Garuda - Garba Rujukan Digital

Pengaruh Iradiasi Sinar Gamma TerhadapInduksi Kalus dan Seleksi Tingkat Toleransi Padi (Oryza sativa L.) terhadap Cekaman Salinitas secara In-Vitro Lisdyayanti, Novita Dwi Lisdyayanti Dwi; Anwar, Syaiful; Darmawati, Adriani
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.125 KB)

The use of saline for rice cultivation needs to be support bytolerant rice varieties in saline land. The rice variety can be obtained through plant breeding programs, one of which is by physical mutation methods using gamma rays.. Physical mutation is random mutation, so we need to do selection after that treatment. Selection to get rice mutants that are tolerant of salinity stress can be done by planting on culture media that have been modified witt addition of NaCl.The perpose of this research is to examine the effect of gamma rays irradiation doses on rice callus induction and its tolerance level in saline media. This research used 2 designs, a monofactor complete randomize design at callus induction stage with a faktor in the form of gamma rays irradiation doses (0, 100, and 200 Gy) and factorial complete randomize designat the regeneration stage with a factor in form of gamma rays irradiation doses (0, 100 and 200 Gy) and the second factor is NaCl concentration (0 and 50 mM). The steps of this research were irradiation of Ciherang variety rice seed, making media for tissue culture, sterilization of rice seed explants, initiation of explants in callus induction media, subculture to regenerated media that had been modified with the addition of NaCl according to treatment, and then observation. The results showed that gamma rays irradiation could inhibit the growth of callus diameter and reduce the grofth of callus from explants of ciherang variety. All callus subcultured into regeneration media are unable to formbuds and turn black or die.Keywords: Salinity Stress, Irradiation and Rice

Uji Aktivitas Antibakteri Ekstrak Biji Kelor (Moringa oleifera L.) Terhadap Pertumbuhan Bakteri Staphylococcus aureus dan Bakteri Escherichia coli Wigunarti, Anggia Hesti; Pujiyanto, Sri; Suprihadi, Agung
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.353 KB)

Moringa oleifera L. or moringa is one of the plants that can be used as a traditional herbal medicine because it has antimicrobial, anti-tumor, anti-pyretic, anti-oxidant and anti-inflammatory properties. The purpose of this study was to determine the antimicrobial activity of Moringa seed extract against Staphylococcus aureus and Escherichia coli. Extraction of active compounds from moringa seeds was carried out by maceration method. The maceration process with two solvents, polar solvent using 96% ethanol, and second with non-polar solvents using n-hexane. The macerate results are then evaporated in 60oC temperature over 1 hour . The test is done by diffusion to use a 6 mm paperdisk with two test of bacteria Staphylococcus aureus and Escherichia coli. The concentration of extract solution to be tested are 75%, 50% and 25%. The positive control was using 0,1 mg / mL chloramphenicol and negative control using DMSO. Experimental design using a completely randomized design and analyzed using the Analysis of Variance (ANOVA) and if the data obtained showed significantly different results at the 5% test level then continued with the Duncan test to determine differences between the treatments. From the results of testing the antimicrobial activity of Moringa seed extract in 96% polar ethanol solvent showed the presence of antibacterial activity against both of the test bacteria Staphylococcus aureus and Escherichia coli. The highest antibacterial activity occurs at a concentration of 75%. The diameter of the inhibitory zone of Staphylococcus aureus and Escherichia coli was 14,75 and 3,50. Non-polar n-hexane solvents showed no antibacterial activity in the two test bacteria Staphylococcus aureus and Escherichia coli. Key words:Moringa oleifera L., extracts, antibacterial, S.aureus, E.coli

Eksplorasi Jamur Proteolitik Alkali Termotoleran Dari Tanah Kapur Sukolilo Barat Madura Rukmi, Isworo; Lunggani, Arina Tri
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.114 KB)

Peran mikroorganisme di dalam berbagai industri telah sangat dikenal di dunia. Berbagai jenis galur mikroorganisme industri merupakan galur-galur unggul dalam menghasilkan berbagai ensim, terutama mikroorganisme yang tergolong kelompok ektremofil.Indonesia merupakan negara tropis yang menjadi salah satu sumber mikroorganisme ekstremofil yang dapatmemenuhi kebutuhan industri, akan ensim yang bersifat alkalis dan termotoleran. Protease alkalis merupakan salah satu ensim yang penting dalam industri. Penelitian ini bertujuan untuk mengeksplorasi jamur alkalofil termotoleran penghasil protease alkalis dari tanah kapur Desa Sukolilo Barat Madura. Isolasi jamur tanah indigenous dilakukan secara selektif menggunakan medium PDA yang mengandung 2% skim milk pada pH 8. Isolat jamur proteolitik dipelihara dalam medium PDA miring.Produksi ensim dilakukan dengan menggunakan medium Czapeks Dox modifikasi yang mengandung 2% casein dengan pH 8, diikubasi pada 120 rpm, selama 7 hari. Diperoleh 5 isolat jamur indigenous alkalofil termotoleran proteolitik dari genus Aspergillus, yaituA. tamarii PAM10A, A. awamoriPAM10D, A. nigerPAM12A, A.foetidus PAM18A, dan A.flavus PAM25A dengan aktivitas spesifik ekstrak kasar protease alkalis berturut-turut sebesar 0,1585 U/mg, 0,1715 U/mg, 0,1762 U/mg, 0,1640 U/mg dan 0,1747 U/mg.. Kata Kunci: kapur, jamur, protease, alkalofilk

Isolasi Bakteri Endofit dari Tanaman Bangle (Zingiber cassumunar Roxb.) dan Uji Aktivitas Antibakterinya terhadap Bakteri Penyebab Penyakit Kulit Staphylococcus epidermidis dan Pseudomonas aeruginosa Wulansari, Anggistina; Aqlinia, Maulida; Wijanarka, W; Raharja, Budi
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.673 KB)

Data fromthe Indonesian Health Profile 2010 showed that skin disease was ranked third of the 10 most common diseases in outpatients in hospitals Indonesia. Staphylococcus epidermidisand Pseudomonas aeruginosaare pathogenic bacteria that can cause skin diseases. The bangle plant (Zingiber cassumunar Roxb.) is one of the traditional medicinal plants that is widely used to treat skin diseases and has side effects that are safer than chemical drugs. Endophytic bacteria can produce the same antibacterial bioactive compounds as their host plants, so there is no need to cut down the original plants to be taken as simplicia. The purpose of this study was to isolate endophytic bacteria from bangle plants and find out their antibacterial activity in inhibiting the growth of bacterial causes of Staphylococcus epidermidis and Pseudomonas aeruginosa. The method used to test antibacterial activity is the diffusion method to use paperdisk. The isolation results obtained 16 bacterial isolates from the rhizomes, roots, stems and leaves. The screening results obtained 3 potential endophytic bacterial isolates namely Da_2 isolates from the leaf part, Ba_2 from the stem part and Ri_2 from the rhizome part. The antibacterial activity of supernatant Ba_2 isolates showed the best effect compared to the supernatant of Da_2 and Ri_2 isolates. The diameter of the largest inhibition zone in the Ba_2 isolate against S. epidemidis of 26 mm which can be categorized very strongly where as in isolates of endophytic bacteria Ba_2 against P. aeruginosa of 13,99 mm which is categorized as strong.Keywords: Antibacteria, Dermatitis, Endophyte,Zingiber cassumunar

Skrining Aktivitas Antibakteri dan Identifikasi Molekuler Berdasarkan Gen 16S rRNA Isolat Aktinomiset Asal Pulau Enggano dan Bali Nadina, Rahmah Qisti; Pujiyanto, Sri; Wijanarka, W; Fahrurrozi, Fahrurrozi
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.742 KB)

Actinomycetes are a Gram positive bacteria who plays an important role in pharmaceutical industry because of its ability to produce an antibacterial compound. This study aims to select actynomycetes isolates that has antibacterial activity and to identify the isolates based on 16S rRNA gene squence. The actinomycetes isolates were inoculated using ISP-2 medium and cultured in SYP (starch, yeast, peptone) media for 13 days. The cultures were extracted using etyl acetate solvent and antibacterial activity was tested against Bacillus subtilis and Escherichia coliusing agar diffusion method.Positive isolates were identified based on 16S rRNA gene sequence. The 16S rRNA gene from positive isolates was sequenced and analyzed with computerized help and was deposited at NCBI. The antibacterial activity test revealed 5 from 22 isolates had an antebacterial activity shown by the clear zone around the whatman filter paper on both tested bacteria. The identification revealed these five isolates were identified asStreptomyces mutabilis, Streptomyces sp, and Streptomyces griseorubens. This study shows these isolates from Enggano and Bali Island are potential as antibacteri producer. Keywords : actynomycetes, antibacterial activity, 16S rRNA

Isolasi Khamir Fermentatif dari Batang Tanaman Tebu (Saccharum officinarum. L) dan Hasil Identifikasinya Berdasarkan Sekuens Internal Transcribed Spacer Anggraini, Ika Anggraini; Ferniah, Rejeki Siti; Kusdiyantini, Endang
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.023 KB)

Yeast is a single-celled fungus that acts as epiphytes, endophytes or parasites. Yeast is divided into fermentative yeast and oxidative yeast. Fermentative yeast can produce primary and secondary metabolites. The role of fermentative yeast is widely used in the food industry, health and energy, so necessary to be explore fermentative yeast from sugarcane stems. The purpose of this study was to isolate fermentative yeast from sugarcane stems and identify molecular yeast based on the Internal Transcribed Spacer sequences (ITS). Isolation of epiphytic and endophytic yeast was carried out by spread plate of water soak sugarcane and sugar cane juice. Yeast isolation using 2 media, PDA and YGP with chloramphenicol. Morphological characterization was carried out by observing macroscopic and microscopic characteristics. Biochemical characterization was carried out by carbohydrate fermentation test and 50% glucose media growth test. Selected isolates were molecularly identified using Internal Transcribed Spacer (ITS) sequences. Primers used are ITS 1 and ITS 4. Phylogenetic analysis using Neighbor Joining from MEGA-6 program. The results of isolation obtained 7 yeast isolates characterized morphologically and biochemically. The based result of morphology and biochemical characterization were found 1 selected isolate with name Ed 1B. Selected yeast isolate have characteristics are round colonies, creamy white, shiny surface, raised elevation, wavy edges, ovoid cell shape, cell diameter 4,74µm, budding, glucose fermentation and sucrose fermentation, but not for lactose and grow well of 50% glucose media. The results of the Basic Alignment Search Tools (BLAST) are Ed 1B isolates had 99% homology with Kodamaea ohmeri species. Key Words : Sugarcane (Saccharum officinarum. L.), Yeast, Molecular Identification

Isolasi dan Karakterisasi secara Morfologi dan Biokimia Khamir dari Limbah Kulit Nanas Madu (Ananas comosus L.) untuk Produksi Bioetanol Akbar, Galih Pertiwi; Kusdiyantini, Endang .; Wijanarka, W .
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.58 KB)

Yeast is a group of microorganisms that are easily found in fermented products, soil, water, plant tissues, leaves, flowers and fruits. Bioethanol is one of the alternative energy produced by yeast through fermentation. This study aims to isolate and characterize yeast morphologically and biochemically yeast from honey pineapple skin waste for bioethanol production. Isolation was carried out using PDAY + chloramphenicol media. Morphological characterization were carried out by observing colony morphology, cell and yeast asexual reproduction. Biochemical characterization included carbon and nitrogen assimilation, urea hydrolysis test, protein hydrolysis test, glucose acid production test, high glucose tolerance test, ethanol tolerance test and production and analysis of fermented bioethanol levels by yeast isolates. From the isolation process found 6 yeast isolates, where isolates Ep-1 and Ep-2 are similar to Wickerhamia sp., Ep-3 and Ed-3 similar to Zygosaccharomyces sp. and isolates Ed-1 and Ed-2 are similar to Saccharomyces sp.Characteristics possessed by yeast isolates showed the ability to assimilate several sources of carbon and ammonium sulfate; able to hydrolyze proteins; some are able to produce acid; cannot hydrolyze urea; tolerant to glucose concentrations of 40%, 50% and 60%; tolerant to ethanol 5%, 10% and 15%; and able to produce bioethanol.Ep-1 isolates are known to have the most potential for ethanol production because they are tolerant to 60% glucose concentration and 15% ethanol and the level of bioethanol produced is 12.00%. Key words : yeast, honey pineapple skin waste, characterization, bioethanol

Deteksi Gen DXS dan Penentuan Jalur Biosintesis Karotenoid pada Chlorella pyrenoidosa Monalita, Ramadhebi; Kusumaningrum, Hermin; Budiharjo, Anto
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

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

Sintesis karotenoid alami belum pernah melebihi produk sintetik pada skala komersial. Kurangnya pemahaman mengenai aspek mikrobiologis dan ekofisiologis isolat penghasil karotenoid menyebabkan terjadinya kesalahan penamaan spesies. Satu isolat lokal alga hijau yang digunakan sebagai pakan alami sumber karotenoid dalam industri makanan yaitu Chlorella pyrenoidosa. Akumulasi karotenoid jalur non- MVA pada alga hijau ditentukan oleh enzim D-1-deoksixilulosa 5-fosfat sintase, yang disandi oleh gen D- 1-deoksixilulosa 5-fosfat sintase (DXS). Tujuan utama penelitian ini adalah untuk mendeteksi gen DXS sebagai penyandi enzim kunci biosintesis karotenoid pada C. pyrenoidosa apakah juga mengikuti jalur non- MVA untuk biosintesis karotenoidnya atau tidak. Metode karakterisasi morfologis dan ekofisiologis dilakukan berdasarkan pengamatan secara berkala dan deteksi gen DXS menggunakan panduan Kuzuyama (2000). Hasil analisis keserupaan gen DXS C. pyrenoidosa pada daerah lestari memperlihatkan dapat mendeteksi parsial gen DXS dari Chlamydomonas reinhardtii. Tidak adanya hambatan pertumbuhan pada C. pyrenoidosa dengan lovastatin menunjukkan jalur non-MVA adalah jalur yang digunakan dalam biosintesis karotenoidnya.

POTENSI RIZOBAKTERI PEMBENTUK ENDOSPORA DARI TANAMAN PADI SEBAGAI BIOKONTROL FITOPATOGEN Xanthomonas oryzae Sumarno, Maerani; Budiharjo, Anto; Pujiyanto, Sri
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

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

Xanthomonas oryzae adalah fitopatogen penyebab hawar daun bakteri yang mengakibatkan penurunan hasil pertanian rata-rata mencapai 20-70 % di wilayah Asia. Gejala hawar daun bakteri ditandai dengan terbentuknya garis pada helaian daun yang berubah menjadi kuning, kemudian putih hingga menyebabkan tanaman menjadi layu dan mati. Rizobakteri pembentuk endospora merupakan mikroba tanah yang berpotensi sebagai biokontrol dalam menghambat pertumbuhan fitopatogen. Tujuan penelitian ini adalah diperolehnya isolat rizobakteri pembentuk endospora dari tanaman padi sebagai biokontrol terhadap fitopatogen X. oryzae. Metode yang digunakan meliputi, isolasi, uji aktivitas antibakteri, identifikasi secara molekuler, dan karakterisasi secara biokimia. Rizobakteri pembentuk endospora yang diperoleh dari hasil isolasi tanaman padi sebanyak dua puluh isolat. Isolat P-10 merupakan isolat yang mempunyai daya hambat terbesar terhadap X. oryzae dengan zona hambat sebesar 18,89 mm. Hasil identifikasi molekuler menggunakan gen 16S rRNA menunjukkan isolat P-10 memiliki homologi 98% dengan Bacillus pumilus. Karakterisasi biokimia menunjukkan isolat P-10 berbentuk batang dengan letak endospora di tengah, gram positif, positif menghasilkan katalase, bersifat motil, negatif dalam menghidrolisis pati, tidak membentuk gas pada glukosa, karakteristik tersebut sesuai dengan karakter B. pumilus.

EKSTRAKSI DAN UJI STABILITAS ZAT WARNA DAUN JAMBU BIJI (Psidium guajava L.) Pardede, Lasria; Kusdiyantini, Endang; Budiharjo, Anto
Berkala Bioteknologi Vol. 2 No. 2 November 2019
Publisher : Berkala Bioteknologi

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

Daun jambu biji dikenal sebagai obat tradisonal untuk mengobati berbagai macam penyakit, seperti diare, demam berdarah, dll. Seiring perkembangan teknologi daun jambu biji kini digunakan sebagai penyumbang warna pada tekstil. Penelitian ini bertujuan untuk mengekstraksi pada pelarut aquades dan etanol serta menguji stabilitas warna daun jambu biji terhadap pengaruh suhu penyimpanan, rentan waktu penambahan oksidator dan pH. Daun diekstrak dengan direndam selama 24 jam pada pelarut aquades yang telah dipanaskan terlebih dahulu pada suhu 30ºC, 50ºC, 70ºC dan 90ºC dan etanol dengan konsentrasi 20%, 40%, 60%, 80% dan 96%. Pengukuran absorbansi ekstrak daun jambu biji menggunakan spektrofotometri pada panjang gelombang 525 nm. Hasil menunjukkan bahwa ekstrak daun jambu biji mempunyai nilai absorbansi optimum pada pelarut aquades pada suhu 90ºC dan etanol 20%. Uji stabilitas dilakukan dengan perlakuan pengaruh terhadap suhu penyimpanan, penambahan oksidator dan pH. Uji stabilitas ekstrak daun jambu biji menunjukkan bahwa zat warna daun jambu biji yang diekstrak stabil pada suhu penyimpanan 9°C, penambahan oksidator dengan waktu yang singkat (pada jam ke 3) dan tahan pada kondisi pH basa (pH 9).

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota semarang,

Jawa tengah

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota semarang, Jawa tengah INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota semarang,

Jawa tengah

INDONESIA