Judul: The additional of lattice number toward simplex lattice design as authentication model of herbal medicine composition.
Abstrak: The quality control of herbal medicine is improving. Control diagram has been made as authentication model from Tensigard (Phapros) composition. Tensigard consisted of celery and kumis kucing extracts. The purpose of this research was to add lattice number in simplex lattice design in order to improve the Tensigard authentication model. The research was conducted by incorporating appropriate chemometric methods (principal component analysis and regression component analysis (PCR)) as tools for extracting relevant chemical information from the obtained infrared data. The result showed that all of combination designs have an infrared spectra similarity. Celery-kumis kucing-filler (SDKK) combination produced the biggest cumulative proportion of component 1 and 2, both all wavelengths and fingerprint area data, 94.94 and 97.52%, respectively. The best model based on PCR result from SDKK combination, which produced the proportion of celery, kumis kucing, filler, 61.50, 16.30, and 77.80%, respectively.
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Judul: Diferensiasi Temulawak, Kunyit, dan Bangle Berdasarkan Pola Pemisahan Senyawa Menggunakan Kromatografi Lapis Tipis
Abstrak: Differentiation of herbal medicine is very important to authentication test of raw materials and adulteration detection. Temulawak, kunyit, and bangle are herbs which are required in large scale. These plants are usually sold in powder form, so it would be difficult to differentiate them visually. Thus, a differentiation method to evaluate chemical composition of these three plants must be found. Thin layer chromatography (TLC) is a method frequently used for differentiation of herbs. The results showed that the best eluent for doing separation of the chemical compound content of the sample was dichloromethane:chloroform = 32.5:67.5. This eluent was used to separate chemical compounds of herbs on TLC plates. The specific compounds were found differently on TLC plates. TLC results with visible light and ultraviolet detection at a wavelength of 254 and 366 nm indicated that each of the eight areas of medicinal plants in Java has a content characterized by the same band. Based on the characteristic band, temulawak contain two major components of curcuminoids, namely curcumin (Rf 0.4) and demethoxycurcumin (Rf 0.16), kunyit contains three major components namely curcumin (Rf 0.4), demethoxycurcumin (Rf 0.16), and bisdemethoxycurcumin (Rf 0.06), while the bangle contains curcumin (Rf 0.4) and other compounds with Rf 0.6 and Rf 0.31.
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Judul: Impact Tourism on Off Farm Business and Employment Opportunities in Coastal Area : Case in Pramuka Island, Pulau Panggang Village, Kepulauan Seribu Utara Subdistrict, Kepulauan Seribu
Abstrak: Sektor pariwisata memiliki peran yang signifikan dalam pembangunan perekonomian nasional. Terjadinya penurunan devisa dari sektor migas pada era 1980-1990an, mengakibatkan sektor pariwisata mulai diandalkan sebagai sumber penghasil devisa bagi negara. Kepulauan Seribu merupakan salah satu kawasan pesisir Indonesia yang memiliki potensi pariwisata. Salah satu pulau berpenduduk di kawasan Kepulauan Seribu yang belakangan mulai berkembang menjadi daerah pariwisata adalah Pulau Pramuka. Pulau Pramuka juga merupakan pusat pemerintahan Kabupaten Administrasi Kepulauan Seribu, sehingga pulau ini memiliki fasilitas-fasilitas yang lebih lengkap dibandingkan dengan pulau-pulau di sekitarnya dan menjadi daya tarik tersendiri bagi wisatawan. Perubahan-perubahan dalam kehidupan sosial ekonomi masyarakat dapat terjadi sebagai akibat adanya kontak-kontak langsung dengan hadirnya sektor pariwisata di Pulau Pramuka, dimana salah satu dampaknya adalah munculnya berbagai peluang usaha dan kerja yang dapat dimanfaatkan oleh penduduk sekitar.
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