Judul: Peran Industri Pulp and Paper terhadap Perekonomian Wilayah Provinsi Riau
Abstrak: Industri pulp and paper merupakan salah satu jenis investasi unggulan di Provinsi Riau. Hal ini dapat menjadi salah satu peluang besar bagi Provinsi Riau dalam mendorong pembangunan ekonomi wilayahnya. Tujuan penelitian ini adalah menganalisis peran industri pulp and paper terhadap pembentukan nilai tambah bruto, keterkaitan ke belakang dan keterkaitan ke depan, menganalisis besarnya multiplier output, pendapatan dan daya serap tenaga kerja, serta menganalisis dampak investasi Hutan Tanaman Industri (HTI) terhadap perekonomian wilayah Provinsi Riau. Penelitian ini menggunakan pendekatan Input-Output (I-O) dengan bantuan software I-O Analysis for Practitioners 1.0.1. Hasil penelitian ini menunjukkan bahwa peran indsutri pulp and paper terhadap pembentukan nilai tambah bruto berada di urutan keenam dengan persentase sebesar 6,02 persen. Industri pulp and paper memiliki nilai keterkaitan ke depan dan ke belakang yang tinggi, serta memiliki dampak multiplier terhadap output, pendapatan dan tenaga kerja yang relatif cukup tinggi dibandingkan dengan sektor perekonomian lainnya sehingga industri pulp and paper dapat diandalkan dalam mendorong pertumbuhan wilayah Provinsi Riau. Selain itu, dampak investasi yang terjadi dengan melakukan shock terhadap HTI pada sektor kehutanan sebesar Rp 4,14 triliun mampu meningkatkan output sektor perekonomian sebesar 1,75 persen, terhadap pendapatan sebesar 1,70 persen, dan terhadap penyerapan tenaga kerja sebesar 7,26 persen. Berdasarkan hal tersebut dapat diketahui bahwa industri pulp and paper memiliki peran yang penting dalam mendorong pertumbuhan wilayah Provinsi Riau, terutama dalam menciptakan nilai tambah, meningkatkan output, pendapatan dan menyediakan lapangan pekerjaan.
Keyword: input-output, investasi, keterkaitan, multiplier effect, pulp and paper

Judul: The role of pulp and paper industry in the economy of Riau Province: input-output analysis
Abstrak: National and regional economic development requires economic growth to achieve prosperity. The achievement of economic growth as seen from the growth of Gross Domestic Product (GDP) and Gross Regional Domestic Product (GRDP) should be achievable by all regions in Indonesia, including Riau Province. In order to pursue high economic growth, the government of Riau Province and the public need to know information about what sectors are able to produce the high Gross Regional Domestic Product (GRDP). Riau Province is the largest contributor to the GDP of Sumatra and has the major players in pulp and paper industry operating in Perawang and Kerinci, where both located in Riau Province. Based on the data from the GDRP of Riau Province in 2010, manufacturing sector has gave the highest contribution, where pulp and paper industry is one of the prominent players. Paper industry has been giving major contribution to regional and national economy through export increase, investment value added, business opportunities creation and human resources employment as well as national income from tax and non-tax revenues. The supporting factors for the above mentioned are the availability of main raw materials for paper industry which are natural resources especially woods supply, climate condition that is conducive for raw materials growth; and lower production costs compared to other producer countries. With two largest players in paper industry are operated in Riau Province, this study will analyze the role of the paper industry in the economy of Riau Province through the contribution in GDRP and the linkages with other sectors. The method use is through the analysis of Input-Output Table Riau Province in 2010 classification of 112 sectors, aggregated into 22 sectors. The analysis includes linkage analysis, dispersion analysis, and multiplier analysis. From the analysis it can be seen that pulp and paper industry has a relatively high value. Therefore, pulp and paper industry is one of the priority sectors in the economy of Riau Province. These results can be used as a reference for the development of pulp and paper industry in Riau Province as an economic sector that has the ability to increase the economic output and income. The government of Riau Province is expected to overcome the obstacles in the development of pulp and paper industry.
Keyword: Input-Output, Pulp and paper industry, Riau Province

Judul: Optimization of Alginate-Chitosan Microcapsules Formation for Leydig Cells Encapsulation
Abstrak: Hypogonadism is a clinical condition characterized by low concentrations of testosterone. It is caused by malfunction of Leydig cells in producing testosterone. Encapsulation method will protect the transplanted cells from the immune system rejection. The aims of this study was to optimize the formation of microcapsules for Leydig cells encapsulation. The microcapsules were made of alginate and chitosan as the first and the second coating agents, respectively. The result showed that the minimum concentration of alginate was 1.5% (w/v) with a viscosity of 33.8 cPs, resulted spherical microcapsules with diameters of 230-270 µm. The optimum concentration of chitosan as the second coating agent was 0.5% (w/v), resulted spherical microcapsule with mechanical stability in 4 hours. Leydig cells can be trapped inside the capsule with a density that proportional with concentration of cells used in the encapsulation.
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