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All Journal HAYATI Journal of Biosciences MEDIA PETERNAKAN - Journal of Animal Science and Technology Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Dan Industri Pangan Jurnal Akuakultur Indonesia Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils BERKALA SAINSTEK Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Penelitian Pascapanen Pertanian Indonesian Journal of Biotechnology Jurnal Sumberdaya Hayati BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Jurnal Bioteknologi & Biosains Indonesia (JBBI) JFMR (Journal of Fisheries and Marine Research) Jurnal Penelitian Pendidikan IPA (JPPIPA) Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology BIOEDUSCIENCE Jurnal Ilmu Nutrisi dan Teknologi Pakan Indonesian Journal of Chemistry Biosaintifika: Journal of Biology & Biology Education Menara Perkebunan Livestock and Animal Research Makara Journal of Science Jurnal Natural Berita Biologi Jurnal Perikanan Darat dan Pesisir (JPDP) Biodiversitas Journal of Biological Diversity
Anja Meryandini
Department Of Biology, Faculty Of Mathematics And Natural Sciences, IPB University, IPB Darmaga Campus, Bogor 16680; Center For Biotechnology, International Research Institute, IPB University, IPB Darmaga Campus, Bogor 16680
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Physics Veterinary

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Activity of Proteolytic and Amylolytic Enzymes from Bacillus spp. Isolated from Shrimp Ponds IT JAMILAH; ANJA MERYANDINI; IMAN RUSMANA; ANTONIUS SUWANTO; NISA RACHMANIA MUBARIK
Microbiology Indonesia Vol. 3 No. 2 (2009): August 2009
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.373 KB) | DOI: 10.5454/mi.3.2.4

Abstract

Accumulation of feed excess in commercial shrimp ponds due to overfeeding could decrease water quality. Protein and starch are the primary components of shrimp feed. This study was conducted to characterize extracellular proteases and amylases of Bacillus spp. isolated from shrimp ponds. 72 proteolytic and amylolytic Bacillus spp. isolates were screened from shrimp ponds in Karawang, West Java. Ten isolates were selected for further characterization for their growth and ability to reduce total suspended solid generated from commercial shrimp feed. Bacillus sp. DA 5.2.3 and L5 showed excellent activity in reducing total suspended solid, by 37 and 30% respectively. Protease and a-amylase activities of Bacillus sp. DA 5.2.3 isolate were consistently higher than that of L5. Maximum total and specific protease activity of DA 5.2.3 isolate was 2.0 U mL-1 and 40.9 U mg-1 respectively, while the activities of the L5 isolate were 2.1 U mL-1 and 23.0 U mg-1 respectively. Based on its 16S rRNA gene sequences, Bacillus sp. DA 5.2.3 showed 99% similarity to Bacillus cereus XHJ-2-6. Bacillus sp. DA 5.2.3 could potentially be applied to maintain water quality by reducing total suspended solid in water columns of shrimp ponds.
PURIFIKASI DAN KARAKTERISASI ENZIM PEKTINASE DARI Aspergillus ustus BL5 Yopi Yopi; Nanik Rahmani; Ade Andriani; Fitria Dewi; Anja Meryandini
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.646

Abstract

Pectinase is an enzyme that could hydrolyze pectin into galacturonic acid. Natural pectinase was produced by microbes such as bacteria, yeast, fungi and Actinomycetes. Application of pectinase in industry were mainly in juice industry, textile, pulp, tea, cocoa and coffee fermentation. In this research, we conducted purification and characterization of pectinase produced by Aspergillus ustus BL5 in submerged fermentation using commercial pectin. The result showed that the optimum of pectinase production was reached at 120 hours fermentation process with specific activity 0.59 U/mg. The crude extract of pectinase was then concentrated using PEG 6000 and purified by Sephadex G-75 gel filtration chromatography. There were 2 fractions contained pectinase which the activity was 4.15 U/mg (pectinase A) and 3.3 U/mg (pectinase B), respectively. Compare to crude extract, the yield product of pectinase A and B increased 6.94 and 5.53 times, respectively. The purified pectinase A have optimum temperature at 50 oC and optimun pH at 5.
Colonisation Capacity of Vibrio sp. strain Alg 3.1 and Abn 1.2 in the Gastrointestinal Tractof Gnotobiotic Abalone Faturrahman Faturrahman; Iman Rusmana; Anja Meryandini
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 2 (2020): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.339

Abstract

The use of Vibrio strains as probiotics in Indonesia is very rarely reported. The purpose of this study is to select and develop Vibrio probiotic strains that can increase the rate of abalone growth. The ability of bacterial isolates to colonize the abalone digestive tract is one of the important parameters in the selection of probiotic candidates. The research method consisted of 3 main stages namely modification of Vibrio sp isolates to rifampicin mutants, manufacture of gnotobiotic abalone and colonization capacity test. The treatment given in the colonization capacity test is a type of bacteria that consists of Vibrio sp. line Abn1.2RfR, Alg3.1RfR, combination of Abn1.2RfR + Alg3.1RfR, and control without the addition of Vibrio sp. Each type of bacterial treatment was entered in a 10 liter aquarium capacity containing 10 abalone size ± 3.5 cm. Feed in the form of Gracilaria cake containing Vibrio sp. (final concentration of 107 cfu / mL) was given at the beginning of the study. Abalone is observed for 24, 48 and 72 hours without water replacement. Then count the total number of bacteria and the number of agarolytic bacteria. The results showed that the growth characteristics of wild-type Vibrio with mutant Vibrio were not different.Thus it is expected that the use of the two mutant isolates for in vivo testing has the same effectiveness as the wild type.The capacity of colonization of a single isolate or a combination of rifampicin mutant Vibrio continues to decrease with increasing time of observation. Nevertheless, the percentage of mixed isolates remained higher than that of single isolates during the observation time
Biodiversity of Cellulolytic Bacteria Isolated from the Solid Wastes of Agar Seaweed Processing Industry Ifah Munifah; Titi Candra Sunarti; Hari Eko Irianto; Anja Meryandini
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 10, No 3 (2015): December 2015
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v10i3.129

Abstract

Agar is polysaccharide extracted from the seaweed Gracilaria sp. It is commonly used for food, medical, pharmaceutical and biotechnology industries. The red seaweed Gracilaria verrucosa is the most common material used for the extraction of agar, processed into sheet and powder. A total of 7169 tons solid waste is produced from the agar industry in Indonesia which can further result in 4301.4 tons per year of cellulose. However, solid wastes from agar seaweed processing industry have not been managed and used optimally, and therefore seaweed solid wastes can be used as one of alternative source of cellulose and cellulolytic bacteria. In this research, we reported the isolation of cellulose-producing bacteria from seaweed processing industry wastes using specific media 1 % LIA (Limbah Industri Agar, waste of seaweed processing industry). Sequencing and subsequent phylogenetic analysis of the 16S rRNA genes amplified from the obtained 7 isolates identified them as Serratia marcescens, Chryseobacterium indovlogenes, Bacillus pumilus, Bacillus cereus, Strenatrophomonas maltophila, and Pseudomonas aeruginosa.
EFEK PROBIOTIK Bacillus megaterium PTB 1.4 DAN Pediococcus pentosaceus E2211 TERHADAP REPONS IMUN DAN KELANGSUNGAN HIDUP IKAN LELE (Clarias sp.) SELAMA UJI TANTANG Aeromonas hydrophila Muhammad Subhan Hamka; Anja Meryandini; Widanarni Widanarni; Ardana Kurniaji
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 3 (2021): JFMR VOL 5 NO.3
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.03.9

Abstract

Penyakit bakterial pada kegiatan budidaya ikan sudah menjadi masalah yang sering dihadapi pembudidaya. Salah satu jenis bakteri yang menyebabkan penyakit pada ikan lele (Clarias sp.) adalah bakteri Aeromonas hydrophila. Tujuan penelitian ini untuk mengevaluasi efek pemberian probiotik B. megaterium PTB 1.4 dan P. pentosaceus E2211 terhadap respons imun dan kelangsungan hidup ikan lele selama uji tantang dengan bakteri A. hyrophila. Probiotik yang digunakan adalah kombinasi 0,5% B. megaterium PTB 1.4 dan 0,5%  P. pentosaceus E2211. Pemberian probiotik dilakukan pada hari ke-0 hingga hari ke-30 melalui pakan. Uji tantang dilakukan pada hari ke-30 hingga hari ke-40. Hasil penelitian menunjukkan bahwa pemberian probiotik dapat berpengaruh terhadap respons imun dan kelangsungan hidup ikan lele dalam menekan infeksi A. hydrophila. Total eritrosit, hemoglobin, hematokrit, total leukosit, aktivitas fagositik dan aktivitas lisozim signifikan (P<0,05) teramati meningkat pada hari ke-35 dan menurun pada hari ke-40. Kelangsungan hidup ikan lele berhasil dipertahankan pada 87,62±4,83%. Total bakteri A. hydrophila meningkat pada hari ke-35 dan menurun pada hari ke-40. Pemberian probiotik B. megaterium PTB 1.4 dan P. pentosaceus E2211 pada dosis 0,5% dapat menekan pertumbuhan bakteri A. hydrophila dan meningkatkan status kesehatan ikan lele.
Xylooligosaccharide Production from Tobacco Stalk Xylan using Xylanase Streptomyces sp. BO 3.2 Kholis, Muhammad Nur; Yopi,; Meryandini, Anja
Makara Journal of Science Vol. 19, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tobacco stalk (TS), which is one type of lignocellulosic material, has a xylan content of up to 21.9%. Lignocellulose can be used to produce xylooligosaccharides (XOs). XOs are dietary fibers that have prebiotic activity. This study aimed to produce XOs from tobacco stalk xylan using xylanase from Streptomyces sp. BO 3.2. After the TS was delignified, the xylan was extracted using the alkali method. The delignification process, which used 1% natrium hypoclorite (NaOCl), decreased the lignins from 32.93% to 18.15%. Xylan extraction was conducted using 10% natrium hydoroxide (NaOH); this extraction produced xylan of 15.53% (w/w). The xylanase produced by Streptomyces sp. BO 3.2 on a 0.5% TS medium had 5.92 U/mL of activity, with the optimum condition occurring at pH 5.5 and a temperature of 60 °C. The xylanase was stable, at temperature 4 °C and 30 °C for 120 hours. The xylanase Streptomyces sp. BO 3.2 was capable of hydrolyzing 2% TS xylan and 2% beechwood xylan during the first, third, sixth, and twelfth hours of incubation time; it also produced XOs with degrees of polymerization (DP) of 2.18 and 2.15, respectively. A Thin layer chomatography (TLC) analysis indicated that the hydrolysis products were XOs with the absence of xylose, glucose, and arabinose.
Lactic Acid Bacteria from Apis dorsata Hive Possessed Probiotic and Angiotensin-Converting Enzyme Inhibitor Activity Meryandini, Anja; Karyawati, Amor Tresna; Nuraida, Lilis; Lestari, Yulin
Makara Journal of Science Vol. 24, No. 1
Publisher : UI Scholars Hub

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Abstract

One source of bacteria that has not been widely explored is lactic acid bacteria originating from honeycomb (hive). Timor Island has a wealth of giant honey bees (Apis dorsata). Lactic acid bacteria from the Apis dorsata hive in Timor Island need to be investigated to obtain probiotic candidates with specific functional properties. Lactic acid bacteria were isolated from honeycomb by using de Mann, Rogosa, and Sharpe agar supplemented with 1% of CaCO3. Bacterial isolates that formed clear zones and were Gram-positive and catalase-negative were determined as lactic acid bacteria. The probiotic candidates are isolates that are resistant to bile salts and low pH; susceptible to antibiotics; are able to aggregate, autoaggregate, and coaggregate; and have antibacterial activities. Isolate MC7 was selected as a probiotic candidate and had inhibitory activity against angiotensin-converting enzyme (ACE) with IC50 263,098 ppm. Isolate MC7 showed weak inhibition against ɑ-glucosidase activity. Molecular identification based on 16S rRNA gene showed that MC7 isolate was closely related to Lactobacillus rhamnosus with 100% similarity. Therefore, isolate MC7 was recommended as a probiotic candidate with a functional property as an inhibitor of ACE.
Characterization of α-Glucosidase Inhibitor Streptomyces sp. IPBCC.a.29.1556 Aqueous Extract: An Endophyte of Indonesian Ficus deltoidea Isra Janatiningrum; Yulin Lestari; Dedy Duryadi Solihin; Anja Meryandini
Indonesian Journal of Chemistry Vol 22, No 6 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.72433

Abstract

Filamentous bacteria have been known as actinobacteria which could produce various secondary metabolites, including an α-glucosidase inhibitor. The α-glucosidase inhibitor has been identified to be potentially valuable for the treatment of diabetes mellitus. Endophytic actinobacteria are able to produce bioactive compounds that are similar to their hosts. Indonesian Ficus deltoidea is one of the medicinal plants which has the activity of the α-glucosidase inhibitor. The α-glucosidase inhibitor has been characterized by optimizing compound production, fractionation, analysis using TLC and LC-MS, and identifying inhibitor mechanisms. The α-glucosidase inhibitor substance is present in Streptomyces sp. IPBCC.a.29.1556 aqueous extract. The aqueous extract was separated and fraction 1 had an IC50 value of 58.8 μg/mL, which is better than acarbose (IC50 = 90.4 μg/mL). Kinetic studies revealed that this fraction inhibited the enzyme through a non-competitive mechanism. Chemical profile based on LC-MS, fraction 1 showed the presence of Phenylpropynal, Butyric acid, 2-(2-Ethoxyethoxy)ethanolate, 1,1-Diethoxyethane acetate, N,N-dimethyl-3-oxide-1H-Benzotriazole-1-propanamine, p-coumaric acid, and isoquinolinium which might contribute individually or synergistically to the observed α-glucosidase inhibitor activity. These results suggest that fraction 1 from the aqueous extract of Streptomyces sp. IPBCC.a.29.1556 is the potential source to produce an α-glucosidase inhibitor for the management of postprandial hyperglycemia.
Increase in Polyphenolic Substances from Fermented Robusta Coffee Pulp (Coffea canephora L.) by Using Indigenous Actinomycetes Eka Putri; Yaya Rukayadi; Titi Candra Sunarti; Anja Meryandini
HAYATI Journal of Biosciences Vol. 30 No. 3 (2023): May 2023
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.30.3.457-465

Abstract

The fermentation of the coffee fruit processing into coffee beans leaves the fermented coffee pulp which still contains polyphenol secondary metabolites. This study aimed to analyze the total flavonoid content (TFC) and total phenolic content (TPC) of fermented robusta coffee pulp (Coffea canephora L.) by using indigenous Actinomycetes. The ability of fermented extracts to inhibit free radical DPPH (2,2-diphenyl-1-picrylhydrazyl) also were done. In this study, coffee cherries were fermented in the solid-state fermentation cultivation (SSF) using isolates HJ4.5b, P2b(b).3 and P2b(b).18 which in previous studies were reported to have cellulolytic and xylanolytic activities. Determination of molecular identification base on 16S rRNA gen showed the isolates HJ4.5b and P2b(b).3 have similarities to the genus Streptomycetes, while P2b(b).18 has a homologous base arrangement with a rare actinomycetes genus Micromonospora. Fermentation using P2b(b).3 on the 9th day of fermentation indicated the highest percentage increase in TFC (295.54%) with IC50 18.41 µl/ml and having an antioxidant activity index (AAI) value of 2.14 which was included in the very strong antioxidant activity category.
Selection Of Lactic Acid Bacteria as Starter Culture for Cocoa Fermentation (Theobroma Cacao L.) Hanni Tsaaqifah; Fahrurrozi Fahrurrozi; Anja Meryandini
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3045

Abstract

This research aims to select the potential lactic acid bacteria (LAB) for starter culture for cocoa beans fermentation. The bio-control activity against mycotoxigenic fungi were also evaluated. The indigenous LAB was analized from Sukabumi cocoa beans fermentation by spontaneous method for four days (96 hours). The preliminary screening of LAB were observed by clear zone forming, morphology characterization and catalase activity. The LAB were screened for their ability to resist acidity, ethanol, and heat, and their ability to produce high acid and antifungal. The antifungal capability was antagonistic assays to Aspergillus ochraceus IPBCC 88.033 on Potato Dextrose Agar (PDA) medium.  The result showed that the selected acid bacteria isolate, H 2.34, were antifungal-producing strains, and resist acidity, ethanol and heat, which was suitable property for starter culture and biopreservation agent. The study demonstrated the selection of local Indonesian LAB from Sukabumi fermented cocoa bean to observe the potential of isolate as a starter culture and biopreservation agent
Co-Authors . Hamim . KURRATAA’YUN . YOPI . YOPI ., Yopi ., Yopi A, Gading Wilda A, Gading Wilda Abd. Rasyid Syamsuri Abdjad Asih Nawangsih Adawiah, Adilah Ade Andriani ADE ANDRIANI Ade Irma Ahmad Thontowi Aisyah, Nadira Alfred Michael Alina Akhdiya ALINA AKHDIYA AMOR TRESNA KARYAWATI Amor Tresna Karyawati, Amor Tresna Andika Susantri ANGGRAINI PUTRI UTAMI Anggreandari, Rizky Antonius Suwanto Anwar, Irvan Apon Zaenal Mustopa APRILIA NAOMI Ardana Kurniaji Ariandi Arina Amalia Putri Aris Tri Wahyudi Ariyanto, Yogy Satria Armita, Dea Asrianti Basri Atit Kanti Azizah Hikma Safitri Bambang Prasetya Bambang Prasetya Basri, Asrianti Basri, Asrianti Bedah Rupaedah Besty Maranatha CAHYA PRIHATNA Candra Sunarti , Titi Cocok Ana Maryani Berutu Cynthia Rizka Riani DAROJATUL ULYA Dede Heri Yuli Yanto Deden Saprudin Dedy Duryadi Solihin DEDY DURYADI SOLIHIN Deford Cristy Birahy DERI YURATMOKO DEWI APRI ASTUTI Dewi Asnita Dewi, Fitria Diana, Milsa Solva DIMAS ANDRIANTO DINI NURDIANI Dwi Ambarawati Dwi Andreas Santosa DWI SURYANTO DWI SURYANTO Dyah Iswantini Eka Putri EKA RURIANI Elly Rosyidah Engelhaupt, Martin Esti Utarti FAHRRUROZI FAHRRUROZI FAHRURROZI FAHRURROZI Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi Fathiah, Muhammad Fadhil Fathin Hamida FATURRAHMAN FATURRAHMAN Faturrahman Faturrahman Ferry Mutia FERY MUTIA Fitri, Ainissya Fitria Dewi Glisina Dwinoor Rembulan GRISELDA HERMAN NATADIPUTRI Hairani, Atikah Hamim Hamim Hamtini - Hamtini Hanni Tsaaqifah Hari Eko Irianto Hartono, Faisal Diniamal Hasrul Satria Hasrul Satria Nur Hasrul Satria, Hasrul I Komang Gede Wiryawan Ici Dianita Ifah Munifah Ika Rahmatul Layly Iman Rusmana Inayah, Mazidah Noer IRA ERDIANDINI, IRA IRFAN ANWAR FAUZAN IS HELIANTI ISRA JANATININGRUM Isra Janatiningrum It Jamilah La Ode Wahidin LAKSMI AMBARSARI Lenni Fitri Lenni Fitri Lilis Nuraida Lily Nathalia Loli Natalia Lukman, Zulfiqar M. EDY SOFIYANTO Maggy T Suhartono Maggy T Suhartono Maggy Thenawidjaja Suhartono Maggy Thenawidjaja Suhartono Maggy Thenawidjaya Suhartono Mahsunah, Anis Herliyati Malikah Azizah Manguntungi, Baso Maranatha, Besty Mareistia Fassah, Dilla Maria Sugiharti Marini Wijayanti MARINI WIJAYANTI MARTIN ENGELHAUPT Mernawati, Mernawati Muhammad Nur Kholis, Muhammad Nur Muhammad Subhan Hamka MUHAMMAD ZAIRIN JUNIOR MUNTI YUHANA NANIK RAHMANI Nanik Rahmani Nanik Rahmani Naswandi Nur Natalia, Loli Nathalia, Lily NI WAYAN SRI AGUSTINI Niken Financia Gusmawati NISA RACHMANIA MUBARIK Nisfatin Shofiana NUNUK WIDHYASTUTI Nunuk Widhyastuti Nur Richana Nur, Hasrul Satria Nurfadhilla Rahmadhani Nurhasna, Aprilia Prima Agung Prihandono Puspitasari, Dian Japany RAHAYU WULAN Rahayu Wulan Rahayu Wulan RAMADHAN, ZULFA AULIA Rika Indri Astuti RIKA RAFFIUDIN Rismawati . Rizky Anggreandari RONI RIDWAN RONI RIDWAN Rosyidah, Elly RUSLI FIDRIYANTO SAFITRI NURLAELA SHANTI RATNAKOMALA Shanti Ratnakomala Sidiq, Muhammad Raffel SINTA AGUSTINA SINTA AGUSTINA SINTA AGUSTINA Sipriyadi Sipriyadi Sipriyadi Sitti Rahbiah Akram SRI ESTUNINGSIH Sri Estuningsih Sri Koerniati Sri Listiyowati Sri Suharti Stanislaus Aditya Agung SUHARSONO Sumarni Nompo Sunarti, Titi Suyono, Meisy Nawang Titi Candra Sunarti Trio Hendarwin TRIO HENDARWIN TRIO HENDARWIN Tryanisa Ridla Amalia Turnip, Enita Romasni Umi Fatmawati UMI FATMAWATI Vestika Iskawati Wahidul Hijah Wahyu Afrilasari Wahyu Widosari WENANG MAHARSIWI WIDANARNI WIDANARNI Widosari, Wahyu WILFADRI PUTRA JONESTI WULAN, RAHAYU Yantyati Widyastuti Yantyati Widyastuti YAYA RUKAYADI Yaya Rukayadi YAYA RUKAYADI Yopi - YOPI YOPI Yopi Yopi Yopi Yopi Yopi, YULIANA, META YULIN LESTARI Zahrani, Siti Mutia