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All Journal e-Journal Pustaka Kesehatan STOMATOGNATIC- Jurnal Kedokteran Gigi Jurnal Ilmiah Farmasi Farmasyifa
Indah Purnama Sary
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Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Library & Information Science Medicine & Pharmacology

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Pengembangan Strip Tes Berbasis Pararosanilina untuk Deteksi Formalin pada Sampel Tahu Alni Riskyna; Bambang Kuswandi; Indah Purnama Sary
Pustaka Kesehatan Vol 6 No 3 (2018)
Publisher : UPT Percetakan dan Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/pk.v6i3.9869

Abstract

Test strip based on pararosaniline has been developed for formaldehyde detection in tofu samples. The test strip as a formaldehyde sensors has been fabricated by immobilizing pararosaniline on whatman filter paper. The test strip was characterized for liniearity, detection limit, quantitation limit, selectivity, accuracy and precision. It has response time at 4 minutes and good liniearity was achieved in the concentration range of 2-80 ppm with correlation coefficient of (r) 0.999. The detection limit and quantitation limit were 0.048 ppm and 0.161 ppm, respectively. The RSD of reproducibility was found 8.04%, where recovery was 80-110%. The life time of the test strip was 14 days when it was stored at 40C. The test strip has been successfully applied to detect formaldehyde in tofu samples. The result also shown in agreement with spectrophotometry uv-vis method. Keywords: formalin, pararosaniline, tofu, immobilization, strip test
UJI AKTIVITAS ANTIOKSIDAN METODE DPPH SENYAWA TURUNAN KALKON 3-(3,4-DIMETOKSIFENIL)-1-(4’-HIDROKSIFENIL)-2-PROPEN-1-ON Dwi Koko Pratoko; Indah Purnama Sary
STOMATOGNATIC - Jurnal Kedokteran Gigi Vol 11 No 2 (2014)
Publisher : Fakultas Kedokteran Gigi Universitas Jember

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Abstract

A new chalcone derivate named 3-(3,4-dimethoxyphenyl)-1-(4-hydroxyphenyl)-2-propen-1-one has been synthesized. 4-hydroxyacetophenone and 3,4-dimethoxybenzaldehyde was mixtured to produce this compound by Claisen-Schmidt condensation. IR and 1H-NMR spectra was used to elucidate the compound structure. The purity of the compound was identified by TLC that showed only one spot and a narrow melting point. Thus, this compound was evaluated for the antioxidant activity by DPPH method and the result showed that IC50 is 318,2 ppm, lower than vitamin C as the standard.
SINTESIS DAN AKTIVITAS ANTIOKSIDAN 3-(3,4-dimetoksifenil)-1-(4-metilfenil)-2-propen-1-on Dian Agung Pangaribowo; Indah Purnama Sary; Dwi Koko Pratoko
STOMATOGNATIC - Jurnal Kedokteran Gigi Vol 11 No 2 (2014)
Publisher : Fakultas Kedokteran Gigi Universitas Jember

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Abstract

A new compound from chalcone derivate has been synthesized from 4-methylacetophenone and 3,4-dimethoxybenzaldehyde by Claisen-Schmidt condensation with catalyst of NaOH 60%. This compound is 3-(3,4-dimethoxyphenyl)-1-(4-methylphenyl)-2-propen-1-one. Structureelucidation was conducted by FTIR and 1H-NMR analysis. The compound is relatively pure and this can be identified by only one spot on TLC analysis and the range of melting point is narrow. Antioxidant activity evaluation of the compound with DPPH method showed that IC50 is 455.312 ppm, lower than vitamin C as the standard.
SKRINING FITOKIMIA DAN POTENSI DAYA HAMBAT EKSTRAK METANOL KULIT BATANG MERBAU PANTAI (Intsia bijuga) TERHADAP ENZIM α-GLUKOSIDASE Estu Wilujeng; Ayik Rosita Puspaningtyas; Indah Purnama Sary
Jurnal Ilmiah Farmasi Farmasyifa Vol 6, No 1 (2023)
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jiff.v6i1.10133

Abstract

Diabetes mellitus (DM) merupakan penyakit yang ditandai dengan terjadinya kenaikan kadar glukosa darah dan gangguan metabolisme yang berkaitan dengan sekresi insulin. Potensi kulit batang merbau pantai sebagai antidiabetes hanya dilakukan berdasarkan survey etnobotani saja sehingga diperlukan penelitian experimental laboratories untuk mengetahui manfaatnya dari segi kesehatan sebagai antidiabetes. Penelitian ini bertujuan untuk mengetahui golongan senyawa yang terkandung dalam ekstrak metanol kulit batang merbau pantai, melakukan analisis profil kurva Lineweaver-Burk dan menentukan nilai presentase penghambatan untuk mengetahui jenis pola dan potensi hambatan yang dihasilkan senyawa yang terkandung dalam ekstrak metanol kulit batang merbau pantai tehadap reaksi enzimatik α-glukosidase yang mana digunakan akarbosa sebagai kontrol positif. Penelitian ini menunjukkan bahwa ekstrak metanol mengandung golongan senyawa flavonoid, tanin dan alkaloid. Pada konsentrasi 25-500 µg/mL menghasilkan presentrase penghambatan yang cukup rendah jika dibandingkan dengan akarbosa yaitu 13-22%. Selain itu, diketahui pola penghambatan terhadap enzim α-glukosidase bekerja uncompetitive.
Co-Authors Alni Riskyna Ayik Rosita Puspaningtyas Bambang Kuswandi Dian Agung Pangaribowo Dwi Koko Pratoko Estu Wilujeng