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Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius) Leaf Extracts ., Murhadi; ., Susilawati; ., Susilawati
Jurnal Teknologi Dan Industri Pangan Vol 18, No 1 (2007): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salam”) and Pandanus amaryllifolius (“Pandan”) leaf extracts and the effect of wet heating (1000, up to 60 min) on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h), ethanol, ethanol/ethylacetate (1:1, v/v), and ethlacetate bt soxhlet (3x8 h) separately. Each residue was further extracted using the same solvent by shaker (250 rpm, 24 h). finally filtrates were mixed and evaporated to produce the extract. Salam leaf ethanol extract (yield 11.50%) showed highest antibacterial activity especially towards P. aeruginosa (diameter of inhibitor 6.5 mm/mg) and B. subtilis (6.3 mm/mg). Pandan leaf erhanol/ethylacetate extract (yield 15.61 %) also showed antibacterial activity towards P. aeruginosa (4.25 mm/mg) and B. subtilis (3.2 mm/mg). In general, salam leaf extracts showed higher antibacterial activity than pandan leaf extracts. Pandan and salam leaf water extracts had no antibacterial activity. Escerichia coli was more resistant to the extracts compared Staphylococcus aureus, bacillus subtilis, and pseudomonas aeruginosa. Antibacterial activity of salam leaf ethylacetate extract decreased 6.55%, lower than that of pandan leaf ethylacetate extract (18.48%) after heating 1000C for 10up to 60 min. Key words : salam, pandan, antibacterial activity.  
Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius) Leaf Extracts ., Murhadi; ., Susilawati; ., Susilawati
Jurnal Teknologi Dan Industri Pangan Vol 18, No 1 (2007): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Original Source | Check in Google Scholar | Full PDF (405.908 KB)

Abstract

The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salam”) and Pandanus amaryllifolius (“Pandan”) leaf extracts and the effect of wet heating (1000, up to 60 min) on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h), ethanol, ethanol/ethylacetate (1:1, v/v), and ethlacetate bt soxhlet (3x8 h) separately. Each residue was further extracted using the same solvent by shaker (250 rpm, 24 h). finally filtrates were mixed and evaporated to produce the extract. Salam leaf ethanol extract (yield 11.50%) showed highest antibacterial activity especially towards P. aeruginosa (diameter of inhibitor 6.5 mm/mg) and B. subtilis (6.3 mm/mg). Pandan leaf erhanol/ethylacetate extract (yield 15.61 %) also showed antibacterial activity towards P. aeruginosa (4.25 mm/mg) and B. subtilis (3.2 mm/mg). In general, salam leaf extracts showed higher antibacterial activity than pandan leaf extracts. Pandan and salam leaf water extracts had no antibacterial activity. Escerichia coli was more resistant to the extracts compared Staphylococcus aureus, bacillus subtilis, and pseudomonas aeruginosa. Antibacterial activity of salam leaf ethylacetate extract decreased 6.55%, lower than that of pandan leaf ethylacetate extract (18.48%) after heating 1000C for 10up to 60 min. Key words : salam, pandan, antibacterial activity.  
Evaluasi Kerusakan Tegakan Tinggal Akibat Pemanenan Menggunakan Landsat 7 ETM+ di HPH PT Sri Buana Dumai Provinsi Riau (Evaluating Logged Over Stand Using Landsat 7 ETM+ in Sri Buana Dumai Co. Ltd. Concession Area, Riau Province) ., Susilawati; Jaya, I Nengah Surati
JURNAL MANAJEMEN HUTAN TROPIKA Vol 9, No 1 (2003)
Publisher : Bogor Agricultural University

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Abstract

This paper describes the use of Landsat 7 ETM+ for evaluating logged over stand condition. The digital classification and spatial analysis were performed to identity degree of stand damage and their spatial distribution. The study found that Landsat 7 ETM+ images were powerful to identify logged over stand damage having Kappa and overall accuracies more than 99%, as well as interclass separability more than 1900 (good). There is also a spatial relationship between the stand damage and distance from the logging road.
PENGUJIAN VARIETAS DAN DOSIS PUPUK UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL RATUN-PADI DI SAWAH PASANG SURUT ., Susilawati; Purwoko, Bambang S
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 15, No 1 (2012): Maret 2012
Publisher : Jurnal Pengkajian dan Pengembangan Teknologi Pertanian

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Abstract

Test of Rice Varieties and Fertilizer Dose for Increasing Yield of Rice Ratoon in Tidal Swamp Land. The main cause of low productivity of rice in the tidal swamp land is a high level of soil acidity and toxicity of pyrite. To improve the productivity of rice per season in tidal swamp land is to establish the ratoon. The experiment was conducted in type B tidal swamp land, Dadahup A-2 village, Kapuas District, Central Kalimantan. The objectives of this study were (a) to determine the effect of doses of fertilizers combined with water-logging after cutting, (b) to obtain technology information to enhance the ratoon yield, and (c) to produce recommendations of the farming system in tidal swamp land. The experiment was arranged in a split plot design with three replications. The main plots were five rice varieties, i.e. IR42, Batanghari, Ciherang, Intani-2, and Batang Samo, while subplots were two levels of doses fertilizers, i e. half doses of the main crops (N1 = 75 kg Urea, 50 kg SP-36 and 50 kg of KCl per hectare) and one quarter doses of the main crops (N2 = 37,5 kg of Urea, 25 kg SP-36 and 25 kg of KCl per ha). The results of the experiment indicated that application of fertilizers with a half dose of the main crops increased the grain per panicle, number of filled grain and yield, that was higher than a quarter doses of the main crops. Batang Samo variety was the most responsive to fertilization with higher doses, while Intani-2 variety was responsive to a lower dose of the fertilizer. Batanghari was superior variety with the highest yield of ratoon both a half doses fertilization and a quarter of the main crops. Based on the farming analysis, the ratooning system is very feasible in the tidal swamp lands because it can increasing productivity ± 2.4 – 2.7 t/ha. Salah satu upaya untuk meningkatkan produktivitas padi di lahan pasang surut adalah dengan memanfaatkan ratun. Penerapan budidaya padi dengan sistem ratun, dapat memberikan tambahan produksi 40-60% per musim tanam, hemat input, biaya, tenaga dan waktu. Suatu penelitian dilaksanakan di lahan pasang surut tipe B, Dadahup A-2, Kabupaten Kapuas, Kalimatan Tengah, mulai bulan Juni 2007 sampai Januari 2008. Penelitian bertujuan untuk : (a) mengetahui pengaruh dosis pupuk dan penggenangan air setelah panen tanaman utama, (b) mendapatkan informasi teknologi untuk meningkatkan potensi ratun, dan (c) menghasilkan rekomendasi usahatani dengan sistem ratun di lahan pasang surut. Percobaan menggunakan rancangan petak terpisah dengan tiga ulangan. Petak utama terdiri atas lima varietas padi, yaitu : IR42, Batanghari, Ciherang, Intani-2, dan Batang Samo. Anak petak terdiri atas dua takaran dosis pemupukan, yaitu : setengah dari dosis tanaman utama (N1 = 75 kg Urea, 50 kg SP-36 dan 50 kg KCl per ha) dan seperempat dari dosis tanaman utama (N2 = 37.5 kg Urea, 25 kg SP-36 dan 25 kg KCl per hektar). Ratun yang dipupuk dengan perlakuan N1 menghasilkan jumlah gabah per malai, jumlah gabah isi dan hasil yang lebih tinggi dibandingkan dengan perlakuan N2. Varietas Batang Samo paling responsif tehadap pemupukan dengan dosis tinggi, sedangkan varietas Intani-2 paling responsif terhadap pemupukan dengan dosis rendah. Varietas Batanghari merupakan varietas terbaik yang mampu memberikan hasil ratun tertinggi, baik pada perlakuan N1 maupun N2. Usahatani dengan sistem ratun layak diusahakan di lahan pasang surut karena mampu memberikan tambahan poduksi  2,4 – 2,7 t/ha.
PENGEMBANGAN PAKET ALAT PERAGA TERPADU MELALUI LIFESKILL PROJECT UNTUK MENINGKATKAN KETERAMPILAN CALON GURU FISIKA DALAM MEMFASILITASI PENDEKATAN SAINTIFIK Khoiri, Nur; ., Susilawati
Media Penelitian Pendidikan Vol 8, No 2 Desember (2014): mpp
Publisher : Media Penelitian Pendidikan

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Abstract

Activity observed and tried in the stage scientific approach requires the availability of props to demonstrate concepts and try the content to be learned. The problem by prospective physics teachers is the difficulty in making simple physics props needed at this stage and try to observe the implementation of the scientific approach. The objectives of this research is that the physics teacher candidates have the skills to design a simple physics props relevant to 21st century skills. This study is a Research and Development (R&D). The result product is a package props to static and dynamic fluid. This study was conducted based on the analysis of the needs prospective physics teachers to have certain skills (soft skills) and the ability to facilitate learners to explore. This study resulted in an integrated props for the concept of fluid through projects such as Torricelli hydrostatic pressure, venturi pipe, hydraulic bridge, liquid viscosity, and hydraulic pipes. The results of the expert validation revealed that this integrated props recommended for use as props and lab equipmentin fluid concept. Validation of experts found that the relevance of the material props, the practically of the use of props, language and time including both categories. The results of limited test package props fluid shows that there is an increase in the study of students after using the fluid package props. Key words: props, lifeskill project, skills, scientific approach
TEACHING DESCRIPTIVE WRITING TO THE EIGHTH GRADERS THROUGH COPS STRATEGY ., Susilawati
e-Journal of ELTS (English Language Teaching Society) Vol 5, No 4 (2017)
Publisher : Universitas Tadulako

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Abstract

The objective of this research is to find out whether or not the use of COPS strategy can improve students? ability in writing descriptive to the eight grade of SMP Negeri 6 Palu. The researcher applied a quasi experimental research design which was conducted by using pre-test and post-test. The population of this research was the eight grade students of SMP Negeri 6 Palu and the research sample were? VIII C as the experimental group, while? VIII B as the control group. The data were collected through pre-test and post-test. The result of the test shows that there is an improvement on the students? mean score after the treatment. The students? pre-test mean score (56.96) increased to (89.93) the post-test. The researcher found that the t-counted value (7.485) was greater than the t-table value (1.998). It means that the hypothesis was accepted. Based on the result, it is concluded that using COPS strategy is effective to improve the writing skill of the eighth grade students of SMP Negeri 6 Palu.???????????? ? Keywords: COPS Strategy, Descriptive? Text.
Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius) Leaf Extracts ., Murhadi; ., Susilawati; ., Susilawati
Jurnal Teknologi Dan Industri Pangan Vol 18, No 1 (2007): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Original Source | Check in Google Scholar | Full PDF (405.908 KB)

Abstract

The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salamâ€Â) and Pandanus amaryllifolius (“Pandanâ€Â) leaf extracts and the effect of wet heating (1000, up to 60 min) on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h), ethanol, ethanol/ethylacetate (1:1, v/v), and ethlacetate bt soxhlet (3x8 h) separately. Each residue was further extracted using the same solvent by shaker (250 rpm, 24 h). finally filtrates were mixed and evaporated to produce the extract. Salam leaf ethanol extract (yield 11.50%) showed highest antibacterial activity especially towards P. aeruginosa (diameter of inhibitor 6.5 mm/mg) and B. subtilis (6.3 mm/mg). Pandan leaf erhanol/ethylacetate extract (yield 15.61 %) also showed antibacterial activity towards P. aeruginosa (4.25 mm/mg) and B. subtilis (3.2 mm/mg). In general, salam leaf extracts showed higher antibacterial activity than pandan leaf extracts. Pandan and salam leaf water extracts had no antibacterial activity. Escerichia coli was more resistant to the extracts compared Staphylococcus aureus, bacillus subtilis, and pseudomonas aeruginosa. Antibacterial activity of salam leaf ethylacetate extract decreased 6.55%, lower than that of pandan leaf ethylacetate extract (18.48%) after heating 1000C for 10up to 60 min. Key words : salam, pandan, antibacterial activity.  
Antibacterial Activity Of (Syzygium Polyanta And Amaryllifolius) Leaf Extracts ., Murhadi; ., Susilawati; ., Susilawati
Jurnal Teknologi Dan Industri Pangan Vol 18, No 1 (2007): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Original Source | Check in Google Scholar | Full PDF (405.908 KB)

Abstract

The objectives of this research were to study antibacterial activities of syzgium polyanta (“Salamâ€Â) and Pandanus amaryllifolius (“Pandanâ€Â) leaf extracts and the effect of wet heating (1000, up to 60 min) on their antibacterial activities against staphylococcus aureus, bacillus subtillis, pseudomonas aeruginosa and Escherichia coli. Salam and pandan leaves powder was extracted using hot water (700C, 2 h), ethanol, ethanol/ethylacetate (1:1, v/v), and ethlacetate bt soxhlet (3x8 h) separately. Each residue was further extracted using the same solvent by shaker (250 rpm, 24 h). finally filtrates were mixed and evaporated to produce the extract. Salam leaf ethanol extract (yield 11.50%) showed highest antibacterial activity especially towards P. aeruginosa (diameter of inhibitor 6.5 mm/mg) and B. subtilis (6.3 mm/mg). Pandan leaf erhanol/ethylacetate extract (yield 15.61 %) also showed antibacterial activity towards P. aeruginosa (4.25 mm/mg) and B. subtilis (3.2 mm/mg). In general, salam leaf extracts showed higher antibacterial activity than pandan leaf extracts. Pandan and salam leaf water extracts had no antibacterial activity. Escerichia coli was more resistant to the extracts compared Staphylococcus aureus, bacillus subtilis, and pseudomonas aeruginosa. Antibacterial activity of salam leaf ethylacetate extract decreased 6.55%, lower than that of pandan leaf ethylacetate extract (18.48%) after heating 1000C for 10up to 60 min. Key words : salam, pandan, antibacterial activity.  
KERAPATAN DAN VIABILITAS KONIDIA BEAUVERIA BASSIANA DAN METARHIZIUM ANISOPLIAE PADA MEDIA IN VITRO PH RENDAH Rizkie, Lilian; Herlinda, Siti; ., Suwandi; Irsan, Chandra; ., Susilawati; Lakitan, Benyamin
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 2 (2017): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

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Abstract

Conidial density and viability of Beauveria bassiana and Metarhizium anisopliae grown on the low-pH in vitro medium. Liquid bioinsecticide with active ingredient from conidial entomopathogenic fungus has major constraints, namely short shelf life due to declining conidial viability and density is caused by low pH in the bioinsecticide carrier. This experiment aimed to measure the loss of conidial viability and density of Beauveria bassiana and Metarhizium anisopliae isolates grown on in vitro medium with low pH. Entomopathogenic fungus isolates were used as much as 28 isolates grown on in vitro medium at low pH, namely pH 5, 4, 3, and 2. The results showed that the fungus isolate that had the highest conidial density on in vitro medium at pH 5 was found on isolates of B. bassiana with code BPcMs (2.583 x 109 conidia mL-1), while the lowest one was found on isolates of B. bassiana with code of BWS Pantura (0.825x109 conidia mL-1). All isolate conidial density from in vitro medium with pH 2 decreased regularly. Conidial density of BPcMs isolate decreased to 2.483 x 109conidia mL-1, as well as BWS Pantura isolate also decreased to 0.425x109 conidia mL-1. The highest conidial viability at pH 5 was found on isolates of B. bassiana with code of BPcMs (51.572%), while the lowest conidial viability was found on isolate of B. bassiana with BTmPc code (15.040%). At pH 2, almost isolates tested had low conidial viability. The conidial viability of isolates BPcMs decreased to 47.037%%, while the isolates BTmPc also decreased to 12.778%. Therefore, the lower of the pH of the in vitro medium was, the lower of conidial viability and density of B. bassiana and M. anisopliae was
PENGEMBANGAN PAKET ALAT PERAGA TERPADU MELALUI LIFESKILL PROJECT UNTUK MENINGKATKAN KETERAMPILAN CALON GURU FISIKA DALAM MEMFASILITASI PENDEKATAN SAINTIFIK Khoiri, Nur; ., Susilawati
Media Penelitian Pendidikan Vol 8, No 2 Desember (2014): mpp
Publisher : Media Penelitian Pendidikan

Show Abstract | Original Source | Check in Google Scholar

Abstract

Activity observed and tried in the stage scientific approach requires the availability of props to demonstrate concepts and try the content to be learned. The problem by prospective physics teachers is the difficulty in making simple physics props needed at this stage and try to observe the implementation of the scientific approach. The objectives of this research is that the physics teacher candidates have the skills to design a simple physics props relevant to 21st century skills. This study is a Research and Development (R&D). The result product is a package props to static and dynamic fluid. This study was conducted based on the analysis of the needs prospective physics teachers to have certain skills (soft skills) and the ability to facilitate learners to explore. This study resulted in an integrated props for the concept of fluid through projects such as Torricelli hydrostatic pressure, venturi pipe, hydraulic bridge, liquid viscosity, and hydraulic pipes. The results of the expert validation revealed that this integrated props recommended for use as props and lab equipmentin fluid concept. Validation of experts found that the relevance of the material props, the practically of the use of props, language and time including both categories. The results of limited test package props fluid shows that there is an increase in the study of students after using the fluid package props. Key words: props, lifeskill project, skills, scientific approach