Publikasi Online Fakultas Biologi UNSOED (Universitas Jenderal Soedirman)
Not a member yet
384 research outputs found
Sort by
Karakterisasi, Aktivitas Antioksidan dan Komponen Bioaktif Bulu Babi (Diadema savignyi) dari Perairan Pantai Trikora Tiga Pulau Bintan
Full text linkSea urchin is one type of aquatic biota that comes from echinoderms phylum. Biota is very abundant along the beach Trikora Bintan Island. This study aims to characterize and analyze the antioxidant activity and bioactive components contained in the crude extract of hexan and methanol sea urchins. Based on the results of this study, this biota has yield shell, thorn, viscera and gonad that is 42.62%, 18.07%, 27.31% and 12%. The result of extract of crude extract of intact fur with methanol (UMeOH), whole with hexan (UHx), gonad with methanol (GMeOH) and gonad with hexan (GHx) obtained yield of 2.37%, 3.19%, 9.87% and 6.06%. result of bioactive component analysis got 5 kinds of bioactive among them alkaloid, steroid, flavonoid, saponin and phenol hidroquinon. Analysis of antioxidant activity of crude extract of pig bristle with DPPH method obtained results for UMeOH, UHx, GMeOH and GHx is 3003 ppm, 3508 ppm, 1485 ppm dan 1420 ppm
Kualitas Perairan Situ Lebakwangi, Bogor
Full text linkWater pollution that occurs due to various human activities in Situ Lebakwangi's cause of water quality decrease based on Government Regulation Number 82 of 2001 about Water Quality Criteria. The purpose of this research is to know the water quality of Situ Lebakwangi based on physical, chemical, and biological (coliform bacteria) factors. This research was conducted in Situ Lebakwangi, Bogor in January 2015. Physical factor parameters are temperature, dissolved oxygen (DO), pH, total dissolved solids (TDS), electrical conductivity (EC), five days of biological oxygen demand, brightness and light intensity. Research results show that the physical condition of Situ Lebakwangi is conformed with environmental quality standard class II.Temperature of Situ Lebakwangi range is 29,2-30,2 ˚C, DO 4,8-6,2 ppm, TDS 53,7-58,7 ppm, BOD5 1,6-3,1 ppm, EC 112-118 mS/cm, and pH 6,6-8,8. The measurement result shows that total bacteria exceed the environmental quality standard 1,0 x 103CFU/ml, except in the six-station. Pollutant bacteria E. coli was not found in the 6th station. All of the stations can not found pathogenic bacteria Salmonella sp. Coliform bacteria in five and six stations exceeds the environmental quality standard, which is 5,0 x 103. All observed physical factor parameters were in conformable with PP 82 of 2001 about Water Quality Criteria, but for biological parameters (total bacteria and total coliform) were not. Based on these results, aquatic of Situ Lebakwangi can not be used for water recreation facilities, freshwater fish cultivation, livestock, water to irrigate crops, and other uses that require the same water quality
Produktivitas Panen Propolis Mentah Lebah Trigona itama Cockerell (Hymenoptera: Apidae) Menggunakan Propolis Trap dan Manipulasi Lingkungan di Riau
Full text linkTrigona itama is one species of stingless honeybees that produce more propolis than genus Apis and commonly practiced in Riau. Nowadays, the value of raw propolis is very expensive. However, techniques and methods to obtain propolis from T. itama`s were usually conducted by destroying nests that resulted in declining development and caused absconding. The objectives of this study were (1) to know the effectivity of propolis trap on T. itama box hive and (2) to examine the best manipulation technique of vegetation rotations of nectareous, pollen, and resin plants to stimulate the formation of raw propolis. Factorial Randomized Completly Design with two factors (the type of box and nectareous plant rotation schedule) was used as experimental design. Results showed that there was no significant interaction between the rotation techniques of nectareous plants and the type of propolis traps on raw propolis production. Also, by using strimin wire either on the side or on the top of box hive as propolis trap had significant value (37.20 ± 1.38 gram and 34.97±0.80 gram respectively) compared to plastic mica either on the side or top side (14.77 ± 0.16 and 12.80 ± 0.64 gram respectively). Yet, there is no significant effect of nectareous plants` (Shorea sp.) duration on the production of raw propolis
Potensi Jus Buah Pepaya (Carica Papaya L.) Mencegah Nefrotoksisitas pada Tikus Wistar yang Terpapar Pb Asetat
Full text linkLead is a heavy metal with hazardous toxicity causing dysfunction, especially the kidneys as excretion organs. Pb pollution in Indonesia is mostly derived from transportation emissions such as Tetraetillead, which can change into trietillead, a free radical that can reduce endogenous enzyme activity, one of which is SOD pollution. (Superoxide dismutase) which is in various organs, especially the kidneys. A decrease in SOD activity in the kidneys indicates oxidative stress because the enzyme is unable against superoxide anions and causes renal glomerular damage. Kidney damage can increase serum creatinine levels. Papaya juice contains flavonoids, vitamins C, E, and beta-carotene can prevent nephrotoxicity of Pb. The study aimed to obtain the best dose of papaya juice on the SOD activity of Wistar rats kidney tissue and serum creatinine level that exposed by lead acetate. The experiment was conducted experimentally with Completely Randomized Design, which was divided into 6 treatments, P1, P2, P3, of papaya juice, Lead ace with dose: 3.6; 7.2; 14.4 g / 200g of weight and exposed to Pb acetate 50 mg/kg weight. Treatment P4 (rats were given vitamin E 400 IU/kg weight and exposure to Pb acetate 50 mg/kg weight), P5 (rat exposed Pb acetate 50 mg/kg weight), P6 (normal mice) for 28 days. The results showed that papaya juice was the best dose of 14.4 g / 200g weight because the SOD activity of renal tissue was increased, and serum creatinine level decreased significantly. The conclusion is papaya juice can be used to prevent Pb acetate nephrotoxicity
Tingkat Kesuburan Perairan pada Zona Litoral di Waduk Sei Pulai, Pulau Bintan, Kepulauan Riau
Full text linkSei Pulai Reservoir have been used as water supply for local communities in Tanjungpinang City and surrounding areas. The objective of this study was to determine trophic level in litoral zone of Sei Pulai Reservoir, Bintan Island. Samples were taken by purposive sampling method that represented inlet (Stations 1, 2, 3, 4, and 5); the middle of the reservoir (Station 6,7, 8); and outlet (Station 9 and 10). The data were analyzed by TLI (Trophic Level Index). The result of this study showed that the TLI index of inlet, middle, and outlet of Sei Pulai Reservoir were 3.62, 3.30, and 3.60 respectively. Litoral zone of Sei Pulai Reservoir were mesotrophic, with catagorized fair water quality (moderate amount of nutrient concentration and primary productivity). Water quality are quite good for drinking water.
Perbaikan Histopatologi Pankreas Tikus Hiperglikemia setelah Pemberian Ekstrak Etanol Kulit Batang Pakoba (Syzygium luzonense (Merr.) Merr.)
Full text linkPakoba as an endemic plant in North Sulawesi has ethnomedical benefits in treating diabetes. The purpose of this study was to determine the histopathological of pancreatic hyperglycemic rats induced by alloxan by the administration of pakoba stem bark ethanol extract (PSBEE). Rats with an average weight of 150-200 gr were divided into 5 treatment groups. Group I as a normal control without alloxan administration then group II alloxan control, group III were treated with glibenclamide 5 mg/kgbw, groups IV and V were treated with PSBEE 150 and 300 mg/kgbw oral gavage. Phytochemical screening results of PSBEE contain a lot of alkaloids, flavonoids, and tannins. A dose of 300 mg/kgbw PSBEE is better in repair pancreatic cells in hyperglycemia rats compared with a dose of 150 mg/kgbw. There needs further research to know the antioxidant activity, the mechanism of the active compound content of the pakoba stem bark as an antihyperglycemic
Modifikasi Pakan Buatan untuk Meningkatkan Pertumbuhan dan Kelangsungan Hidup Udang Windu (Penaeus monodon)
Full text linkNutrition for the growth of black tiger shrimp (Penaeus monodon), include protein, carbohydrate, fat, minerals and vitamins. One of the local raw materials that can be utilized is seaweed (Kappaphycus alvarezii) as an additional ingredient in making artificial feed. This study aims to determine the effect of artificial feeding mixed with seaweed meal on the growth and survival of tiger shrimp. This research is experimental with treatment A: Control, treatment B: 10 grams (seaweed flour), treatment C: 30 grams (seaweed flour), treatment D: 50 grams (seaweed flour) with 5 replications. Treatment D showed the highest growth rate of an average weight of 0.169 grams and an average length of 1.95 cm, the SR of each treatment did not differ significantly. The addition of seaweed flour gives a significant value to the growth of tiger prawns
Ekologi dan Keanekaragaman Flora di Pulau Enggano
Full text linkEnggano Island is one of the islands in Indonesia and is a human settlement. Enggano Island is geologically an ocean island and according to history, it has never joined the Sumatera island. Thus Enggano Island is estimated to have a unique ecosystem and endemic organisms. The purpose of this research is to study the ecology of Enggano Island and its diversity of flora. The method used is exploration, field survey, interview and literature study. The results of this study showed that Enggano Island has five ecosystems, consist of mangrove forest, coastal forest, riparian, forest, and freshwater swamp. Each ecosystem has a specific plant in accordance with the character of its habitat
Morfologi Jenis Tembelekan (Lantana camara L.) di Beberapa Wilayah Kepulauan Buton
Full text linkTembelekan (Lantana camara L.) is an upright or semi-climbing shrub with a distinctive odor which is native to tropical and sub-tropical regions. This plant has many variations. The purpose of this study was to determine the morphological diversity of tembelekan using field observation methods in Buton, Central Buton, and South Buton Districts. The characterization process was carried out at the Integrated Laboratory of the Muhammadiyah University of Buton. The results of the observations were analyzed qualitatively by comparing the characters between individuals. The results showed that there were two groups of tembelekan in the Buton Islands, namely the orange and pink flowering groups. The orange flowering group has ovate leaf shape, coarse-hairy leaf surface, acute leaf apice, acuminate leaf base, serrate leaf margin, longer leaf size than the pink group, sepal is almost identical in size, orange flower group has fewer corolla than pink flower group. While the pink flowering group has deltoid leaf shape, coarse-hairy leaf surface, acuminate leaf tip, acuminate leaf base, serrated leaf margin, different sepal sizes and magenta flower color. It can be concluded that the two groups of tembelekan have differences in leaf shape, leaf tip, leaf length, sepal size, number and color of the corolla
Analisis Vegetasi Pulau-Pulau Kecil di Kecamatan Sekotong, Kabupaten Lombok Barat, Nusa Tenggara Barat
Full text linkThe rise of tourism development has increased the exploitation of natural resources and the increasing pressure on the environment on small island groups in West Nusa Tenggara, some of which are Gili Nanggu, Gili Sudak, and Gili Tangkong. The lack of attention to natural resources environmental preservation of small islands that are vulnerable to environmental changes, the purpose of the study was to determine the structure, species abundance, and differences in vegetation conditions on these islands. The technique used in vegetation analysis was a purposive sampling method, with a sampling intensity of 5% of each island area. The data obtained in the form of frequency, density, dominance, diversity index, index of important values (IVI), index of evenness, and wealth index, as well as a comparison test. On these islands were found 22 plant species belong to 13 families. The diversity index (H’) of vegetation types in Gili Nanggu, Gili Sudak and Gili Tangkong showed low to moderate categories. Species richness (R1) show a low category. Evenness (E) shows high, medium to low. According to a different test, there was no significant difference between the vegetation conditions in Gili Nanggu, Gili Sudak and Gili Tangkong