| dc.contributor.advisor | Suryadarma, Prayoga | |
| dc.contributor.advisor | Sailah, Illah | |
| dc.contributor.author | DASELVA, FADHLAN HAMMAN | |
| dc.date.accessioned | 2025-11-19T02:59:54Z | |
| dc.date.available | 2025-11-19T02:59:54Z | |
| dc.date.issued | 2025 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/171537 | |
| dc.description.abstract | Kaliks rosella (Hibiscus sabdariffa) merupakan sumber pewarna alami yang
mengandung senyawa antosianin dan fenolik dengan aktivitas antioksidan.
Penelitian ini bertujuan untuk mengetahui karakteristik pewarna hasil ekstraksi
kaliks rosella serta pengaruh kondisi lingkungan terhadap kestabilan warnanya.
Ekstraksi dilakukan menggunakan pelarut air dengan perbandingan bahan terhadap
pelarut 1:15 pada suhu 60°C selama 1,5 jam, kemudian dievaporasi menggunakan
rotary vacum evaporator pada suhu 60°C dengan tekanan 80 mbar. Hasil ekstraksi
menghasilkan cairan kental berwarna merah dengan aroma asam khas.
Karakterisasi meliputi analisis kadar total fenolik, kadar total antosianin, dan
kestabilan warna terhadap suhu, sinar ultraviolet, serta pH. Hasil menunjukkan
kadar total fenolik sebesar 51,03 ± 0,11 mg GAE/g dan kadar total antosianin 8,73
± 0,01 mg/L. Uji stabilitas warna menunjukkan bahwa antosianin dari kaliks rosella
rentan terhadap perubahan suhu, pH, dan paparan sinar ultraviolet, sehingga dapat
memengaruhi intensitas warna. Dengan demikian, penggunaan pewarna alami
ekstrak kaliks rosella dapat diaplikasikan pada produk sebagai bahan makanan. | |
| dc.description.abstract | Roselle calyx (Hibiscus sabdariffa) is a natural dye source containing anthocyanin
and phenolic compounds with antioxidant activity. This study aims to determine
the characteristics of the dye extracted from roselle calyx and the effect of
environmental conditions on its color stability. Extraction was carried out using
water as a solvent with a ratio of 1:15 at 60°C for 1.5 hours, then concentrated using
a rotary vacum evaporator at 60°C with a pressure of 80 mbar. The extraction results
in a thick red liquid with a distinctive sour aroma. Characterization includes
analysis of total phenolic content, total anthocyanin content, and color stability to
temperature, ultraviolet light, and pH. The results showed a total phenolic content
of 51,03 ± 0.11 mg GAE/g and a total anthocyanin content of 8,73 ± 0.01 mg/L.
The color stability test showed that anthocyanins from roselle calyx are susceptible
to changes in temperature, pH, and ultraviolet light exposure, which can affect color
intensity. Thus, the use of natural dyes from rosella calyx extract can be applied to
products as food ingredients. | |
| dc.description.sponsorship | | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Rekayasa Kondisi Penyimpanan dan Proses Aplikasi Pewarna Hasil Ekstrak Kaliks Rosella  | id |
| dc.title.alternative | PENGARUH KONDISI LINGKUNGAN TERHADAP PEWARNA HASIL EKSTRAK KALIKS ROSELLA | |
| dc.type | Skripsi | |
| dc.subject.keyword | antosianin | id |
| dc.subject.keyword | pewarna alami | id |
| dc.subject.keyword | rosella | id |
| dc.subject.keyword | stabilitas warna | id |
| dc.subject.keyword | total fenolik | id |