A5100448002- Phytochemicals and Antioxidant Activities
- Food Quality and Safety Studies
- GABA and Rice Research
- Phytochemistry and Biological Activities
- Sesame and Sesamin Research
- Natural product bioactivities and synthesis
- Microbial Metabolism and Applications
- Coconut Research and Applications
- Peanut Plant Research Studies
- Food composition and properties
- Phytoestrogen effects and research
- Bee Products Chemical Analysis
- Pharmacological Effects of Natural Compounds
- Soybean genetics and cultivation
- Horticultural and Viticultural Research
- Agriculture, Soil, Plant Science
- Natural Products and Biological Research
- Tea Polyphenols and Effects
- Fermentation and Sensory Analysis
- Ginseng Biological Effects and Applications
- Protein Hydrolysis and Bioactive Peptides
- Fungal Biology and Applications
- Cholinesterase and Neurodegenerative Diseases
- Antioxidant Activity and Oxidative Stress
- Genomics, phytochemicals, and oxidative stress
Rural Development Administration
2018-2025
Institute of Crop Science
2021-2022
Semyung University
2021
Chungbuk National University
2015-2018
Jeju National University
2014-2017
Jeonbuk Agricultural Research & Extension Services
2011
Abstract BACKGROUND The ability of heat treatment with a soaking solvent to increase soluble phenolic compounds due the liberation or breakdown cell matrix has been investigated in various plants. This study changes and antioxidant activities 12 sweet potato cultivars after distilled water prethanol A. RESULTS highest total polyphenol content (134.67 mg gallic acid equivalents/g extract residue) flavonoid (65.43 catechin was observed ‘Jami’ (JM) cultivar Higher generally purple cultivars....
Black soybeans have numerous health benefits owing to their high polyphenolic content, antioxidant activity, and antitumor effects. We previously reported that the Korean black soybean cultivar 'Soman' possesses higher anthocyanin isoflavone contents superior potential than other cultivars landraces (Seoritae) do. Here, we investigated compared effects of Soman Seoritae aimed elucidate possible mechanisms action. inhibited cancer cell proliferation was more potent Seoritae. Mechanistically,...
This study was performed to investigate the distribution of phenolic compounds in peanut skins various cultivars, as well their antioxidant and anti-inflammatory effect (Arachishypogaea L. cv. K-Ol, Sinpalkwang, Daan, Heuksaeng) extraction solvent. The major components red cultivars (K-Ol, Daan) were identified proanthocyanidin, catechin, gallic acid, coumaric hesperidine, whereas black cultivar (Heuksaeng) anthocyanin, ferulic quercetin. DPPH ABTS radical scavenging activities, FRAP values...
In the bioethanol production process employing citrus peels, a large amount of enzymatic hydrolyzed residues is generated as waste material. The bioactive compounds, and antioxidant anticancer activities these were investigated in present study. Hydrolyzed exhibited similar activity unhydrolyzed control, which was positively correlated to contents total phenols, flavonoids carotenoid. Some (naringin, naringenin, hesperetin neohesperidin) two high value co-products (D-limonene galacturonic...
Abstract This study was conducted to evaluate the biological activities of sweet potato tips and tubers. Antioxidant activity 2,2‐azino‐bis 93‐ethlbenzothiazoline‐6‐sulphonic acid) diammonium salt (ABTS) 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) radical scavenging had highest value 32.45 mg, AAE/g, 15.10 mg respectively, in ‘ Pungwonmi ’ tips. Angiotensin converting enzyme I inhibitory ranged between 47.72% Sinjami tubers 62.25% α‐Glucosidase 78.81% 62.93% Juhwangmi tubers, respectively. In...
Alzheimer's disease, a major cause of dementia, is characterized by impaired cholinergic function, increased oxidative stress, and amyloid cascade induction. Sesame lignans have attracted considerable attention owing to their beneficial effects on brain health. This study investigated the neuroprotective potential lignan-rich sesame cultivars. Among 10 varieties studied, Milyang 74 (M74) extracts exhibited highest total lignan content (17.71 mg/g) in vitro acetylcholinesterase (AChE)...
The objective of this study was to evaluate the effects heat treatment on phenolics and antioxidant activity rice hull. Heat performed at temperatures 80∼140℃ for 1∼5 h, heated hull extracted with 80% (v/v) methanol in an ultrasonic bath. highest total polyphenol flavonoid content (10.68 ㎎ gallic acid equivalents/g 1.83 catechin equivalents/g, respectively) occurred 130℃ 5 h. During treatment, free phenolic acids increased compared that bound acids....
본 연구에서는 제주에서 자생하는 동백나무 겨우살이의 용매별 기능성 성분 및 항산화 활성에 대한 평가를 시행하였다. 총 폴리페놀 플라보노이드 함량을 분석한 결과 모두 70% 에탄올 추출물에서 높은 보였다. DPPH, hydrogen peroxide 소거능, ferrous ion chelating, 환원력을 통해 활성을 측정하고 이를 EC<sub>50</sub> EC<sub>0.5</sub>로 나타낸 모든 실험에서 에탄올을 용매로 사용한 겨우살이 나타내었다. 상기의 결과를 통하여 함량과 활성간의 깊은 관련성을 예상해볼 수 있었고 상관관계를 분석해 결과, 활성이 0.01 0.05 수준에서 유의한 보임을 확인할 있었다. 이러한 결과들을 잠재적 항산화제로서의 제주산 동백 가능성이 있다고 판단되어 향후 구체적인 연구가 필요하다고 사료된다. Mistletoes are hemi-parasitic plant growing on different host tree and shrubs. They...
본 연구에서는 추출용매에 첨가하는 산의 종류 및 농도를 달리하여 검정콩으로부터 안토시아닌 프로안토시아니딘 색소의 추출효율에 대하여 연구하였다. 종류는 hydrogen chloride(HCl), acetic acid, formic phosphoric acid citric acid였으며, 사용된 농도는 0.1, 0.2, 0.3, 0.5 0.7%였고 80% 메탄올을 추출용매로 사용하였다. 총 함량은 농도에 따라 0.74~1.74 mg/g 범위였으며 0.3% HCl 처리구가 가장 높았다. 검정콩의 주요 안토시아닌은 C3G, D3G Pt3G였으며 구성 중 C3G의 비율이 2.01~5.29 범위로 포도씨나 팥의 프로안토시아닌보다 더 많은 양이 함유되어 있었다. 연구 결과로부터 안토시아닌과 프로안토시아니딘의 추출 시 농도가 중요한 변수이며, 최적 추출조건은 HCl을 포함하는 메탄올이라 판단된다.
Sesame (Sesamum indicum L.), an oilseed crop, is gaining worldwide recognition for its healthy functional ingredients as consumption increases. The content of lignans, known their antioxidant and anti-inflammatory effects, a key agronomic trait that determines the industrialization sesame. However, study genetics physiology lignans in sesame challenging, they are influenced by multiple genes environmental factors, therefore, understanding gene function synthetic pathways related to lignan...
This study investigated the changes in functional components of three cultivars (Kunalbori, Dahan, and Hinchalssalbori) over a 6 day germination period; these were selected because their varied characteristics applications. Barley produced from was subjected to days germination. Germinated barley analyzed for total polyphenol, flavonoid, hordenine, arabinoxylan, soluble γ‐aminobutyric acid, γ‐oryzanol contents. The polyphenol content increased with period, corresponding 1.47–3.83, 1.41–3.42,...
The phenolic compounds and radical scavenging activity of ethanolic extracts five adzuki beans were evaluate according to cultivar. predominant acids in cultivars bean (+)-catechin gallic acid. Antioxidant capacities determined using 2,2-diphenyl-1-picrylhydrazyl 2,2-azinobis (3-ethylbenothiazoline-6-sulphonic acid) diammonium salt, reducing power was positively enhanced the total polyphenolic content. In a cell-based assay, showed cytoprotective effects against oxidative stress induced by...
추출 온도와 시간에 따른 옻나무 부위별 추출물의 총 페놀 및 플라보노이드 함량과 항산화활성을 측정하였다. 총페놀 함량은 온도 160℃에서 47.82 mg GAE/g으로 가장 높았으며, 100℃ 이하의 온도에서는 유의적인 차이가 없었으나 120℃ 이상의 시간 3시간까지는 증가하다가 5시간에서는 감소하였다. 플라보노이드는 온도가 증가함에 따라 증가하여 140℃, 1시간에서 8.04 CE/g으로 높은 함량을 나타내었다. DPPH 라디칼 소거활성은 시간의 증가에 3시간에서 34.23 TE/g으로 그 이후에는 ABTS 소거활성과 유사하였고 140℃에서 3시간 추출한 수피 추출물에서 51.58 AEAC/g으로 높게 나타났다. 페놀과 DPPH와 소거활성을 감안할 때 효율적인 조건은 140℃와 3시간이었다.
가온숙성조건에 따른 도라지의 이화학적 특성 및 항산화 활성의 변화를 살펴보기 위하여 도라지를 알루미늄호일필름에 포장한 후 60~80°C에서 5~50일간 숙성시켜 pH, 총산도, 갈변도, 5-HMF 함량, 총 폴리페놀 DPPH ABTS 라디칼 소거활성을 측정하였다. 숙성온도와 기간이 증가함에 따라 도라지 물 추출물의 pH는 5.22에서 4.17까지 감소하였으며, 총산도는 0.265에서 0.998 lactic acid eq%까지 증가하였다. 갈변도와 함량은 숙성온도 기간에 각각 0.092~1.002와 0.00~50.40 mg/g 범위에서 숙성이 진행됨에 0.589~2.358 증가하였으며, 소거활성도 0.149~1.244 0.354~1.509 mg Trolox eq/g 숙성조건에 활성들 간에 높은 상관관계가 있었으며, pH와 -0.910(P<0.01), 0.880(P<0.01), 함량과 소거활성은 0.885(P<0.01)와 0.745(P<0.01)로 양의 상관관계를 나타내었다....
Astragalus membranaceus (AM) has been used for anti-oxidative, anti-inflammatory, anti-cancer, and immunomodulatory activities. In this study, we confirmed that the anti-oxidative anti-inflammatory effects of AM were enhanced after it was fermented by Lactiplantibacillus plantarum. The effect measured 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical levels, total phenolic contents (TPC), reducing power, H2O2 levels. AM-LP MG5145 MG5276 showed higher free scavenging activity than AM-NF (51.22%)....
Objective: We aimed to evaluate the characterization of thinned immature Citrus unshiu fruits with regard their phytochemical profile and antioxidant capacity.Methods: Determination total phenolic, flavonoid, carotenoid ascorbic acid contents was done by UV-Visible spectrophotometry, whereas UPLC-mass detection used for analysis individual flavanone (naringin, hesperidin, hesperetin, neohesperedine narirutin) flavonol (rutin). In addition, free radicals (DPPH, O2-, H2O2 NO) scavenging assays...
본 연구에서는 야생화로부터 채밀한 제주 지역 벌꿀 및 벌집채꿀의 페놀성분 분석과 항산화 활성 비교평가를 시행하였다. 총 폴리페놀 플라보노이드 함량 측정 결과 물을 용매로 사용한 벌집채꿀에서 가장 높은 함량을 나타냈다. 또한 벌집채꿀 모두 농도 의존적으로 활성이 증가하는 양상을 보였으며, 이를 EC<sub>50</sub> EC<sub>0.5</sub> 값으로 환산한 벌집채꿀이 벌꿀에 비해 통계적으로 유의하게 활성을 나타내었다. 상기의 결과를 종합하여 봤을 때 함량과 활성간의 연관성이 있다는 것을 추측 해볼 수 있었고 상관관계를 통해 분석한 결과, 페놀 성분의 유의한 나타냄을 확인할 있었다. 이러한 결과들은 잠재적 천연식품소재로의 가능성을 시사하며 향후 이에 대한 체계적인 연구가 필요하다 사료된다. Although many studies have described the physiological effects of bee products, such as honey,...
본 연구는 몇 가지 식용 장미꽃 품종에 대한 새로운 식품소재 개발의 가능성을 살펴보기 위하여 기능 성분 및 항산화활성을 평가하였다. 총 폴리페놀 플라보노이드 함량은 덩굴장미가 각각 93.59 mg GAE/g 9.12 CE/g으로 높았으며, 아이스윙이 62.76 2.72 낮았다. ABTS와 DPPH 라디칼 소거능은 콜로라도 품종에서 0.45 0.52 AAE/mg으로 높았다. 페놀산 화합물은 3.13 mg/g으로 가장 높았으며 콜로라도, 온누리, 아이스윙 순으로 낮아져 항산화 활성과 유사한 경향이었다. 색도 중 a값은 0.93~19.69 범위였으며, 높은 값을 나타내었다. 안토시아닌 8.58 mg/L로 프로안토시아니딘 콜로라도와 1.82 2.50 CE/g의 나타내었고 온누리와 아이스윙은 검출되지 않았다. 이상의 결과로부터 덩굴장미의 함량이 높게 측정되어 관상적으로 그리고 식품소재로서의 적용이 가능하리라 판단된다.
Hyun-Joo Kim, Hye Young Park, Min Ji Yoon Lee, Jong Hee Jin Yu-Young Byong Won Mihyang and Byoungkyu Lee. Journal of the Korean Society Food Science Nutrition 2021;50:279-84. https://doi.org/10.3746/jkfn.2021.50.3.279
This study investigated the physicochemical properties of rice flour suspensions under ultrahigh hydrostatic pressure (UHP) treatment. Rice were subjected to 200, 400, and 600 MPa for 10 min, heat treatment was used as a control. Proximate characteristics different cultivar analyzed amylose, damage starch content, particle size. Changes in according UHP microscopic structure, iodine reaction, α-amylase hydrolysis rate, resistant content. Microscopic structural analyses showed that structures...