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ANALISIS MODEL DINAMIK PERTUMBUHAN BIOMASSA RUMPUT LAUT GRACILLARIA VERRUCOSA Kartono., Kartono; Izzati, Munifatul; Sutimin., Sutimin; Insani, Dian
MATEMATIKA Vol 11, No 1 (2008): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

The models of growth seaweed Gracillaria biomass are constructed by examining the result observation of pattern  growth seaweed Gracillaria biomass in the field. Then, these result are presented by drawing graphic behavior of growth seaweed Gracillaria biomass. This graphic shows that behavior of growth form sigmoidal curve. According to some references the model of growth seaweed Gracillaria biomass is models of logistic growth with constant carrying capacity. The result of analysis show that the amount of biomass to reach maximum when the amount of seaweed Gracillaria biomass same to the carrying capacity.
Pengaruh Perendaman Perasan Daun Mimba (Azadirachta indica L.), Mengkudu (Morinda citrifolia L.), Daun Sambiloto (Andrographis paniculata) terhadap Keawetan Tahu Astuti, Tri; Izzati, Munifatul
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 18, No 1 (2010): Vol. XVIII, No. 1, Maret 2010
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.069 KB) | DOI: 10.14710/baf.v18i1.2591

Abstract

Tofu is the main protein source of Indonesian food. It is cheap but high quality of nutrition content. This food is usually preserved by toxic chemical, formalin. This experiment observed if natural product may be efficiently used as tofu natural preservation. Several leave extracts has been tested as tofu preservation. These are, mimba (Azadirachta indica L.), mengkudu (Morinda citrifolia L.), and sambiloto (Andrographis paniculata). All of these leave extracts has been known contain antibacterial compound. The aim of this research was to study the efficiency of these three leave extract for tofu preservation. Tofu were soaked at difference concentration of leave extracts of 50%, 25%, and 12,5%. As a result extract mimba is the most effective preservation for tofu. The most effective concentration for tofu preservation of mimba extract was 5%.
Makrobenthos Sebagai Indikator Tingkat Kesuburan Tambak Di Pantai Utara Jawa Tengah Muhammad, Fuad; Izzati, Munifatul; Mukid, Moch. Abdul
Bioma : Berkala Ilmiah Biologi Vol. 19, No. 1, Tahun 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.675 KB) | DOI: 10.14710/bioma.19.1.38-46

Abstract

Makrobenthos that live in the mangrove forest can be used to predict the role or contribution of mangrove ecosystems as a source of natural food for the environment. The aims of research to determine the structure, composition, abundance, diversity makrobenthos of the mangrove ecosystem. The study was conducted by comparing the community structure makrobenthos in pond ecosystem with mangrove vegetation constituent . The location of this study include three areas , Mangunharjo (Semarang), Surodadi (Demak) and  Pasarbangi (Rembang). The result can shows makrobentos species composition is dominated by gastropods ( 18 species) , Bivalvia ( 13 species ) , Polychaeta ( 3 types ) , and crustaceans ( 2 types ) . Cerithium and Littorina scabra is a type that has a high density of the mangrove ecosystem . There are differences in the abundance and diversity of plankton and makrobenthos at three study sites. In general Pasarbangi Coast has the highest abundance and diversity . Macrozoobenthos community structure in mangrove ecosystems that exist in the three study sites in a stable state , species diversity and distribution of the number of individuals of each type of uniform . Pasarbangi area with mangrove vegetation polyculture farms , have high primary productivity . This shows the level of primer productivity at the site is also high . Keywords: community structure, macrobenthos, pond ecosystem
Komposisi, Kemelimpahan dan Keanekaragaman Fitoplankton Danau Rawa Pening Kabupaten Semarang Samudra, Sesilia Rani; Soeprobowati, Tri Retnaningsih; Izzati, Munifatul
Bioma : Berkala Ilmiah Biologi Vol. 15, No.1, Tahun 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.106 KB) | DOI: 10.14710/bioma.15.1.6-13

Abstract

Rawa Pening is a semi natural lake which is utilized for hydro-electric power plant,  caged fish culture, irrigation, and tourism. It belongs to one of the fifteen lakes which receives national priority to be saved and preserved because of its very poor condition as a result of eutrophication, sedimentation and degraded water quality. Eutrophication of  Rawa  Pening comes from the Water Catchment Area,  originating from farms, animal husbandry, domestic and industrial waste around the lake, and also from the water body itself, that is from caged fish culture. The fertility criteria of the lake water can be determined on the basis of the abundance and variety of phytoplankton and the total phosphorus content. The aim of this research is to find out the water fertility criteria of Lake Rawa Pening based on the abundance and variety of  phytoplankton, and the phosphorus content. Research began in July 2012 on three stations. Station I is an area with fishcage culture;  Station II is an area without fishcage culture, and Station III is the river inlet or water catchment area. Each station consisted of three different sampling areas. The phytoplankton abundance at the station without  fishcage culture is higher  (19012 ind/l) than at the fishcage culture station (14356 ind/l)  as well as at the inlet station (11058 ind/l), but the diversity index at the no fishcage station is lowest (1.80)  compared to the fishcage culture station (2.32)  and the inlet station (2.05). The fertility criteria of Rawa Pening based on the phytoplankton abundance and P-total  of  its water is eutrophic  going  towards  hypereutrophic.   Keywords : Lake Rawa Pening, Phosphorus, Water Quality, Euthropication
Kemampuan Tumbuhan Typha Angustifolia Dalam Sistem Subsurface Flow Constructed Wetland Untuk Pengolahan Limbah Cair Industri Kerupuk (Studi Kasus Limbah Cair Sentra Industri Kerupuk Desa Kenanga Kecamatan Sindang Kabupaten Indramayu Jawa Barat) Abdulgani, Hamdani; Izzati, Munifatul; S, Sudarno
Bioma : Berkala Ilmiah Biologi Vol. 16, No.2, Tahun 2014
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.136 KB) | DOI: 10.14710/bioma.16.2.90-101

Abstract

Industrial crackers centers at Kenanga Village has been able to lift the local economy,but that has been polluting the surrounding surface water contamination caused by wastewater discharged directly without any treatment in advance so that the water is black and smells foul . Therefore, the need of alternative wastewater treatment and in the study conducted by the artificial wetlands (constructed wetland) system Sub - surface Flow vertical flow with Typha angustifolia plant and use a medium sized sand 1 mm - 5 mm were previously washed first with media thickness of 30 cm and then operated intermittently using a peristaltic pump 6 times a day with the design of constructed wetlands construction made of wood coated with plastic and reactor dimensions 90 cm x 45 cm x 50 cm . As for the control (no treatment) using use the bucket size diameter 40 cm and height of 20 cm. This study aims to determine the ability of Subsurface Flow Constructed Wetland with Typha angustifolia plants in lowering the concentration of TSS , BOD5 , COD , ammonia (NH3 – N) and sulfide (H2S) at 5,10 and 15 days of processing . The results showed a decrease in the concentration efficiency at consecutive time 5 , 10 and 15 days in Subsurface Flow Constructed wetland with Typha angustifolia for TSS 73,78%; 77,18%; 84,71%; BOD5 85,83%; 90,33%; 94,17%; COD 86,94%; 90,65%; 94,87%; Ammonia 76,07%; 84,25%; 87,52%; sulfide 94,56%; 99,18%; 99,81 %.
Efek Metode Pengeringan Terhadap Kandungan Bahan Kimia Dalam Rumput Laut Sargassumpolycystum Masduqi, Ahmad Fuad; Izzati, Munifatul; Prihastanti, Erma
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 22, No 1 (2014): Volume XXII, NOMOR 1, MARET 2014
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.147 KB) | DOI: 10.14710/baf.v22i1.7804

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Sargassum polycystum as a seaweed that contains several chemical. Chemical in Sargassum polycystum is potential to be exploited and developed. Post harvest handling of Sargassum polycystum is very important, especially in drying method. Drying method will affect the chemical contentin Sargassum polycystum. The aims of this research is to study the effect of drying methods to the chemical in Sargassum polycystum. This research is conducted in the Biology laboratory, department of Biology faculty of Sains and Mathematics Diponegoro University. This research was designed by random complete design. The research was the methods of drying (under the sun, using the oven and wind drying), each treatment were replicated 3 times. The resulted data was analized by Analysis of Variance (ANOVA) continued by real difference test Duncan Multiple Range Test (DMRT) in 95% significance level. The parameters in this research were the content of total phenols, alginate, proximate (ash content, water, fat, crude protein and crude fiber). Beside that, the effectivity of Sargassum polycystum flour for fish presertative were also examined by calcuting the number of bacteria and organoleptic parameters, including the freshness, durability and fish performance. The result showed that drying methods affect the content of total phenols, alginate and proximate of Sargassum polycystum. Wind drying method is the most efficient drying in getting the phenolic compounds (at 1656.3ppm).
Potensi Tepung Umbi Dahlia Dan Ekstrak Inulin Dahlia Sebagai Sumber Karbon Dalam Produksi Fruktooligosakarida (FOS) Oleh Khamir Kluyveromyces marxianus DUCC-Y-003 Yuliana, Rida; Kusdiyantini, Endang; Izzati, Munifatul
Bioma : Berkala Ilmiah Biologi Vol. 16, No.1, Tahun 2014
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.155 KB) | DOI: 10.14710/bioma.16.1.39-49

Abstract

Penelitian ini bertujuan untuk mengeksplorasi manfaat umbi dahlia dalam bentuk tepung umbi dan ekstrak inulin sebagai substrat untuk memproduksi FOS. Produksi FOS berlangsung secara mikrobial enzimatis dengan bantuan khamir Kluyveromyces marxianus DUCC-Y-003. Pengkulturan khamir pada media kultur berlangsung selama 60 jam dan dilakukan pengukuran tiap 6 jam. Pengukuran tersebut meliputi pertumbuhan khamir, kadar fruktosa medium dan kadar total gula medium. Penentuan FOS dilakukan dengan cara mengukur nilai derajat polimerisasi (DP). DP merupakan hasil perbandingan antara kadar total gula dengan kadar fruktosa pada media kultur. DP FOS berkisar antara 2-10 dan FOS komersil dengan DP 3-5. Penelitian menggunakan Rancangan Acak Kelompok Faktorial (RAKF). Perlakuan terdiri atas S1D1 (substrat tepung, dosis 1 g), S1D2 (tepung, 3 g), S1D3 (tepung, 5 g), S2D1 (ekstrak inulin, 1 g), S2D2 (ekstrak inulin, 3 g), S2D3 (ekstrak inulin, 5 g). Hasil penelitian menunjukkan bahwa pertumbuhan khamir tertinggi pada perlakuan penggunaan ekstrak inulin dengan dosis 1 gram, dan pertumbuhan terendah pada perlakuan penggunaan tepung dengan dosis 5 gram. Pada masing-masing perlakuan, menghasilkan produk FOS dengan nilai DP yang beragam selama waktu inkubasi 60 jam, hanya perlakuan S2D1 (ekstrak inulin, 1g) yang sudah menghasilkan ketiga jenis FOS komersil dalam waktu inkubasi 60 jam. Pada perlakuan S2D1, produk 1-kestosa dihasilkan saat inkubasi 42 jam, produk nystosa saat 48 jam dan produk fruktofurasylnystosa saat 60 jam. Kesimpulan hasil penelitian adalah perlakuan S2D1 paling efektif dalam menghasilkan FOS selama waktu inkubasi 60 jam, sedangkan perlakuan lain dapat menghasilkan FOS yang sama jika lama waktu inkubasi diperpanjang.   Kata kunci : inulin, inulinase, derajat polimerisasi, Kluyveromyces marxianus DUCC-Y-0003
Kandungan Klorofil, Karotenoid, dan Vitamin C pada Beberapa Spesies Tumbuhan Akuatik Kurniawan, Madha; Izzati, Munifatul; Nurchayati, Yulita
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 18, No 1 (2010): Vol. XVIII, No. 1, Maret 2010
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (684.593 KB) | DOI: 10.14710/baf.v18i1.2614

Abstract

Aquatic plants have important role in water ecosystem. They serve as the main producer, oxygen suplier and heavy metal absorbtion. Beside that, aquatic plants also economically potencial, such as sources of chlorophyll, carotenoid and vitamin C. The aim of this experiment is to analize the content of total chlorophyll, carotenoids and vitamin C in 13 species of aquatic plants. It is expected that these plants maybe used for commercial purposes. The plants were collected from Rawa Pening, Genuk stream, and brackish water shrim pond in Kendal and Jepara. These chemical analysis were done by spectrophotometer, whereas vitamin C content was measured using iodometric titration method. Results indicated that the highest content of chlorophyl was resulted by Ipomoea aquatica, which is 22,1 mg/L. The highest content of carotenodid and vitamin C is resulted by Nymphaea sp., which were 3,42 mg/L and 14,1 mg/30 g respectively. It is concluded that Ipomoea aquatica and Nymphaea sp. have good commercial value as sources of pigment and vitamin C.
PERBEDAAN KANDUNGAN BAHAN ORGANIK PADA TAHAH PASIR DAN TANAH LIAT SETELAH PENAMBAHAN PEMBENAH TANAH DARI BAHAN DASAR TUMBUHAN AKUATIK Izzati, Munifatul
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 23, No 2 (2015): Volume XXIII, Nomor 2, Oktober 2015
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (538.547 KB) | DOI: 10.14710/baf.v23i2.9995

Abstract

Organic matter in the soil is a key factor in determining soil fertility. Addition of soil conditioner is the best way to provide organic matter in the soil. The aim of this study is to analyze the effect of aquatic plants as source of soil conditioner on organic contain of sandy and clay soil. This study analyze as much as 17 species of aquatic plants either from fresh water, brackish water and marine plants. Results indicated that addition of soil conditioner from aquatic plants significantly increased organic contain either in sandy or clay soil (p<0,05). In sandy soil, the highest organic contain (917%) was provided by brackish water plants, Najas marina, whereas in Clay soil was provided by marine plant, Gracilaria verrucosa (220%) Keywords: Soil conditioner, aquatic plant, sandy, clay soil
POTENSI DAN EFISIENSI SENYAWA HIDROKOLOID NABATI SEBAGAI BAHAN PENUNDA PEMATANGAN BUAH Roiyana, Munirotun; Izzati, Munifatul; Prihastanti, Erma
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 20, No 2 (2012): VOL XX, NOMOR 2, TAHUN 2012
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.29 KB) | DOI: 10.14710/baf.v20i2.4771

Abstract

Sebagian besar buah yang dimakan adalah buah yang telah mencapai tingkat kematangan. Buah-buahan dikenal sebagai hasil pertanian yang mudah rusak (busuk). Hal ini disebabkan karena komoditi hortikultura tersebut setelah dipanen masih terus melangsungkan respirasi dan metabolisme. Aktivitas respirasi dan transpirasi ini menggunakan dan merombak zat-zat nutrisi yang ada pada buah, sehingga dalam jangka waktu tertentu akibat penggunaan dan perombakan zat nutrisi tersebut, buah mengalami kemunduran mutu dan kerusakan fisiologis. Salah satu cara untuk memperpanjang masa simpan dan mempertahankan kesegaran buah-buahan adalah dengan teknologi pelapisan. Pelapisan dapat menggunakan tanaman penghasil senyawa hidrokoloid, misalnya cincau dan rumput laut. Hidrokoloid merupakan polimer larut air, mempunyai kemampuan mengentalkan atau membentuk sistem gel encer. Penelitian ini bertujuan menganalisis potensi senyawa hidrokoloid nabati yang dihasilkan dari gel cincau Stephania hernandifolia dan gel rumput laut Eucheuma sp. sebagai penunda pematangan buah serta membandingkan efisiensi senyawa hidrokoloid tersebut dalam menunda pematangan buah. Penelitian ini dilaksanakan pada bulan Maret sampai Juli 2012, di Laboratorium BSF Tumbuhan, FSM Undip Semarang. Variabel penelitian ini adalah susut bobot, perubahan warna, dan kekerasan tekstur. Penelitian dirancang dengan menggunakan Rancangan Acak Lengkap (RAL) faktor tunggal dengan perlakuan jenis hidrokoloid pada konsentrasi yang berbeda. hidrokoloid cincau S. hernandifolia konsentrasi 2,5%, 5%, 7,5% dan gel hidrokoloid Euchema sp. konsentrasi 1,5%, 2%, 2,5. Masing-masing perlakuan dengan 3 ulangan. Data yang diperoleh dianalisis dengan menggunakan ANOVA dan Duncan. Hasil penelitian menunjukkan bahwa gel rumput laut Eucheuma sp.dan gel cincau S. hernandifolia berpotensi sebagai bahan penunda pematangan buah. Gel rumput laut Euchema sp. lebih efisien digunakan sebagai penunda pematangan buah ditinjau perubahan warna selama penyimpanan.
Co-Authors Ahmad Fuad Masduqi Andi Kusumo Andriana Hesti Kusuma Atia Nadira Lumban Tobing Atika Oktavianti Atikah Rahmah Ayu Wulandari Azis Nur Bambang Dewi Kartika Rahmawati Diwyacitta Prasasti Eko Wahono Endah Dwi Hastuti Endang Kusdiyantini Endang Saptiningsih Erma Prihastanti Erwin Nofiyanto Florensia Setyaningsih Purnamawat, Florensia Setyaningsih Fuad Muhammad Gian Aprilia Ramadhani Hamdani Abdulgani, Hamdani Hena Rya Sunoko Hena Rya Sunoko, Hena Rya Hida Kumalawati Ign Budi Hendrarto, Ign Budi Iis - Su&#039;aidah Iis Marlina, Iis Insani, Dian Ita Novita Sari Jefri Saputro Johan Setiabudi, Johan Jumari - Jumriah Nur, Jumriah Kartono., Kartono Kismartini Kismartini Luaeliyah, Masrukhatul Lumban Tobing, Atia Nadira Madha Kurniawan Mawar Puspitaningrum Moch. Abdul Mukid Monica Dewi Sisca Muhammad Faisol Hakim Muhammad Ghozy Nailan Naja Muhammad Khusni Hidayat Munirotun Roiyana Nadya Aulia Azhari NIDA, KHOIRIN Nikola Fibrian F Nikola Fibrian F, Nikola Fibrian Nintya Setiari Nurdiana Riska Partiyani Hidayah Purna Sulastya Putra Purna Sulastya Putra Rasyid Abdulaziz Retno Indahwati, Retno Rida Yuliana, Rida Rini Verary Shanthi Robi’atul Asifah Sarjana Parman Septriono Hari Nugroho Septriono Hari Nugroho Sesilia Rani Samudra, Sesilia Rani Setia Budi Sasongko Sri Darmanti Sri Haryanti Sri Haryanti Sri Puatin Sri Widodo Agung Suedy Sudarno S, Sudarno Sudarno Sudarno Sugiyatno Sugiyatno Suksesi Wicahyani, Suksesi Sutimin., Sutimin Syafrida, Mulia Tia Bela Aprilliana Titik Dwi Lidiyanti Tri Astuti Tri Retnaningsih Soeprobowati Tri Retnaningsih Soeprobowati Umarudin U, Umarudin Veronika Veronika Wildan Suyuti Mustofa Wildan Suyuti Mustofa Marthana Woro Sri Aryanti Yanty Yosephin Yulita Nurchayati