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Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter
Published by Universitas Syiah Kuala
ISSN : -     EISSN : -     DOI : -
Core Subject : Education, Engineering,
Engineering Other
Arjuna Subject : -
Articles 402 Documents
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The potential antioxidant activity of ethanolic extract of Aceh ant-plant (Mymercodia sp) on the free radical DPPH(1,1-Diphenyl-2-pikrylhidrazil) . Suryawati; . Frengki; Hijra Novia Suardi
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

This research aims to investigate the potential antioxidant activity of ethanolic extract of Aceh ant-plant (Mymercodia sp) on the free radical DPPH (1,1-diphenyl-2-pikrylhidrazyl). The ant-plant was extracted using maceration technique with the ethanol as solvent. The extract was made in various concentrations: 5, 10, 25, and 50 ppm. Then DPPH solution was added to it. Absorbance reading was conducted with spectrophotometry at the wave length of 517 nm after 30 minutes. The result of research shows the potency of ant-plant (Mymercodia sp) as an antioxidant free radical scavenging ethanolic extract with IC50 value of 14.73 ppm. The ascorbic acid as the control showed IC50 value of 7:32 ppm.
Multiagent Based Tsunami Evacuation Simulation: A Conceptual Model Khairul Munadi; Yudha Nurdin; . Nasaruddin; M. Dirhamsyah; Sayed Muchalil
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

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Abstract

During emergency situation, such as a large-scale tsunami or other disastrousevents, people evacuation may lead to more fatalities when it is conducted without a proper escape strategy. The ability to evacuate a huge number of people within a very limited amount of time is certainly required. Evacuation drills are therefore necessary to acquire an optimal escape strategy. Unfortunately, we have to deal with both financial and practicalchallenges for conducting a regular and meaningful drill. To overcome these challenges, one solution would be to develop the evacuation simulation model. Despite its limitation to mimic the real-life situations, simulation may provide practical ways of minimizing the negative consequences as well as useful insights to escape strategy. In this paper, we describe a conceptual model of multiagent based tsunami evacuation simulation (TES). The model formulation and description would follow the ODD (Overview, Design concepts, andDetails) protocol, which is a standard protocol widely used by agent-based modellers. The proposed model may serve as a framework for TES that offers the following features: estimate the clearing time or the time needed by people to leave the tsunami inundation area, and identify the potential bottleneck or congestion locations. Using the proposed conceptual model, we consider constructing the TES for Calang district, a coastal area in Aceh Jaya regency, for future work
Soybean production under drought stress with application of Bradyrhizobium japonicum induced by genistein Yaya Hasanah; Nini Rahmawat
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

A research about production of soybean under drought stress with the application of Bradyrhizobium japonicum induced by genistein  was conducted in green house, Faculty of Agriculture, University of Sumatera Utara. The aim of the research was to study the role of       B. japonicum induced by genistein on soybean production. The experiment  used Randomized Complete Block Design Factorial with three factors. The first factor was genistein treatments consisted of without and with genistein. The second factor  was B. japonicum consisted of  without B. japonicum, B. japonicum isolate 1, B. japonicum isolate 2 and B. japonicum isolate 3.  The third factor  was soil water content condition namely 40%, 60% and 80% of field capacity.  The parameters observed were plant growth rate, relative growth rate, nett assimilation rate, dry weight/plant and dry weight of 100 seeds.  The result research showed that the treatment of interaction between B. japonicum induced  genistein under 80% of field capacity gave the higher plant growth rate, plant growth rate, relative growth rate, nett assimilation rate and dry weight of 100 seeds.
Biopolymer From Starch And Chitosan As Bioplastic Material For Food Packaging Umi Fathanah; Mirna Rahman Lubis; Ryan Moulana
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

This research aims to improve economic value of cassava peel waste as raw material of bioplastic making, whose existence is still very abundant and has not been benefitted optimally. Bioplastic making is conducted by mixing starch and chitosan with gliserol as plasticizer. Bioplastic making is carried out at gelatinization temperature of 80oC. Chitosan addition is carried out at variatios of 0; 10; 20; 30; and 40 (% w). Research result indicates that mechanical property i.e. optimum value of tensile strength is obtained at value of 38.25 MPa with chitosan addition as much of 30%. The highest elongation percentage is obtained as much of 41.25% with addition of 10% chitosan. Physical property of resulted bioplastic is obtained from the best swelling test at addition of 40% chitosan i.e. 0.38%, and bioplastic density obtained is ranged from 2 – 3.33 g/ml. Analysis of functional group by using FTIR exhibits the existence of ester and carbonyl groups that indicates that resulted bioplastic could be degraded. Whereas biodegradability test on environment exhibits that bioplastic could be completely degraded in soil for 24 days.
Cesarean myomectomy: A case report in Zainoel Abidin General Hospital, Banda Aceh, Indonesia Bram Pradipta; Mohd. Andalas
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 1 (2011): Life Sciences
Publisher : Syiah Kuala University

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Abstract

The objective of the present study was to improve skill and knowledge in making a Cesarean myomectomy decision, its complications and its post operative care. Uterine myomas are the most common pelvic tumors over the age of 30. The incident of myomas in pregnancy are 0.05-5%.Myomas are now more frequently seen as many women delaying childbearing which is the time for greatest  risk of myoma growth. Also the use of ultrasonography has improved the diagnostic capability of detecting small myomas and has increased our knowledge of myomas in pregnancy. Myomectomy during cesarean section has traditionally been discouraged because of the risk of uncontrollable hemorrhage.  There are approximately 7 choices to be made according cesarean myomectomy such to leave it be, to leave it with Uterine artery ligation, to remove pedunculated fibroids only, to remove pedunculated, anterior subserous or lower uterine segment fibroids, to remove all anterior uterine fibroids, to remove all fibroids and selective removal of fibroids. A 32- year-old, gravida 3 para 2, Indonesian women presented with postterm-pregnancy and 20 cm intra mural- uterine myoma. Cesarean myomectomy was done to her with little to none intraoperative hemorrhage. Post C-section we found complications shown by uterine atony, profuse bleeding seen at the drainage through the peritoneum and marked changes in hemoglobin value. It is then carefully evaluated and managed using extensive follow up, high dose oxytocyin and blood transfusion. Cesarean myomectomy is now considered by many not always as a hazardous procedure and can be performed  in experienced hands, in a well equipped tertiary institution, with the advent of better anesthesia, with  availability of blood, in selected patients and according to site and size of myomas. It is always important to have a good informed consent beforehand and post operative care of cesarean myomectomy
The effect of inclination bench and intermittent mist on the growth and production of Anthurium plant (Anthurium andraeanum) Elly Kesumawati
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Anthurium andraeanum is an epiphyte with a habit of growth climbing. This plant has long duration of seed development and juvenile growth phase before flowering. A. andraeanum has 5 flowers per plant per year, with a variation from 0 to 7 flowers. The aims of this study are to determine the effect of intermittent mist and inclination bench on the growth and production of Anthurium in rock wool medium. This study uses cluster randomized design (RAK) 3 x 3 factorial pattern with 3 repetitions. There are three factors were tested in this experiment: 1) mist treatment (mist and control), 2) media type (bark andgranulous rock wool), 3) inclination angle of bench (0, 30 and 60 degrees). The investigations were leaf area, the number of inflorescence harvested, the spathe area, the fresh and dry weights. The results showed the plants with intermittent mist have bigger leaves and growth faster than control. Intermittent mist hassimilar effect with relative humidity as in the native of A. andraeanum. The root of plants on the inclination bench 0° with intermittent mist contact a substrate, and attached or penetrate to the rock wool medium and grown down wards the medium and bench. All flowers from plants grown under intermittent mist classified as large flowers, with the average around 14.19 cm. Intermittent mist and medium influenced the fresh and dry weight of Anthurium. Plants with intermittent mist have the average 18.17gram fresh weight and control just 12.96 gram per plant. The structure, length, branching pattern and thickness of aerial roots varied depend on intermittent mist, medium and inclination bench have an effect to the growth and flowering of plants
Assessment of double screening programmes via solid substrate fermentation (SSF) in a flask system and identification of lovastatin potential producer Syarifah A. Rashid; Darah Ibrahim; I Nyoman Pugeg Aryantha
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Local economical substrates namely rice bran and unprocessed brown rice was applied into fermentation condition to produce a potent secondary metabolite compound, lovastatin. A basis condition of fermentation viz. 70% (v/w) of moisture content (adjusted to pH 6.0), 1x107 spore/ml of inoculum size, mixture of 1:1 substrates and 7 days of incubation period, was applied into SSF system. During a preliminary test, all of 72 fungi disclosed positive dark spot onto the thin layer chromatography plate (TLC). In order to verify the existence of lovastatin, the secondary screening which involving high performance liquid chromatography (HPLC) was conducted. Out of 72, only 71 fungi were detected as lovastatin producers and the highest production was stated from SAR I isolate with 68.72±0.84 mg lovastatin/g dry substrate and 0.87±0.03 mg glucosamine/g dry substrate of fungal growth. SAR I isolate was identified via colony and microscopic morphologies. Through the observations, SAR I isolate was identical to Aspergillus niger
Diversification of brackishwater aquaculture in Indonesia: tilapia culture in Aceh Michael A. Rimmer; Coco Kokarkin; . Hasanuddin; Bakhtiar Sah Putra; . Syafrizal; . Saripuddin; Imran Lapong
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Traditional brackishwater aquaculture in Indonesia focuses on production of shrimp and milkfish. However, since the 1990’s production of shrimp, particularly Penaeus monodon, has become problematic because ofthe prevalence of white-spot disease. Crop losses due to white-spot disease have limited production of P. monodon in traditional tambak throughout Indonesia. Because of this, many tambak have fallen into disuse, or their use islimited. In response, we are developing and trialling diversification options for tambak farmers in Aceh and South Sulawesi. Alternative production options that we are evaluating include Nile tilapia (ikan nila) and soft-shell crab(kepiting lunak) in Aceh, and Nile tilapia, swimming crab (rajungan) and rabbitfish (baronang) in South Sulawesi. In Aceh our main focus has been on Nile tilapia (Oreochromis niloticus) culture, either alone or co-cultured with milkfish (Chanos chanos). We have undertaken trials with farmers in Samalanga and Jangka (Kab. Bireuen) and Banda Mulia (Kab. Aceh Tamiang). Overall, our trials have shown that tilapia will grow and survive well at salinities below 20 ppt. Above 20 ppt, growth rate is reduced and the fish are prone to bacterial disease. At salinities above 20 ppt, milkfish (bandeng) perform better in ponds than tilapia. Our trials in Aceh have demonstrated that Nile tilapia can provideincome to farmers comparable with shrimp culture. Out of a total of 22 trials to date, 9 ponds (41%) have met or exceeded our reference profitability of IDR 1–5 million per hectare per crop. Fourteen ponds (64%) have been‘profitable’, i.e. have generated positive economic returns. This figure is similar to the profitability figure for traditional shrimp ponds (64–73%), indicating that Nile tilapia culture in brackishwater ponds provides economic returns similar to traditional shrimp culture. Based on these results, we recommend Nile tilapia culture to farmers whose ponds are 20 ppt. This provides a profitable production option for farmers in areas subject to low salinities, or during the rainy season when salinities are depressed. Because outbreaks of white-spot disease are particularly common and severe during the rainy season, Nile tilapia culture provides a viable option for income generation for Acehnese tambak farmers under conditions where shrimp culture is too risky
Application of Soil Conservation in Oil Palm Plantation Halus Satriawan; Zahrul Fuady; Zara Yunidar
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Oil palm development in Bireuen very important to increase the regional incomes, however, is also faced with the danger of land resources and environmental damage because it sited in an area with a slope 15-35%, with land capability class III – VII. This study aimed to obtain soil and water conservation techniques are most appropriate and optimal in each land capability class. The studies were conducting by Experimental Method (Standard Erosion Plot). Testing of soil and water conservation techniques was done with land capability base. On land capability class III was tested four treatments, namely: the system of farmers; individual terrace (horseshoe); individual terraces + strips plant; cover crops + organic fertilizer.Land in class IV was tested  four treatments, namely: the system of farmers; sediment trap; sediment trap + vertical mulching; sediment trap + cover crops + organic fertilizer. Results of measurements of surface runoff and erosion on land capability class III, soil conservation techniques capable of suppressing erosion compared to the control treatment, in this case the best treatment is the cover crops and organic fertilizers. Cover crops and organic fertilizers is able to suppress runoff and erosion by 23.73% and 27.29% compared to controls. As well as the application of soil conservation techniques in land capability class IV with sediment trap + cover crop and organic fertilizer is very effective in controlling runoff and erosion to 45.81 and 45.63% compared to controls.
Phenol degradation on heterogeneous catalytic oxidation by using cobalt-natural zeolite catalyst Syaifullah Muhammad; Edy Saputra; Shaobin Wang; Moses O. Tadé
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 2 (2011): Engineering
Publisher : Syiah Kuala University

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Abstract

Two types of catalysts based on Indonesia Natural Zeolite (INZ) and Australia Natural Zeolite (ANZ) were prepared by impregnation of 5 % of active metal cobalt. The synthesized catalysts were calcined in air at 5500C for 6 hours. The catalysts were then used to degrade phenol concentration in heterogeneous catalytic oxidation with the presence of oxone as peroxymonosulphate source. The catalysts were also characterized by several techniques such as SEM, EDS and N2 adsorption. It was found that Co-INZ and Co-ANZ are effective catalyst in activation of peroxymonosulphate to produce sulphate radicals to degrade phenol concentration. In reaction test of 5 hours, with condition of 25 ppm phenol, 0.2 g catalyst loading, 1 gram oxone, 250C and stirring speed of 400 rpm, Co-INZ and Co-ANZ could reduce phenol up to 100% and 70% respectively. Further, several parameters such as amount of catalyst loading, phenol concentration, oxidant concentration and temperature are found as key factors in phenol degradation. Moreover, based on the trend of phenol degradation following by kinetic study, it was proved that the pseudo first order kinetics would fit to phenol oxidation with the rate constants of 0.0106 and for 0.0033 Co-INZ and Co-ANZ respevtively

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