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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

Author-ID : 229368

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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Sequences Analysis of a Gene Encoding Extracellular Xylanase in Streptomyces costaricanus 45I-3 S. Sipriyadi; Aris Tri Wahyudi; Maggy Thenawidjaja Suhartono; Anja Meryandini
Indonesian Journal of Biotechnology Vol 20, No 1 (2015)
Publisher : Universitas Gadjah Mada

Streptomyces costaricanus 45I-3 is a bacterial strain belongs to actinomycetes group isolated from peat soil. Thebacterium is known to produce extracellular xylanase. The aims of this study were to analyze DNA sequence andsub-clone gene involved in the synthesis of extracellular xylanase. Complete DNA sequence predicted to encodexylanase genes was isolated from bacterial genome using Inverse Polymerase Chain Reaction (I-PCR). Total DNAsequence of 1664 bp in size obtained from I-PCR consisted of two open reading frames (ORF) in opposite direction.ORF1 was 1029 bp and ORF2 (partial sequence) was 309 bp. Analysis sequence using BlastX indicated that ORF1was homologous with xylanase bacterium enrichment culture clone Xyl8B8 (GenBank accession No. AFH35005.1),i.e. 95% in identity and 99% in similarity. In addition, ORF2 was homologous with glyoxalase bacterium enrichmentculture clone Xyl8B8 (GenBank accession No. AFH35007.1), i.e. 95% in identity and 98% in similarity. Analysis ofamino acid sequence revealed that ORF1 consisted of 2 domains, i.e. glyco-hydrolase 11 (GH11) and CarbohydrateBinding Type 2 (CBM2). Active site was found at 130th amino acid on GH11 domain. Visualization of 3-dimensionstructure showed that 1029 bp fragment is of 19 areas.

Isolation of actinomycetes from maize rhizosphere from Kupang, East Nusa Tenggara Province, and evaluation of their antibacterial, antifungal, and extracellular enzyme activity Umi Fatmawati; Yulin Lestari; Anja Meryandini; Abdjad Asih Nawangsih; Aris Tri Wahyudi
Indonesian Journal of Biotechnology Vol 23, No 1 (2018)
Publisher : Universitas Gadjah Mada

Actinomycetes are the one of the components of the rhizospheric microbial population and useful for producing secondary metabolites such as lytic enzymes, antibiotics, and antifungal. The aim of the study was to isolate the actinomycetes from maize rhizosphere collected from Kupang, East Nusa Tenggara. The screening was focused on the actinomycetes that showed the ability to produce antibacterial, antifungal, and extracellular enzymes such as amylase, cellulase, and protease. The actinomycetes were isolated using Humic-Acid Vitamin B (HV) agar media. The antagonistic assay was tested against Escherichia coli, Staphylococcus aureus, Sclerotium rolfsii and Fusarium oxysporum. Isolate JKP-8 was an isolate that showed the highest activity in inhibiting the growth of E. coli and S. aureus bacteria. Isolate JKP-5 showed the highest activity in inhibiting the growth of F.oxysporum. There were no actinomycetes isolates that showed an ability to inhibit the growth of S. rolfsii fungus based on dual culture assay. JKP-3 and JKP-4 isolates exhibited the highest ability to hydrolyze amylum, while JKP-5 and JKP-8 isolates exhibited the highest ability to hydrolyze CMC. The results of the amplification of 16S rRNA gene in selected potential isolates JKP 5 and JKP 8 indicated that both isolates belong to the genus Streptomyces.

Ethanol Productivity of Ethanol-Tolerant Mutant Strain Pichia kudriavzevii R-T3 in Monoculture and Co-culture Fermentation with Saccharomyces cerevisiae Nurfadhilla Rahmadhani; Rika Indri Astuti; Anja Meryandini
HAYATI Journal of Biosciences Vol. 29 No. 4 (2022): July 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.4.435-444

We previously developed ethanol-tolerant P. kudriavzevii R-T3 (P.ku R-T3) mutant from its parental strain P.ku R-WT by evolutionary adaptation method. Hence, we further analyze the ethanol productivity of the particular isolates in a monoculture and co-culture with industrial yeast Saccharomyces cerevisiae BY4741 at various inoculum ratio. Based on the spot assay, R3 mutant yeast showed better cell viability under 10% ethanol stress than the wild type, potentially due to the high expression level of PKINO1 gene involved in the synthesis of inositol. In the monoculture fermentation, S. cerevisiae could use glucose, while P.ku could use mixed glucose and xylose as carbon sources for ethanol fermentation. P.ku R-T3 performed the most potential ethanol kinetics parameters, including the highest ethanol production (10.10 g/L), ethanol productivity (0.21 g/L/h), and fermentation efficiency (84.36%). Upscaling the inoculum of P.ku R-T3 by ten times resulted in 10% higher ethanol production. However, the highest substrate utilization rate did not indicate an increase in ethanol production. Indeed, P.ku R-T3 showed a low mixed substrate use but produced higher ethanol production than S. cerevisiae, as much as 21-31%, depending on the initial inoculum. Interestingly, the co-culture of P.ku R-T3 and BY4741 did not substantially produce higher ethanol production than the monoculture technique. About 30% reduction of ethanol production was found by co-culturing BY4741 with P.ku R-T3 than P.ku R-T3 alone. Taken together, the monoculture fermentation of P.ku R-T3 remains the promising fermentation technique than that of the co-culture with industrial yeast S. cerevisiae.

Isolasi Bakteri Mananolitik dan Karakterisasi Mananasenya Anja Meryandini; Rizky Anggreandari; Nisa Rachmania
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 13, No 2 (2008): June 2008
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v13i2.2675

Isolate RA05 has the highest mannanolytic index and mannanase activity which isolated from copra soil waste from Pasaman, West Sumatra. The best growth condition that produces best mannanase activity of isolate RA05 was achieved from 500 ml flask containing 100 ml medium with 100 rpm agitation. Isolate RA05 showed its mannanase activity in medium containing Locust Bean Gum and coconut meal but not in medium containing kolang kaling. This mannanase had the highest activity on medium containing 2% of coconut meal with optimum condition temperatur 800C and pH 2.5. Adding of 5 mM MnCl2 on the crude enzym increased the activity near 300%. Other kation (Ca2+, Zn2+, Cu2+, Mg2+, Fe2+ dan Co2+) did not display great effect on the activity.

Karakterisasi Protease Ekstraseluler Clostridium spp. T11-3 Loli Natalia; Lily Nathalia; Anja Meryandini
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 1 (2006): February 2006
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v11i1.2822

Protease is one of the leather commercial enzymes which is widely used such in food processing, medicine and leather industry. Clostridium sp T11-3 was isolated from Tiu Jeruk River in Nusa Tenggara Barat. Sequence analysis of 16S rRNA indicated that Clostridium spp T11-3 was closely related to C. bifermentans. This isolate produced maximum protease activity after 18 hours of cultivation in liquid media. Protease of Clostridium spp 11-3 displayed maximum activity at pH 5 and 60oC with casein as substrate. In the presence of 1 mM divalent ion Mg2+ the enzym activity increased to 141 %, while others ion divalent (Ca2+, Zn2+, Cu2+, Fe2+, and Co2+) inhibited protease activity.

Seleksi Bakteri Asam Laktat dan Pemanfaatannya Sebagai Starter Kering Menggunakan Matriks Tapioka Asam Ira Erdiandini; Titi Candra Sunarti; Anja Meryandini
Jurnal Sumberdaya Hayati Vol. 1 No. 1 (2015)
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.1.1.26-33

The development of industrial fermentation food could not separate with the availability of culture starter that suffice to support its production. Dried starter can be an option to use in fermentation industry because it can be stored for longer time without rejuvenation. However, in the process of production of dried starter needs the matrix to maintain cell viability, economically and availability of raw material. This research was conducted to use selected dried starter of indigenous lactic acid bacteria by using sour cassava starch matrix. Eleven local isolates lactic acid bacteria isolates from spontaneous fermentation of carbohydrates commodity were selected based on their acid production capabilities and antibiotics susceptibilities. Isolate of E 1222 showed the best result and was identified as Pediococcus pentosaceus. The isolate was encapsulated with sour cassava starch matrix for making dried starter by using freeze dryer and spray dryer. Freeze dried starter culture could maintained the cell viability higher than spray dried starter culture i.e 10.34 log CFU/g and 8.91 log CFU/g, respectively. Finally, freeze dried starter culture could maintain the percentage of cell viability until 89.38% during four-weeks storage at 4 oC.

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

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.

Formula Media Pertumbuhan Bakteri Asam Laktat Pediococcus pentosaceus Menggunakan Substrat Whey Tahu SAFITRI NURLAELA; TITI CANDRA SUNARTI; ANJA MERYANDINI
Jurnal Sumberdaya Hayati Vol. 2 No. 2 (2016)
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.2.2.31-38

The lactic acid bacteria (LAB) and its lactic acid are commonly used to preserve the food and to extend the food’s shelf life. MRS media is a growth medium for LAB, but it is not feasible for industrial scale application. Cheaper substrate from agriculture products is therefore required, such as tofu whey, which is potential to be used as LAB medium. Tofu whey contains important components to support the LAB growth, but it needs C source (5% of glucose) and nitrogen source (1% ammonium sulphate or urea) supplementations. This study aimed to investigate the influence of N-source to Pediococcus pentosaceus growth and its capability in producing acid compounds. The result showed that addition of urea increased pH fermentation, contrarily to that ammonium sulphate supplementation. The highest bacterial growth rate (μmaks) was observed on media with urea (0.43 jam-1), while the highest acid production was occured on media with ammonium sulphate (9.13 mg/mL). Supplementation of ammonium sulphate and urea on tofu whey highly supported the growth of bacterial population for about 6.5 × 108 CFU/mL and 5.4 × 108 CFU/ mL, respectively, but still lower compared to MRS media (2.03 × 1010 CFU/mL).

Pemanfaatan Bakteri Selulolitik dan Xilanolitik yang Potensial untuk Dekomposisi Jerami Padi Hasrul Satria Nur; Anja Meryandini; . Hamim
JOURNAL OF TROPICAL SOILS Vol 14, No 1: January 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i1.71-80

There were 3 prospective isolates of cellulolytic bacteria resulted from the total of 31 isolates we found, i.e. C4-4, C5-1, and C11-1. Four combinations of bacteria including C4-4 + Xilanolytic (A), C5-1 + Xilanolytic (B), C11-1 + Xilanolytic (C), 45I-3 + 234P-16 (D), and control (E, without bacteria) were applied as inoculant of rice straw decomposition. In the incubation period the pH-H2O value of C4-4 + Xilanolytic (A) and C5-1 + Xilanolytic (B) was relatively stable. The C/N ratio of all treatments decreased after 3 weeks of incubation. The C/N ratio value of A, B, C, D and E treatments were 22.48, 23.43, 27.49, 26.82, and 29.53 respectively. Decomposition rate all of combination treatments were faster than the control. The content of macro-micro nutrient of A, B, C, and D treatments increased in the end of measurement, while the control didn’t. The physical characteristic of substrate after incubation was better in A and B treatments that others. The result indicated that the combination of C4-4 + Xilanolytic (A) and C5-1 + Xilanolytic (B) bacteria were the best combination for decomposition of rice straw.

Screening of Proteolytic Enzymes of Streptomyces sp. Local Strain and Their Characterization DERI YURATMOKO; NISA RACHMANIA MUBARIK; ANJA MERYANDINI
Microbiology Indonesia Vol. 1 No. 2 (2007): August 2007
Publisher : Indonesian Society for microbiology

Protease of two Streptomyces sp. strain were chosen for characterization because of the large clear zone surrounding the colony in nutrient agar media containing 1% (w/v) skim milk. Extracellular protease from the two isolates SLW 8-1 and 45I-3 were characterized following incubation of the isolate in Nutrient Broth media containing skim milk or chicken feather (1%). The optimum activity of the protease SLW 8-1 was at pH 9 and 80 ºC, whereas that of the keratinase was at pH 6.5 and 70 +C. Protease of strain 45I-3 showed its optimum activity at pH 7.5 and 50 ºC whereas the keratinase was at pH 8.5 and 80 ºC.

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

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