View Item 
      •   IPB Repository
      • IPB e-Journal
      • Buletin Teknologi & Industri Pangan
      • View Item
      •   IPB Repository
      • IPB e-Journal
      • Buletin Teknologi & Industri Pangan
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Ekstraksi Dan St Abilit As Antosianin Dari Kulit Buah Duwet (Syzygium Cumim)

      No Thumbnail [100%x80]
      View/Open
      pdf (4.725Mb)
      Date
      2005
      Author
      Wijaya, C. Hanny
      Metadata
      Show full item record
      Abstract
      Anthocyanins were extracted from jambolan skins using neutral solvents e.i water, ethanol, isopropanol, water : ethanol (1 : 1), water : isopropanol (1 : 1), ethanol : isopropanol (1 : 1), and water : ethanol : isopropanol (1 : 1 : 1) at 5 and 27°C. The stability of the anthocyanins was as affected by pH, heat, oxidator, and light was investigated. The extraction using combinalion of water and isopropanol at 27°C showed the highest lotal yield, i.e. 71 .54 % (db). Furthermore, tile highest anthocyanin concentration and yield were obtained in the extracts using combination of water and ethanol at 27°C i.e. 10 007.03 mglL (db) and 2.78 % (db). respectively. At low pH, the pigment extracts showed high slability; and gradually decreased and lost colour when the pH was increased. The greatest colour intensity (red) was obtained at pHs values less than 3. 5. The anthocyanins were relatively stabie during heating at temperature of 40 dan 60'C in which more than 80% of pigment could be maintained for 4 hours of heating. Heating at high temperatures (80 and 100 'C) decreased the colour stability of more than 80%. Presence of oxidator H707 reduced the stability up to 73.52%. The UV and fluoresecent light exposure for 7 days also reduced the stability by 11. 47% and 1062%, respectively
      URI
      http://repository.ipb.ac.id/handle/123456789/55574
      Collections
      • Buletin Teknologi & Industri Pangan [37]

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository
        

       

      Browse

      All of IPB RepositoryCollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

      My Account

      Login

      Application

      google store

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository
        

       

      NoThumbnail