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Current Biochemistry
Published by Institut Pertanian Bogor
ISSN : 23557877     EISSN : 23557931     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Education
Current Biochemistry (CB) publishes the results of original research that contribute significantly to the understanding of the chemical compound and reaction that occur within living organism. Preference will be accorded to manuscripts that develop new concepts or experimantal approaches, particularly in the advancing areas of biochemistry science. Manuscripts that are primarily theoretical in nature or in the field of bioinformatics must be directed toward explaining important results previously not understood, making important predictions that can be experimentally tested, or developing segnificant advances in theory of general interest to biochemists. Submission of manuscripts in emerging areas in biochemistry, chemical biology, biophysics, proteomics, model studies and structures, cellular and molecular biology, computational biochemistry, biotechnology, and new methods development is encouraged especially if they address basic biochemical mechanisms.
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Articles 5 Documents
 1 
Search results for , issue "Vol. 7 No. 1 (2020)" : 5 Documents clear
Effectiveness of Gnetum gnemon Peel Extract as an Antihyperuricemic in White Rats Rattus norvegicus Akhmad Endang Zainal Hasan; Husnawati Husnawati; Chintia Ayu Puspita; Agus Setiyono
Current Biochemistry Vol. 7 No. 1 (2020)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.7.1.3

Abstract

Melinjo (gnetum gnemon) peel extract is believed to have potential as antihyperuricemic agent, however, in vivo assays have yet to be conducted to prove the antihyperuricemic activity. The objectives of this research were to analyze antihyperuricemic activity of melinjo peel extract in Sprague Dawley male white rat. A total of 24 rats were divided into 6 groups, which are a normal, positive, and negative group, 70% ethanolic extract of melinjo peel dose 450 mg/kg BW (ET I) and dose 900 mg/kg BW (ET II), and water extract of melinjo peel dose 93.35 mg/kg BW (EA). The results show that antihyperuricemic potency of 70% ethanolic extract of melinjo peel (ET1 and ET2) was more effective than allopurinol dose 90 mg/kg BW with a percentage decrease of 50% and 54%. Ethanol extract of melinjo peel was able to reduce uric acid levels to be in the range of normal values (<5 mg / dL). Bodyweight gain of rats given ethanol extract of melinjo peel dose 450 mg/kg BW had values that were close to the normal group. Melinjo peel extract contained flavonoid, tannins, saponin, and triterpenoid.
Cytotoxic Activity of Citral from Cymbopogon nardus as Anticancer of MCM-B2 Cell Hasim Hasim; Surya Pangidoan Nasution; Silvi Octavia Kurniawati; Indah Rachmawati
Current Biochemistry Vol. 7 No. 1 (2020)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.7.1.4

Abstract

Cancer is a deadly disease caused by cell abnormalities characterized by uncontrolled cell growth. One type of cancer that is the second leading cause of death is breast cancer. Lemongrass (Cymbopogon nardus) is a plant containing citral and geraniol which has the potential as an anticancer. This research was aimed to analyze the potential of essential oils from citronella as antiproliferation of MCM-B2 breast cancer cells. The results of this research showed that lemongrass essential oil was able to significantly reduce the growth of MCM-B2 cancer cells (p<0.05). The concentration of 3 ppm showed an significant difference in doxorubicin, and the concentration of 24 ppm had the highest inhibitory activity with an IC50 value of 5.38 ppm. Keywords: Antiproliferation, breast cancer, MCM-B2, essential oils, fragrant lemongrass
Perbedaan Bagian-bagian Tanaman Krokot (Portulaca grandiflora Hook.) terhadap Kandungan Total Fenolik dan Flavonoid serta Aktivitas Antioksidan Husnawati Husnawati; Ukhradiya Magharaniq Safira Purwanto; Aulia Ayu Rispriandari
Current Biochemistry Vol. 7 No. 1 (2020)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.7.1.2

Abstract

Antioksidan diperlukan untuk menangkal radikal bebas dalam tubuh serta stress oksidatif yang mendorong proses penuaan dan berbagai penyakit degeneratif. Portulaca grandiflora Hook. diketahui memiliki potensi sebagai antioksidan. Perbedaan bagian-bagian tanaman dapat menyebabkan perbedaan kandungan fitokimia, yang kemudian dapat mempengaruhi aktivitas antioksidannya. Penelitian ini bertujuan mengukur kandungan total fenolik dan flavonoid pada organ daun, batang tua, batang muda, dan bunga dari tanaman krokot (Portulaca grandiflora Hook.) yang diekstrak menggunakan etanol 96% serta menentukan aktivitas antioksidan dari ekstrak tersebut dengan metode DPPH. Hasil penelitian menunjukkan bahwa setiap organ tanaman krokot mengandung konsentrasi senyawa fenolik dan flavonoid yang berbeda. Kandungan total fenolik dan flavonoid paling tinggi terdapat pada bagian daun (113.26 ± 3.85 mg GAE/g dan 97.99 ± 1.28 mg QE/g), tetapi aktivias antioksidan tertinggi terdapat pada bagian batang tua dengan nilai IC50 122.15 ± 1.30 ppm (tergolong antioksidan sedang). Kata kunci: Antioksidan, Fenolik, Flavonoid, Portulaca grandiflora Hook.
Antibacterial Activity of Leaf Extracts of Anredera cordifolia (Ten.) Steenis and Muntingia calabura L. Against Streptococcus pneumoniae Nuke Annisa Nasution; I Made Artika; Dodi Safari
Current Biochemistry Vol. 7 No. 1 (2020)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.7.1.1

Abstract

Antibacterial resistance in Streptococcus pneumoniae has been increasing and is one of ongoing global concern. The need to find new antibacterial agents against Streptococcus pneumoniae is of paramount importance. Medicinal plants are prospective sources of antibacterial agents. The aims of the present study were to determine the activity of leaf extraxt of Anredera cordifolia (Ten.) Steenis and Muntingia calabura L. against Streptococcus pneumoniae. Leaves of Anredera cordifolia (Ten.) Steenis were extracted using 96% ethanol, while the leaves of Muntingia calabura L were extracted using 100% methanol. The leaf extracts of the two plants obtained were bioassayed for antibacterial activity against Streptococcus pneumoniae ATCC 49619 and a clinical isolate Streptococcus pneumoniae PU 067. Results showed that leaf extracts of both Anredera cordifolia (Ten.) Steenis and Muntingia calabura L. have antibacterial activity in vitro against Streptococcus pneumoniae ATCC 49619 at crude extract concentrations of 25%, 50%, 75% and 100% (w/v). Both plants extracts showed strongest activity against S. pneumoniae ATCC 49619 at extract concentration of 75%. In addition, the extracts of both plants have inhibitory activity against growth of the clinical isolate Streptococcus pneumoniae PU 067. Both plant extracts showed strongest activity against S. pneumoniae PU 067 at extract concentration of 100%. Therefore, leaf extracts of Anredera cordifolia (Ten.) Steenis and Muntingia calabura L. can potentially be used as a source of antibacterial agent for Streptococcus pneumoniae. Keywords: Antibacterial agent, Anredera cordifolia (Ten.) Steenis, Muntingia calabura L., Streptococcus pneumoniae.
Analysis of Blood Hemoglobin Levels Using Biosensors Based on Heme Oxygenase from Serratia marcescens Ahmad Irvan Pratama; Aisyah Sahara; Sintia Intan Agsari
Current Biochemistry Vol. 7 No. 1 (2020)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.7.1.5

Abstract

Hemoglobin levels are influenced by nutrition, iron conditions, and body metabolism. One of the medical disorders related to human blood, especially erythrocyte levels is anemia. This condition causes the need for effective and efficient methods of measuring blood hemoglobin levels, including in terms of cost. One alternative measurement of hemoglobin levels that can be used is the heme oxygenase-based sensor from Serratia marcescens. This study aims to develop techniques to measure blood hemoglobin levels by utilizing biological sensor based on heme oxygenase fromSerratia marcescens. The stages of the experiments include: rejuvenation and production of Serratia marcescens isolates, isolation of heme oxygenase, purification of enzymes with ammonium sulphate 45-65% and 65-85% saturation, measurement of protein content and enzyme activity, enzyme immobilization to the surface of carbon electrodes, and assay of biosensor heme oxygenase kinetics. Test of protein content and enzyme activity produces enzyme specific activity at 45-65% fraction of 0.0158 U/mg and at 65-85% fraction of 0.0069 U/mg, so the fraction to be used in biosensors is 45-65% fraction. The biosensor kinetics test results in a hemoglobin level of 12.0, 13.8, and 14.3 g/dL in blood samples A, B, and, C, while the hemoglobin level measured in a standard laboratory test is 12.0, 13.8, and 14.3 g/dL. It was concluded that the biosensors developed in this study can measure hemoglobin levels in blood samples with a precision of 0.8 and an accuracy of 96.04%.

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