cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Achmad Arifiyanto
Contact Email
achmad.arifiyanto@fmipa.unila.ac.id
Phone
+6281252496386
Journal Mail Official
achmad.arifiyanto@fmipa.unila.ac.id
Editorial Address
Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung Jl. Sumantri Brojonegoro No. 1 Bandar Lampung Lampung 35145
Location
Kota bandar lampung,
Lampung
INDONESIA
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)
Published by Universitas Lampung
ISSN : 23384344     EISSN : 2686200X     DOI : https://doi.org/10.23960/jbekh.vxxx.xxx
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
This journal focuses on the fields of Agricultural, Animal Sciences, Bioconservation, Biopharmacology, Biotechnology, Biomedical, Biological control, Behavioural ecology, Plant Sciences, Ecology, Fishery, Marine Biology, Fresh Water Biology, Microbiology, Immunobiology, Ecotoxicology, and Parasitology. This journal utilizes both the LOCKSS and CLOCKSS systems to create a distributed archiving system among participating libraries and permits those libraries to create permanent archives of the journal for purposes of preservation and restoration
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 223 Documents
 15   16   17   18   19 
The Diversity of Singing Birds at the Way Canguk Research Station, Bukit Barisan Selatan National Park Andriyani, Agista; Nurcahyani, Nuning; Susanto, Gregorius Nugroho; Sibarani , Marsya Christyanti; Utoyo , Laji
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.206

Abstract

Birds have an important role in controlling natural ecosystems. The presence of hunting traces every year indicates hunting at the Way Canguk Research Station. If this happens continuously, it can cause a decrease in the diversity and population of chirping birds. Therefore, this research needs to be carried out to determine the diversity, evenness, richness, relative density, as well as environmental factors that affect the chirping bird community, and the intensity of bird hunting in SPWC. The research was conducted at the Way Canguk Research Station, Bukit Barisan Selatan National Park, using the point count method.
Growth of Hornbill Feed Seeds at Way Canguk Research Station, Bukit Barisan Selatan National Park Irawan, Dimaz; Nurcahyani, Nuning; ., Priyambodo; Kanedi, M; Utoyo, Laji
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.207

Abstract

Rangkong merupakan jenis burung pemakan buah (frugivory). Buah yang dikonsumsi rangkong dikategorikandalam buah yang kecil dengan jumlah yang banyakdan jenis buah yang memiliki batu (stone seeds), yaitu jenis fikus dan non fikus. Peran rangkong di hutan sangatlah penting yaitu sebagai penebar bijimelalui sisa makanan dan kotoran rangkong karena sistem pencernaannya yang tidak merusak biji  sehingga mencerminkan hutan yang sehat dan menandakan masih adanya pohon-pohon besar di wilayah tersebut. Penelitian ini dilakukan di Stasiun Penelitian Way Canguk (SPWC) TNBBS Lampung dengan metode observasi  langsung melalui pengamatan laju pertumbuhan biji pakan rangkong secara generatif (semai) pada lokasi yang berbeda. Data disajikandalam bentuk tabel dan diagram kemudian dianalisis secara  deskriptif. Hasil penelitian menunjukan diperolehnya biji sebanyak 581 buah dari 12 famili dan 26 spesies serta 7 jenis yang belum teridentifikasi. Nasib biji setelah dimuntahkan tumbuh sebanyak 39% dari keseluruhan biji yang diperoleh dan 61% biji  tidak  mengalami pertumbuhan diduga karena adanya predator biji dan rusaknya biji serta faktor naungan yang dapat menghambat pertumbuhan biji. Biji dari buah fikus yang berasal dari defekasi tidak mengalami pertumbuhan. Nilai laju pertumbuhan semai di alam  lebih cepat dibandingkan dengan semai yang berada di media terkontrol atau disekitar kamp SPWC.     The hornbill is a type of frugivory bird. The fruit consumed by the hornbill is categorized into small fruit with a large number and the type of fruit that has stone seeds, namely ficus and non-ficus types. The role of hornbill in the forest is very important, namely as seed dispersal through food waste and hornbill droppings because their digestive system does not damage the seeds so that it reflects a healthy forest and indicates the presence of large trees in the area. This research was conducted at the Way Canguk Research Station (SPWC) TNBBS Lampung with direct observation by observing the growth rate of generative hornbill feed seeds (seedlings) at different locations. The data is presented in the form of tables and diagrams and then analyzed descriptively. The results showed that 581 seeds were obtained from 12 families and 26 species and 7 species that had not been identified. The fate of seeds after vomiting grew as much as 39% of the total seeds obtained and 61% of seeds did not experience growth, presumably due to seed predators and seed damage and shading factors that could inhibit seed growth. Seeds of ficus fruit from defecation did not grow. The value of the growth rate of seedlings in nature was faster than those in controlled media or around the SPWC camp.      
Potentially Invasive Plant Types in Way Kambas National Park Master, Jani; Sumianto; Santoso; Fanani, Ahmad; Alim, Nur; Prastika, Ichan; Yunus, Muhammad
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.208

Abstract

Tumbuhan asing invasif merupakan salah satu ancaman bagi keanekaragaman hayati Indonesia. Tumbuhan ini dapat mengubah ekosistem dengan mendominasi lanskap. Mengingat besarnya dampak yang dapat ditimbulkan oleh invasi tumbuhan di kawasan konservasi, maka perlu dilakukan inventarisasi jenis-jenis tumbuhan yang berpotensi invasif di Taman Nasional Way Kambas (TNWK), sehingga dampak negatif dari invasi akan mudah di cegah. Inventarisasi dilakukan dengan membuat plot analisis vegetasi pada empat tipe vegetasi di TNWK, yaitu vegetasi hutan, vegetasi hutan campuran, vegetasi rawa dan vegetasi alang-alang. Berdasarkan hasil analisis vegetasi, diperoleh 11 jenis tumbuhan berpotensi invasif di TNWK, yaitu Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.     Invasive alien plant species are a threat to Indonesia's biodiversity. These plants can change ecosystems by dominating landscapes. Given the magnitude of the impact that can be caused by plant invasions in conservation areas, it is necessary to carry out an inventory of potentially invasive plant species in Way Kambas National Park (TNWK), so that the negative impacts of these invasions can be easily prevented. . The inventory was carried out by plotting vegetation analysis on four types of vegetation in TNWK, namely forest vegetation, mixed forest vegetation, swamp vegetation, and alang-alang vegetation. Based on the results of the vegetation analysis, 11 species of plants that have the potential to be invasive in TNWK were found, namely Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.      
Plant Species In The Honggoderpo Cemetery, Wonosobo Regency, Central Java Irsyam, Arifin Surya Dwipa; Ristiawan, Hani; Hariri, Muhammad Rifqi; Peniwidiyanti, Peniwidiyanti; Irwanto, Rina Ratnasih
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.214

Abstract

Honggoderpo Cemetery is one of the urban green open spaces (RTH) which is located adjacent to the center of Wonosobo Regency, Central Java. This cemetery is a sacred area, so disturbances to the environment are rare, including plants. Therefore, plant diversity is still maintained...
Eating Behavior of the Klihingan Hornbill (Anorrhinus Galeritus) When Nesting at the Way Canguk Research Station, Bukit Barisan Selatan National Park (TNBBS) Apriliasari, Messy; Nurcahyani, Nuning; Rustiati, Elly Lestari; Priyambodo, Priyambodo; Utoyo, Laji
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.217

Abstract

Enggang klihingan merupakan salah satu jenis rangkong (Bucerotidae) yang hidup berkelompok, berperan penting secara ekologis sebagai penyebar biji. Perilaku bersarangnya unik, selama mengerami induk betina mengurung diri di lubang pohon yang ditutup lumpur dan disisakan lubang kecil untuk enggang lainnya melewatkan pakan dari luar sarang. Penelitian ini bertujuan untuk mengetahui perilaku makan enggang pada saat bersarang dan mengumpulkan data jenis buah pakannya. Penelitian dilakukan menggunakan metode focal animal sampling, pada bulan Februari – April 2021 di Stasiun Penelitian Way Canguk (SPWC), Taman Nasional Bukit Barisan Selatan (TNBBS). Perilaku enggang yang teramati dominan berupa mengeluarkan satu per satu pakan dari dalam temboloknya, kemudian memosisikan pakan ke ujung paruh untuk dimuntahkan ke sarang. Komposisi buah yang dijadikan pakan enggang meliputi 18 jenis buah, yaitu Ficus altissima, Ficus sundaica, Ficus crassiramea,  Ficus stupenda var.minor, Polyalthia lateriflora, Oncosperma horridum, Canarium megalanthum, Canthiumera glabra, Zuccarinia macrophylla, Antiaris toxicaria, Myristica sp., Horsfieldia sp., Magnolia champaca, Dysoxylumsp., Fibraurea tinctoria, Endocomia macrocoma, Actinodhapne borneensis, dan Alseodaphne falcata. Waktu yang paling sering digunakan untuk memberi makan adalah sore hari pukul 16.00 – 17.00 WIB. Rerata enggang mengunjungi sarang 15 kali/hari dan membawa paling banyak 16 buah dalam sekali kunjungan. Enggang mampu memberi makan dengan lama durasi 3 – 5 buah/menit.     Bushy-crested hornbill is a type of hornbill (Bucerotidae) that lives in groups, playing an important ecological role. Their nesting behavior is unique, during incubation, the female locks herself in a mud-covered tree hole and leaves a small hole for other hornbills to spread food from outside the nest. This study aimed to find out the eating behavior of hornbills during nesting and collect data on the types of fruit they eat. This study was conducted using a focused animal sampling method, from February to April 2021 at Way Canguk Research Station (SPWC), Bukit Barisan Selatan National Park (TNBBS). The dominant behavior of hornbills was observed in the form of removing the bait one by one from the cache, then placing the bait to the tip of the beak to vomit into the nest. The fruit composition used as hornbill food includes 18 types of fruit, namely Ficus altissima, Ficus sundaica, Ficus crassiramea, Ficus stupenda var. minor, Polyalthia lateriflora, Oncosperma horridum, Canarium megalanthum, Canthiumera glabra, Zuccarinia macrophylla, Antiaris toxicaria, Myristica sp., Horsfieldia sp., Magnolia champaca, Dysoxylum sp., Fibraurea tinctoria, Endocomia macrocoma, and Alseodaphne falcata. The most common time used for feeding is from 16:00 - 17:00 WIB. The average hornbill visits the nest 15 times/day and brings a maximum of 16 fruits in one visit. Hornbills can feed with a fairly low duration (3-5 pieces/minute).    
Terathogenic Testing of Black Cumin (Nigella sativa L.) Extract on The Number of Fetuses, Length of Front and Back Extremities, and The Number of Malformation Fetus in Mice (Mus musculus L.) Fardhira, Zikra; Nurcahyani, Nuning; Agustrina, Rochmah; Tugiyono, Tugiyono
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.218

Abstract

Pemakaian obat tradisional telah berkembang dengan baik dan saat ini sudah banyak digunakan sebagai obat alternatif untuk mengatasi masalah kesehatan. Obat tradisional akan memberikan khasiat yang baik apabila dikonsumsi dengan cara dan dosis yang tepat untuk tujuan pengobatan. Berdasarkan penelitian sebelumnya pemberian jintan hitam (Nigella sativa L) terhadap mencit betina menyebabkan terjadinya aktivitas antifertilisasi, antinociceptif, kontrasepsi postcoitus, dan antioksitosin yang diduga dapat melancarkan menstruasi. Tingkat keamanan konsumsi jintan hitam pada masa kehamilan terhadap perkembangan fetus, serta sistem reproduksi mencit betina yang menimbulkan malfomasi congenital pada anaknya belum banyak diteliti. Tujuan dari penelitian ini untuk mengetahui pengaruh ekstrak jintan hitam (Nigella sativa L) terhadap jumlah fetus mencit,ukuran panjang ekstremitas depan dan belakang pada fetus mencit, dan jumlah fetus malformasi pada  mencit. Penelitian ini menggunakan 20 ekor  mencit betina yang sudah bunting dan dibagi menjadi 4 kelompok yaitu kelompok K (kontrol) diberi 0,3 mL aquabides, kelompok perlakuan P1 dengan dosis 2,1 mg/g BB dalam 0,3 mL aquabides, kelompok perlakuan P2 dengan dosis 8,4 mg/g BB dalam 0,3 mL aquabides, dan kelompok perlakuan P3 dengan dosis 33,6 mg/g BB dalam 0,3 mL aquabides. Perlakuan diberikan pada hari ke 6  sampai ke 17 kebuntingan. Hasil menunjukkan bahwa pemberian ekstrak jintan hitam tidak memberikan pengaruh terhadap jumlah fetus yang dikandung dan tidak menurunkan  pertumbuhan ekstrimitas depan dan belakang fetus mencit karena tidak menunjukkan hasil yang signifikan antara kelompok kontrol (K) dan kelompok perlakuan (P1, P2, dan P3). Pemberian ekstrak jintan hitam (Nigella sativa L.) tidak meningkatkan jumlah fetus malformasi akan tetapi menyebabkan adanya fetus yang mati pada saat kelahiran dan mengalami malformasi pada beberapa fetus lainnya.     The use of traditional medicine has developed well and is now widely used as an alternative medicine to treat health problems. Traditional medicine will provide good efficacy if consumed in the right way and dosed for medicinal purposes. Based on previous research, giving black cumin (Nigella sativa L) to female mice caused infertility, antinociceptive, postcoitus contraception, and anti-oxytocin activities which were thought to be able to launch menstruation. The safety level of consumption of black cumin during pregnancy on fetal development, as well as the reproductive system of female mice that cause congenital malformations in their offspring, has not been widely studied. The purpose of this study was to determine the effect of black cumin extract (Nigella sativa L) on the number of mice fetuses, the length of the front and back extremities in mice fetuses, and the number of malformed fetuses in mice. This study used 20 pregnant female mice and was divided into 4 groups, namely group K (control) was given 0.3 mL aquabidest, treatment group P1 with a dose of 2.1 mg/g BW in 0.3 mL aquabidest, treatment group P2 with a dose of 8.4 mg/g BW in 0.3 mL aquabidest, and the P3 treatment group with a dose of 33.6 mg/g BW in 0.3 mL aquabidest. The treatment was given on the 6th to 17th day of pregnancy. The results showed that the administration of black cumin extract had no effect on the number of fetuses conceived and did not reduce the growth of the front and rear extremities of the mice fetuses because it did not show significant results between the control group (K) and the treatment group (P1, P2, and P3). The administration of black cumin extract (Nigella sativa L.) did not increase the number of malformed fetuses but caused fetal death at birth and malformations in several other fetuses.      
Larvicide Effects of Serratia marcescens strain MBC1 Extract on Instar III Larvae of Aedes aegyti Lestari, Mutia Dinda; Nukmal, Nismah; Setyaningrum, Endah; Farisi, Salman; Arifiyanto, Achmad
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.219

Abstract

Bakteri merupakan kandidat yang berpotensi sebagai larvasida Aedes aegypti. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak Serratia marcecsens strain MBC1 terhadap kematian larva instar III Aedes aegypti. Penelitian ini merupakan penelitian eksperimental dengan dua macam bentuk pengujian, yaitu uji larvasida untuk menentukan mortalitas dan uji lanjut untuk melihat perkembangan larva setelah perlakuan larvasida. Larva instar III diberi perlakuan dengan konsentrasi 125, 250, 500, dan 1.000 ppm. Uji larvasida diamati selama 24-72 jam. Uji lanjut larva instar III  diberi perlakuan dengan konsentrasi 500 dan 1.000 ppm serta diamati sampai semua larva mati. Kontrol positif menggunakan Abate® 1% dan kontrol negatif menggunakan air sumur. Hasil analisis probit didapatkan bahwa nilai LC50 dan LC90 ekstrak S. marcescens adalah 66.426,02 dan 749.001,41ppm. Larva instar III mati pada 18 hari setelah perlakuan ekstrak S. marcescens strain MBC1. Hasil dari penelitian ini menunjukkan bahwa larvasida ekstrak S. marcescens mempengaruhi lamanya siklus hidup dan mati sebelum mencapai stadium dewasa.     Bacteria have potencial as larvicide of Aedes aegypti. The purpose of this study is to determine the effect of Serratia marcescens strain MBC1 against larval third instars of Aedes aegypti. This research was an experimental study with two kinds of testing. The larvicide test to determine the mortality of the larval and the continuous test to observe the development of the larval after treatment with the larvacide. The third instars of mosquito larval were given bacterial extract in four concentrations (125, 250, 500, and 1000 ppm), and observed mortality during 72 hours. The continuous larvicide test was observed at two concentrations (500 and 1,000 ppm). The observation is completed when all of the larvae died. The positive control used Abate® 1% and the negative control used natural water. The treatment was repeated 4 times. The results show that LC50 and LC90 of S. marcescens extract are 66,426.02 dan 749,001.41 ppm.  All of the larvae in the continuous test die after 18 days have been givenan extract of S. marcescens strain MBC1. The experiment shows that the larvicide of extract of S. marcescens influences the length of the life cycle and larvae of Ae. aegypti die before reaching the adult.    
Effectiveness of Sprout Extract (Vigna radiata) as a Sunscreen Material Using Uv-Vis Spectrophotometer Andi Anwar; Greny Mispi Anisa Sari; Subagiyo, Lambang; Nuryadin, Atin
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 2 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i2.240

Abstract

Paparan sinar ultraviolet (UV) dari matahari dalam waktu yang lama dapat menyebabkan kerusakan kulit akut seperti tanning, kulit kemerahan atau eritema dan sunburn. Sehingga diperlukan sediaan tabir surya untuk melindungi kulit dari dampak buruk sinar UV. Pada penelitian ini, dibuat sunscreen dengan ekstrak kecambah, dimana diketahui bahwa kecambah memiliki kandungan asam amino leusin, arginin, isoleusin, valin, lisin, dan antioksidan yang cukup tinggi. Kandungan ini bermanfaat bagi tubuh dan baik untuk kesehatan kulit. Penelitian ini bertujuan menguji efektivitas ekstrak kecambah (Vigna radiata) sebagai bahan sunscreen dengan metode menggunakan alat spektrofotometer Uv-Vis. Kecambah diekstraksi dengan etanol 95% kemudian dilakukan pengukuran nilai SPF menggunakan spektrofotometer Uv-Vis dengan panjang gelombang antara 290-320 nm. Hasil penelitian menunjukan bahwa ekstrak kecambah nilai SPF yang didapatkan adalah 23 yang termasuk kedalam kategori perlindungan sedang.   Kata kunci: spektrofotometer, SPF, sunscreen,Vigna radiata, Uv-Vis, Exposure to ultraviolet (UV) rays from the sun for a long time can cause acute skin damage such as tanning, erythema, and sunburn. So, it is necessary to prepare sunscreen to protect the skin from the adverse effects of UV rays. In this study, a sunscreen was made with sprout extract, where it was found that the sprouts contained high levels of the amino acids, leucine, arginine, isoleucine, valine, lysine, and antioxidants. This content is beneficial for the body and good for skin health. This study aimed to test the effectiveness of sprout extract (Vigna radiata) as a sunscreen ingredient by using a Uv-Vis spectrophotometer. Sprouts were extracted with 95% ethanol and then the SPF value was measured using a UV-Vis spectrophotometer with a wavelength between 290-320 nm. The results showed that the sprout extract SPF value obtained was 23 which was included in the category of moderate protection.   Keywords: spectrophotometer, SPF, sunscreen, Uv-Vis,  Vigna radiata
Colchicine Effect of Mitosis Root Tip by Banana Kepok Yellow (Musa paradisiaca L.) Polyploid Explants Yana, Dellya Vivi; Ernawiati, Eti; Agustrina, Rochmah; Handayani, Tundjung Tripeni
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 10 No. 1 (2023)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v10i1.210

Abstract

Colchicine can inhibit spindle formation so that doubled chromosomes fail to separate during anaphase cytologically to induce mutations that produce polyploid plants. Yellow kepok banana is a triploid banana. The supply of yellow kepok bananas is hampered by conventional cultivation methods and the limited availability of quality seeds. This study aims to determine the effect of adding colchicine compound to tissue culture media on the mitotic index, chromosome number, and chromosomal abnormalities in yellow kepok bananas and the formation of polyploid plantlets. This study was included in the experimental study by conducting mitotic preparation and observing morphology after the test sample was induced by colchicine. The results of the research that has been done show that the addition of the compound colchicine to the tissue culture medium of yellow kepok banana causes a decrease in the mitotic index, an increase in the number of chromosomes, the presence of chromosomal abnormalities, the formation of polyploid plantlets, and an increase in the number of roots, but there is a reduction in root length.
Microplastic Analysis at Sea Water and Sediment in the Mahitam Island Lampung Bay using FT-IR Nita Sari; Widiastuti, Endang Linirin; Pratami, Gina Dania; Tugiyono, Tugiyono
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 10 No. 1 (2023)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v10i1.255

Abstract

The amount of garbage that accumulates in the waters causes environmental damage which is getting worse. The breakdown of plastic waste into smaller particles that have been degraded is called microplastic. This study aims to analyze the number of particles, shapes, and types of microplastic polymers found in the water and sediments of Mahitam Island. The research location was determined by purposive random sampling with three stations based on plastic sources, namely Station I, Station II, and Station III, which had different characteristics from laboratory-based testing for seawater and sediment. Microplastic analysis on seawater samples was carried out by adding a solution of 70% ethanol, 30% H2O2, and 30% NaCl, and on sediment samples was carried out by adding a solution of FeSO4 (0.05 M), NaCl, and 30% H2O2. The content of the number of particles and the shape of microplastics were analyzed using a microscope, while the analysis of microplastic polymers using FT-IR. The first thing to do is to extract microplastics The forms of microplastic found are Fiber, Film, Fragments, and Pellets. The highest number of microplastic particles was the type of film for water samples at Station 1 and Station 2 for sediment samples. The types of polymers found in water and sediments on Mahitam Island are polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and polystyrene (PS) which come from plastic waste. Microplastics are known to originate from the use of plastic originating from tourist activities and originating from the sea currents of Mahitam Island.

Page 17 of 23 | Total Record : 223

 15   16   17   18   19 

Filter by Year

2013 2025


Reset
Filter By Issues
All Issue Vol. 12 No. 1 (2025) Vol. 11 No. 2 (2024) Vol. 11 No. 1 (2024) Vol. 10 No. 2 (2023) Vol. 10 No. 1 (2023) Vol. 9 No. 2 (2022) Vol. 9 No. 1 (2022) Vol. 8 No. 2 (2021) Vol. 8 No. 1 (2021) Vol. 7 No. 2 (2020) Vol. 7 No. 1 (2020) Vol. 6 No. 2 (2019) Vol. 6 No. 1 (2019) Vol. 5 No. 2 (2019) Vol. 5 No. 1 (2018) Vol. 4 No. 2 (2017) Vol. 4 No. 1 (2017) Vol. 3 No. 2 (2016) Vol. 3 No. 1 (2016) Vol. 2 No. 2 (2014) Vol. 2 No. 1 (2014) Vol. 1 No. 2 (2013) Vol. 1 No. 1 (2013) More Issue