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Dive into the research topics where Enny Ratnaningsih is active.

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Featured researches published by Enny Ratnaningsih.


Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal | 2006

Identifikasi Senyawa Alkaloid dari Akar Piper sarmentosum Roxb. Ex Hunter dan Uji Aktivitasnya terhadap Jamur Candida albicans

Hartiwi Diastuti; Sadiah Achmad; Enny Ratnaningsih

Piper sarmentosum Roxb. Ex Hunter or “Sirih duduk” has long been used for traditional medicine to cure various diseases, such as fungus infections. The investigation of the bioactive compounds of P . sarmentosum roots has not been carried out. This research was aimed to isolate the bioactive compounds from P. sarmentosum roots. The results showed that methanol extracts of P. sarmentosum roots have an activity on Candida albicans . The separation a bioactive compounds from methanol extracts of P. sarmentosum roots was performed by column chromatography, thin layer chromatography and recrystalizations. The identifications of the bioactive compounds were carried out using ultra violet spectrometry, infrared spectrometry, gas chromatography-mass spectrometry and nuclear magnetic resonance spectrometry. The results indicated that from methanol extracts, an alkaloid compound of piperoylpyrol derivative was 5-hydroxy-5- (3,4-methylenedioxyphenyl)-2-pentenoyl pyrol, could be purely isolated. Examination of bioactivity at concentration 0.10-2.50 mg/ml showed that this compound had an activity on C. albicans.


Algal Research-Biomass Biofuels and Bioproducts | 2015

Tropical marine Chlorella sp. PP1 as a source of photosynthetic pigments for dye-sensitized solar cells

Zeily Nurachman; Hartini H; Wiwit Ridhani Rahmaniyah; Dewi Kurnia; Rahmat Hidayat; Bambang Prijamboedi; Veinardi Suendo; Enny Ratnaningsih; Lily Maria Goretty Panggabean; Santi Nurbaiti


Industrial Crops and Products | 2014

Biorefinery methods for separation of protein and oil fractions from rubber seed kernel

Widyarani; Enny Ratnaningsih; Johan P.M. Sanders; Marieke E. Bruins


Applied Microbiology and Biotechnology | 2016

Production of hydrophobic amino acids from biobased resources: wheat gluten and rubber seed proteins

Widyarani; Yessie W. Sari; Enny Ratnaningsih; Johan P.M. Sanders; Marieke E. Bruins


Applied Biochemistry and Biotechnology | 2013

Screening, Gene Sequencing and Characterising of Lipase for Methanolysis of Crude Palm Oil

Enny Ratnaningsih; Dewi Handayani; Fatiha Khairunnisa; Ihsanawati; Sari Dewi Kurniasih; Bill Mangindaan; Sinta Rismayani; Cica Kasipah; Zeily Nurachman


Jurnal Matematika & Sains | 2009

Optimasi Proses Overproduksi, Pemurnian dan Karakterisasi Protein Mga Sebagai Molekul Target Untuk Pencegahan Infeksi oleh Streptococcus Pyogenes

Muhaimin Muhaimin; Oei Ban Liang; Enny Ratnaningsih; Endang Purwantini; Debbie Soefie Retnoningrum


Hayati Journal of Biosciences | 2008

Characterization of Extracellular Penicilin G Acylase Produced by A New Local Strain of Bacillus subtilis BAC4

Supartono; Enny Ratnaningsih; Sadijah Achmad; Oei Ban Liang


Indonesian Journal of Biotechnology | 2018

Cloning of acetyl-CoA acetyltransferase gene from Halomonas elongata BK-AG18 and in silico analysis of its gene product

Ni Putu Yuliastri; Enny Ratnaningsih; Rukman Hertadi


Indonesian Journal of Biotechnology | 2018

Expression of haloacid dehalogenase gene and its molecular protein characterization from Klebsiella pneumoniae ITB1

Ridani Rino Anggoro; Enny Ratnaningsih


Indonesian Journal of Biotechnology | 2018

Cloning and expression of haloacid dehalogenase gene from Bacillus cereus IndB1

Enny Ratnaningsih; Idris Idris

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Oei Ban Liang

Bandung Institute of Technology

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Zeily Nurachman

Bandung Institute of Technology

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Sadijah Achmad

Bandung Institute of Technology

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Widyarani

Indonesian Institute of Sciences

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Johan P.M. Sanders

Wageningen University and Research Centre

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Marieke E. Bruins

Wageningen University and Research Centre

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Bambang Prijamboedi

Bandung Institute of Technology

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Bill Mangindaan

Bandung Institute of Technology

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Candra Yulius Tahya

Bandung Institute of Technology

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Dewi Handayani

Bandung Institute of Technology

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