Journal
UJI STABILITAS PIGMEN DAN ANTIOKSIDAN EKSTRAK ZAT WARNA ALAMI KULIT BUAH NAGA
Indonesian Journal of Chemical Science · Vol. 3 No. 2 (2014)
- ISSN
- 2502-6844, 2252-6951
- Published
- 2014-08-01
- Publisher
- Universitas Negeri Semarang
- Language
- eng
Abstract
Zat pewarna alami yang berpotensi untuk diekstrak adalah kulit buah naga (Hylocereus undatus). Ekstraksi antosianin dilakukan menggunakan pelarut air, asam asetat, dan asam sitrat. Penelitian ini bertujuan mencari pelarut yang tepat untuk ekstraksi dan mengetahui stabilitas pigmen antosianin, yang meliputi tiga tahap. Tahap I adalah ekstraksi zat warna merah kulit buah naga dengan pelarut air, asam asetat 10%, dan asam sitrat 10%. Tahap II, stabilitas pigmen antosianin terhadap pengaruh pH, suhu, lama penyinaran dan aplikasi sirup buah naga putih. Tahap III, penghitungan aktivitas antioksidan dalam ekstrak antosianin. Hasil penelitian menunjukkan bahwa perlakuan terbaik adalah pada ekstraksi menggunakan pelarut asam sitrat 10% menghasilkan ekstrak warna merah dengan kadar antosianin 8,3556 mg/100gr dan stabilitas tertinggi selama 7 hari. Ekstrak warna stabil pada kondisi pH 2 – 5, namun terjadi penurunan pada pemanasan sampai suhu 80 ˚C dan penyinaran suhu tinggi. Aplikasi sirup buah naga menghasilkan pH 3,89 dan aktivitas antioksidan sebesar 76,71%.
Collaboration network of the authors
40 authors · 141 co-authorship links · showing the 40 most connected
Hover or tap a name to highlight its co-authors. Double-click to open the author's page.
- State University of Semarang
- Affiliation unknown
- Different organisations
- Same organisation
- Affiliation unknown
- Thicker line = more joint articles · bigger circle = more articles
Show as table
| Co-author | Organisation | Joint articles |
|---|---|---|
| Agung Tri Prasetya | State University of Semarang | 6 |
| Decky Avrilianda | State University of Semarang | 4 |
| Woro Sumarni | State University of Semarang | 4 |
| Sri Haryani | Affiliation unknown | 3 |
| F. Widhi Mahatmanti | Affiliation unknown | 3 |
| Eko Budi Susatyo | Affiliation unknown | 3 |
| Ella Kusumastuti | Affiliation unknown | 3 |
| Kasmui Kasmui | State University of Semarang | 2 |
| Wisnu Sunarto | Affiliation unknown | 2 |
| Bambang Eko Susilo | State University of Semarang | 2 |
| Trida Ridho Fariz | State University of Semarang | 2 |
| Sri Sukaesih | State University of Semarang | 2 |
| Siti Wahyuni | Affiliation unknown | 2 |
| Aditya Marianti | Affiliation unknown | 2 |
| Virgania Sari | Affiliation unknown | 2 |
| Sri Mantini Rahayu Sedyawati | Affiliation unknown | 2 |
| Rahmawati | State University of Semarang | 1 |
| Wiwik Hidayati | State University of Semarang | 1 |
| Harianingsih Harianingsih | Affiliation unknown | 1 |
| Vera Noviana Sulistyawan | Affiliation unknown | 1 |
| Muhammad Rizky Fahrizal Putra | Affiliation unknown | 1 |
| Muhammad Rafi Hanairo Sokmawan | Affiliation unknown | 1 |
| Jajang Jalaluddin | Affiliation unknown | 1 |
| Ellianawati Ellianawati | State University of Semarang | 1 |
| Lutfia Agustin | Affiliation unknown | 1 |
| Cepi Kurniawan | State University of Semarang | 1 |
| Budi Astuti | Affiliation unknown | 1 |
| Sungkowo Sungkowo | Affiliation unknown | 1 |
| Yuan Maylia Rosanti | Affiliation unknown | 1 |
| Rojja Maysa Rohmah | Affiliation unknown | 1 |
| Shinta Hilda | Affiliation unknown | 1 |
| Syiva Zakia Aulia | Affiliation unknown | 1 |
| Devitri Sulistyaningrum | Affiliation unknown | 1 |
| Ayu Anisa Larasati | Affiliation unknown | 1 |
| Edy Cahyono | State University of Semarang | 1 |
| Diah Tria Agustina | Affiliation unknown | 1 |
| Azki Anwarudin | Affiliation unknown | 1 |
Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.