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Functional Properties of Newly-Bred ‘Summer King’ Apples
Eun-Ho Lee,Eun-Bi Cho,Byung-Oh Kim,Hee-Young Jung,Seung-Yeol Lee,Jingi Yoo,In-Kyu Kang,Young-Je Cho 한국원예학회 2020 원예과학기술지 Vol.38 No.3
In this study, we investigated the various physiological properties of ‘Summer King’ apples (Malus domestica Borkh) to highlight this fruit as a high value functional food source. The peels of newlybred ‘Summer King’ apple were extracted using water and ethanol, and each extract demonstrated relatively high levels of phenolic compounds at 4.41 ㎎·g<SUP>-1</SUP> and 7.39 ㎎·g<SUP>-1</SUP>, respectively. The water and ethanol extracts also showed antioxidant protection factor (PF) levels of 3.37 PF and 2.65 PF, respectively, and the antioxidation effects towards thiobarbituric acid reactive substances were 38% and 30% at 100 ㎍·mL<SUP>-1</SUP> phenolic concentrations. Therefore, extracts of ‘Summer King’ apple possess substantial properties for anti-aging. The anti-inflammatory effect (hyaluronidase inhibition) of the extracts were 4.97% for the water extract and 20.40% for the ethanol extract, both at a 200 ㎍·mL<SUP>-1</SUP> phenolic concentration. Both the water and ethanol extracts showed low α-amylase inhibition effects, but each demonstrated 93.59% and 98.80% α-glucosidase inhibition at a 200 ㎍·mL<SUP>-1</SUP> phenolic concentration, respectively. In an anti-wrinkle assay, the water extract showed 14.55% and 67.73% inhibition of elastase and collagenase, respectively, and the ethanol extract had 56.50% and 77.81% inhibition, respectively. These results support the high potential for the use of these extracts in functional food and cosmetics, and the ‘Summer King’ apple peel was determined to have various functions including anti-oxidation, anti-inflammation, anti-wrinkle, and anti-diabetic effects.
대심도 습식산화반응기의 특성평가를 위한 시뮬레이션 모델에 관한 연구
조은비(Eun-bi Cho),정문(Moon Jeong),황인주(In-Ju Hwang) 융복합지식학회 2017 융복합지식학회논문지 Vol.5 No.2
다양한 산업활동에서 발생하는 유기 폐수나 폐기물의 처리에 있어서 습식산화반응을 이용하는 경우가 많다. 습식산화반응은 고압과 고온을 필요로 하는데, 이러한 반응에 필요한 압력을 관 내부의 수두압을 이용하는 대심도 습식 산화반응기에 관한 연구가 다시 주목을 받고 있다. 본 연구에서는 대심도 습식산화 반응특성을 평가할 수 있는 시뮬레이션 모델을 수립하였으며, 이의 활용 가능성을 선행연구와 비교를 통하여 검증하고 영향인자를 평가하였다. 시뮬레이션 모델은 선행연구의 반응기 내 밀도와 압력 프로파일 결과와 비교시, 햐향 흐름에서 경향은 대체로 유사한 결과를 보였다. 그러나 하단부와 상향흐름에서 밀도변화에 의한 압력분포는 상이한 결과를 보였고, 이는 공기 주입과 습식산화반응에 따른 유동특성 변화에 기인하는 것으로 분석되며, 압력예측모델의 개선 필요성을 확인하였다. Wet oxidation reactions are mostly used to treat organic wastewater or wastes from various industrial activities. Generally, wet oxidation reaction requires high temperature and pressure. Recently, the research on the deep-well reactor using natural hydraulic pressure for wet oxidation is being re-watched with interest. In this study, a simulation model was established to evaluate the characteristics of the deep-well reactor for wet oxidation, and its applicability was verified through comparison with previous studies and the influence factors were evaluated. The simulation model showed similar trends with the previous studies which pressure increased in the downstream of reactor. However the bottom and upstream pressure showed different results due to change of flow characteristics by air supply and wet oxidation. So hereafter it is necessary to improve the pressure prediction model in upstream.
그린볼 사과(Green ball apple; Malus pumila Mill.) 적과의 항산화 및 elastase, collagenase, hyaluronidase 저해 효과
고유진 ( Yu-jin Go ),김예은 ( Ye-eun Kim ),김현남 ( Hyun-nam Kim ),이은호 ( Eun-ho Lee ),조은비 ( Eun-bi Cho ),권순일 ( Akhmadjon Sultanov ),조영제 ( Soon-il Kwon ),( Young-je Cho ) 한국응용생명화학회(구 한국농화학회) 2020 Journal of Applied Biological Chemistry (J. Appl. Vol.63 No.1
그린볼 사과 적과의 phenolic compound를 50-200 μg/mL 농도로 처리하여 DPPH radical 소거능을 측정한 결과 200 μg/mL 농도의 물과 ethanol 추출물은 94.69과 92.24%의 DPPH radical 소거능을 나타내었다. ABTS radical 소거능은 200 μg/mL 농도의 물과 ethanol 추출물에서 각각 100.30과 99.16%의 ABTS radical 소거능을 나타내었다. PF는 200 μg/mL 농도의 물과 ethanol 추출물에서 각각 1.76, 1.76 PF를 나타내었다. TBARs는 phenolic compound 농도가 200 μg/mL에서 물과 ethanol 추출물 각각 101.46, 99.64%의 항산화능을 나타내었다. 염증에 관련이 있는 HAase의 저해 효과를 측정한 결과 150 μg/mL 농도의 물과 ethanol 추출물은 각각 33.28, 32.14%의 저해효과를 나타내었다. 미용식품활성을 나타내는 elastase 저해활성을 측정해 본 결과 phenolic compound 농도가 200 μg/mL에서 물과 ethanol 추출물 각각 47.33, 40.92%의 저해 효과를 나타내었다. 피부의 주름과 탄력에 관련이 있는 collagenase 저해 효과를 측정한 결과 200 μg/mL 농도의 물과 ethanol 추출물은 각각 46.19, 65.58%를 나타내었다. 따라서 그린볼 사과 적과는 항산화, 항염증, 주름 개선 등 다양한 생리활성을 나타내는 기능성 소재로 개발이 가능할 것으로 판단되었다. In this study, the anti-oxidative, health functional, and beauty food activities of water and ethanol extracts from newly bred Ruby S apple (Malus pumila Mill.). The results of measuring the 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity by treating the phenolic compound with thinning green ball apple at a concentration of 50-200 μg/mL showed that the water and ethanol extracts at a concentration of 200 μg/mL showed 94.69 and 92.24%, respectively. 2,2'-Azinobis-(3-ethylbenzothiazoline- 6-sulfonic acid) radical scavenging activities showed 100.30 and 99.16%, respectively, in 200 μg/mL of water and ethanol extracts. The water and ethanol extracts of Green ball showed antioxidant protection factor of 1.76 PF 1.76, respectively. The water and ethanol extracts showed 101.46 and 99.64% anti-oxidative effect on thiobarbituric acid reactive substances at phenolic concentration of 200 μg/mL. The water and ethanol extracts showed 33.28 and 32.14% hyaluronidase inhibition, respectively, at phenolic concentration of 150 μg/mL. The water and ethanol extracts showed 47.33 and 40.92% elastase inhibition and 46.19 and 65.58% collagenase inhibition at phenolic concentration of 200 μg/mL, respectively. About these experiments, thinning Green ball apple was found to exhibit anti-oxidation activity as well as hyaluronidase, elastase and collagenase inhibitory activities. Therefore, thinning Green ball apple can be considered a potential sources for new functional materials.
Eun Bi Han,Se In Park,Won Jin Lee,Do Hyeong Kim,Su Hui An,Hyojin Lee,Soon Hyun Cho,Sung Kwon Ko,Byung Wook Yang 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Lavender (Lavandula angustifolia Mill.) is a perennial, medicinal and aromatic plant that is native to the Mediterranean region and has been widely cultivated in the world. This study was conducted in order to establish the extraction conditions with the Lavender for development of a functional cosmetic ingredients, which is controlling the skin aging. The dried powder prepared by the extract were optimized using the response surface methodology (RSM). The extraction conditions were based on the central composite design, with 15 kinds of variations in the extraction temperature (50-90℃), extraction time (6-24 hrs), and ethanol concentration (0-100%). The rosmarinic acid contents were significantly higher at 90℃ for 12 hrs with a 70% ethanol concentration. In this condition, the biological activities such as tyrosinase inhibitory activities and elastase inhibitory activities were excellent. The optimum extraction yield was predicted at an extraction temperature of 89.02℃, 11.79 hrs of extraction time and determined the value of 26.233% (wt/wt) with a 65.72% ethanol concentration, respectively.
Effects of Water Deficit and UV-B Radiation on Accumulation of Functional Metabolites in Crops
Jung-Eun Lim,Seul-Bi Lee,Ye-Jin Lee,Min-Ji Cho,Hye-Jin Yun,Deog-Bae Lee,Suk-Young Hong,Jwa-Kyung Sung 한국토양비료학회 2016 한국토양비료학회지 Vol.49 No.5
With increasing social concerns for healthy food, the studies on the cultivation of crops to increase accumulation of functional metabolites in crops have been investigated. Accumulation of the metabolites in crops is highly affected by various types of stress, such as nutrient deficiency, water deficit (WD), extreme temperature and UV-B radiation as well as their own life cycle. This review summarizes the previous studies on the effects of environmental stresses, especially WD and UV-B radiation, on accumulation of functional metabolites in crops. UV-B radiation and WD during specific period (mainly at maturation stage) activates the adaptation and/or defense system in crops, thereby increasing biosynthesis of the metabolites. Although WD and UV-B radiation tend to decrease in crop yield, the decrease can be compensated by the production of high value crops having high content of functional metabolites.
Production optimization of flying fish roe analogs using calcium alginate hydrogel beads
( Bom-bi Ha ),( Eun-hee Jo ),( Suengmok Cho ),( Seon-bong Kim ) 한국수산과학회(구 한국수산학회) 2016 Fisheries and Aquatic Sciences Vol.19 No.3
Due to decreased supplies of marine resources and byproducts, new processing technologies for the development of analogs for natural fishery products are becoming increasingly important in the fishing industry. In the present study, we investigated the optimal processing conditions for flying fish roe analogs based on alginate hydrogels. Optimized processing of these analogs was performed by response surface methodology. The optimal processing conditions for the flying fish roe analogs (based on sphericity) were at a sodium alginate concentration of 2.41 %, calcium chloride solution curing time of 40.65 min, calcium chloride concentration of 1.51 %, and a reactor stir speed of 254×g. When the experiment was performed under these optimized conditions, the size (mm), sphericity (%), and rupture strength (kPa) of the analogs were 2.2 ± 0.12, 98.2 ± 0.2, and 762 ± 24.68, respectively, indicating physical properties similar to their natural counterparts.
Son, Eun-Bi,Poo, Kyung-Min,Mohamed, Hend Omar,Choi, Yun-Jeong,Cho, Wan-Cheol,Chae, Kyu-Jung Elsevier 2018 Bioresource Technology Vol.259 No.-
<P><B>Abstract</B></P> <P>Chitosan modified magnetic kelp biochar (Chi-KB<SUB>m</SUB>) was successfully synthesized for efficient removal of heavy metals (Cu<SUP>2+</SUP>) from wastewater. Interestingly, the characterization results indicated that Chi-KB<SUB>m</SUB> showed 6 times higher surface area (6.17 m<SUP>2</SUP>/g) than the pristine magnetic kelp biochar KB<SUB>m</SUB> (0.97 m<SUP>2</SUP>/g). In addition, new functional groups, such as NH and CN group, have been created on the surface of biochar as a result of chitosan modification process, which in turns led to improve the Cu<SUP>2+</SUP> adsorption capacity. The effect of pH and chitosan loading on heavy metal adsorption, and competition reaction of different metal ions adsorption were also investigated. Chi-KB<SUB>m</SUB> exhibited a separation efficiency of more than 99.8%, which allows to recovery and reusability of the adsorbent material and heavy metals simultaneously. Overall, this study highlighted the Chi-KB<SUB>m</SUB> is a promise adsorbent for heavy metal removal without sacrificing of the separation ability using magnetism.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Chi-KB<SUB>m</SUB> was synthesized using simple, effective and cost less procedures. </LI> <LI> Chi-KB<SUB>m</SUB> achieved excellent Cu<SUP>2+</SUP> removal from aqueous solution compared to KB<SUB>m</SUB>. </LI> <LI> Nitrogen groups played a critical role to enhance Cu<SUP>2+</SUP> removal efficiency. </LI> <LI> Chi-KB<SUB>m</SUB> exhibited more than 99.8% separation efficiency with external magnet. </LI> <LI> Chi-KB<SUB>m</SUB> is an effective heavy metals adsorbent with easy magnetic separation. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>