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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Prosiding Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Biosaintifika: Journal of Biology & Biology Education Scripta Biologica Journal of Aquaculture and Fish Health BioEksakta : Jurnal Ilmiah Biologi Unsoed
Dwi Sunu Widyartini
Fakultas Biologi, Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Veterinary

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KEANEKARAGAMAN MORFOLOGI RUMPUT LAUT SARGASSUM DARI PANTAI PERMISAN CILACAP DAN POTENSI SUMBERDAYA ALGINATNYA UNTUK INDUSTRI Widyartini, Dwi Sunu; Insan, A. Ilalqisny; , Sulistyani
Prosiding Vol 3, No 1 (2012)
Publisher : Prosiding

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

Abstract

Sargassum merupakan rumput laut penghasil alginat. Alginat banyak dimanfaatkan dalam industri kosmetik, obat, farmasi, pangan dan cat. Terbukanya peluang untuk meningkatkan produksi alginat maka diperlukan data spesies rumput laut Sargassum dan kandungannya dalam upaya pengelolaan sumberdaya alginat berkelanjutan. Penelitian ini bertujuan untuk mendapatkan data keanekaragaman morfologi dan rendemen alginat rumput laut Sargassum di perairan Pantai Permisan Cilacap sehingga diketahui potensi alginat yang memenuhi standar ekspor untuk pengembangan spesies indigenous berkelanjutan. Penelitian menggunakan metode survai. Hasil penelitian keanekaragaman morfologi teridentifikasi 3 spesies Sargassum yaitu Sargassum duplicatum, S. polycystum dan S. cymosum. Produk alginat spesies-spesies Sargassum kandungannya berkisar 32,09-60,1% dengan mutu III dan viskositas ringan, memenuhi persyaratan bagi kebutuhan farmasi maupun industri makanan.
The Lipid Content of The Culture Microalgae Using Media of Tapioca Liquid Waste Insan, Achmad Ilalqisny; Christiani, Christiani; Hidayah, Hexa Apriliana; Widyartini, Dwi Sunu
Biosaintifika: Journal of Biology & Biology Education Vol 10, No 2 (2018): August 2018
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v10i2.12381

Abstract

Microalga Navicula sp., Spirulina platensis, and Chlorella vulgaris have the prospect of being a source of biofuel producers. Rapid cell growth, coupled with the ability to produce large lipids and less pollution, can be used as an alternative to biofuel development. Microalgae cultivation can utilize tapioca liquid waste. Addition of NaCl to regulate salinity, so optimum for microalgae growth. In addition it can reduce toxins by binding to dissolved cyanide acid present in the waste. This study aims to determine the effect of NaCl concentration on tapioca liquid waste on growth and lipid microalgae content. This study used an experimental method with a complete random factorial design. The first factor tested three species of microalgae. The second factor tested seven NaCl concentrations on tapioca liquid waste media. The results showed that the concentration of NaCl 35% in tapioca liquid waste culture media capable of producing biomass of C. vulgaris cells with the highest lipid content. The NaCl concentration capable of producing the highest microalgae biomass from the study can be developed to design more effective and efficient tapioca industrial waste treatment without damaging the environment but more productive, as a biofuel producer.
KELIMPAHAN CHRYSOPHYTA PADA MEDIA BUDIDAYA IKAN NILA YANG DIBERI PAKAN FERMENTASI DENGAN PENAMBAHAN TEPUNG KULIT UBI KAYU DAN PROBIOTIK Retno Ambarwati; Endang Widyastuti; Dwi Sunu Widyartini
Scripta Biologica Vol 1, No 1 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.284 KB) | DOI: 10.20884/1.sb.2014.1.1.28

Abstract

Chrysophyta is also known as golden-yellow algae because of the yellow dominant pigment of carotene and xanthophyll. This study aimed to determine species richness and abundance of Chrysophyta in the Tilapia culture media which was fed with the addition of cassava peel flour and probiotic. The method applied in this study was the experimental method with 4 treatments, i.e.: the use of fermented feed with the addition of cassava peel flour (0%, 25%, 50%, and 75%) and probiotic in Tilapia culture media. Each treatment was replicated 4 times. Sampling was carried out 6 times at intervals of 2 weeks. The observed parameters were the main parameters, i.e.: the number of Chrysophyta species and individuals; and supporting parameters, i.e.: water temperature, pH, TDS, TSS, NO3, NO2, BOD5, DO, and total of phosphate. Species richness and abundance of Chrysophyta data were analyzed using cluster analysis based on Bray-Curtis similarity coefficient. The analysis continued with Similarity Percentages (SIMPER) analysis to determine the contribution of species to the similarity index in each group or to dissimilarity index amongst groups. The results showed that the species richness found in the Tilapia media culture which was fed with the addition of cassava peel flour and probiotic consist of 20 species belonging to a class namely Bacillariophyceae. Abundance of Chrysophyta obtained was ranged from 5.160-13.292 individuals/liter. The cluster analysis showed that Chrysophyta amongst treatments have a quite high similarity level (> 50%) was ranged between 65.56% -83.99%. Contributions of species which contribute the highest similarity index were Diatoma vulgare (49.80%), Navicula brachysira (70.50%) and Navicula platystoma (82%).
STUDI KOMUNITAS RUMPUT LAUT PADA BERBAGAI SUBSTRAT DI PERAIRAN PANTAI PERMISAN KABUPATEN CILACAP Eti Ferawati; Dwi Sunu Widyartini; Ilalqisny Insan
Scripta Biologica Vol 1, No 1 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.577 KB) | DOI: 10.20884/1.sb.2014.1.1.25

Abstract

Seaweed naturally grows in substrate of sand, mixing between sand, mud and shell fragments, and also coral. Previous researches stated that there were types of seaweed that able to grow in more than one substrates. The aims of this research was to know the community structure such as diversity, domination, evenness, and similarity of seaweed on various substrates in Permisan beach, Central java. This research used survey method and samples were randomly selected for each substrate with quadrate of 1 x 1 m2. The research found that 20 kinds of seaweeds with biomass for about 4,669 g. Seven kinds of seaweed that grow in sand substrate with biomass for about 0,636 g, 20 kinds of seaweed in coral substrate with biomass for about 2,399 g, and 12 kinds of seaweeds in mixing substrate with biomass for about 1,634 g. Diversity index value in Permisan beach was ranging between 0,064-0,828 and categorized as low. Domination index value was ranging between 0,213-1,193, which means there was dominating variety. Evenness index value was ranging between 0,021-0,276, which means the community was unstable. The highest similarity index value was coral substrate-mixing for about 75%.
KELIMPAHAN CHLOROPHYTA PADA MEDIA BUDIDAYA IKAN NILA YANG DIBERI PAKAN FERMENTASI DENGAN PENAMBAHAN TEPUNG KULIT UBI KAYU DAN PROBIOTIK Heni Andriyani; Endang Widyastuti; Dwi Sunu Widyartini
Scripta Biologica Vol 1, No 1 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.316 KB) | DOI: 10.20884/1.sb.2014.1.1.26

Abstract

Chlorophyta is autotroph organisms which has an important role in fresh waters as one of the largest algae division. This study aimed to determine the abundance and similarity structure of Chlorophyta in Tilapia culture media which was given fermented feed with the addition of cassava peel flour and MEP+ probiotic. This study used four treatments with four replications: (A) fermented feed without addition of cassava peel flour or 0% and MEP+ probiotic administration in media, (B) 25%, (C) 50% and (D) 75%. Sampling was carried out 6 times at intervals of 2 weeks. The main parameters were the number of Chlorophyta species and individuals,while supporting parameters were physical (temperature and TDS) and chemical (DO, BOD, pH, NO3, NO2 and total of PO4). The abundance of Chlorophyta data were analyzed descriptively and its similarity structure were analyzed using Cluster analysis. Then, continued with SIMPER analysis to determine the contribution of species to abundance similarity with PRIMER-E v.5 software. Analysis results showed that the abundance of Chlorophyta consists of 33 species with the average number of 10.412 individuals/liter. Cluster analysis results based on Bray-Curtis similarity index had a quite high similarity and it ranged between 57.79% -68.84%. SIMPER analysis results showed that the species which given highest contribution were Kircheneriella lunaris (31,03%), Selenastrum sp. (21,69%), and Gonatozygon monotaenium (12,96%).
Growth and Lipid Profiles of Melosira sp. in response to Different Salinity Levels. Indyaswan Tegar Suryaningtyas; Sandi Permadi; Solikin; Jasmadi; Sherly Sapulete; Suparmo; Dwi Sunu Widyartini
Journal of Aquaculture and Fish Health Vol. 11 No. 2 (2022): JAFH Vol. 11 No. 2 June 2022
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v11i2.30388

Abstract

The Diatom of Melosira sp. is one of the potential microalgae candidates for future biofuel resource due to its high lipid profile and fatty acid content, high growth rate, and a quick deposition rate. Salinity stress is one of the environmental factors affecting the growth of microalgae and their lipid content. This research was conducted to identify the response of Melosira sp. treated with different salinity levels on the cell growth rate, biomass productivity, and lipid production.  The microalgae cells were incubated for 8 days in 1 liter of F/2 growth medium with different salinity levels from 10 ppt to 35 ppt. Cell’s growth, SGR, biomass, lipid, and water quality factors were measured during incubation. This study revealed that the growth pattern of Melosira sp. cells under various salinities was customarily similar. Observation in the 35 ppt salt presenting the biomass productivity was 711.04 ± 69.38 mg.L-1 with lipid productivity which was 60.49 ± 1.72 mg.L-1. On the other hand, the observation of the lowest salt concentration displaying the biomass productivity was 316.64 ± 16.66 mg.L-1  with the lipid productivity which was 41.46 ± 6.94 mg.L-1. Hence, the results demonstrated that the lower salinity stress in 10 ppt enabled significant cell’s lipid production than the higher salinity of Melosira sp. in F/2 medium. Furthermore, lipid productivity was uncorrelation with biomass production pattern. This information may be useful in optimizing Melosira sp. lipid performance as a supporting knowledge.
Kandungan Alginat Sargassum polycystum pada Metode Budidaya dan Umur Tanam berbeda Dwi Sunu Widyartini; A. Ilalqisny Insan; Sulistyani Sulistyani
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 2 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.2.303

Abstract

Sargassum polycystum is one of seaweed what be able to produce alginate. Cultivation development intensively use common cultivation  methods and planting age of growth season properly which can be able to produce good growth and highest alginate. This study is used an experimental method. The basic design used for the content of alginate S. polycystum use completely randomized design (CRD) with Split Plot Design which repeated 3 times. The main plot of this study is a method of cultivation are included by floatting method and bottom method and Subplot is age after planting are consist of 7, 14, 21 and 28 days. The cultivation result of S. polycystum by bottom method with 28 days, showed the highest growth rate about 17.38 g.day-1, while the lowest growth were founded on bottom method on age 7 days about 3.42 g.day-1. The Results of analysis of variance showed that the interaction of cultivation method and planting age have significant effect on the subtances of alginate from S. polycystum. The highest alginate are produced by bottom method of planting age on 28 days about 58.33%. The Lowest alginate are produced by floating and bottom methods of planting age on 7 days about 11.67%. Quality of alginate farmed bottom methods of color is more yellowish than the cultivation of the floating method.
Effect of Planting Media Modification on Seed Growth and Development of Three Mangroves Species from Jakarta and Kebumen, Indonesia Ardli, Erwin Riyanto; Hanifah, Wahdini; Prabowo, Romanus Edy; Nafis, Bayu Ashila; Widyartini, Dwi Sunu
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 2 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.2.285-292

Abstract

The rehabilitation of mangroves depends on the availability of high-quality, sufficiently prominent seeds. Currently, a lot of mangrove nursery activities continue to employ traditional techniques, which results in low-quality and slowly growing seedlings. The mangroves of Jakarta were selected because they represent a heavily polluted mangrove ecosystem on Java's northern coast, whereas the mangroves in Kebumen, on Java's southern coast, are in the opposite situation. This study proposed to find an approach to supply Indonesia's mangrove restoration projects with adequate seeds. An experimental approach with a complete randomized design and a factorial pattern was used. The variables tested were planting media and three kinds of mangroves: Rhizophora mucronata, Ceriops tagal, and Bruguiera gymnorrhiza. Mangroves from Jakarta are treated with mud, soil media, or a mix of them. A mixture of mud, husk, and husk charcoal is used for six treatments planting media for mangroves from Kebumen. The mangrove seedlings' growth, biomass, and chlorophyll content are the dependent variables. ANOVA was used to evaluate the data with a 95% confidence level, and Duncan's comparison of means test followed. The growth of mangrove seedlings was discovered to be impacted by media type, while the chlorophyll content, dry biomass of roots, stems, and leaves were not affected by this factor. Three species of mangroves differ regarding growth rate, biomass of roots, stems, and leaves, and chlorophyll content. In order to support Indonesia's efforts to rehabilitate mangroves, this research can offer understanding regarding how to select and employ the best media to effectively produce high-quality seeds.
KEANEKARAGAMAN DAN DOMINANSI RUMPUT LAUT HIDROKOLOID PADA SUBSTRAT YANG BERBEDA DI PERAIRAN PANTAI KARANGTENGAHNUSAKAMBANGAN CILACAP Ardiyanto, Bayu; Insan, Achmad Ilalqisny; Widyartini, Dwi Sunu
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.2999

Abstract

The waters of Karangtengah Nusakambangan Cilacap have various types of substrates, namely sand, coral and mixture. Beach conditions with many types of substrates allow various species of seaweed to grow. Information regarding the diversity and dominance of seaweed producing hydrocolloid species has not been much studied in the waters of Karangtengah Beach. This study aims to determine the diversity and dominance of seaweed producing hydrocolloids on different substrates in the waters of Karangtengah Nusakambangan Cilacap. This study uses a survey method with a sampling technique that is the selected random transect method. Six transect lines were made perpendicular to the coastline and the distance between transects was 25 m. Each transect was made three plots, each plot measuring 1x1 m based on the substrate (coral, sand, and mixture). The main parameters observed were the amount of biomass and the number of species. Supporting parameters observed were environmental factors namely temperature, salinity, pH, current speed and depth. The number of hydrocolloid seaweed species found was 10 species of seaweed with details of 5 alginate-producing species, 3 agar-producing species, and 2 carrageenan-producing species. The diversity index value in the coastal waters of Karangtengah between 0,6-2,0 was classified as moderate diversity. The dominance index value in the coastal waters of Karangtengah between 0,2-0,6 was classified as low dominance.
Komposisi Jenis dan Kepadatan Rumput Laut Hydrokoloid berdasarkan Karakteristik Dasar Perairan di Daerah Intertidal Nusakambangan Timur Cilacap Widyartini, Dwi Sunu; Insan, Achmad Ilalqisny; kamsinah, Kamsinah
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 4 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3568

Abstract

Rumput laut hidrokoloid merupakan rumput laut yang mengandung agar, karagenan dan alginat yang banyak digunakan sebagai bahan baku industri. Penelitian ini bertujuan untuk mengetahui komposisi jenis hidrokoloid rumput laut dan kepadatannya berdasarkan karakteristik perairan dasar di daerah intertidal Nusakambangan Cilacap Timur. Perairan Nusakambangan Timur memiliki pusat pantai koral dan pantai karang berlubang yang memiliki substrat berupa pasir, koral, batuan vulkanik, dan pecahan koral. Penelitian ini menggunakan metode survei dan pengambilan sampel menggunakan transek berupa garis tegak lurus pantai menuju laut, setiap transek garis ditempatkan dengan plot kuadran (1 x 1m2) yang dipilih secara acak pada substrat keras dan lunak. Hasil penelitian ini, substrat karang di kedua pantai diperoleh 2-8 jenis rumput laut hidrokoloid, dengan komposisi jenis rumput laut tertinggi 57,6% pada substrat keras dengan kepadatan tertinggi pada jenis Gracilaria gigas; 440.6-1239.7 g/m2, Gracilaria gigas memiliki tipe percabangan dikotomus dengan bentuk talus silinder. Pada substrat campuran di pesisir Karang Tengah terdapat 4 jenis rumput laut hidrokoloid dengan komposisi 46,3% spesies hidrokoloid dengan kepadatan tertinggi pada spesies Padina australis; 387,7 g/m2. Padina australis berbentuk talus tidak bercabang.
Co-Authors A. Ilalqisny Insan A. Ilalqisny Insan Ardiyanto, Bayu Ardli, Erwin Riyanto Christiani, Christiani Endang Widyastuti Eti Ferawati H. A. Ilalqisny Insan, H. A. Ilalqisny Hanifah, Wahdini Heni Andriyani Hexa Apriliana Hidayah Ilalqisny Insan Indyaswan Tegar Suryaningtyas Insan, Achmad Ilalqisny Insan, Achmad Ilalqisny Jasmadi Kamsinah Kamsinah Ms Warsinah, Ms Nafis, Bayu Ashila Retno Ambarwati Romanus Edy Prabowo Sandi Permadi Sarwanto Sarwanto Sherly Sapulete Solikin Sulistyani Sulistyani Sulistyani Suparmo