• Korean Journal of Food Science and Technology
• /
• v.30 no.1
• /
• pp.69-76
• /
• 1998

This study was investigated to determine the effect of additives and ionic strength on the functionality of extracted proteins in preblends in order to use less additive in restructured meat products. Preblends contained the combinations of sodium chloride (NaCl; 0, 4.5, 9.0%), sodium tripolyphosphate (STPP; 0, 2.5, 5.0%), and tetrasodium pyrophosphate (PP; 0, 2.44, 4.88%). The pH values increased linearly with increasing STPP and PP concentrations (p<0.01). In the equivalent ionic strengths, PP was more effective than STPP in increasing pH. Phosphate ions were more effective on total extractable protein (used 1 M NaCl buffer) than chloride ion at equivalent ionic strengths. Solubility was decreased by adding NaCl and increasing total extractable proteins. Meat sulfhydryl contents were high with increasing total extractable proteins. When protein extracts were heated at $65^{\circ}C$, 7 min, meat sulfhydryl contents decreased and surface hydrophobicity increased (p<0.01). However, all protein extracts showed no differences in SDS-PAGE pattern. In conclusion, PP is more effective than STPP in order to use less additive but there was no linear relationship between functionnal improvement and ionic strength.

• Elastomers and Composites
• /
• v.48 no.2
• /
• pp.114-124
• /
• 2013

To study the effects of structural difference and fatty acid chain length of glyceride, new dispersion agents having various glyceride structures such as mono-, di-, and tri-, were prepared using glycerol extracted from palm oil and fatty acid having various chain length ranges from 12 to 18. These dispersion agents were mixed with the rubber compounds and compared with conventional metal salt dispersion agents. Glyceride dispersion agent provided remarkable improvement in silica dispersion, compared to metal salt fatty acidic one, even though the viscosity of mixtures was relatively high due to low lubricating effect, and this was approved by mechanical properties, wear properties, and Payne effect. Also, the longer in chain length of fatty acid and the smaller in numbers of fatty acid, the dispersity of silica was improved.

• The Korean Journal of Food And Nutrition
• /
• v.18 no.4
• /
• pp.334-340
• /
• 2005

This study has attempted to examine the effect of Artemisia princeps and A. argyi on liver function-related enzymes in rats with $CCl_4$ adminisration. The activities of serum aspartate aminotransferase(AST), alanine aminotransferase(ALT) and alkaline phosphatase(ALP) from A. princeps were decreased by 33, 23 and $19\%$, respectively, compared to control. The activities of AST, ALT and ALP from A. argyi were decreased by 37, 33 and $26\%$, respectively. Total phenol contents were 10.2 mg/mL and 4.7 mg/mL in A. princeps, and A. argyi, respectively. Also, flavonoid contents were $6.1\;mg\%\;and\;3.6\;mg\%$ in A. princeps, and A. ar효i, respectively. Ethanol extract from A. argyi showed higher electron donating ability toward DPPH than A. princeps. A total of 31 volatile components(3 hydrocarbons, 10 terpenes, 5 carbonyls, 8 alcohols and 5 esters) were indentified in A. princeps, and A. argyi. The major volatile components of A. princeps were $\delta$-3-carene($2.2\%$) in terpenes and nerolidol($0.9\%$) in alcohols. The major volatile components of A. argyi were eugenol($1.4\%$) in alcohols and thyl pentadecanoate($1.1\%$) in esters.

• Korean Journal of Soil Science and Fertilizer
• /
• v.30 no.4
• /
• pp.341-344
• /
• 1997

To check the possibility to use the pharmaceutical by product of ginkgo leaf for the improvement soil fertility, a pot experiment was conducted with paddy rice. There were three treatment; NPK alone, NPK+7000kg(air dry)/ha of ginkgo leaf waste and NPK+700 kg of water-washed ginkgo leaf waste (air dry)/ha. The result indicated that the application of ginkgo leaf waste severely retarded the growth of rice. Water washing did reduce the severity of retardation, but the water washed ginkgo leaf waste also retarded the growth of rice significantly. The result of this study suggested that ginkgo leaf waste may contain some growth inhibiting substance.

• Explosives and Blasting
• /
• v.33 no.2
• /
• pp.1-14
• /
• 2015

This study was performed to investigate the manufacturing process of the Yeomcho(potassium nitrate), a necessary raw material for making gunpowder using soils and ashes by our ancestor. 10 types of soils including underfloor soil and 6 kinds of ashes including mugwort ash were collected, referencing the historical record. The ionic components extracted from the soils and ashes were analyzed by ICP(inductively coupled plasma atomic emission spectrometer) and IC(ion chromatograph). Nitrate ions and potassium ions were dominantly contained in soils and ashes, respectively. In particular, nitrate ions were found in the highest lebels in underfloor soil which often has much exposure to human living environments and accumulated fine organic matter. Potassium ions contained in ash was affected significantly by the type of plant and the growth environments and the measured levels were the highest in mugwort ashes. Yeomcho of 68% purity was obtained from the soil and ash mixture of 1:1 and thid purity was improved by about 14% by fractional crystallization method.

• Herbal Formula Science
• /
• v.18 no.2
• /
• pp.167-182
• /
• 2010

Cervi parvum cornu (Deer Antler) and Carthami tinctorii fructus (Also known as Carthami seed) are widely used for treating osteoporosis and rheumatoid arthritis. In this study, We found out that the water extract of Cervi parvum cornu(WECPC), Carthami tinctorii fructus(WECTF) and their combination have effects of suppressing the RANKL-induced osteoclast differentiation. We assayed mRNA expression levels of NFATc1, c-Fos, TRAP and GAPDHS from bone marrow macrophages(BMMs) by means of RT-PCR. Similarly, the protein expression levels of NFATc1, c-Fos, MAPKs and $\beta$-actin in cell lysates were analyzed by means of Western blotting. then we determined the anti-osteoporotic effects of WECPC, WECTF and their combination using Lipopolysaccharide (LPS)-induced bone-loss mouse. WECPC, WECTF and their combination showed remarkable inhibition on RANKL-treated osteoclast differentiation without cytotoxicity. WECPC suppressed degradation of I-${\kappa}B$. WECPC, WECTF and their combination down-regulated the induction of c-Fos and NFATc1 by RANKL. Lastly, in vivo data showed that WECPC, WECTF and their combination rescued the bone erosion by LPS treatment. Thus, these results demonstrate that WECPC, WECTF and their combination can be efficacious remedies for bone-loss diseases such as osteoporosis and rheumatoid arthritis.

• Analytical Science and Technology
• /
• v.13 no.1
• /
• pp.81-88
• /
• 2000

A rapid preconcentration method was developed for the speciation of the trace mercury compounds in water sample. The mercury compounds were extracted and preconcentrated simply as their dithizone complexes by passing through the dithizone impregnated ultra-high molecular weight polyethylene (UHMWPE) membrane solvent inlet filter following sanification in methanol solvent. The concentrated dithizonates were separated by liquid chromatography on a $C_{18}$ column. Complete resolution was obtained between methyl-, ethyl-, phenyl-, and inorganic mercury with a mobile phase of 0.05 M acetate buffer (pH=4)/THF/methanol(3:5:2). The separnted mercury chelates were detected by spectrophotometrically at 475 nm. The proposed method was successfully applied to the speciation of mercury compounds in waste water with detection limit at the subnanogram/mL level.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2012.05a
• /
• pp.760-760
• /
• 2012

도심 지역은 인구집중, 토지 피복의 변화 및 교통량 증가 등의 인공열 배출원의 다양화 등의 요인에 의해 주변지역보다도 기온이 높은 도시 열섬(Urban Heat Island) 현상에 의해 독특한 도시기후의 특색을 보이게 된다. 일반적으로 도시 열 환경에 대한 연구는 도시 열섬의 강도나 현상을 파악하는데 집중되어 왔다. 최근 들어 도시 열섬 현상 완화 또는 개선을 위한 관심이 높아지면서 도시내에 존재하는 수면이나 녹지를 이용한 기후개선에 대한 연구가 진행되고 있다. 하천은 다양한 생물이 서식하는 공간이면서 생물의 다양성이 풍부한 생태계의 보고로 인간과 환경이 조화를 이루어 온 공간이기도 하다. 이와 같이 하천은 지역의 다양성과 특수성에 따라 가지고 있는 기능이 다양하다. 그 중 하천의 환경 기능은 많은 열용량을 축적시켜 수면의 온도상승을 적게 하여 하천의 온도는 물론 주변지역의 온도를 낮추는 역할을 하게 된다. 특히 흐르는 물은 대류와 혼합과정을 거치며 열을 운반할 수 있으므로 효율적인 축열체가 된다. 또한 하천의 물 등은 광의 투과성이 높기 때문에 표면에서는 반사되지 않고 수체 내에 열을 저장한다. 따라서 이러한 현상이 종합적으로 작용하여 도심하천은 도심지에서 높게 형성된 온도를 낮추는 냉각효과가 있다고 판단된다. 이러한 영향을 알아보기 위해 본 연구에서는 원격탐사 기법을 이용하여 도심하천이 도시 열완경 완화에 미치는 영향을 분석하였다. 분석을 위해 2009년 9월 6일 Landsat 7 ETM+ 위성영상을 이용하여 LST (Land Surface Temperature)를 추출하고, SEBAL (Surface Energy Balance Algori- thms for Land) 모델을 이용하여 지표면 열수지 성분을 추출하였다. 그 결과, 도심하천 주변의 온도가 도심지에 비해 $2{\sim}3^{\circ}C$ 정도 낮게 형성되었으며, 잠열은 주변 도심지에 비해 하천에서 높은 분포를 나타내었다. 그러나 하천 둔치나 하천 주변의 콘크리트, 아스팔트 및 나대지 등의 토지피복은 지표면 온도가 높게 형성되어 도심의 heat spot으로 작용하여 열 환경을 악화시키나 도심하천은 cool spot 작용을 하여 도심의 열을 완화하는 기능을 갖는 것으로 판단된다.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2023.04a
• /
• pp.60-60
• /
• 2023

특허제도는 발명자에게 발명의 공개에 대한 대가로 일정기간 독점권을 인정하여 기술개발에 투자한 자금을 회수할 수 있는 기회를 제공하고 공개된 발명은 새로운 기술개발을 위하여 누구나 이용할 수 있도록 하여 기술발전을 촉진할 뿐만아니라 이미 개발된 발명에 대한 중복투자, 연구를 하는 낭비를 방지하기 위한 목적을 가진다. 본 조사는 2022년 12월 31일까지의 정부 특허정보넷인 키프리스(www.kipris.or.kr)에서 꽃차 관련 실용신안 특허 내용을 검색하여 정리하였으며 그 결과는 다음과 같았다. 1. 1983년 엘다베리꽃차 제조방법에 대한 것을 시작으로 최근 2022년 12월 31일까지 총 30개가 출원되어 2022년에는 증가된 것이 없었다. 2. 출원된 실용신안 특허 총 30개 중에서 소멸 2개(엘다베리/1983, 연꽃/2009), 취하 3개(무궁화/1992, 백화차/2005, 꽃차/2014), 거절 6개(매화/2001, 장미녹차/2007, 혼합꽃녹차/2007, 동결꽃차/2008, 소금꽃차/2015, 꽃차누룽지/2017), 공개 6개(꽃차/2014, 소금꽃차/2015, 꽃차추출물/2017, 기능성꽃차 /2018, 꽃차추출물/2018, 금잔화꽃차/2019), 포기 2개(개복숭아 꽃차/2015, 동백꽃차/2017), 등록(녹차꽃차/2006, 사과꽃차/2008, 목련꽃차/2012. 목련꽃차/2014, 칡꽃차/2015, 장미꽃차/2017, 모란꽃차/2017, 꽃차제조방법/2018, 꽃차로스팅장치/2018, 꽃음료/2020, 향 강화 꽃차/2021)은 11개였다. 3. 출원된 실용신안 특허 총 29개 중에서 개인이 출원한 것이 19개, 회사(아모레퍼시픽, 휴먼코스메틱, 화이통협동조합, (주)꽃다비, 주식회사 플러드, (주)우리꽃연구소)나 기관(한국식품연구원, 고창군), 대학(전남대, 동의대 2개)이 출원한 것이 11개였다.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2021.04a
• /
• pp.61-61
• /
• 2021

특허제도는 발명자에게 발명의 공개에 대한 대가로 일정기간 독점권을 인정하여 기술개발에 투자한 자금을 회수할 수 있는 기회를 제공하고 공개된 발명은 새로운 기술개발을 위하여 누구나 이용할 수 있도록 하여 기술발전을 촉진할 뿐만아니라 이미 개발된 발명에 대한 중복투자, 연구를 하는 낭비를 방지하기 위한 목적을 가진다. 본 조사는 2020년 12월 31일까지의 정부 특허정보넷인 키프리스(www.kipris.or.kr)에서 꽃차 관련 실용신안 특허 내용을 검색하여 정리하였으며 그 결과는 다음과 같았다. 1. 1983년 엘다베리꽃차 제조방법에 대한 것을 시작으로 최근 2020년 12월 31일까지 총 29개가 출원되었다. 2. 출원된 실용신안 특허 총 29개 중에서 소멸 2개(엘다베리/1983, 연꽃/2009), 취하 3개(무궁화/1992, 백화차/2005, 꽃차/2014), 거절 6개(매화/2001, 장미녹차/2007, 혼합꽃녹차/2007, 동결꽃차/2008, 소금꽃차/2015, 꽃차누룽지/2017), 공개 6개(꽃차/2014, 소금꽃차/2015, 꽃차추출물/2017, 기능성꽃차/2018, 꽃차추출물/2018, 금잔화꽃차/2019), 포기 2개(개복숭아 꽃차/2015, 동백꽃차/2017), 등록(녹차꽃차/2006, 사과꽃차/2008, 목련꽃차/2012. 목련꽃차/2014, 칡꽃차/2015, 장미꽃차/2017, 모란꽃차/2017, 꽃차제조방법/2018, 꽃차로스팅장치/2018, 꽃음료/2020)은 10개였다. 3. 출원된 실용신안 특허 총 29개 중에서 개인이 출원한 것이 19개, 회사(아모레퍼시픽, 휴먼코스메틱, 화이통협동조합, (주)꽃다비, 주식회사 플러드)나 기관(한국식품연구원, 고창군), 대학(전남대학교, 동의대학교 2개)이 출원한 것이 10개였다.