Publikasi Online Fakultas Biologi UNSOED (Universitas Jenderal Soedirman)
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SKIRINING FITOKIMIA DAN UJI ANTIAGREGASI PLATELET EKSTRAK DAUN LAMPENI (Ardisia humilis) ASAL PULAU PEUCANG TAMAN NASIONAL UJUNG KULON
No full textLampeni (Ardisia humilis) is a plant that can be found in Peucang Island, Ujung Kulon National Park. Lampeni are used as medicinal plants because they can produce secondary metabolites. The purpose of this study was to determine the phytochemical content and antiaggregation platelets potential of lampeni leaf. This research was conducted in September-October 2018 on Peucang Island and UNJ Biochemistry Laboratory. The phytochemical content of the lampeni leaf was in the form of alkaloids, flavonoids, terpenoids, saponins and tannins and platelet aggregation test using the Pimentel method. Lampeni leaf extract was made using simplicia and solvent which is 1:10 (w/v) with 70% ethanol solvent. The results of the phytochemicals content test on the lampeni leaf contain alkaloids, flavonoids, terpenoids and saponins but do not contain tannins. The results of platelet aggregation test showed there was no formation of violet gel which indicated that platelet aggregation did not occur so that the lampeni leaf had the ability as an anti-aggregate platelet
BAY-LEAVES (SYZYGIUM POLYANTHUM) EXTRACTS PREVENTED THE DECREASE OF SPATIAL MEMORY IN MALE BALB/C MICE (MUS MUSCULUS) WITH BRAIN AGING
No full textAbstraCTIntroduction: Memory impairment is one of the symptoms of aging process which can be caused by either free radicals or oxidative stress. Antioxidants such as flavonoids are compounds that can inhibit reactive oxygen species (ROS). Bay-Leaves (Syzygium polyanthum) is one of the natural compound that contains high flavonoids. The purpose of this study was to prove that Bay-Leaves (Syzygium polyanthum) extracts prevent spatial memory impairment in male Balb/c mice (Mus musculus) with brain aging.Methods: This study was a true experimental study with randomized pretest-posttest control group design. The experimental animals were 14 mice, which were divided into two groups (7 each group). Mice that were included in this study were healthy (active and willing to eat), weighing 20-22 grams, 3-month-old With oral D-galactose (300mg/kgBW/day)induced brain aging for 28 days. The control group was treated a placebo (2 ml of aquabidest), and the treatment group was treated with oral Bay-leaves extracts at a dose of 5.25 mg/kgBW/day. Spatial memory was examined using the Morris Water Maze method using Probe Test to assess spatial memory retention and the Number of Platform Crossing Test. The examinations were done before (pretest) and after treatment (posttest) with placebo and Bay-leaves extract for 28 days.Results: The results showed that in the Probe Test, before the treatment (pretest) in the control and treatment groups there were no differences (69.94 ± 4.46% vs 69.42 ± 4.30%; p = 0.831), but after treatment during 28 days (posttest), the mean of the Probe Test between groups was significantly different (52.02 ± 7.46% vs 66.08 ± 3.72%; p = 0.001). In the Number of Platform Crossings, before the treatment (pretest) there was no difference in the Number of Platform Crossings (6.92 ± 0.640 times vs. 7.10 ± 0.748 times; p = 0.640), but after treatment for 28 days (posttest), the mean Number of Platform Crossings between groups was significantly different (4.67 ± 0.590 times vs 6.46 ± 0.809 times; p <0.001). For intergroup tests, the Probe Test in the control group decreased significantly (from 69.94 ± 4.46% to 52.02 ± 7.46%; p = 0.001), whereas in the treatment group there was no decreased (69.42 ± 4.30% to 66.08 ± 3.72%; p = 0.060). In the Number of Platform Crossings test, there was a significant decrease in the control group (6.92 ± 0.640 to 4.67 ± 0.590, p = <0.001), whereas in the treatment group there was no decreased (7.10 ± 0.748 to 6.46 ± 0.809, p = 0.070).Conclusion: Based on the results of this study, it can be concluded that Bay-Leaves (Syzygium polyanthum) extracts prevented the decrease of spatial memory in male Balb/c mice (Mus musculus) with brain aging
Inventarisasi Keanekaragaman Bambu (Bambusoideae) di Pulau Rupat, Kecamatan Rupat, Kabupaten Bengkalis
No full textPulau Rupat adalah pulau kecil di wilayah Sumatra yang memiliki keanekaragaman hayati tinggi. Salah satu flora di Pulau Rupat adalah bambu. Bambu memiliki kemampuan beradaptasi tinggi terhadap kondisi asam pada lahan gambut, tetapi informasi tentang spesies bambu di Pulau Rupat belum pernah dilaporkan. Tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman spesies dengan mengidentifikasi dan memeriksa berdasarkan kunci identifikasi karakter morfologi. Metode penelitian yang digunakan adalah survey eksploratif. Hasil inventarisasi mengidentifikasi total sembilan spesies dari empat genus (Bambusa vulgaris, Bambusa vulgaris var. striata, Bambusa heterostachya, Bambusa multiplex, Gigantochloa sp., Gigantochloa cf. velutina, Gigantochloa hasskarliana, Schizostachyum brachycladum, Schizostachyum zollingeri, Thyrsostachys siaminensis). Sebanyak sepuluh aksesi bambu diamati karakter vegetatifnya. Hasil skoring 53 karakter tersebut dianalisis menggunakan program NTSYSPC 2.02 untuk mengetahui pengelompokkannya. Hasil penelitian menunjukkan koefisien kemiripan berkisar 48%-77%
PREFERENSI LEBAH Tetragonula laeviceps TERHADAP TANAMAN SUMBER PAKAN PADA LAHAN PERTANIAN
No full textPengetahuan tentang aspek tanaman penyedia makanan (bee forage) diperlukan dalam budidaya lebah Tetragonula laeviceps untuk memperoleh hasil yang maksimal, salah satunya adalah apakah bunga di sekitar sarang merupakan pilihan utama bagi lebah. Tujuan penelitian ini untuk mengetahui (1) preferensi lebah T. laeviceps terhadap tanaman pertanian yang menjadi sumber pakan; (2) morfologi bunga dan polen tanaman pertanian yang menjadi sumber pakan; (3) pengaruh faktor lingkungan (suhu, kelembaban, intensitas cahaya) terhadap frekuensi kunjungan lebah T. laeviceps pada tanaman sumber pakan. Metode yang digunakan adalah survei dengan teknik scan sampling untuk menentukan sampel dan continuous recording dalam melakukan pencatatan data. Data frekuensi kunjungan T. laeviceps dianalisis secara deskriptif kuantitatif, data karakteristik morfologi serbuk sari dianalisis secara deskriptif kualitatif, dan data pengaruh faktor lingkungan terhadap frekuensi kunjungan lebah dianalisis dengan uji regresi linear berganda. Hasil penelitian menunjukkan bahwa lebah T. laeviceps lebih menyukai tanaman sawi (360 kali kunjungan) dari pada tanaman buncis (tidak ada kunjungan) sebagai sumber pakan. Tanaman sawi (Brassica rapa) memiliki tipe bunga aktinomorf berukuran 15,9mm, berwarna kuning terang, dengan putik dan benang sari yang terbuka. Serbuk sarinya berukuran 7μm. Tanaman buncis (Phaseolus vulgaris) memiliki tipe bunga zigomorf berukuran 1,3cm, berwarna ungu pucat dengan putik dan benang sari yang tertutup. Serbuk sarinya berukuran 35μm. Faktor lingkungan tidak menunjukkan adanya pengaruh yang signifikan terhadap frekuensi kunjungan lebah T. laeviceps pada tanaman sawi baik secara simultan (0,511) maupun terpisah (suhu=0,535; intensitas cahaya=0,217, dan kelembaban=0,581)
MORPHOMETRIC OF THE REPRODUCTIVE ORGAN OF FEMALE BANDICOOT-THE COMMON ECHYMIPERA (Echymipera calubu)
No full textA study was conducted at the Laboratory Animal Physiology and Reproduction Laboratory, Faculty of Animal Science Universitas Papua between 15 June and 15 September 2017. Three female reproductive organs of bandicoot (Echymipera kalubu) were used, and the morphology of the reproductive organ was examined. This paper presents relevant data for further marsupial reproduction studies
Kepadatan, Pola Distribusi dan Pola Pertumbuhan Udang Putih (Penaeus merguiensis de Man) di Perairan Estuari Margasatwa Karang Gading
Full text linkAbstractResearch on the density, distributionpattern and growth pattern of White Shrimp (Penaeus merguiensis de Man) in the Estuary Waters of the Karang Gading Wildlife Reserve, Deli Serdang Regency was carried out from June to August 2021. White shrimp samples were carried out for three days at three stations with the same time for 2 days. month of observation. The sampling point was determined by using the purposive sampling method. Samples were taken with a mini purse seine and the water physicochemical factors were identified at the Agricultural Laboratory of the University of North Sumatra. The results showed that the density of white shrimp was 4.50 ind/m2-7.33 ind/m2 with the highest density value found at station I of 7.33 ind/m2 and the lowest was 4.50 ind/m2, the distribution pattern of white shrimp with the range of I d 3.06-3.18 refers to grouping criteria, the growth pattern of white shrimp is allometric (-) with b 2.201 (I), 2.686 (II), 2.722 (III), the value of substrate fraction at station I (sand 24, 5%, 40% silt, 35.5% clay, dusty clay substrate type), station II (41.5% sand, 44% silt, 14.5 clay, clay substrate type), station III (43% sand, silt 28%, 29% clay, sandy loam substrate type). While the relationship of density with water chemistry factors obtained temperature, brightness, depth, current velocity, dissolved oxygen, BOD5, DO and phosphate to the density index of white shrimp obtained in the opposite direction of correlation (-), and the direction of correlation in the direction of (+) pH, salinity, and nitrate.Key words: Density, distribution pattern, growth pattern, substrate fraction, water physicochemical factors AbstrakPenelitian mengenai kepadatan, pola distribusi dan pola pertumbuhan Udang Putih (Penaeus merguiensis de Man) di Perairan Estuari Suaka Margasatwa Karang Gading Kabupaten Deli Serdang telah dilakukan pada bulan Juni hingga Agustus 2021. Sampel udang putih dillakukan tiga hari pada tiga stasiun dengan waktu yang sama selama 2 bulan pengamatan . Titik pengambilan sampel ditentukan dengan menggunakan metode Purposive sampling. Sampel diambil dengan pukat cincin mini dan faktor fisika kimia air diidentifikasi dilakukan di Laboratorium Pertanian Universitas Sumatera Utara. Hasil penelitian didapatkan kepadatan udang putih sebesar 4,50 ind/m2-7,33 ind/m2 dengan nilai kepadatan tertinggi terdapat pada stasiun I sebesar 7,33 ind/m2 dan terendah sebesar 4,50 ind/m2, pola distribusi udang putih dengan kisaran Id 3,06-3,18 mengacu pada kriteria berkelompok, pola pertumbuhan udang putih bersifat allometrik (-) dengan b 2,201 (I), 2,686 (II), 2,722 (III), nilai fraksi substrat pada staisun I (pasir 24,5%, debu 40%, liat 35,5%, tipe substrat lempung berdebu), stasiun II (pasir 41,5%, debu 44%, liat 14,5, tipe substrat lempung), stasiun III (pasir 43%, debu 28%, liat 29%, tipe substrat lempung berpasir). Sedangkan hubungan kepadatan dengan faktor-kimia air didapatkan suhu, kecerahan, kedalaman, kecepatan arus, oksigen terlarut, BOD5, DO dan fosfat terhadap indeks kepadatan udang putih didapatkan arah korelasi berlawanan (-), dan arah korelasi searah (+) pH, salinitas, dan nitrat.Kata kunci : Kepadatan, pola distribusi, pola pertumbuhan, fraksi substrat, faktor fisik kimia ai
POTENSI DAN KEKAYAAN Ficus spp. PADA ZONA REHABILITASI BLOK PASIRBATANG DI TAMAN NASIONAL GUNUNG CIREMAI KABUPATEN KUNINGAN
No full textThe Pasirbatang rehabilitation zone is part of the Ciremai Mountain National Park (TNGC) which is on the south side has experienced degradation. Therefore, planting was carried out in this zone with local species in 2014. The purpose of this study was to determine the vegetation structure and richness of the Ficus clan in the rehabilitation zone. This research was conducted in July-September 2018 with the method of placing the sampling plot on the specified path. A total of 31 species were found at various levels of growth with the Important Value Index (IVI) at the tree level (192.12%) in the form of Pinus merkusii, pole level (66.38%) in the form of Nauclea lanceolata, sapling level (141.72%) and seedlings (148.69%) in the form of Caliandra callothyrsus. Potential of Ficus spp is spread in various growth rates, namely species of F. septica, F. ampelas, F. variegata and F. fistulosa with the highest density at seedling level (166 ind / ha), and followed by sapling levels (64 ind / ha), poles (16 ind / ha) and trees (0.67 ind / ha). This Ficus wealth is considered important for the zone rehabilitation program in the Mount Ciremai National Par
Implikasi Pemanfaatan Lahan terhadap Tingkat Keanekaragaman Jenis Tanaman di Kawasan Kabupaten Kuningan Jawa Barat
Full text linkThe plant diversity has become of one indicated maintained, preserved and it has impact to environmental quality, and of course has value to human wellbeing dimension, which it has used to a demand of living the human. Beside of plant diversity has key a role of important in preserving of natural system condition by sustainable. Therefore aim this study to know how the plant diversity (H’), therefor methods which is used to vegetation analyses, by the plotting of sample area is 20x20 m, which are 3 subdistrict in Kuningan district area as representative of research samples methods. This result of research has inventories at least ±43 plants species in all area research, in which every area has had difference of index plant diversity level, in which Kadugede subdistrict area has highest level, than one the other subdistrict area, which is value H’= 2.30, and the lower of diversity index value is Cimahi H’= 1.49 and Ciawegebang H’= 1.14 level. Preserving and maintaining of plant diversity is one of all ways or strategies to increasing of quality ecosystem or carrying capacity and its conservation goals of sustainable developing in urban or rural area
Pertumbuhan Lamun Enhalus acoroides pada Berbagai Kondisi Lingkungan di Perairan Pulau Penyengat, Kepulauan Riau
Full text linkPenelitian ini bertujuan untuk mengetahui kualitas perairan serta tingkat kerapatan dan laju pertumbuhan daun lamun Enhalus acoroides di perairan Pulau Penyengat Provinsi Kepulauan Riau. Penelitian ini dilaksanakan pada bulan Februari–Maret 2019 di perairan Pulau Penyengat. Penentuan stasiun penelitian berdasarkan metode purposive sampling. Sebanyak 5 stasiun pengambilan sampel yaitu: wilayah yang dekat dengan pelabuhan, pemukiman penduduk, pembangunan taman di wilayah pesisir (reklamasi), ekosistem mangrove dan tempat pembuangan sampah sementara (TPSS). Pengamatan laju pertumbuhan daun lamun melalui metode penandaan pada daun yang muda dan tidak rusak menggunakan kabel ties disetiap titik pada tiap stasiun. Pengamatan pertumbuhan daun selama 30 hari dengan interval waktu 15 hari sekali. Hasil penelitian yang diperoleh yaitu kualitas perairan di Pulau Penyengat memenuhi baku mutu kecuali pada nitrat dan fosfat. Nilai kerapatan lamun E. acoroides tertinggi berada pada tempat pembuangan sampah sementara (TPSS) sebesar 50,33 ind/m². Laju pertumbuhan tertinggi setelah 30 hari pada daun lamun E. acoroides yaitu pada wilayah yang dekat dengan pelabuhan sebesar 5,74 mm/hari.
Hymenoptera Parasitoid dan Persentase Parasitasi terhadap Berbagai Ulat Pemakan Daun Kelapa Sawit di Kebun Cikasungka PTPN VIII, Cindali, Bogor
Full text linkPalm oil is one of the plantation commodities in Indonesia and had widespread in Indonesia. One of pests that attack oil palm is insect, and the most damaging pests usually from Lepidoptera. The aim of this study was to determine and counting percent parasitization of the parasitoids that parasitize palm leaf-eating pests in the oil palm plantation of PTPN VIII Cindali, Bogor. The study was conducted in 6 blocks of PTPN VIII Cindali oil palm plantation from September 2014 - June 2015 with observations once a month. Sample was taken by means of each block taken 5 plants in every plots randomly to be observed and palm leaf-eating insects taken to kept until the parasitoid was emerged. The outgoing parasitoids then counted and identificated. The results of the study founds 6 species of palm leaf-eating pests and 5 species of Hymenoptera parasitoids that parasitize these pests. Pests that found were Setora nitens, Amatissa sp., Birthosea bisura, Mahasena corbetti, Metisa plana and Pseudococcus sp. Whereas parasitoids that found were Spinaria spinator, Charops bicolor, Telenomus podisi, Aphanogmus sp. and Acerophagus sp