<?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 8 Issue 11</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, “SIRIH HUTAN”, 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>Simanjuntak</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 “Sirihhutan”, 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’,6’-dihydroxy-4’-methoxy dihydrochalcone and 2’,6’,4-trihydroxy-4’-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=6318&title=HYDROCHALCONE COMPOUNDS FROM INDONESIAN MEDICINAL PLANT, “SIRIH HUTAN”, 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) [RJC</References> </References> </Journal> </Article> </ArticleSet>