDF), Calcium (Ca) and Phosphorus (P) were analyzed. Plants with seven weeks cutting interval gave higher DM yield. CP and P content were significantly higher for three weeks cutting intervals. Average CP contents were 31.38 %, 30.73 % and 27.32 % and average P content 0.58 %, 0.52 % and 0.51 % for three, five and seven weeks cutting intervals, respectively. Ca content did not differ significantly between cutting intervals. The average Ca content were 0.91 %, 0.90 % and 90 %, for three, five and seven weeks cutting intervals, respectively. Tannin and mimosine contents were not significantly different between cutting intervals. Average tannin contents were 1.32 %, 1.27 % and 1.26 % and mimosine 0.38 %, 0.30 % and 0.28 % for three, five and seven weeks cutting intervals, respectively. The study concluded that R. nepalensis could be a potential source of protein for livestock. The study also suggests seven weeks harvesting interval to provide plants with high dry matter yield, high forage quality and very low levels of anti-nutrients.

• 공업화학
• /
• 제9권7호
• /
• pp.985-989
• /
• 1998

본 연구는 가스크로마토그래피를 이용하여 사과와 고추에 대해 물, 주방용합성세제, 살균소독제 등의 다양한 세척제에 의한 농약의 세척 제거효율을 조사하였다. 농약의 회수율을 높이기 위해 대상 농약별로 상이한 전처리 조건으로 실험하였고 최적의 전처리 조건을 조사하였다. 분리관은 supelco STB-608을 사용했고 검출기로 전자포획검출기(ECD)를 사용했다. 농약제거효율은 알콜소독제>주방용합성세제>물 순서로 높았다.

• 한국응용과학기술학회지
• /
• 제21권2호
• /
• pp.140-147
• /
• 2004

An aqueous solution of a commercial liquid synthetic detergent for kitchen use was photodecomposed in the presence of titanium dioxides powder under an atmosphere of air at room temperature. Titanium dioxides were prepared by sol-gel method from titanium iso-propoxide at different R ratio($H_2O$/titanium iso-propoxide) and calcined at $500^{\circ}C$. All titanium dioxides were characterized by XRD, BET surface area analyzer and UV-VIS spectrometer. The surface area of titanium dioxides prepared at R ratio=6 appeared higher volume about 20% than commercial $TiO_2$ catalysts. XRD patterns of titania particles were observed mixing phase together with rutile and anatase type. Titanium dioxides prepared by sol-gel method show higher activity about 6% than commercial $TiO_2$ catalysts on the photocatalytic degradation of a commercial liquid synthetic detergent for kitchen. The concentration of the detergent decreased to about 90% of its initial value at illumination times of 2 hour. Illumination for 30 minutes decreased the concentration of oxygen to about one-fifth of the initial value.

• 대한의용생체공학회:의공학회지
• /
• 제34권2호
• /
• pp.69-72
• /
• 2013

The goal of this study is to develop test method for evaluating the drug eluting properties of drug eluting stents (DES). PBS and the detergent solutions, presented by each DES manufacturer, were used for drug release of DES coated with paclitaxel, zotarolimus and everolimus. The drugs which are coating DES were not released by PBS but released by the detergent solutions, finally paclitaxel 83.38%, zotarolimus 103.85% and everolimus 115.78%. It seems that the use of the detergents is necessary in order to release the drugs because those drugs are extremely hydrophobic. In conclusion, using of detergent solutions presented by each manufacturer were suitable for evaluating the drug eluting property of drug eluting stent.

• 한국의류학회지
• /
• 제28권2호
• /
• pp.189-199
• /
• 2004

This study analyed the results of the survey on the actual condition and the attitude in using laundry detergents of housewives in Jeonbuk region centering around Jeonju\ulcornerGunsan. The purpose of this study is to give more reasonable and scientific clothing management and to help to solve the problems of the environmental pollution caused by laundry detergents. Both Jeonju(71.4％) and Gunsan(71.0%) got informations about environmental pollution through mass media like TV and Radio. As for the degree of recognition of regenerated soap, comparing with the synthetic detergent, most people thought that the regenerated soap had better detergency, less water pollution, and less harm to the human being than the synthetic detergent. Accordingly, it showed they misconceived it. It showed that the aged consumers in Jeonju and Gunsan had all good attitudes for the practice. As roles of consumers toward the problems of environmental pollution, the respondents who thought that the consumers roles were important took high percentage(Jeonju 86.8% and Gunsan 84.5%). In conclusion, they showed high degree of concerns in the recognition of necessity about the proper use of detergent, however, low in their attitudes in real life applications.

• 한국식품영양학회지
• /
• 제8권2호
• /
• pp.116-127
• /
• 1995

Recently, interests of dietary fiber associated with critical physiological effects have been rising in Korea physiological effect in the body. In the present study, the contents of fiber components in 15 kinds of vegetables being consumed commonly in Korea were investigated, and the effects of various treatments (cooking and Kimchi fermentation) on fiber were studied. The results are summarized as follows. Fiber contents of vegetables were 11.8∼31.9% of neutral detergent fiber(NDF), total insoluble dietary fiber, 10.9∼25.4% of acid detergent fiber(ADF), 8.8∼23.8% of cellulose, 0.6∼10.6% of hemicellulose and 1.0∼5.2% of lignin, on dry weight basis. Especially, peppers had higher contents of NDF than the other vegetables. In the vegetables used in the present study, it was found that a great portion of NDF, total insoluble dietary fiber, was composed of cellulose because cellulose covered 63% of NDF. 'Cooking increased the NDF, ADF and cellulose contents, and most change was due to the change of cellulose. The values of hemicellulose and lignin showed an Irregular pattern upon cooking. Fermentation slightly increased NDF, ADF and cellulose, while hemicellulose and lignin showed irregular pattern.