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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 2,125 Documents
 203   204   205   206   207 
COMPOSITION AND QUANTIFICATION OF FATTY ACIDS PRODUCED BY Xylaria sp. DAP KRI-5 Ahmad Fathoni; Muhammad Ilyas; Praptiwi Praptiwi; Andi Saptaji Kamal; Lukman Hafid; Lina Marlina; Andria Agusta
BERITA BIOLOGI Vol 20, No 1 (2021)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v20i1.4063

Abstract

Asam lemak mempunyai nilai guna komersial sebagai suplemen makanan, produk farmasi dan sumber energi terbarukan. Sumber asam lemak sebagian berasal dari hewan, tumbuhan, dan jamur endofit. Penelitian ini bertujuan untuk menganalisis kandungan dan komposisi asam lemak dari jamur endofit  Xylaria sp. DAP KRI-5. Asam lemak didapatkan dari fraksi n-heksana yang dihasilkan dari partisi ekstrak etil asetat Xylaria sp. DAP KRI-5 dengan n-heksana: metanol (1:1). Turunan FAME (Fatty acid methyl ester) dari asam lemak didentifikasi dengan menggunakan GC-MS. Kandungan asam lemak dari fraksi n-heksana Xylaria sp. DAP KRI-5 adalah 26,39% (b/b) ekstrak kering. Analisis kuantitatif dilakukan menggunakan GC-MS. Komposisi dan kuantifikasi asam lemak Xylaria sp. DAP KRI-5 adalah asam linoleat (41,177%; 112,24 mg/L); asam palmitat (25,114%; 68,45 mg/L); asam oleat (14.198%; 38,70 mg/L);  asam stearat (6,575%; 17,2 mg/mL); dan asam palmitoleat 2,165%; 5,90 mg/mL). Persentase asam lemak jenuh dan tidak jenuh berturut-turut adalah 31,69 and 57,54%. Kesimpulan dari penelitian ini menunjukkan jamur endofit Xylaria sp. DAP KRI-5 berpotensi sebagai sumber asam lemak tidak jenuh. Penelitian ini merupakan laporan pertama dari asam lemak yang diproduksi oleh Xylaria sp. DAP KRI-5. 
RESPONSIFITAS VARIETAS UNGGUL BARU TEBU MASAK AWAL TERHADAP PEMUPUKAN Mala Murianingrum; Djumali Busro; Prima Diarini Riajaya
BERITA BIOLOGI Vol 19, No 2 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i2.3804

Abstract

More than 40% of the potential gap of varieties of sugarcane with actual results in the field is one of the causes of sugar self-sufficiency in Indonesia which has not been reached. The limited knowledge about the responsiveness of  early maturity sugarcane varieties to ferlization is one of the factors causing the large gap. The study aims to determine the responsiveness of new superior early maturity sugarcane varieties conducted in Janti Village, Kediri during July 2018 – August 2019. The study was arranged in a split plot design and repeated 3 times. The main plot consists of 5 fertilizing doses (0.9; 1.0; 1.1; 1.2, and 1.3 times the recommended dose). The subplots consists of 6 new varieties of early maturity sugarcane (MLG 5, MLG 9, MLG 14, PSMLG 2, PSMLG 1, and PS 881). Regression analysis is used to determine the form of response. The optimum dose was determined using the first derivative for closed quadratic equations and was determined > 1.3 times for positive linear equations. Varieties were grouped based on their optimum dose into five groups (no response, little response, sufficient response, more response, and very responsive). The results showed that the MLG 5, PSMLG 1, and PS 881 were classified as sufficient response, while MLG 9, MLG 14, and PSMLG 2 were classified as very responsive to fertilization. 
EFEKTIVITAS DOSIS KARBON TETRAKLORIDA (CCl4) TERHADAP TIKUS (Rattus norvegicus L.) SEBAGAI HEWAN MODEL FIBROSIS HATI Fahri Fahrudin; Sri Ningsih; Hajar Indra Wardhana; Dinda Rama Haribowo; Fathin Hamida
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3961

Abstract

Liver damage can produce fibrosis condition both acute and chronic. Development of liver fibrosis in animal models is valuable information in order to gain new entities for treatment. The aim of this study is to get an optimal condition of CCl4 induction for achieving animal models of liver fibrosis. CCl4 diluted in coconut oil was administrated orally for 6 consecutive weeks. Total 25 male rats were divided into 5 treatment groups, namely, P1 was a normal group (without CCl4). P2 (CCl4 40%), 1 ml/kg bw 3 times a week. P3 (CCl4 40%), 0.5 ml/kg bw 3 times a week, P4 (CCl4 10%) 1 ml/kg bw 3 times a week, and P5 (CCl4 10%) 1 ml/kg bw twice a week. The analyzed parameters were the activity of liver enzymes, macro and microscopic liver damage, and the percentage of rat deaths. The results of this study indicated an increase in liver enzymes in all treatments which was higher than P1 (P<0.05). Analysis of liver histopathology exhibeted the same result. However, if viewed the percentage of rat deaths, P5 demonstrated the lowest compared to all treatment groups. It could be concluded  that the administration of CCl4 (10%) was able to create an animal model of liver fibrosis optimally.  
PENGARUH KRIM EKSTRAK JINTAN HITAM (Nigella sativa) TERHADAP KADAR KOLAGEN DAN HIDRASI KULIT PADA TIKUS (Rattus norvegicus) GALUR WISTAR JANTAN YANG DIPAPAR SINAR ULTRAVIOLET-B Winda Sari; Linda Chiuman; Sahna Ferdinand Ginting; Chrismis Novalinda Ginting
BERITA BIOLOGI Vol 19, No 3A (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3A.3863

Abstract

Photoaging is caused by exposure to sunlight and ultraviolet radiation (UV-B) through the reactive oxygen species (ROS) molecules formation, resulting in decreased levels of collagen. It is characterized by wrinkles, sagging and rough surfaces. Black cumin has been used in medicine due to its high antioxidant potential. The aim of this study is to identify the effect of black cumin cream on collagen levels and hydration of the skin of Rattus norvegicus exposed to ultraviolet-B rays. This is experimental study in which 30 male Wistar strain rats were classified into 6 sub-groups, namely the KN group (without treatment), KP (getting Nivea cream moisturizer), P1 (basic cream ), P2 (black cumin seed extract cream 0.25%), P3 (cream 0.5%) and P4 (cream 0.75%). P4 rat collagen levels increased significantly before and after the intervention (24 ± 2.23 vs 42.6 ± 14.6, p <0.05).Cream with lower concentrations did not provide a significant increase (p> 0.05). P4 rats also showed increased skin hydration (38.6 ± 19.3 to 63.0 ± 4.47 (p <0.05)), and this was not found in other groups. The administration of topical black cumin seed extract 0.75% can inhibit decreased levels of collagen and increase skin tissue hydration.   
EKSPRESI Hsa-miR-22-3p PADA URIN PASIEN BENIGN PROSTATE HYPERPLASIA (BPH) SEBAGAI BIOMARKER NON INVASIF Angga Dwi Prasetyo
BERITA BIOLOGI Vol 20, No 1 (2021)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v20i1.3990

Abstract

Benign Prostate Hyperplasia (BPH) is one of prostate diseases with highest prevalence rates men in the world. Benign Prostate Hyperplasia are caused by many factors, such as disorders of androgen receptors, mutations genes, age, epigenetics and environment. Detection BPH in the form of Prostate Specific Antigen (PSA), Transurethral Resection Of Prostate (TURP) and Digital Rectal Examination (DRE) which is invasive in the patient. MicroRNAs in urine eksosomes can be used to detect BPH with non-invasive to patients. This study aims to determine the potential expression of Hsa-miR-22-3p in eksosomal urine samples of BPH as a non-invasive biomarker. This was an observational cross sectional analytic study. Urine samples were obtained from dr. Sardjito Yogyakarta and dr. Soeradji Tirtonegoro hospital. Furthermore, eksosomes isolation, RNA isolation, cDNA synthesis and quantification with qRT-PCR. Based on the results, it is known that Hsa-miR-22-3p decreased expression as much as 29.54 times in BPH, there were significant differences between samples of BPH and normal samples (P = 0.001). Thus Hsa-miR-22-3p has potential as a biomarker in Benign Prostate Hyperplasia. 
JUMLAH, UJI VIABILITAS DAN DAYA KECAMBAH POLEN 31 AKSESI PISANG (Musa sp.) KOLEKSI KEBUN PLASMA NUTFAH PISANG LIPI Erwin Fajar Hasrianda; Ahmad Zaelani; Yuyu Suryasari Poerba
BERITA BIOLOGI Vol 19, No 2 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i2.3859

Abstract

Cross pollination is one of the plant breeding techniques to create a better cultivar with desired traits. A successful cross pollination is affected by quality and quantity of the pollen used. The aim from this study is to know amounts, viability and germination from various banana accessions. This study was conducted by using 31 banana accessions. Pollen quantity per anther, pollen viability, pollen germination growth were measured. The results showed that pollen amounts were ranged between 5.032 and 118.181 pollens per anther. In addition, pollen viability ranged from 30% in Tingalun accession (Musa sp. cv. Tingalun)  to 99% in Malaccensis 2x accession. Furthermore, pollen germination level varied from 1% in Mambee Thu OS accession to 48% in Rutilifes 2x accession. We also found that negative correlation between pollen viability and pollen germination were moderate with correlation coeeficient value of -0,59 ( p-value = 0,00051). From 31 banana accessions tested in this research, pollen source from Malaccensis 2x and Rutilifes 2x banana accessions have the highest potential to be used as the male parent. 
ANALISIS KERAGAMAN GENETIK AKSESI KEDELAI INTRODUKSI DARI WILAYAH SUBTROPIS BERBASIS MORFOLOGI DAN MOLEKULER Rerenstradika Tizar Terryana; Nickita Dewi Safina; Suryani Suryani; Kristianto Nugroho; Puji Lestari
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3894

Abstract

Genetic diversity information on soybean germplasm will establish the success of soybean breeding program. In the present study, four qualitative morphological traits information collected from Germplasm Resources Information Network (GRIN), United States Department of Agriculture (USDA) database (www.ars-grin.gov) and 10 microsatellite markers were used to analyze the relationship among 45 accessions of subtropical introduced soybean. The morphological characters of introduced soybean accessions contributed to support the result of molecular characterization. The introduced soybean accessions used in this study were diverse based on morphological and molecular characters. Based on principle component analysis, the flower color, pod color, and growth habit contributed most of the total genetic diversity. All introduced accessions were overlap into four quadrants based on principal coordinate analysis. All microsatellite primers showed polymorphism on total accession observed. High allele variation (9–27 alleles) was observed among tested accessions, with an average allele number and Polymorphic Information Content (PIC) value of 20.7 and 0.95 (0.92–0.97), respectively. All microsatellite markers showed PIC value >0.7 indicating that these markers were suitable for soybean diversity studies with high differentiation and with the average value of genetic diversity of 0.95. The phylogenetic analysis revealed that 45 soybean accessions could be divided into two major groups. Soybean accessions belonging to the same area did not always occupy the same group. The results confirmed that both morphology and molecular genetic diversity in a combined way could efficiently evaluate the variation present in different soybean accessions in any breeding program.
CHROMOSOME COUNT ON YOUNG ANTHER OF BANANA MALE BUD USING EZYMATIC MACERATION AND DAPI STAINING IN SLIDE PREPARATION Fajarudin Ahmad; Yuyu Suryasari Poerba
BERITA BIOLOGI Vol 19, No 2 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i2.3851

Abstract

Chromosome counting is the basis in describing the chromosomes number of organism that might useful for genetic study and classification. In banana studies, the root tip with a combination of non-fluorescent staining methods such as carmine or orcein and squash is the most common material for chromosome counting. In this study, we presented the usefulness of young anther of banana male bud with enzymatic maceration method for cell spreading and 4,6-diamino-2-phenyl-indole (DAPI) for staining agent to get a satisfying chromosomes image at metaphase for mitotic study of diploid and tetraploid bananas. The principle of this study is fixation using ethanol:acetic acid (3:1), enzymatic digestion, maceration and staining using DAPI. Our result showed that this method can provide well spread cells with intensely contrast of chromosomes images that satisfying for chromosome counting. 
TEKNOLOGI PIRAMIDA GEN TANAMAN PADI DALAM MENGHADAPI PERUBAHAN IKLIM GLOBAL Fatimah Fatimah; Joko Prasetiyono; Sustiprijatno Sustiprijatno
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.3833

Abstract

In the attempt to maintain and hopefully increase national rice production, it is necessary to prepare agriculture sector in facing the impacts of climate change, land degradation, dry land, flooding, slowing production, and population growth rate. Adaptation efforts play an important role in ensuring the sustainability of food security. The development of adaptive rice varieties to abiotic stresses specifically drought and submergence stresses are expected to minimize damage, survive stress, continue to grow and produce. Development of Inpari 30 rice varieties tolerant to submergence to drought tolerant to have a broader spectrum of tolerance through marker-assisted backcrossing methods with the gene pyramid approach. The development of new variety using Inpari 30 as the background is one of the applications of pyramiding gene in Indonesia. Combining conventional breeding with molecular markers and phenotypic selection (drought and submergence) is expected to produce rice lines tolerant to drought and submergence with stabil yields and accelerate the homozygosity of the genome in the third generation. This is an alternative solution to dealing with climate change to support the national food security program.  
GLIKOBIOLOGI, GLIKANS DAN GLIKOPROTEIN BESERTA APLIKASINYA DALAM KESEHATAN Adi Santoso
BERITA BIOLOGI Vol 20, No 1 (2021)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v20i1.3991

Abstract

Glycobiology is a study of the structure, biosynthesis, glycosylation and biology of glycans that are widespread in nature. Through the process of glycosylation which is one of the most post-translational forms of protein modification, macromolecular structures that are as diverse as glycoproteins can be formed. In other words, glycosylation is one of the most common structural modifications used by biological systems to expand proteomic diversity. This makes glycosylation a very high prevalence, estimated at 50-70% of all proteins are glycoproteins. Glycosylation can affect proteolysis patterns, ligand-receptor interactions, oncogenic signal transduction, body immunity, cell adhesion and cell matrix. Because of the high level of structural variability that arises from the glycosylation process, many new strategies can be made using the uniqueness of this glycoprotein modification, especially in the pharmaceutical field. This includes modifications in protein engineering in the expression systems of yeast, plant cells and mammalian cells. 

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