Heny, Safitri (2017) KAJIAN IMPLEMENTASI EKSTRAK UBI JALAR UNGU (Ipomoea batatas (L.) Lam.) SEBAGAI INDIKATOR ALAMI PADA ANALISIS ASAM SALISILAT DALAM PRODUK BEDAK TABUR. Diploma thesis, Sekolah Tinggi Ilmu Kesehatan Nasional.
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Abstract
Purple sweet potato (Ipomoea batatas (L.) Lam.) is the source of anthocyanin. Anthocyanin on purple sweet potato is higher than the others. Anthocyanin pigment can be used to differentiate between acid and alkaline solutions. This subtance can be used as a natural indicator in analysis of titration. The study was aimed to test the accuracy and precision of the purple sweet potato’s extract as a natural indicator. The test was conducted to salicylic acid analysis in the loose powder. Extraction of purple sweet potato has done using ethanol 96% and HCl 1%. Measurement the accuracy and precision of the purple sweet potato’s extract are using % recovery and % KV. The result of salicylic acid analysis is not qualify from % recovery value for analyte concentrations more than 1% that is 97-103%. Precision values qualify, that is less than 1.2%. Purple sweet potato’s extract indicator has not the accuracy, and has good presicion as a natural indicator in analysis of salicylic acid in the loose powder product.
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | R Medicine > RN Pharmacy and Pharmaceutical Mathematics |
| Depositing User: | Unnamed user with email [email protected] |
| Date Deposited: | 23 Oct 2020 09:17 |
| Last Modified: | 23 Dec 2020 02:27 |
| URI: | http://librepo.stikesnas.ac.id/id/eprint/88 |
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