Research Article: Application of HPLC and response surface methodology for simultaneous determination of curcumin and desmethoxy curcumin in Curcuma syrup formulation

Niken K. Prabaningdyah, Sugeng Riyanto, Abdul Rohman, Chairany Siregar

DOI: 10.7324/JAPS.2017.71207    

[Abstract]           [Full Text PDF]


Short Communication: Application of FTIR spectroscopy and multivariate calibration for analysis of curcuminoid in syrup formulation

Niken K. Prabaningdyah, Sugeng Riyanto, Abdul Rohman

DOI: 10.7324/JAPS.2018.8324    

[Abstract]           [Full Text PDF]


Research Article: Application of Factorial Design on the Extraction of Green Tea Leaves (Camellia sinensis L.)

Eka Indra Setyawan, Abdul Rohman, Erna Prawita Setyowati, Akhmad Kharis Nugroho

DOI: 10.7324/JAPS.2018.8419    

[Abstract]           [Full Text PDF]


Short Communication: Application of Liquid Chromatography-Photodiode Array Detector for Analysis of Whitening Agents in Cream Cosmetics

Sudibyo Martono, Iis Febriani, Abdul Rohman

DOI: 10.7324/JAPS.2018.8520    

[Abstract]           [Full Text PDF]


Research Article: Application of H-NMR metabolite fingerprinting and chemometrics for the authentication of Curcuma longa adulterated with Curcuma manga

Anjar Windarsih, Abdul Rohman, Respati Tri Swasono

DOI: 10.7324/JAPS.2018.8610    

[Abstract]           [Full Text PDF]


Short Communication: Application of Fourier transform infrared (FTIR) spectroscopy coupled with multivariate calibration for quantitative analysis of curcuminoid in tablet dosage form

Chairany Siregar, Sudibyo Martono, Abdul Rohman

DOI: 10.7324/JAPS.2018.8821    

[Abstract]           [Full Text PDF]


Research Article: Liquid Chromatography and Fourier Transform Infrared Spectroscopy for quantitative analysis of individual and total curcuminoid in Curcuma longa extract

Ratna Wulandari, Sudjadi, Sudibyo Martono, Abdul Rohman

DOI: 10.7324/JAPS.2018.8916    

[Abstract]           [Full Text PDF]


Mini Review: The employment of spectroscopic techniques coupled with chemometrics for authentication analysis of halal pharmaceuticals

Abdul Rohman, Nina Salamah

DOI: 10.7324/JAPS.2018.81009    

[Abstract]           [Full Text PDF]


Review Article: Application of near- and mid-infrared spectroscopy combined with chemometrics for discrimination and authentication of herbal products: A review

Abdul Rohman, Anjar Windarsih, M A. Motalib Hossain, Mohd Rafie Johan, Md. Eaqub Ali, Nurrulhidayah Ahmad Fadzilah

DOI: 10.7324/JAPS.2019.90319    

[Abstract]           [Full Text PDF]


Short Communication: Antioxidant activity, total phenolic and flavonoid contents of selected medicinal plants used for liver diseases and its classification with chemometrics

Harto Widodo, Sismindari Sismindari, Widya Asmara, Abdul Rohman

DOI: 10.7324/JAPS.2019.90614    

[Abstract]           [Full Text PDF]


Research Article: Characterization of Eudragit types and Kollidon SR inter-polymer complexes and their effects on the drug release

Syaiful Choiri, Teuku Nanda Saifullah Sulaiman, Abdul Rohman

DOI: 10.7324/JAPS.2019.90708    

[Abstract]           [Full Text PDF]


Short Communication: Validation and application of reversed-phase high-performance liquid chromatography for quantitative analysis of acid orange 7 and Sudan II in blusher products

Novalina B. R. Purba, Abdul Rohman, Sudibyo Martono

DOI: 10.7324/JAPS.2019.90714    

[Abstract]           [Full Text PDF]


Mini Review: Chemical composition and antioxidant studies of underutilized part of mangosteen (Garcinia mangostana L.) fruit

Abdul Rohman, Mohamad Rafi, Gemini Alam, Muchtaridi Muchtaridi, Anjar Windarsih

DOI: 10.7324/JAPS.2019.90807    

[Abstract]           [Full Text PDF]


Review Article: Application of response surface methodology as mathematical and statistical tools in natural product research

Florentinus Dika Octa Riswanto, Abdul Rohman, Suwidjiyo Pramono, Sudibyo Martono

DOI: 10.7324/JAPS.2019.91018    

[Abstract]           [Full Text PDF]


Short Communication: Application of FTIR spectroscopy and multivariate calibration for determination of Acid Orange 7 and Sudan II in blusher products

Novalina B. R. Purba, Abdul Rohman, Sudibyo Martono

DOI: 10.7324/JAPS.2019.91115    

[Abstract]           [Full Text PDF]