Proses Pengolahan Mie Kering Rumput Laut Gracilaria sp. di CV KG Makassar

Rumput laut  (Gracilaria sp.)  merupakan penghasil agar yang memiliki fungsi sebagai pembentuk gel pada makanan.  Mie kering adalah salah satu bentuk pangan olahan dari tepung terigu yang banyak dikonsumsi dan digemari oleh berbagai lapisan masyarakat Indonesia. Penelitian ini bertujuan untuk mengetahui proses pengolahan mie kering rumput laut (Gracilaria sp.) dari penerimaan bahan baku hingga akhir penyimpanan, mengetahui mutu organoleptik bahan baku dan produk  dan mutu kimia kadar air dan protein. Penelitian dilakukan dengan observasi mengikuti proses tahap penerimaan bahan baku, pencucian, pemblenderan, pencampuran dan pembuatan adonan (mixing), pelempengan/pemipihan, pencetakan, penggorengan, penimbangan, dan tahap terakhir adalah pengemasan.  Hasil penelitian menunjukkan mutu organoleptik bahan baku rumput laut kering diperoleh nilai rata-rata 8,23  Hasil uji sensorik mie kering rumput laut nilai rata-rata bau 7,25; rasa 7,56; warna 8.26 dan tekstur 8.64. Hasil uji kadar air 7.42% dan kadar protein 10.4%, kadar lemak 0.52%, karbohidrat 72.78%, serat kasar 2.81% dan kadar abu 3.34%.  Hasil penelitian menunjukkan bahwa proses pengolahan mie kering rumput laut memenuhi standar  SNI 8271-2015

Pemodelan, Pengujian, Dan Analisis Getaran Torsional Dari Perangkat Uji Sistem Poros-Rotor

Vibrations of rotating machinary can be classified as translational and rotational. The vibrations occurred in rotational direction are commonly classified as torsional vibration. Torsional vibration can cause fatigue damage of shaft, coupling, or gear. In this paper, a method for measuring torsional vibration is proposed. This method uses two incremental encoders and an algorithm to process the data. To show its effectiveness, the method was implemented to measure torsional vibration of a rotor shaft system. The paper also shows the torsional vibration characteristics of of the system. To predict the torsional natural frequencies of the system, a finite elemen model was developed using Ansys Workbench 11 and the results was validite using a torsional FRF test. The measurement was performed a range of rotational speed to enable a spectral map can be constructed. There were two types of flexible couplings used in this work, a hose coupling and a rubber jaw coupling. The results of the experiment show that the proposed method can be implemented very well to measure the torsional vibration of the rotor shaft-system. In addition, the torsional vibration of the rotor shaft system has a similar characteristics to that of translational vibration, in which vibration signal is dominated by component with frequency of 1xRPM. The results also show that the level of torsional vibration depends on the type of flexible coupling being used. Due to low torsional stiffness, hose coupling produce low natural frequencies than those of jaw coupling. As a consequence, hose coupling are liable to higher vibration than jaw coupling

Foragent export agent

This case is about the process a forwarding agent had to undergo to document three major processes: importing, exporting, and billing. These major processes were recorded and tabulated to facilitate (1) easy understanding of the processes and (2) reengineering of processes. The case is appropriate for small and medium enterprises to follow in documenting processes and reengineering them by merging, collapsing and removing, and rearranging. The case also suggests ways to insert technologies and innovations at appropriate steps of the processes

Dielectrophoretic separation of cells using 3-D microelectrode

The dielectrophoretic (DEP) separation of cell, using microelectrodes structure, has been limited to small scale due to size of the substrate. This work was carried out to extend the capability of microelectrodes system by orientating the microelectrodes in three dimensions (3-D) for larger scale dielectrophoretic separation of microorganism. The designed 3-D separation chamber consists of microelectrodes on two opposing walls. Based on the FEMLAB simulation, the electric field was seen to be generated across the chamber, rather than between adjacent electrodes in the same plane like in the small scale system. This configuration led to a stronger electric field in the bulk medium. The experimental results showed that the 3-D microelectrodes chamber behaved similar to the system with microelectrodes on one wall. The effects of the main parameters such as voltage, frequency and flow rates were similar to that of the systems with all the electrodes on one wall, but on the overall, capture more cells. A gap size between 250 – 500 µm resulted in an electric field which is strong enough to hold cells while giving a reasonable cross sectional area at the same time. Although there is some improvement achieved by 3-D system, it is still not very much, as compared to the small scale system

Large scale dielectrophoretic construction of biofilms using textile technology

Arrays of microelectrodes for AC electrokinetic experiments were fabricated by weaving together stainless steel wires (weft) and flexible polyester yarn (warp) in a plain weave pattern. The cloth produced can be used to collect cells in low conductivity media by dielectrophoresis (DEP). The construction of model biofilms consisting of a yeast layer on top of a layer of M. luteus is demonstrated, using polyethylenimine (PEI) as the flocculating agent. This technique offers an alternative to the formation of biofilms at microelectrodes made by photolithography, and would allow the construction of biofilms with defined internal architectures by DEP at much larger scales than was possible previously. Furthermore, the flexibility of the cloth would also allow it to be distorted or folded into various shapes

Loss Estimation of Protected Forest Damage and Its Impact on Fishery Sector in Goa Cina Beach, South Area of Malang Regency

Goa Cina is one of magnificent beach destinations in the South Area of Malang Regency which attracts local and foreign tourists. Generally, there are two kinds of tourism management namely ecoturism based and masstourism based. However, Goa Cina implements masstourism based management. Thus it needs an area to build tourism facilities and infrastructures. The ideal functions of protected forest had conversed into buildings such as parking lots, stalls, religious buildings, restrooms, etc. The damage of protected forest caused by its missing functions contributes to some losses. The aims of this research were to: 1) count the loss as the impact of protected forest conversion in Goa Cina which turned into tourism facilities and infrastructures; 2) analyze its impact on fishery production. The data were collected by conducting in-depth interview with the key informant and finding secondary data. The result indicated that the conversion of protected forest into tourism facilities and infrastructures caused ecological and economic loss and it needed massive ecological recovery. The fishery production also decreased due to sedimentation of saltwater. It is suggested that ecotourism should be considered for tourism development instead of masstourisnm

Effects of Packing Densities in Plastic Bags on Survival of Larvae and Fry of Helostoma temmincki (C&V)

Helostoma temmincki (C&V) larvae measuring 4.6 ± 0.6 mm total length were packed in plastic bags with oxygen at stocking densities of 0, 250, 500, 1000 and 1500/liter. Fry measuring 2. 0 cm ± 0.2 were similarly packed at densities of 0, 125, 250, 500 and 750/litre. The fish were observed for mortality 10 minutes, 24 hours and 48 hours after packing. The water quality parameters - temperature, dissolved oxygen, ammonia-N, dissolved carbon dioxide, pH and alkalinity - were determined at 0 hours for control bags only and for all bags at 48 hours after packing. There was no mortality in all bags 10 minutes after packing. After 24 hours, mortality of larvae packed at 500, 1000 and 1500/litre was less than 2% whereas no mortality was observed in the bags with fry. At 48 hours, mortalities of larvae were similar (P > 0.05) in all bags and were less than 2%. Mortalities of fry packed at 125, 250 and 500/litre were similar (P> 0.05) and less than 2%, whereas mortality of fry packed at 750/litre was significantly different (P < 0.05)

Effect Of Entrepreneurship Characteristics Of Fish Farmer Entrepreneurial Intentions Seedling People On The Unit (Upr) Sumbermina Sustainable In Village Sumbersekar District DAU Malang

Development of entrepreneurship is seen as a strategic step in solving the nation's economic problems (Milla, 2013). According to Krueger, Reilly and Casrud (2000), stated that entrepreneurship is the kind of behavior that was planned very precisely when explained using the theory of intentions. The purpose of this study was to knowing the profile and business activities of fish farmers in the UPR Sumbermina Lestari, knowing the characteristics of entrepreneurship and entrepreneurial intentions of UPR Sumbermina Lestari, and analyze the influence of entrepreneurial characteristics with entrepreneurial intentions both partially and simultaneously. This research is descriptive. The data used is quantitative data and qualitative data. Source data used are primary data and secondary data. The object of research in the form of entrepreneurial characteristics consisting of innovation, need for achievement, internal locus of control, risks taking, tolerance for ambiguity, self confident, and future-oriented as a variable X with the intention of entrepreneurship as a variable Y. research instruments testing using three test was validity and reliability test, and test assumptions multikolinieritas. There are two methods of data analysis in this study, descriptive statistical analysis, and logistic regression analysis

Potensi Anti-inflamasi Fraksi Etil Asetat Ranting Patah Tulang (Euphorbia Tirucalli L.) dengan Uji Penghambatan Denaturasi Protein

Ranting Patah tulang (Euphorbia tirucalli L.) mengandung senyawa flavonoid berpotensi sebagai anti-inflamasi. Penelitian ini bertujuan untuk menentukan potensi anti-inflamasi fraksi etil asetat patah tulang dengan menggunakan uji penghambatan denaturasi protein. Penelitian ini terdiri dari tiga kelompok percobaan yang terdiri dari kontrol negatif, kontrol positif natrium diklofenak, dan fraksi etil asetat patah tulang sebagai kelompok uji. Potensi anti-inflamasi (IC50) natrium diklofenak memiliki nilai sebesar 26,46 µg/ml. Sedangkan fraksi etil asetat ranting patah tulang memiliki nilai IC50 sebesar 250,53 µg/ml. Hasil tersebut menunjukan bahwa ranting patah tulang berpotensi sebagai anti-inflamasi