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Search Results: 1 - 10 of 908 matches for " HARI PURNOMO "
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Notes on Some Biological Aspects of Arctornis riguata Snellen (Lepidoptera: Lymantriidae)
HARI SUTRISNO,SUPUTA,HARI PURNOMO,SISWO POLANDONO
HAYATI Journal of Biosciences , 2013,
Abstract: Arctornis riguata Snellen is one of lymantriids which attacked a vast range of mango trees in Probolinggo at the beginning of 2011. About 1.2% mango trees from nine sub-districts have been defoliated by the larvae of this species. The larvae of this genus have been reported to forage at Anacardiacea as well; however, they have never been reported to forage at cultivated mango trees in Indonesia. Since there is no biological information of this species, thus, a study on some biological aspects of this species is needed. This study was conducted in the field as well as in the laboratory during 4 months (March-July 2011). The diagnostic characters of this species are black scale at dorsal antenna on both male and female and slightly setae particularly at the costal angle of valve on the male genitalia. Life span of this species is in the range of 30-37 days. This study also found four natural enemies of A. riguata i.e.: Bleparipa sp. (Diptera: Tachinidae), Euagathis sp. (Hymenoptera: Brachonidae), Theronia sp. (Hymenoptera: Ichneumonidae), and Brachymeria lasus (Hymenoptera: Chalcididae). Moreover, a single fungal pathogen of this species also was identified, i.e. Isaria fumosorosea Wize. Having these results, we considered that to control A. riguata, one need to conserve the native natural enemies by manipulating their environment.
Interaction of active compounds from Aegle marmelos CORREA with histamine-1 receptor
Agung Endro Nugroho,Dany Dwi Agistia,Maulana Tegar,Hari Purnomo
Bioinformation , 2013,
Abstract: The aim of this study is to determine the affinity of six active compounds of Aegle Marmelos Correa, they are (E, R)-Marmin, skimmianine, (S)-aegeline, aurapten, zeorin, and dustanin as antihistamines in histamine H1 receptor in comparison to cetirizin, diphenhydramine and chlorpheniramine as ligands comparison. Previously, in the in vitro study marmin obviously antagonized the histamine H1 receptor in a competitive manner. Methods: molecular docking to determine the interaction of ligand binding to its receptor. Lower docking score indicates more stable binding to that protein. Results: Marmin, skimmianine, aegeline, aurapten, zeorin, and dustanin were potential to develop as antihistamine agents, especially as histamine H1 receptor antagonists by interacting with amino acid residues, Asp107, Lys179, Lys191, Asn198, and Trp428 of histamine H1 receptor. Conclusions: Based on molecular docking, Amino acid residues involved in ligand protein interactions were Asp107, Lys179, Lys191, Asn198, and Trp428.
TEKNOLOGI PENGOLAHAN GULA COKLAT CAIR NIRA SIWALAN (Borassus flabellifer L.) [Brown Sugar Syrup Processing from Siwalan Palm Saps (Borassus flabellifer L.)]
Nurud Diniyah1)*,Simon Bambang Wijanarko2),Hari Purnomo3)
Jurnal Teknologi dan Industri Pangan , 2012,
Abstract: The aims of this research were to find out the effect of different levels of Brix degree in vacuum method to the sugar products and to compare the vacuum evaporation with traditional method (open pan) to the quality of Siwalan sugar products. Randomized Completed Design was used in the first phase of experiment with different levels of Brix content (i.e.60, 65, 70 and 75°Brix), as single factor and each treatment was replicated 6 times. In the second phase of experiment, t-test was used to compare the different methods of cooking techniques, vacuum evaporation and traditional method and each treatment was replicated 10 times. The results showed that in the first phase, 75oBrix was observed as the optimum product and characterised by 34.55 of brightness (L*), 8.83 of redness (a*), 22.35 of yellowness (b*), 6.63 of pH, 6.99 x 103cPof viscosity, 7.73% of reducing sugar, and organoleptic scoring were 107 for viscosity, 108 for colour, 110 for taste, 98 for aroma. At the second stage, it can be concluded that Siwalan sugar product produced using vacuum method gave a better quality compound to the traditional one (open pan).
Transfer of PUFA fatty acid protected and carnitin precursor on the ration of chemical composition of milk dairy goat  [PDF]
Sudibya  , Sutrisno Hadi Purnomo
Open Journal of Animal Sciences (OJAS) , 2013, DOI: 10.4236/ojas.2013.33033
Abstract: The experiment was conducted to investigate the effect of transfer of PUFA protected and carnitin precursor on the ration of chemical composition of milk dairy goat. In total, 10 female dairy goats of 2 - 4 years old Peranakan Etawah (PE) with body weight of 25 - 45 kg were used in this experiment. The feed material included a basal diet (control) based on yellow corn, rice bran, soya bean meal, coconut meal, tuna fish oil and lemuru fish oil. The method of the research was experimental in vivo using Randomized Completely Block Design (RCBD). There were 5 treatments in each experiment and 2 replications. The treatment consisted of P0 = control ration, P1 = P0 + 200 ppm L-carnitine on the ration, P2 = P1 + soya bean oil, P3 = P1 + protected tuna fish oil 5 ml or equal with 4% in the ration, and P4 = P1 + protected lemuru fish oil 5 ml or equal with 4% in the ration. The measured variable is chemical composition of milk dairy goat. The results of variance analysis showed that the effect of transfer of PUFA fatty acid in the rations contained 200 ppm L-carnitine significantly (P < 0.01) affecting the chemical composition of milk dairy goat. This research concluded that the
FORMULATION AND PROCESS OPTIMIZATION OF MUFFIN PRODUCED FROM COMPOSITE FLOUR OF CORN, WHEAT AND SWEET POTATO [Formulasi dan Optimasi Proses Produksi Mufin dari Tepung Komposit Jagung, Gandum dan Ubi Jalar]
Eko Hari Purnomo1,2)*,Azis B. Sitanggang1,2),Denny S. Agustin2),Purwiyatno Hariyadi1,2)
Jurnal Teknologi dan Industri Pangan , 2012, DOI: 10.6066/jtip.2012.23.2.165
Abstract: Intensification of use of local carbohydrate sources such as corn and sweet potato is expected to minimize wheat import and support food diversification program. The objective of this research was to optimize the composite flour composition and baking process conditions in muffin production. This research was divided into 3 steps namely formula optimization using mixture design techniques, process optimization using response surface methodology and final product analysis. The formula and process optimization was based on sensory parameter using hedonic rating test involving 70 untrained panelists. The results showed that the optimum formula was a formula with 4% wheat flour, 86% corn flour, and 10% sweet potato flour. The optimum baking condition was 39 minutes at 157°C. Analysis of muffin made with the optimum formula and baking conditions showed that the muffin had hardness, moisture, ash, protein, fat, cabohydrate, and crude fibre of 107.3 gf, 23.22%, 1.83%, 5.89%, 22.46%, 69.82%, and 0.26%, respectively.
Relationship of species Piper based on morphological and leaf essential oils characters in Yogyakarta
PURNOMO,RANI ASMARAYANI
Biodiversitas , 2005,
Abstract: Some of Piper species were used for traditional medicines and condiments. The leaf essential oil (terpenoid) of those Piper species usually were used as a main component in traditional medicine. The taxonomycal study was aimed to determined Piper species relationships based on morphological and leaf essential oils characters. The plants were obtained by exploring this province, and samples were collected for identification and leaf essential oils isolation purposes. Species identification were carried out based on identification key (Backer and Bakhuizen v.d. Brink, 1965; Heyne, 1987; Shaorong, 1982). The isolation of leaf essential oils was carried out using Stahl destillation method, and their composition were interpreted with liquid gas chromatography, using caryophyllene and -pinene as a standard of essential oils component. Dendrogram, which showed phenetic relationships among those species, were obtained by hierarchical cluster analysis method. Results of the research showed that there were 8 species found as cultivated plants in Yogyakarta, which were P. miniatum Bl., P. betle L., P. recurvum Bl., P. aduncum L., P. nigrum L., P. cubeba L.f., P. retrofractum Vahl., and P. sarmentosum Roxb. Ex Hunter. Relationship between species of Piper based on morphological character showed that P. aduncum and P. sarmentosum at the same cluster on 69.2% similarity level, and 40.4% similarity level to the other clusters. Relationsips between species of Piper based on leaf essential oils character resulted the difference cluster among the species, P. retrofractum separated from the other species at 45.5% similarity level, P. aduncum and P. cubeba indicated the higest similarity level (81.5%).
Influence of Connection Placement to the Behavior of Precast Concrete Exterior Beam-Column Joint
Elly Tjahjono,Heru Purnomo
Makara Seri Teknologi , 2004,
Abstract: This paper presents an experimental study on the influence of connection placement to the behaviour of exterior beamcolumn joint of precast concrete structure under semi cyclic loading. Four half-scale beam-column specimens were investigated. Three beam-columns were jointed through connection that are placed in beam-column joint region and the forth is connected at the plastic hinge potensial region of the beam. Crack patterns, strength, stiffness and ductility of the test specimens have been evaluated. The test result indicated that all beam-column specimens show good ductility behavior.
A habitat selection model for Javan deer (Rusa timorensis) in Wanagama I Forest, Yogyakarta
DANANG WAHYU PURNOMO
Nusantara Bioscience , 2010,
Abstract: Purnomo DW. 2010. A Habitat selection model for Javan deer (Rusa timorensis) in Wanagama I Forest, Yogyakarta. Nusantara Bioscience 2: 84-89. Wanagama I Forest is the natural breeding habitat of Javan deer (Rusa timorensis de Blainville, 1822). Habitat changes had affected Timor’s resource selection and caused the deer to move from undisturbed areas to developed areas with agriculture and human settlements. We suspected that this shift was caused by the degradation of natural habitat. The research aimed to identify factors that might influence future habitat selection. Habitat selection was analyzed by comparing proportions of sites actually used to sites that we considered available to use. The results of a logistic regression of site categories showed there are three habitat variables that influence resource selection: sum of tree species (exp =1.305), slope (exp =1.061), and distance to a water source (exp =1.002). The three variables influence the deer existing in a certain site of Wanagama Forest and arrange resource selection probability function (RSPF).
PENGARUH BAYANGAN BANGUNAN DAN VEGETASI PADA SUHU UDARA DI KAMPUS A UNIVERSITAS TRISAKTI
Agus Budi Purnomo
Dimensi : Journal of Architecture and Built Environment , 2003,
Abstract: Air temperature is influenced by several variables such as vegetation and land surface type. The purpose of our study is to understand the relationship between air temperature and the pattern of building and vegetation shade in an outdoor space. The research setting is the Campus A of Trisakti University at Grogol, Jakarta, Indonesia. The shade pattern is derived by using computer simulation. The air temperature data is taken from my past study in the same setting. In this paper I would like to see whether the air temperature measured at 100 random points in the campus has any significant influence to the temporal solar shade pattern on the same setting. From the research it is known that there is a significant influence of building shadows that falls on the point of measurement with the air temperature measured on the same point. Abstract in Bahasa Indonesia : Suhu udara dipengaruhi oleh beberapa variabel seperti vegetasi dan karakteristik permukaan bumi. Tujuan penelitian ini ialah untuk memahami pengaruh pola bayangan vegetasi dan bangunan pada suhu udara ruang luar. Setting penelitian ialah Kampus A Universitas Trisakti di Grogol, Jakarta. Data suhu udara yang diukur pada 100 titik acak dalam kampus adalah hasil studi penulis pada tahun 2002. Pola bayangan vegetasi dan bangunan disumulasikan menggunakan komputer. Dalam penelitian ini akan dilihat apakah suhu yang telah diukur dipengaruhi secara signifikan oleh pola bayangan vegetasi dan bangunan. Dari penelitian bisa diketahui bahwa ada pengaruh yang signifikan bayangan pohon dan bangunan kepada suhu udara. Kata kunci: Suhu, bayangan pohon, bayangan vegetasi.
THE ASSESSMENT OF SENSITIVITY OF BIOTIC INDICES IN DETERMINING SYMPTOMS AND LEVELS OF DISTURBANCE USING MACROBENTHIC ASSEMBLAGE DATA
Sapto Purnomo Putro
Journal of Coastal Development , 2011,
Abstract: Marine macrobenthic dynamics have been intensively studied in response to environmental disturbances, anda large number of techniques, including a variety of indices, have been proposed and developed forassessment. Structural and functional variability have been summarized through both univariate andmultimetric indices as integrative indicators in environmental monitoring programs. In general, multimetricindices are considered to be sensitive, stable, and robust, thus offer a promising approach for ecologicalassessment. This study is aimed to assess the degree of sensitivity for several indices in terms of their abilityto determine environmental changes. Based on macrofaunal data, several univariate and multimetric indiceswere used to assess and compare the level of disturbance at fallowed farm and reference (control) sites. Thetwo multimetric indices, the AZTI’s Marine Biotic Indices (AMBI) and Ecological Quality Ratio (EQR), wereused as integrative indicators to assess the categorisation of each sampled site. The results showed that acombination of multimetric index and univariate indices provide a better assessment. The categoriesdetermined by multimetric indices seem to be in accordance with level of disturbance expressed by thetrophic analysis, multivariate and graphical analyses used in this study. The AMBI has the ability to detectlarge scale differences among sites. However, AMBI was unable to discriminate slight changes in themacrobenthic assemblages between sites, as have been exposed by EQR.
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