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All Journal HAYATI Journal of Biosciences Jurnal Teknologi Dan Industri Pangan Jurnal Ilmu dan Teknologi Kelautan Tropis Buletin Kimia VALENSI CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) JURNAL KIMIA SAINS DAN APLIKASI Microbiology Indonesia Current Biochemistry The Journal of Pure and Applied Chemistry Research Jurnal Riset Kimia Indonesian Journal of Pharmaceutical Science and Technology Jurnal Sumberdaya Hayati SC (Savana Cendana) : Jurnal Pertanian Konservasi Lahan Kering BERITA BIOLOGI BIOMA Indonesian Journal of Chemistry QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Menara Perkebunan Jurnal Ilmu Kefarmasian Indonesia Jurnal Jamu Indonesia Pharma Xplore : Jurnal Sains dan Ilmu Farmasi Indonesian Journal of Applied Research (IJAR) Jurnal Pusat Inovasi Masyarakat Makara Journal of Science Molekul: Jurnal Ilmiah Kimia Indonesian Journal of Jamu
LAKSMI AMBARSARI
Departemen Biokimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, IPB University Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Antioxidant Status of Sprague-Dawley Female Rat with Curcuminoids Nanoparticles of Balittro Curcuma Laksmi Ambarsari; Riska Febrianti; Edy Djauhari Purwakusumah
Current Biochemistry Vol. 6 No. 1 (2019)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.6.1.2

Abstract

Curcuma (Curcuma xanthorrhiza) is an Indonesian herbs plant with antioxidant activity. This research aimed to measure the increase of curcuminoids bioavailability through the effectivity of nanoparticle curcuminoids as an antioxidant for carbon tetrachloride (CCl4) induced rats. Nanoparticle curcuminoids were produced by homogenization-ultrasonication method showed results particle size of curcuminoids nanoparticle was 141.85±38.82 nm with polydispersity index was 0.233 and entrapment efficiency was 71%. During the treatment, the rat’s body weight was increased. Clinical symptoms of rats (behavior and feces) were normal. Nanoparticle curcuminoids can decrease malondialdehyde concentrations and increase peroxide, glutathione peroxide, and superoxide dismutase activity. Keywords : antioxidant, curcuminoid, solid lipid nanoparticle, Curcuma.
Potency Evaluation of Nanoparticles Moringa Leaves Extract as a Bioactive Candidate of Eco-Friendly Antifouling Paint Laksmi Ambarsari; Riksa Nur Wahyuni; Agung Isnanto; Rifany Fairuz Aqilah
Current Biochemistry Vol. 6 No. 2 (2019)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.6.2.2

Abstract

Biofouling has become a serious problem for the maritime industry. To minimize the impact of biofouling are protected by antifouling coating made from Tributytlin - polishing copolymer paints (TBT - SPC paint) which are heavy metal groups. New alternative to replace the antifouling material is with the flavonoids in Moringa leaf extract. The objective of this research to analyze the potential of Moringa leaf ethanol extract, effectiveness and stability of Moringa leaves ethanol extract as antifouling and its potential to be a bioactive candidate in antifouling coating. Moringa leaves were extracted by maceration method using 96% ethanol and the yield was obtained about 9.32%. Flavonoid compounds were isolated using a liquid-liquid extraction method and obtained a yield of 60.11%. Flavonoid compounds are encapsulated in nanoparticles with chitosan. PSA analysis shows particle size nanoparticle moringa leaf extract of 31.26 nm. Activity of antifouling is determined by inhibition and degradation test using P. aeruginosa and B. subtilis. Moringa leaf nanoparticles and Moringa leaf flavonoid extract caused biofilm inhibition of 43.55% and 10.29% for P. aeruginosa, while for B. subtillis 25.85% and 82.58%. The result of biofilm degradation by Moringa leaf nanoparticles and Moringa leaf flavonoid extract was 6.9% and 2.2% for P. aeruginosa, while B. subtillis was 87.85% and 65.91%. Keyword: antifouling coat, moringa leaves, nanoparticles.
The Potency of Nanocurcuminoid of Temulawak as A Preventive Agent for Lipid Peroxidation on Inflammation in Rats Waras Nurcholis; Chelsea; Laksmi Ambarsari
Current Biochemistry Vol. 6 No. 1 (2019)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.6.1.5

Abstract

The formation of prostaglandins and free radicals in the body occurs in response to inflammation. The use of non-steroidal synthetic drugs to overcome the effects of free radicals often causes harmful side effects to the body. Natural ingredients that have high antioxidant potential, such as curcumin, ginger are expected to overcome this problem. This study aims to measure the antioxidant potential of ginger nanocurcuminoid preparations coated with palmitic acid, by observing the lipid peroxide profile in the liver of inflammatory Spague-Dawley rats. SpagueDawley mice were induced with 1% carrageenan to trigger inflammation, then the lipid peroxide levels were measured after 24 hours. Measurement of lipid peroxide levels was carried out using a spectrophotometer with a wavelength of 532 nm. The size of the nanocurcuminoid preparation coated with palmitic acid was 561.53 nm with an IP value of 0.309. Lipid peroxide levels in the curcuminoid extract group at a dose of 100 mg / kg BW and the nanocurcuminoid group at a dose of 250 mg / kg BW were 0.27x10-4 nmol / g and 1.22 x10-4 nmol / g respectively. These showed that the antioxidant potential of temulawak nanocurcuminoids at a dose of 250 mg / kg BW was 114 times higher than that of curcuminoid extract at a dose of 100 mg / kg BW.
Potency of Bioactive Compounds in Indramayu Mango Peel Waste to Inhibit ACE2 Mustika Luthfia; Assifah Eryandini; Deki Geraldi; Chelsy Narita; Choirunnisa Miftahul Jannah; Laksmi Ambarsari
Current Biochemistry Vol. 8 No. 2 (2021)
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/cb.8.2.1

Abstract

According to reports, mango peel contains bioactive compounds—especially phenolic—threefold higher than the flesh. This issue underlies the research that aims to identify bioactive compounds from Indramayu mango peel which have the potential as ACE2 inhibitors. The study was initiated by extracting mango peel simplicia using aquadest, then carried out with phytochemical screening, and identification of compound content by LC-MS. The extraction obtained 21.3% of yield. The results of phytochemical screening showed that secondary metabolites in the form of alkaloids, flavonoids, saponins, and tannins were identified in the mango peel. At the same time, the LC-MS fragmentation results obtained 40 compounds based on the largest sample area. The result from fragmentation were tested for Lipinski bioavailability prediction and ADMET test and obtained 10 potential compounds. Molecular docking was performed on the ACE2 receptor with 10 sample ligands and 1 comparison ligand using YASARA Structure. All of the sample ligands (from Lipinski and ADMET test) showed higher free energies than comparison ligand, chloroquine. Mangiferin is a typical mango compound identified in LC-MS, had inhibitor activity against ACE2. Two-dimensional visualization using Discovery Studio showed mangiferin interaction with the receptor via hydrogen bond, hydrogen carbon bond and phi-anion interactions at three amino acid residues (Thr371, Glu375, Glu402) on the active site of ACE2. Keywords: ACE2, bioactive compound, mango peel, mangiferin, waste
Chemical Characteristics, Antioxidant Activity, Total Phenol, and Caffeine Contents in Coffee of Date Seeds (Phoenix dactylifera L.) of Red Sayer Variety Siti Warnasih; Ade Heri Mulyati; Diana Widiastuti; Zuniar Subastian; Laksmi Ambarsari; Purwantiningsih Sugita
The Journal of Pure and Applied Chemistry Research Vol 8, No 2 (2019): Edition May-August 2019
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2019.008.02.475

Abstract

Red Sayer is one of the date varieties from the United Arab Emirates. This variety is one type of dates that is imported into Indonesia and used as processed date palm juice producing waste, namely date seeds. Date seeds can be made into some coffee that is rich in antioxidants and does not contain caffeine. The purpose of this study is to determine the chemical characteristics, antioxidant activity, total phenol, and caffeine contents in coffee of the Red Sayer variety date seeds. Coffee of date seeds is made into powder and then analyzed for its contents of water, ash, protein, fat, carbohydrates and total sugar, besides its antioxidant activity, total phenol, and caffeine levels. The results of the analysis obtained are, as follows: 4.42±0.01% water, 1.17±0.04% ash, 8.55±0.64% protein, 7.34±0.07% fat, 78.52±0.76% carbohydrate, 16.39±0.01% total sugar, 23.81±0.22 μg/mL antioxidant activity (IC50) and 340.65±1.53 mg GAE / 100g total phenol, while caffeine is not detected. Red Sayer date seed coffee, therefore, can be a source of carbohydrates and natural antioxidants that does not contain caffeine.
AMPLIFIKASI GEN 16S-rRNA BAKTERI TERMOFILIK DARI SUMBER AIR PANAS, GUNUNG PANCAR BOGOR Suryani -; Laksmi Ambarsari; Efi Sanfitri Harahap
Jurnal Riset Kimia Vol. 3 No. 1 (2009): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v3i1.97

Abstract

 ABSTRACT Exploration of thermophilic bacteria that produce thermostable enzyme is most useful in application for enzyme base industrial. The aim of of this research is to isolate and amplificate the 16S-rRNA gene from thermophilic bacteria isolate at hotspring, Mount of Pancar, Bogor. The research steps consist of bacteria isolation, chromosomal DNA extraction, and amplification of 16S-rRNA gene. The water sample as source for bacteria was collected from four cauldrons. Temperature and pH for each cauldron are red cauldron 75-80°C, pH 7; black cauldron 55°C, pH 7; white cauldron 57°C, pH 7; and saline cauldron 25°C, pH 6, respectively. The bacteria were cultivated at Luria Bertani (LB) and Thermus media. The chromosomal DNA have been extracted. Gene amplification of 16 S-rRNA have been carried out by using universal primer (Bac F1 and Uni B1). The size of amplicon is ± 1.5kb. Keywords : thermophilic bacteria, chromosomal DNA extraction, amplification of 16S-rRNA gene
CHARACTERIZATION OF CRUDE EXTRACT POLYPHENOLOXIDASE ENZYME FROM BLACK TIGER SHRIMP (Penaeus monodon) Made Suhandana; Tati Nurhayati; Laksmi Ambarsari
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 5 No. 2 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.68 KB) | DOI: 10.29244/jitkt.v5i2.7564

Abstract

Shrimp is a  very important export  commodity with  high market value world wide. However, it is still facing problem related to the waste and deterioration quality as main issues for the shrimp industry. In this experiment, polyphenoloxidase from the carapace of Penaeus monodon was extracted and characterized. The research was carried out to obtain the optimum extraction condition and to evaluate the properties of enzyme i.e., pH, optimum temperature for activating enzyme, kinetic enzyme, and chelating on metal ion. The best method for PPO enzyme extraction used buffer with 1:3  proportion.  The optimum activity of enzyme was at pH 7 and temperature of 35°C. The kinematic enzyme (Km) value and the maximum substrate concentration were 5.42 mM and 7.5 mM, respectively.  Na+, Ca2+, Zn2+, and EDTA with concentration 5 and 10 mM inhibited enzyme activity.  Cu2+at concentration of 10 mM and Mn2+ at concentration 5 mM also inhibited enzyme activity Keywords: carapace, characterization, polyphenoloxidase, shrimp
STUDI IN SILICO CONVERSE REGION ETOPOSITE BINDING DOMAIN Pada ISOZIM HUMAN DNA TOPOISOMERASE II Tirta Setiawan; Laksmi Ambarsari; Tony Ibnu Sumaryada
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 4 No 1 (2016)
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.073 KB)

Abstract

ABSTRAK: DNA topoisomerase II (Top2) adalah enzim penting yang menangani permasalahan topologi pada DNA. Terdapat dua jenis Top2 pada manusia yaitu Top2A dan Top2B. Top2A diekspresikan pada sel yang aktif membelah seperti sel kanker sedangkan Top2B diekspresikan saat sel dalam fase istirahat. Peran penting inilah yang membuat DNA Top2A menjadi target  obat melawan kanker salah satunya obat etoposite. Sisi aktif pengikatan etoposite terhadap Top2B sudah dilakukan namun pada Top2A belum dilakukan. Studi pencarian area yang rapat dengan pensejajaran banyak sekuen pada Top2A dengan Top2B sebagai acuan bertujuan untuk pencarian sisi aktif pengikatan etoposite pada Top2A. Area yang rapat dengan kesamaan residu asam amino yang tinggi dapat digunakan untuk memprediksikan fungsi penting asam amino dalam enzim tersebut. Top2A dan Top2B memiliki kesamaan asam amino sebesar 80% dengan kesamaan struktur 71.81%. Asam amino aktif pengikatan etoposite pada Top2B Gly478, Asp479, Arg503, Met782 dan Gln778, dinyatakan mirip dan rapat terhadap residu Gly462, Asp463, Arg487, Met763 pada Top2A kecuali residu Gln778 dari Top2B namun penggantian ini tidak merubah struktur dari enzim tersebut karena sama-sama membentuk struktur alfa-heliks dan terletak pada posisi yang sama sehingga diprediksikan sisi aktif pengikatan etoposite pada enzim Top2B yaitu Gly478, Asp479, Arg503, Met782 dan Gln778memiliki fungsi yang sama dengan residu Gly462, Asp463, Arg487, Met763 dan Met767 dari Top2A. Hal ini menyebabkan etoposite juga dapat menghambat kerja enzim Top2A pada residu yang sama.   ABSTRACT: DNA topoisomerase II (Top2) is essential enzyme that solves the topological problems of DNA. Top2A and Top2B are two kind of Top2 in human. Top2A is expressed at differentiation active cells as cancer cells whereas Top2B is expressed at non differentiation cells or quiescent cells. Their critical role makes Top2B an attractive drug target against cancer as etoposite known as Top2 inhibitor. Active site for etoposite binding domain to Top2B has been done but in Top2A has not been done yet. Conserve region study by multiple sequence alignment between Top2A and Top2B as Top2B to be a template was aimed to search an active site for etoposite binding domain in Top2A. A conserve amino acid area with highest similarity was used to predict essential amino acid activity in the enzyme. Homology study shows that Top2A and Top2B have the same similarity of amino acids of 80% with  structure similarity of 71.81%. Active amino acids on Top2B for etoposite binding domain such as Gly478, Asp479, Arg503, Met782 dan Gln778 were found to be highly conserve with amino acid Gly462, Asp463, Arg487, Met763 on Top2A except Gln778 from Top2B but this does not change of structure of the enzyme because they have the same alfa-helix formations and positions so that it could be predicted that amino acids Gly478, Asp479, Arg503, Met782 and Gln778 on Top2B have similar activity and function with Gly462, Asp463, Arg487, Met763 and Met767 on Top2A.  This etoposite could inhibit the activity of the Top2A enzyme at same site.
Karakterisasi Xilanase dari Bakteri Xilanolitik XJ20 asal Tanah Hutan Taman Nasional Bukit Duabelas Jambi Indonesia INAYAH NOER MAZIDAH; LAKSMI AMBARSARI; ANJA MERYANDINI
Jurnal Sumberdaya Hayati Vol. 2 No. 1 (2016)
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.2.1.25-30

Abstract

Xylanase is an extracellular enzymes that can be produced by microbes which capable to degrade xylan into xilo-oligosaccharides (XOS) and xylose. Application of xylanase is still not optimal due to the lack of availability of superior microbial cultures producing xylanase. The purpose of this study was to determine the characteristics of xylanase produced by bacteria isolated from Forest land Bukit Duabelas National Park, Jambi, Indonesia. Xylanase produced by bacterial isolate XJ20 was selected for further enzymatic activity and characteritics assays. Xylanolytic activity was measured by using the 3.5-dinitrosalicylic acid (DNS) assay. High activity of xylanase was recorded at three times of incubation, which were 6 (0.015 U/mL), 14 (0.012 U/mL) and 20 (0.007 U/mL). The first peak and the second peak reached the highest activity at a temperature of 70 °C, however, the first peak reached the highest activity at pH 4.0 and a second peak at pH 7.0. pH 4.0 xylanase were incubated at room temperature and 70 °C has a half time consecutive 9 hours and 6 hours, whereas at pH 7.0, has a half time consecutive 4 hours and 3 hours. Stability of enzyme better at pH 4.0 and at room temperature. 
KARAKTERISASI ß-1,3-1,4-GLUKANASEBAKTERI ENDOFITIK Burkholderia cepacia ISOLATE76 ASAL TANAMAN PADI Ifa Manzila; Tri Puji Priyatno; Muhammad Faris Fathin; Laksmi Ambarsari; Yadi Suryadi; I Made Samudera; Dwi Ningsih Susilowati
BERITA BIOLOGI Vol 14, No 2 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i2.1819

Abstract

Pathogenic fungus is one of the constraints to increase crop production. Chemical control using fungicides caused negative effects either to the environment or increased pathogen resistance to fungicide. Biological control using microbial-producing ß glucanase is an alternative method to inhibit the growth of pathogenic fungus. The aim of this study was to characterize ß-1,3-1,4-glucanase produced by rice endophytic bacterium, B. cepacia E76. Purification was carried out by ammonium sulphate precipitation, dialysis, and ion exchange chromatography using DEAE sepharose Fast Flow. A further characteristic of the enzyme activity was studied using oatmeal-glucan substrate.Results showed that precipitation using saturated 80% ammonium sulphate generated a good yield with the purity increased by 11 fold and yield of 66%.After chromatography step, the ß-1,3-1,4-glucanase of B. cepacia was successfully purified with an increasedof purity up to 33 fold and yield of 4%. Based on 10% SDS-PAGE, the enzyme profiles had the molecular weight of 15, 48 and 55 kDa.Of the three isozymes, only the 48 kDa isozyme showed the strongest glucanase activity when grown on media containing glucan as substrate.
Co-Authors -, Suryani . SURYANI A.E. Zainal Hasan Ade Heri Mulyati Adrian Adiva Aghnia, Diya Agnia Nurul Jannati Agung Isnanto Agustina L.N. Aminin Ahmad Irvan Pratama Ainia Hanifitri Aisyah Girindra Akbar, Nadhira Fathiaz Akhiruddin Maddu Akhmad Endang Zainal Hasan Alimah, Shobiroh Nuur Ambarsavitri, Rahmadhani ANINDA INDRIANI Anja Meryandini Annisa , Alifia Mutiara Annisa Dhiya Athiyyah Khanza Aqilah, Rifany Fairuz Aris Tri Wahyudi Arwansyah Arwansyah Aryani, Hanifah Asrul Muhamad Fuad, Asrul Muhamad Assifah Eryandini Asvarhoza, Genta AYU LESTARI Azhari, Muhammad Alwin Chelsea Chelsea, Chelsea Chelsy Narita Choirunnisa Miftahul Jannah Deki Geraldi Dewi Seswita Zilda Diana Widiastuti DIMAS ANDRIANTO Djarot Sasongko Hami Seno DWI NINGSIH SUSILOWATI DWI NINGSIH SUSILOWATI Dwi SUBIYARTI Dwicesaria, Maheswari Alfira Dwiningsih Susilowati Edy Djauhari Purwakusumah Edy Djauhari Purwakusumah Efi Sanfitri Harahap Elvaza, Azzara Putri Faliha Arinda Lestari Farhan Azhwin Maulana Fathin, Muhammad Faris Fatriani, Rizka Febrianti, Riska Febriyanto, Dimas G Jeni christi A GIA PERMASKU Giovanny, Lisa Gustini Syahbirin H. M. Mochtar Hamidah, Wanda Hanhan Dianhar Harahap, Efi Sanfitri HARTUTIK EKA SUSANTI Hasim - Hasim Hasim Hayati Minarsih Heri Purwoto Hidayat, Radika Evita Hudayanti, Martini Husnawati Husnawati Husnawati, . I MADE ARTIKA I Made Samudera I Made Samudera, I Made I MADE SAMUDRA Ifa Manzila Ifa Manzila Ika Yuni Astutik Ika Yuni Astutik, Ika Yuni Ike Wahyuni Putri Ilham Kurniawan Ilham Kurniawan Imelia Dewi Imron RIYADI Inayah, Mazidah Noer Inda Setyawati, Inda Irma Rahmayani Isnanto, Agung Jaya Hardi Kandi, Rizky Putra Kapitan, Origenes Boy Karichsa Hariana Komalasari, Nurma Angeliani Latifah K Darusman Lestari, Faliha Arinda Liliyani , Ni Putu Peggy Lisa Giovanny Made Suhandana Madyastuti, Rini Marfira, Nurul Mega Safithri Miantika, Shafillah Muhamad Rifai Muhamad Rifai Muhammad Alwin Azhari Muhammad Farhan Muhammad Faris Fathin Muhammad Halim, Muhammad Mustika Luthfia Mustika Permatasari Mustopa, Syahrul Nabila Nur Nafiati Natalia Marbun, Natalia NISA RACHMANIA MUBARIK Nur Qadri Rasyid Nurhidayat Nurhidayat Nurul Marfira Nuur'Alimah, Shobiroh Nuur’Alimah, Shobiroh Pratama, Ahmad Irvan Pratiwi, Anggita Aziz Purwantiningsih Sugita Purwanto, Ukhradiya Magharaniq Safira Purwatiningsih Sugita Puspa Julistia Puspita Putra, Adriansyah Nanda Putri, Ike Wahyuni Radika Evita Hidayah Rahayu, Dyah Utami Cahyaning Rahman, Syabilla Aulia Rasyid, Nur Qadri Ridho Pratama Rifany Fairuz Aqilah Riki Riki Riksa Nur Wahyuni Rini Kurniasih, Rini Rini Novita Riska Febrianti Rosyidah, Rara Annisaur Rury Eryna Putri Sanro Tachibana Sarmila, Sarmila Setyanto Tri Wahyudi Shobiroh Nuur' Alimah Shobiroh Nuur'Alimah Siti Nur'aeni Siti Nurjanah Siti Warnasih Slameut, Fitria Soekarno Mismana Putra Steffanus Gozales Suryani - Suryani Suryani Syamsul Falah TATI NURHAYATI Tirta Setiawan Tony Sumaryada Tri Puji Priyatno Tri Puji Priyatno Uswatun Hasanah Vino , Okta Wahyuni, Riksa Nur Waras Nurcholis Winarti, Novia Yadi Suryadi Yadi Suryadi Yudha, Trah Zahra Silmi Muscifa Zuniar Subastian