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게릴라아사메누 ( Gelila Asamenew ),김헌웅 ( Heon-woong Kim ),이민기 ( Min-ki Lee ),이선혜 ( Seon-hye Lee ),이수지 ( Suji Lee ),박진주 ( Jin Ju Park ),최용민 ( Yongmin Choi ),이상훈 ( Sang-hoon Lee ),김정봉 ( Jung-bong Kim ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
In the present study, 19 commercially popular green and roasted coffee bean samples, and the beans, leaves, cascaras, cherries, flower pods, and stems part of the coffee tree cultivated in Korea using greenhouse were analyzed for their hydroxycinammoyl derivatives, methyl xanthine, and polyphenolic contents by ultra-performance liquid chromatography coupled with diode array detector and quadrupole time-of-flight mass spectrometry. A total of 59 phenolic acids including nine methyl esters of mono-, di-caffeoylquinic acid, and feruloylquinic acid were identified. The methyl hydroxycinnamoyl quinates are reported for the first time from Coffea arabica and Coffea robusta. The total phenolic content ranged from 5628.3 ± 227.2 to 8581.7± 109.1 mg/100 g dry weight (DW) in green, and 790 ± 63.4 to 1890.6 ± 37.4 mg/100 g DW roasted beans. Significant levels of flavan-3-ols (catechin and epicatechin), flavonol glycosides and C-glucosyl-xanthones (mangiferin and isomangiferin) were detected in all coffee tree parts except beans. Anthocyanin (delphinidin 3,5-O-diglucoside) and proanthocyanidins (trimers and tetramers) were identified predominantly in the leaves, cherries and flower pods. From methyl xanthine class, higher level of caffeine was determined together with trigonelline and theobromine. The results suggested that considering the utilization of other parts of coffee tree apart from beans can provide a divers health benefiting polyphenolic compounds.
이민기 ( Min-ki Lee ),김헌웅 ( Heon-woong Kim ),이선혜 ( Seon-hye Lee ),게릴라아사메누 ( Gelila Asamenew ),이수지 ( Suji Lee ),최용민 ( Yongmin Choi ),박진주 ( Jin Ju Park ),이상훈 ( Sang-hoon Lee ),김정봉 ( Jung-bong Kim ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
Capillary wormwood (Artemisia capillaris Thunberg) and crown daisy (Chrysanthemum coronarium L.) belonging to Family Asteraceae have been regarded as traditional medicinal herbs for preventive effects against chronic diseases including vascular disease, diabetes mellitus, and obesity. These plants are known for major resource of diverse caffeoylquinic acid (CQA) derivatives and flavonoid glycosides. Thus, objective of this study was to observe effects on high thermal and pressure processing to their CQA derivatives from capillary wormwood and crown daisy. A total of twenty-six hydroxycinnamoylquinic acid (HCQA) derivatives including p-coumaroylquinic acids (21), CQAs (3), and feruloylquinic acids (2) were separated and identified using UPLC-DAD-QToF/MS. Among them, a total twelve of HCQA derivatives was newly reported. Capillary wormwood and crown daisy were presented great majority of 5-O-caffeoylquinic acid (chlorogenic acid) and 3,5-di-O-caffeoylquinic acid (isochlorogenic acid A). In addition, 3,5-di-O-caffeoyl-4-O-succinylquinic acid was predominant compound in crown daisy. The total contents of HCQA derivatives were tended to decrease slightly during high thermal and pressure processing. Especially, the CQA derivatives which were esterified at 5- position of quinic acid moiety including chlorogenic acid and isochlorogenic acid A were tended to convert 3- and 4- position of CQA derivatives during processing. Therefore, proper high thermal and pressure processing is possible to enhance active ingredients. Furthermore, it can give valuable information for future research of functional foods and drugs.
Visual-FlaMap: PLS-DA 통계기법을 이용한 플라보노이드 프로파일의 웹기반 시각화 도구
이선혜 ( Seon-hye Lee ),김헌웅 ( Heon-woong Kim ),이민기 ( Min-ki Lee ),게릴라아사메누 ( Gelila Asamenew ),이수지 ( Suji Lee ),박진주 ( Jin Ju Park ),최용민 ( Yongmin Choi ),이상훈 ( Sang-hoon Lee ),김정봉 ( Jung-bong Kim ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
Databases related to polyphenols have been constructed and expressed on the website. These databases were provided valuable information such as phenolic compounds and their contents from food materials. Visual-FlaMap, a web-based application tool that visualized 3205 flavonoid contents from 268 of agro-foods was developed. The visualization of flavonoid profile was constructed as follow; 1) the metadata for systematic identification of flavonoids was collected from literatures 2) actual analytical data was produced by UPLC-DAD-QTOF/MS 3) the database was designed by Oracle software 4) both data were uploaded in the database using NutriManager. Results of this tool were expressed as a scatter plot using D3 chart, the PLS-DA algorithm designed using 'R' software for discriminant analysis on the basis of RDA flavonoids database. The designed algorithm clustered the sample set in to three primary groups; food type of ten classes (cereals, potatoes and starches, pules, nuts and seeds, vegetables, mushrooms, fruits, teas, wines, seasonings, and others), flavonoids type of seven classes (flavones, flavonols, flavanones, isoflavones, flavanols, chacones, and xanthones), and four levels of contents. Visual-FlaMap expected to be a powerful tool to provide considerable information on the distribution of flavonoids in diverse agro-food materials, to promote the utilization of these resources in food industry, and to support in developing competitive market.
UPLC-DAD-QToF/MS를 이용한 벚나무 속 과일의 페놀산 특성 비교
이수지 ( Suji Lee ),김헌웅 ( Heon-woong Kim ),이민기 ( Min-ki Lee ),이선혜 ( Seon-hye Lee ),게릴라아사메누 ( Gelila Asamenew ),최용민 ( Yongmin Choi ),박진주 ( Jin Ju Park ),이상훈 ( Sang Hoon Lee ),김정봉 ( Jung-bong Kim ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
Phenolic acids are widely distributed in plants. Especially, fruits may play a important role in preventing several diseases as phenolics rich source. In this study, phenolic composition and concentration of the Prunus genus were evaluated using ultra performance liquid chromatography with diode array detection and quadrupole time-of-flight mass spectrometric system (UPLC-DAD-QToF/MS). In positive ion mode, a total of 18 hydroxycinnamic acid derivatives (HCAs) and 1 hydroxybenzoic acid derivative were also identified and quantified from Prunus fruits. Among them, 15 phenolic acids were newly identified in the fruits of Prunus genus. One feruloyl acetylsucorse was also newly named from apricot: 3-O-feruloyl (2'-O-acetyl)sucrose (armenose A). Japanese apricot, apricot and cherry showed the highest amounts of HCAs. Overall, 3-O-caffeoylquinic acid was major phenolic acid in Prunus fruits. Various types of feruloyl acetylsucrose and p-coumaroyl acetylsucrose were identified in apricot and Japanese apricot, respectively. With previous studies, the catechin content was increased while flavonol content was reduced during the ripening stage of Japanese apricot, as harvest time late. It was also identified that HCAs content was also reduced from this research. It was considered that phenolic acids and flavonols were used for biosynthesis of catechins in maturing. On the basis of phenolic information, PLS-DA model showed different patterns by cluster in various genus and ripening stages.