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All Journal Jurnal Farmasi Higea
Zikra Azizah
Sekolah Tinggi Ilmu Farmasi (STIFARM) Padang
Medicine & Pharmacology

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Pengaruh Pengulangan Dan Lama Penyimpanan Terhadap Ketengikan Minyak Kelapa Dengan Metode Asam Thiobarbiturat (TBA) Zikra Azizah; Roslinda Rasyid; Desi Kartina
Jurnal Farmasi Higea Vol 8, No 2 (2016)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.213 KB) | DOI: 10.52689/higea.v8i2.150

Abstract

The research aims to determine the effect of repeat frying and duration of storage to rancidity coconut oil used thiobarbituric acid (TBA) method. The sample used were coconut oil with three different brands namely coconut oil A, B, dan C. The highest TBA number of samples coconut oil A, B, dan C was after three frying and 2 days of storage, TBA number was 0.879, 0.694, and 1.336 mg malonaldehyde/Kg sample. Based on data, can conclude samples coconut oil A, B dan C has under gone rancidity, but still below the maximum limit set by Badan Standarisasi Nasional (1991) was 3 mg malonaldehyde/Kg sample. The quality coconut oil A, B, dan C still below the maximum limit set by Badan Standarisasi Nasional (2013) such as acid number was 0.6 mg KOH/g, peroxide number was 2 meq/kg, saponification number was 196-206, iod number was 45-46, and free fatty acid was 0.3 %.
Uji Aktivitas Antioksidan dan Penetapan Kadar Vitamin C Ekstrak Buah Naga Merah Keunguan (Hylocereus lemairei (Hook.) Britton & Rose) Secara Spektrofotometri UV-Vis Zikra Azizah; Zulharmita Zulharmita; Eki Zulfian
Jurnal Farmasi Higea Vol 9, No 1 (2017)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.188 KB) | DOI: 10.52689/higea.v9i1.156

Abstract

The research on antioxidant activity test and the determination of the degree of vitamin C from fruit extracts purplish red dragon (Hylocereus lemairei (Hook.) Britton & Rose) has been done. On this research fresh dragon fruit meat mashed with blender and maceration methode used ethanol solvent 96% with three repetitions. The results of maceration evaporated with rotary evaporator until viscous extract. The test of free radical DPPH deterrent and the determination the degree of vitamin C in extracts purplish red dragon fruit (Hylocereus lemairei (Hook.) Britton & Rose) using vitamin C as a comparison. On the antioxidant activity test, extract was made with various concentration i.e. 1000 µ g/mL, 1500 µ g/mL, 2000 µ g/mL, 2500 µ g/mL, 3000 µ g/mL, obtained the percentage of antioxidant activity was 28.57 %, 34.67 %, 41.81 % , 46.13 %, and 51.78 %. On the determination of the degree of vitamin C extract, the extract is made with concentration 1000 µ g/mL used spectrophotometer UV-Vis showed that the degree of vitamin C in extracts purplish red dragon fruit (Hylocereus lemairei (Hook.) Britton & Rose) was 24.79 mg/100 g dragon fruit.
Pengaplikasian Cangkang Telur Dan Karbon Aktif Sebagai Adsorben Logam Timbal Sestry Misfadhila; Zikra Azizah; Rusdi Rusdi; Chyntia Diane Putri
Jurnal Farmasi Higea Vol 10, No 2 (2018)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.377 KB) | DOI: 10.52689/higea.v10i2.187

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Analisis Kandungan Logam Pb, Cd, Dan Zn Pada Daerah Bungus Teluk Kabung Dan Tarusan Dengan Metode Spektrofotometri Serapan Atom Boy Chandra; Zikra Azizah; Ana Silvia
Jurnal Farmasi Higea Vol 10, No 2 (2018)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.489 KB) | DOI: 10.52689/higea.v10i2.183

Abstract

Penelitian ini bertujuan untuk mengetahui kandungan logam Pb, Cd, dan Zn pada rumput laut (Gracilaria verrucosa) dengan metode spektrofotometri serapan atom. Parameter perlakuan berdasarkan tempat pengambilan sampel yang berbeda yaitu Bungus Teluk Kabung dan Tarusan. Analisis rumput laut dilakukan dengan cara pencucian dan pengabuan, kemudian ditambahkan Asam nitrat 0,1 N  dan Asam klorida 6 N dan diencerkan pada labu ukur 50 mL. Hasil penelitian ini menunjukkan kandungan logam Pb dengan sampel RLB(rumput laut Bungus) 0,1168 mg/kg dan untuk sampel RLT (rumput laut Tarusan) tidak ada sama sekali, yang berarti tidak melebihi ambang batas cemaran logam menurut SNI (0,5 ppm). logam Cd tidak ditemukan sama sekali pada kedua sampel. Logam Zn pada sampel RLB 4,276 mg/kg dan untuk sampel RLT 3,336 mg/kg yang berarti sudah melebihi ambang batas cemaran logam menurut SNI (2,0 ppm).Kata Kunci: Timbal; Kadmium; Seng;  Rumpul Laut;  Spektrofotometri Serapan Atom 
Co-Authors Ana Silvia Asra, Ridho Boy Chandra Chyntia Diane Putri Desi Kartina Eki Zulfian Misfadhila, Sestry R. Rusdi Rezza Puspita Sari Roslinda Rasyid Zulharmita Zulharmita