<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.2d1 20170631//EN" "JATS-journalpublishing1.dtd"> <ArticleSet> <Article> <Journal> <PublisherName>developer</PublisherName> <JournalTitle>International journal of Information Technology</JournalTitle> <PISSN/> <EISSN>n</EISSN> <Volume-Issue>volume 5 issue 6</Volume-Issue> <PartNumber/> <IssueTopic>Multidisciplinary</IssueTopic> <IssueLanguage>English</IssueLanguage> <Season>Aug-Sep</Season> <SpecialIssue>N</SpecialIssue> <SupplementaryIssue>N</SupplementaryIssue> <IssueOA>Y</IssueOA> <PubDate> <Year>-0001</Year> <Month>11</Month> <Day>30</Day> </PubDate> <ArticleType>Medicinal Article</ArticleType> <ArticleTitle>HYDROCHALCONE COMPOUNDS FROM INDONESIAN MEDICINAL PLANT, __doublequotosingSIRIH HUTAN__doublequotosing, Piper aduncum</ArticleTitle> <SubTitle/> <ArticleLanguage>English</ArticleLanguage> <ArticleOA>Y</ArticleOA> <FirstPage>10</FirstPage> <LastPage>20</LastPage> <AuthorList> <Author> <FirstName>R.</FirstName> <LastName>Kartika1</LastName> <AuthorLanguage>English</AuthorLanguage> <Affiliation/> <CorrespondingAuthor>N</CorrespondingAuthor> <ORCID/> <FirstName>*</FirstName> <AuthorLanguage>English</AuthorLanguage> <Affiliation/> <CorrespondingAuthor>Y</CorrespondingAuthor> <ORCID/> <FirstName>Sudrajat1</FirstName> <LastName/> <AuthorLanguage>English</AuthorLanguage> <Affiliation/> <CorrespondingAuthor>Y</CorrespondingAuthor> <ORCID/> <FirstName>Bustanussalam2 and P.</FirstName> <LastName>Simanjuntak2</LastName> <AuthorLanguage>English</AuthorLanguage> <Affiliation/> <CorrespondingAuthor>Y</CorrespondingAuthor> <ORCID/> </Author> </AuthorList> <DOI>10.31788/RJC.2019.1235186 </DOI> <Abstract>Isolation, purification and identification of two hydrochalcone compounds from Indonesian medicinal plant __doublequotosingSirihhutan__doublequotosing, Piper aduncum (Piperaceae) had been done. Isolation and purification of ethylacetate extract subjected to column chromatography (SiO2; (i).n-hexane-ethylacetate = 10:1 ~ 1 : 1; ethylacetate (ii).n-hexaneethylacetate = 8: 1 gave two pure compounds. Based on infra red, 1D __ampersandsign 2D-NMR, mass spectral data and comparison chemical shift of protons and carbons, the isolated compounds are 2__ampersandsign#39;,6__ampersandsign#39;-dihydroxy-4__ampersandsign#39;-methoxy dihydrochalcone and 2__ampersandsign#39;,6__ampersandsign#39;,4-trihydroxy-4__ampersandsign#39;-methoxy dihydrochalcone with free radical scavenging inhibitionvalues are 21.77 % and 90.1 % respectively.</Abstract> <AbstractLanguage>English</AbstractLanguage> <Keywords>Hydrochalcone; Piper aduncum; Piperaceae; 2’,6’-dihydroxy-4’-methoxy dihydrochalcone; 2’,6’,4- trihydroxy-4’-methoxy dihydrochalcone</Keywords> <URLs> <Abstract>https://developer.ubipayroll.com/ubijournal-v1copy/journals/abstract.php?article_id=6362&title=HYDROCHALCONE COMPOUNDS FROM INDONESIAN MEDICINAL PLANT, __doublequotosingSIRIH HUTAN__doublequotosing, Piper aduncum</Abstract> </URLs> <References> <ReferencesarticleTitle>References</ReferencesarticleTitle> <ReferencesfirstPage>16</ReferencesfirstPage> <ReferenceslastPage>19</ReferenceslastPage> <References>1. R. Kartika, T. Barus, R. Surbakti, and P. Simanjuntak, Asian J. of Chem., 26(18),6047(2014), DOI: 10.14233/ajchem.2018.20935 2. B. Ginting, L. Marpaung, T. Barus, and P. Simanjuntak, Asian J. of Chem., 28(1),199(2016), DOI: 10.14233/ajchem.2016.19541. 3. M. Simorangkir, T. Barus, R. Surbakti, and P. Simanjuntak, Asian J. of Chem., 28(1),203(2016), DOI: 10.14233/ajchem.2016.19541 4. H. brSembiring, T. Barus, L. Marpaung and P. Simanjuntak, Asian J. of Chem., 29(8), 1743(2017), DOI: 10.14233/ajchem.2017. 20363. 5. Mastura, T. Barus, L. Marpaung and P. Simanjuntak, Asian J. of Chem., 30(4), 84(2018), DOI: 10.14233/ajchem.2018. 20935. 6. T. Matsuda, A. Inazumi, Y. Yamada, W.G. Padolina, H. Kikizaki, and N. Nakatani, Phytochem., 20(10), 3227(1991). 7. M. Scott, H. R. Jensen, B.J.R. Philogene, J.T. Arnason, Phytochem. Rev., 7, 65(2008), DOI: 10.1007/S 11101-006 9058.5 8. C. Masuoka, M. Ono, Y. Ito and T. Nohara, Food Sci. Technol. Int. Tokyo, 3(3),285(1997) 9. R. Li, J. Yang, Y. Wang, Q. Sun, and H. H, Nat. Prod. Comm., 9(7),1011(2014) [</References> </References> </Journal> </Article> </ArticleSet>