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Bioma : Berkala Ilmiah Biologi
Published by Universitas Diponegoro
ISSN : -     EISSN : 25982370     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
BIOMA (ISSN 1410-8801) adalah Majalah Ilmiah Biologi yang bertujuan mewadahi semua informasi hasil penelitian, telaah pustaka, makalah teknis, dan kajian buku, dari berbagai cabang ilmu Biologi. Diharapkan penerbitan ini dapat berkontribusi dalam penyampaian informasi ilmiah yang merupakan mata rantai proses kegiatan ilmiah. Terbit sejak tahun 1999.
Arjuna Subject : -
Articles 318 Documents
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Kelimpahan dan Keanekaragaman Plankton Sebagai Bioindikator Kualitas Air di Perairan Pantai Sayung Kabupaten Demak Jawa Tengah Maya Evita, Isnaini Nurul; Hariyati, Riche; Hidayat, Jafron Wasiq
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.25-32

Abstract

Sayung coast is a area with a growing residential, sea ranching, and industrial area. Those aspects produce create waste that could harm the environment, directly or indirectly. Plankton is a biologic component that is used to indicate the changes of water quality in waters that has been polluted. These goals of this research are to know the water quality in Sayung coast area from the abundance of the plankton,  physical-chemical parameter of the water, and also the status of water saprobity. The samples are taken in July 2017 and April 2018, in Sayung coast waters, Demak. Plankton sampling and water from 5 sampling stasions are considered to represent the diversity of the plankton and water stability. Plankton is sampled using plankton net No.25, then preserved using 70% alcohol + 4% formaldehyde. The abiotic data measureted is nitrate content, temperature, pH, salinity, DO, and turbidity. Data analysis are done using Shannon Weiner’s diversity index (H’), diversty index (e), domination index (C), saprobic index. The result shows that there are 49 species of planktons are found, which are 38 fitoplankton, and 11 zooplankton. The highest group is Bacillariophyta which is 14,24%. The diversty index value of H’ 1,58 – 2,45; therefore the Sayung coast waters is catagorized as stable. The index value of e ranges from 0,64 – 1; index C values ranges from 0,08 – 0,22; and the saprobirity index value is in β-Meso/Polisaprobik to α-Mesosaprobik phase with a very light to very high pollution levels. The physical-chemical parameter analysis of Sayung coast waters in overall is still suitable to support plankton’s life.
Struktur Komunitas Kupu-Kupu Superfamili Papilionoidae (Lepidoptera) di Kawasan DAS Budi Kecamatan Sungai Betung Kabupaten Bengkayang Provinsi Kalimantan Barat Diba, Farah; Ressiawan, R; Nurhaida, N
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.77-83

Abstract

The Budi watershed, which is located in Sungai Betung Subdistrict, Bengkayang Regency, West Kalimantan Province, is a land and water conservation area which is a source of clean water for the community. The forest in the Budi watershed becomes a habitat for butterflies. The research aims to analyze the community structure and identify the types of butterflies in Budi watershed Sungai Betung Subdistrict, Bengkayang Regency, West Kalimantan Province. The research methods used survey method with scan sampling technique in the morning and evening. Data from the inventory of butterfly species and the number of individuals of each species were analyzwd using the Shannon-Wiener diversity index (H”), the Margalef species richness index (DMg) and the Simpson dominance index (D). The results showed that the total number of butterfly species found in the Budi watershed was 22 species with 148 individuals belonging to three families, namely Nymphalidae (14 species), Papilionoidae (3 species), and Pieridae (5 species). The most dominance species found were Eurema blanda, Hypolimnas bolina, and Letopsia nina. The index of butterfly species richness in Budi watershed was DMg = 9.67 and is included in categorized high species richness. The butterfly dominance index D = 0.0066 and it categorized to low species dominance. Species diversity index H” = 2.093 and showed the diversity of butterfly species in the Budi watershed, Sungai Betung sub district, Bengkayang Regency is included in the medium diversity category.  
Pengaruh Variasi Suhu Dan Waktu Inkubasi Terhadap Aktivitas Enzim Selulase Dari Bakteri Serratia marcescens Kurniawati, Laily; Kusdiyantini, Endang; Wijanarka, W
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.33-42

Abstract

Enzymes are biocatalysts in living cells when cells metabolize. All living organisms are produced enzymes, both humans, animals, plants and microorganisms. One of the bacteria that has the potential to produce cellulose (EC 3.2.1.4) enzymes is Serratia marcescens. These bacteria can be isolated from water, soil and digestive tract. This research aims to find out the types of enzymes produced by S. Marcescens, to examine the effect of temperature and incubation time on selected enzyme activity. The type of enzyme test was qualitatively determined by S. marcescens growth on the amylolytic, cellulolytic, pectinolytic and chitinolytic selective medium based on the clear zone. This research was used a Completely Randomized Design (CRD). The first factor was the incubation time (T) which were 4 hours (T4), 8 hours (T8) and 12 hours (T12). The second factor was the treatment of incubation temperature (S) which were 40oC (S1), 50oC (S2) and 60oC (S3). Each treatment was repeated in 3 times. The data were obtained then analyzed using Anova (α = 0.05). If it is significantly different, furthermore proceed with the T test (BNT). The results showed that S. marcescens qualitatively produced only clear zones in the cellulolytic medium of 5.1 mm. The ANOVA results showed that incubation temperature (S), the interaction between incubation time (T) and incubation temperature (S) were did not have effect on cellulase activity, whereas incubation time (T)  gives a significant effect on cellulase activity were obtained at the incubation time for 12 hours (T12) with a value of 0.27 U / mL
Aktivitas Enzimatis Biakan Kapang Aspergillus Section Nigri DUCC (Diponegoro University Culture Collection) Dan Identifikasi Molekuler Isolat Potensial Sabrini, Zalia; Rukmi, Isworo; Ferniah, Rejeki Siti
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.1-5

Abstract

The enzyme amylase, cellulase and protease are an extracellular enzymes are many produced by microorganisms such as fungi Aspergillus section Nigri. This research aims to find out the potential biakanes of Aspergillus section Nigri DUCC collection (Diponegoro University Culture Collection) which is capable to produce some enzymes that consists of amylase, protease and celullase and also identification in molecular based. Activity enzymatic assay of Aspergillus section Nigri with  semi-quantitative method using selective medium, CMC for cellulolytic, Starch agar 1% for amylolytic and Skim Milk agar for proteolytic. Biakane potential is determined by looking at the Enzymatic Index (EI) is highest for all of three enzyme. Molecular identification is using the universal primer ITS4 and ITS5. The results showed that the culture of DUCC K207  has high activity for all of three enzyme. Index enzymatic of isolate DUCC K207 , 1.55 mm for amylolytic, 1.49 mm for cellulolytic and 1, 24 mm for proteolytic. Result of molecular identification DUCC K207  known as Aspergillus niger that has 100% similarity with Aspergillus niger MH 109325.1.
Produksi Xilitol Menggunakan Hidrolisat Tongkol Jagung (Zea mays) Oleh Meyerozyma caribbica InaCC Y67 Faradila Ayu, Near Putri; Nurhayati, N; Thontowi, Ahmad; Kusdiyantini, Endang; Kanti, Atit; Hermiati, Euis
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.71-77

Abstract

Xylitol (C5H12O5) is a non-carcinogenic polyalcoholic sugar. Xylitol is beneficial for diabetics because it can be metabolized without insulin. Corn cobs contain 30% xylose which can be fermented into xylitol by microorganisms. Xylitol can be produced by fermentation of xylose and few microorganisms. Meyerozyma caribbica is a yeast that has been proven to produce xylitol and inhibitor’s resistant. The aim of this research is to test the xylitol productivity by Meyerozyma caribbica InaCC Y67 using corn cobs hydrolyzate and the effect of the volume of fermentation media on xylitol productivity by Meyerozyma caribbica InaCC Y67. The method was carried out by culturing Meyerozyma caribbica InaCC Y67 as a starter on YPD media.  Fermentation using 100 mL Erlenmeyer with the variation of fermentation volume is 10 ml and 75 ml, agitation 175 rpm and 30 oC. Parameters were measured based on the dry weight of cells, xylose and xylitol. Data were analyzed using fermentation kinetics. The results of analysis showed that the higher xylitol production was found in the fermentation volume 75 ml with an efficiency value of 7,171%. The highest xylitol production was at the 48th hour with production value of 2.050 g/L. Results from research shows that Meyerozyma caribbica InaCC Y67 can produce xylitol with corn cobs hydrolyzate. The right volume of fermentation in the fermentation process can also increase the productivity of xylitol.
Pemberian Naphthalene Acetic Acid (NAA) dan Kinetin Terhadap Multiplikasi Tunas Tanaman Jahe (Globba leucantha var. bicolor Holttum) pada Kultur In Vitro Mawaddah, Syerin Kusuma; Saputro, Nurcahyo Widyodaru; Lestari, Ani
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.43-50

Abstract

Globba leucantha var. bicolor Holttum is a part of Zingiberaceae plant that is not yet widely known but can be used as a medicinal material as well as an ornamental plant. So far Globba plant propagation has not been widely done and has relied solely on from its habitat. Research aims at acquiring Naphthalene Acetic Acid (NAA) concentrations and optimal kinetin for the multiplication of ginger plant shoots (Globba leucantha var. bicolor Holttum) on in vitro culture. The research method uses experimental methods with non-parametric statistics and 24 repeated treatments 3 times as well as being analyzed descriptively using the Kruskal Wallis Test. The treatment used NAA with concentrations of 0 mg/l, 0.1 mg/l, 0.5 mg/l, 1 mg/l, 1.5 mg/l, and 2 mg/l combined with Kinetin with concentrations of 0 mg/l, 0.1 mg/l, 1 mg/l and 10 mg/l. The results showed that the growth of Globba plant's best shoots at N3K3 treatment (NAA 1 mg/l + Kinetin 10 mg/l) with a shoot emergent time of 21.58 HSI, a percentage of shoot forming 66.67%, a shot count of 0.89 buds per explant, and a shoot length of 0.18 cm. Additionally at the same time also formed Globba plant roots with the best treatment of N5K2 (NAA 1 mg/l + Kinetin 10 mg/l) with a time of appearing rooted 25.67 HSI and a root count of 7.78 roots per explant.
Isolasi dan Karakterisasi Kapang Filoplan serta Serasah Daun di Lingkungan Laboratorium Biologi Universitas Diponegoro Dengan Metode Contact Plate Mahardika, Wahyu Aji; Dion, Romario; Qoys Naufal, Mochammad Fa’iq; Ramadhany, Warih; Lunggani, Arina Tri
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.6-10

Abstract

Fungi can be present on various substrates in the surrounding environment. The presence of these molds takes advantage of the nutrients that are attached to or contained in the substrate. The purpose of this study was to isolate and obtain various types of molds from various substrates. The method used in this study is a contact plate by attaching it to various objects or substrates, namely leaf litter, composter walls, tables, glass, and cabinets. The fungi obtained were 6 isolates, including those from the genus Aspergillus, Penicillium, Curvularia, and Alternaria,
Pengaruh Pemberian Teh Kombucha Konsentrasi 50% dengan Waktu Fermentasi yang Berbeda pada Struktur Histologi Hepar Tikus Wistar (Rattus norvegicus) Jantan Isdadiyanto, Sri; Tana, Silvana
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.51-56

Abstract

This study was conducted to determine the effect of 6 kombucha fermented tea (P1), 9 (P2) and 12 (P3) fermentation days at a concentration of 50% on the liver histological structure and hepatocyte diameter. This study used 16 male white rats consisting of 4 treatments and 4 replications. The treatment of this study consisted of P0: control treatment; P1, P2 and P3 respectively were given 6, 9 and 12 days fermented kombucha tea at a concentration of 50%. This research uses a completely randomized design. The variable measured in this study was the diameter of hepatocytes in test animals. The data obtained were analyzed using Analysis of Variance (ANOVA) at a 95% confidence level and if there were real differences, followed by Duncan's test. The results of data analysis showed that kombucha tea fermented 6, 9 and 12 days with a 50% concentration did not have a significant difference in hepatocyte diameter variables. The histological structure of the liver looks normal and shows no sign of cell damage. It can be concluded that kombucha tea at a concentration of 50% is safe for consumption by mammals because it does not cause liver damage.
Isolasi dan Potensi Enzim Hidrolase Bakteri Simbion Padina sp. dari Pantai Lengkuas Belitung Nur Jannah, Siti; Hanifa, Yumna Rahmadias; Utomo, Adi Budi; Dian Prambodo, Ashar Kurnia; Lunggani, Arina Tri
Bioma : Berkala Ilmiah Biologi Vol. 23, No 1, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.1.11-17

Abstract

Marine organism is one of the riches in the ocean of Indonesia. The benefits of sea use for new products produced are widely used and have high market demand. Enzymes that have marine interests have unique properties and have good benefits for industry. This study aims to isolate the bacteria that have symbionts with Padina sp and determine the potential of the enzyme hydrolase produced by these bacteria. Isolation is done by the spread plate method. Pure isolates obtained were then tested for the potential of the enzyme hydrolase on selective media. Clear zone measurements are performed to determine which bacterial isolates are good for enzyme production. The results obtained by 6 isolates of pure bacteria, all of which include Gram negative bacteria that form bacilli. All isolates had the ability to produce different Protease, Lipase, Amylase and Cellulase enzymes. The enzymes obtained from these symbiotic bacteria are expected to be used for industrial-scale production in Indonesia. In addition, the presence of this symbiont bacteria is able to reduce the level of exploitation of Padina sp and contribute to preserving the marine ecosystem.
Tingkat Serangan Grayak Spodoptera litura Pada Cabai Rawit (Capsicum frutescens) Dengan Pemberian Bakteri Lysinibacillus sphaericus Cahyamurti, Riza Afifah; Purwanto, Hari
Bioma : Berkala Ilmiah Biologi Vol. 23, No 2, Tahun 2021
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.23.2.149-158

Abstract

Indonesia is the fourth largest chili producer in the world. In 2017, chili (Capsicum frutescens) was ranked fifth as the largest seasonal vegetable commodity products. The productivity of chili cultivation in Indonesia is hampered by pests and diseases. One of the most common pests that attack chili plants is the armyworm Spodoptera litura (Lepidoptera: Noctuidae). Lysinibacillus sphaericus bacteria have the potential as Plant Growth Promoting Rhizobacteria (PGPR) as well as a bio control agent. This study aims to obtain L. sphaericus isolates that can increase the growth of chili and to determine the effect of L. sphaericus isolates which have the potential for PGPR on the growth of the armyworm feeding on the chili plants. The research method used is experimental research conducted at the Laboratory of Entomology and Sawitsari Research Station, Universitas Gadjah Mada. This study used three replicate by inoculating one millilitre per plant. The results obtained from testing the 105 isolates in the collection of the Faculty of Biology, Universitas Gadjah Mada showed that the isolates that can increase the growth of chili plant indicated with its plant height, were isolates A42, A49, A19, A5, and A38. While the results of plant with the highest number of leaves showed the isolates A49, A42, A19, A38, and A28 were the best among the isolates tested. Some L. sphaericus isolates could increase plant growth compared to the control, but not statistically significant. These bacteria by inoculating one mililitre to plant could not be used as a bio control agent in  S. litura because they did not have a significant different in leaf damage to the control.

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