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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,562 Documents
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Clinical Manifestations, Diagnosis, Management and Prevention of Cervical Cancer Sastraningsih Setiawati; Yunita Hapsari
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5594

Abstract

The second most prevalent cancer in women and one that may be mainly prevented or treated if discovered at an early stage, cervical cancer is a serious health concern worldwide, particularly in Indonesia. This literature review aims to provide related information about clinical manifestations, diagnosis, management and prevention of cervical cancer. We searched online databases and used review articles, research, guidelines from professional organizations, such as POGI from Indonesia and FIGO from London. The disease's clinical manifestations often appear in advanced stages and can include abnormal vaginal bleeding, pelvic pain, and pain during intercourse. Diagnosis typically involves a multi-step process beginning with physical examination, Pap smear tests, HPV testing, and possibly leading to colposcopy and biopsy procedures for confirmatory analysis. Management strategies for cervical cancer range from conservative watch-and-wait approaches in early-stage disease to more aggressive interventions such as surgery, radiation, and chemotherapy in more advanced cases. Prevention strategies have centered on HPV vaccination and regular screening tests, both of which remain underutilized in regions like Indonesia. Despite the availability of effective preventative and therapeutic measures, the high incidence and mortality rates emphasize the critical need for enhanced public health efforts to increase screening and vaccination rates, improve access to treatment, and promote education on cervical cancer. Cervical cancer usually does not appear until the cancer has reached an advanced stage trough increased awareness, education, and access to screening and treatment services, the burden of cervical cancer can be reduced.
Suicidal Risk in People with Obsessive Compulsive Disorder Wardha Novia Annisa; Athalita Andhera Nabil; I Komang Gede Andhika Wibisana; Sima Smith; Emmy Amalia
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5602

Abstract

Obsessive compulsive disorder or Obsessive Compulsive Disorder (OCD) is a psychiatric disorder characterized by excessive anxiety, persistent thoughts (obsessions), and repetitive behaviors (compulsions). The prevalence of OCD in Europe ranges from 0.1-2.3% annually and more common in adults. The risk of suicide increases ten times more in OCD sufferers compared to the non-OCD sufferers with prevalence the OCD sufferers who has thoughts of suicide is 23.3%. This literature review aims to determine the risk factors for suicide in OCD patients so that prevention can be carried out in individuals who have risk factors. In this literature review we conducted a search on the PubMed,  Google Schoolar, and Researchgate database  using  the search keyword “Obsessive Compulsive Disorder”, “Obsessive Compulsive Symptoms”, “Suicide”, “Self-murder”, and “Risk Factor”. OCD is a disease with genetic and non-genetic risk factors, can manifest clinically as obsessions and compulsions that occur due to failure in responding to yedasantience signals so that the security motivation system (SMS) will be activated longer than normal. The longer SMS activated, the more depressive symptoms can develop, which tends to give rise to suicidal thoughts. In conclusion, risk factors for suicide in OCD that can be identified earlier will not only help the patient's prognosis but also help them choose treatment steps that are appropriate with the severity of the OCD symptoms.
Protease Enzyme Activity of Fungal Isolates from Avocado and Coconut Fleshes on Different pH and Temperature Prapti Sedijani; Dinda Propita Lestari; Dewa Ayu Citra Rasmi; Kusmiyati Kusmiyati
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5603

Abstract

Protease enzymes are widely applied in the industrial field. Protease enzymes have high economic prospects with unmet demand. This article describes protease activity of two fungi isolated from avocados and from coconuts fleshes that previously have shown a high lipolytic activity on pH 7 to pH 10.  The protease test was performed on PDA medium supplemented with 1% of skim milk, and adjusted to pH 7, pH 8 and pH 9 and was incubated at room temperature and at 30°C. Protease activity was determined based on the clear zone around the colony observed on day two – day eight. The results showed that variations in pH and temperature had a significant effect on the protease activity. The highest protease activity of isolate from avocado and from coconut fleshes were observed at pH 7, room temperature and incubated for 24 hours, with a protease activity index of 0.36 and 0.31 respectively.
Isolation and Screening of Amilolytic Bacteria Isolate from Cassava (Manihot utilissima) Prapti Sedijani; Bq. Novi Aprilia; Dewa Ayu Citra Rasmi; Kusmiyati Kusmiyati
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5604

Abstract

Amylase is an enzyme capable of hydrolyzing starch into simpler sugars. The use of amylase enzymes is urgently needed in various industrial fields, therefore the search for sources of amylase enzyme producers continues to be carried out for sources of amylase enzyme producers. Each industrial field has specific requirements for amylase enzymes. This study aims to isolate bacteria capable of producing amylase enzyme and to determine the amylase activity of bacteria isolated from cassava (Manihot utilissima) when incubated at different temperatures (room temperature and 30℃) and pH levels (7, 8, 9, and 10). The research involved bacterial isolation, testing the amylase activity of the isolated amylolytic bacteria at varying pH and temperatures, and characterizing the amylolytic bacteria. The amylolytic bacterial activity was qualitatively measured based on the clear zone's area formed around the colony. From this study 5 isolates showing amylolytic activity were obtained. The amylolytic activity index varied among the isolates, ranging from 0.12 to 0.59. The highest amylolytic activity index (0.59) was performed by S4 isolate on pH 10 medium incubated at 30℃. Microscopic and gram staining analysis suggest that two isolates were gram-negative coccus bacteria and three of them were gram-positive coccobaccilus bacteria.
Bioecology of Saline Tilapia (Oreochromis niloticus) at Different Stocking Densities in Polyculture Ponds Petta Barat, Sangihe Island Distric Abril Siri; Sysylya Palakua; Deafranty Wengkenusa; Delfian Koneng; Yeni Indriani
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5606

Abstract

Saline Tilapia (Oreochromis niloticus) cultivation in Petta Barat using extensive and monoculture cultivation techniques that low productivity and profits. To increase productivity is to cultivate in polyculture with other organisms that have high economic value, one of which is polyculture with milkfish (Chanos Chanos) using optimal stocking densities. This study aims to determine differences in stocking density on the growth of tilapia (O. niloticus) and to analyze the range of water quality values at the cultivation location. The research method Random Design Experiments with complete (RAL) used monoculture and polyculture systems. The research results obtained were different stocking densities and monoculture and polyculture cultivation systems had no significant effect on the average length, average weight, absolute length, absolute weight, and specific growth rate of saline tilapia. Meanwhile, based on water quality analysis including temperature, DO (Dissolved oxygen), TDS (Total Dissolved Solid), pH, nitrate, nitrite and ammonia are still by the standards and are still optimal for the growth of tilapia. This study concludes that at different stockings with both polyculture and monoculture systems, it does not affect the growth of tilapia so the recommendation is cultivation using a polyculture system with maximum densities.
Bioecology Study of Brackish Pond Waters for Saline Tilapia in Petta Barat Village Sangihe Archipelago District Febertin T. Sondak; Asriani E. Medellu; Ersa K. N. Legrants; Delfian F. Koneng; Magdalin Ulaan
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5607

Abstract

Problems that often arise in the fisheries sector, especially in the development of saline tilapia aquaculture, are always related to constraints in feed supply. Therefore, feed management involving the use of immunostimulants is required as an effort to improve the growth and survival of saline tilapia. Thus, the objective of this study was to identify the relationship between the use of immunostimulant yeast derived from natural extracts of cucumber fruit on the relative growth rate of saline tilapia and its relationship with ecological characteristics and water quality in saline tilapia ponds in Petta Barat Village, Sangihe Regency. This study applied a completely randomized experimental design (CRED) with four treatment groups and repeated it three times. The treatment groups were A (no addition of natural yeast in feed), B (10 ml natural yeast/kg feed), C (20 ml natural yeast/kg feed), and D (30 ml natural yeast/kg feed). Feeding was done twice a day, with the amount of feed given as 5% of the fish body weight. The findings of this study indicated that variations in the addition of natural yeast of cucumber fruit extract to the feed did not result in a significant impact on the relative growth rate of saline tilapia. In addition, water quality parameters such as temperature, pH, dissolved oxygen (DO), salinity, nitrate, nitrite, and ammonia remained within appropriate ranges and supported the survival of saline tilapia.
Literature Review: Potential of Coriander (Coriandrum sativum L.) as a Source of Natural Antioxidants Mutiara Ghina; Elsa Yuniarti; Yusni Atifah
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4b.5610

Abstract

Indonesia is a country known for its richness in spices, one of the spices that is widely used by the people of Indonesia is coriander. Coriander is a spice that has many antioxidant compounds and biological activities that have the potential to be utilized as a source of natural antioxidants. The purpose of writing this article is to find out the potential of coriander plants as a source of natural antioxidants through literature review. The method used in writing this article is a Literature Review Article (LRA) with the Preferred Reposting Items for Systematic Review and Meta-Analysis (PRISMA) approach. Based on the results of the reviewed articles, 11 relevant articles were obtained stating that coriander has the potential as a source of natural antioxidants. coriander extract and its antioxidant compounds have biological activities such as antiinflammatory, antidiabetic, anticholesterol, and anticancer, so they can be used as herbs in the treatment of disease.
Efficacy Of Wood Vinegar Produced from Sengon and Jabon Wood Against on Schizophyllum commune Kuswadi; Alkhadi; H. A. Oramahi; Slamet Rifanjani
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5611

Abstract

Wood dust waste can be used to make liquid smoke such as sengon wood and jabon wood. The aim of the research was to evaluate the antifungal properties of sengon and jabon wood liquid smoke in inhibiting the growth of the S. commune fungus in vitro. The process of making liquid smoke through the pyrolysis method. The research experiment was carried out using a factorial type randomized block design. The results showed that the type of liquid smoke and its concentration had a very significant effect on inhibiting the growth of the S. commune fungus. Fluid smoke from sengon and jabon wood actually restrained the development of S. commune by 100% at a concentration 2%. The conclusion is that the contents of liquid smoke from these two types of liquid smoke, namely total phenol and total acid, are compounds that function as antifungal agents.
Physical and Chemical Quality of Fresh Maggots Cultivated with Special Application of The Media Used Dwi Kusuma Purnamasari; Erwan; Sumiati; Rijki Purnama S
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5612

Abstract

The high price of protein feed for livestock makes maggots potential as an alternative protein feed. The first stage in this research was maggot maintenance and maggot harvesting on the 15th day of maintenance. Next, measurements of the physical and chemical quality of fresh maggot were carried out. Parameters for measuring the physical quality of fresh maggot consist of harvest weight, individual weight, individual length and color. The parameters for measuring the chemical quality of fresh maggot consist of water content, ash, crude fat, crude fiber and crude protein. Data analysis was carried out using the Independent Sample T-test. The results showed that the maggot that was cultivated with the special media used had an average harvest weight of 1.24 kg, while the maggot that was cultivated without the special media used had an average harvest weight of 0.72 kg. The maggot that was cultivated with the special treatment of the media used contained 31.5% protein, while the maggot that was cultivated without the special treatment of the media used contained 32.9% protein. The conclusion of this study is that maggot that is cultivated with the special treatment of the media used produces maggot with superior physical quality compared to maggot that is cultivated without the special treatment of the media used.
The Effect of Burned Rice Husks and NPK Fertilizer Application on The Growth of Bok Choy (Brassica Rapa L. Subsp. Chinensis) Ranti Eka Lestari; Lalu Zulkifli; Ahmad Raksun
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5616

Abstract

Fertilizer is very important factor in achieving high productivity, especially in providing essential nutrients. The application of inorganic fertilizers without adding organic fertilizers potentially reduces soil fertility and damages soil structure. This study aimed to determine the effect of burned rice husks, NPK fertilizer application, on the growth of Chinensis bok choy (Brassica rapa L. Subsp. Chinensis). The study employed a completely randomized design (CRD) consisting of 2 factors, with 5 treatment levels. The burned rice husks treatments comprised (0 gr, 90 gr, 110 gr, 130 gr, and 150 gr), while the NPK fertilizer treatments comprised (0 gr, 0.4 gr, 0.6 gr, 0.8 gr, 1.0 gr / 100 ml water). Data were analyzed using an ANOVA test. The results showed that the NPK fertilizer factor significantly influenced all parameters, including plant height, leaf number, wet weight, and dry weight. The burned rice husks factor and the interaction between burned rice husks and NPK fertilizer had no significant effect on all parameters, namely plant height, leaf number, wet weight, and dry weight of the Chinensis bok choy. The optimal treatment for the interaction of burned rice husks and NPK fertilizer "Mutiara 16" was with the N4S4 treatment (combination of NPK Mutiara 1.0 gr/100 ml water and burned rice husks 150 gr) for plant height, leaf number, wet weight, and dry weight parameters, while the optimal treatment for chlorophyll concentration content was with the N3S2 treatment (combination of NPK Mutiara 0.8 gr/100 ml water and burned rice husks 110 gr).

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