Judul: Keragaan Unit Penangkapan Bagan Apung di PPN Palabuhanratu Sukabumi Jawa Barat
Abstrak: In 2011, bagan apung was the second largest fishing gear after kincang. It made up 23% of total fishing gears in Palabuhanratu. From 2007 to 2010, the number of the gear has decreased by 4%/year, how ever in 2011., it increased 12%. It was because the efficiency and the effectiveness of bagan apung was higher as compared to other gears. The change of the gear numbers, showed the performance of bagan apung fishing unit from catches composition and financial analysis. The catches composition of bagan apung was fluctuative and different, either for those which use fishing vessels or not. Based on effort analysis, the catches selling showed that the average profit for fishermen who own bagan apung with fishing vessel was Rp 22.441.017,00/year, for while for fishermen who own bagan apung without fishing vessel was Rp 18.928.250,00/year. The fishermen who own bagan apung with fishing vessels earned money from vessels renting about Rp 120.910.444/year. Based on R/C and ROI value, it can be seen that both types of bagan apung were feasible business. If the income was only from vessel renting, the business of bagan apung with fishing vessel was no longer feasible since its R/C is about 0,61 (R/C <1). Payback period of bagan apung with vessel was 6,99 years, and without vessel was 0,98 years. The investment analysis showed that the business of fishermen who own bagan apung with fishing vessel was feasible because by using interest rate at 13%, the NPV was Rp 8.187.023,00/year, Net B/C > 1 and IRR > 1 from interest rate at 13%.
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Judul: Kajian Usaha Penangkapan dengan Alat Tangkap Multi Gear di Palabuhanratu (Studi Kasus Kapal PSP 01)
Abstrak: Palabuhanratu merupakan basis perikanan tangkap di selatan Jawa Barat dengan aktivitas perikanan yang relatif tinggi. Namun kondisi produktivitas alat tangkap di PPN Palabuhanratu berfluktuatif dan cenderung menurun. Oleh karena itu diperlukan adanya sebuah pengembangan teknologi dalam alat tangkap, yaitu dengan menggunakan unit penangkapan multigear. Secara teknik operasional, kapal PSP 01 tidak berbeda jauh dan relatif sama dengan kapal single gear lainnya. Namun kapal PSP 01 dapat mengoperasikan lebih dari satu alat tangkap ketika beroperasi. Alat tangkap yang utama dioperasikan adalah pancing. Pada periode pertama usaha Mei 2008-April 2009, kapal PSP 01 memiliki nilai keragaan produksi hasil tangkapan lebih besar dibandingkan pada periode kedua usaha, Mei 2009-April 2010. Hal ini disebabkan karena volume produksi hasil tangkapan pada periode pertama lebih besar yaitu 12.556,56 kg. Pada analisis usaha yang dilakukan, kapal PSP 01 mendapatkan keuntungan sebesar Rp 5.238.038 pada Mei 2008–April 2009, dan mengalami kerugian sebesar Rp 2.881.917 pada tahun kedua yaitu Mei 2009–April 2010. Berdasarkan analisis kriteria investasi usaha, kapal PSP 01 tidak layak untuk dikembangkan karena nilai NPV dan IRR yang negatif.
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Judul: Sintesis Flavonol melalui 2’-Hidroksikalkon
Abstrak: Flavonol is a class of flavonoids commonly found in fruits and vegetables. Flavonol is very useful, especially in food sector and health. In this study, flavonol unsubstituted was successfully synthesized from an intermediate material 2’-hydroxychalcone. The 2’-hydroxychalcone was synthesized by Claisen-Schmidt condensation method between o-hydroxyacetophenone and benzaldehyde using 4 different catalysts, namely KOH 60%, solid pellet of KOH-grinding technique, BF3-Et2O, and NaH in DMF. The KOH 60% was the best catalyst, giving the highest yield (57%). Afterward, the flavonol was synthesized in 1-stage oxidation cyclization of o-hydroxyacetophenone using Algar-Flynn-Oyamada (AFO) reaction, giving 76%. The flavonol total yield from 2’-hydroxychalcone was 43%. All synthesized products were characterized by their melting points and their spectra. The success of the synthesis flavonol opens the way to synthesis of useful flavonol derivatives such as quercetin and kaempferol.
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