Judul: Karakteristik dan efektivitas penetrasi kafein terjebak dan tersalut nanopartikel kitosan sebagai antiselulit
Abstrak: Chitosan used as drug carrier because of is natural polycationic and easily modified in chemical and physical properties. In this research chitosan was chemically modified by coating and entrapping anti-cellulite active substance of caffeine and physically modified by minimizing chitosan particle size into nanoparticles size. The purpose of this research is to characterize the chitosan nanoparticles from its morphology, particle size, function of group, the value of adsorption efficiency, and effectiveness of chitosan nanoparticles against in vitro penetration of caffeine as anti-cellulite using Franz diffusion cell. The morphology characterization test of caffeine trapped in chitosan nanoparticles and caffeine coated by chitosan nanoparticles resulting a smooth surface, slight convex shape, and agglomerated particles; average size of particles are 232.74 nm and 226.62 nm respectively; the function group showed a shift of wave number of amide III groups (-CN) and hydroxyl groups (-OH); the caffeine adsorption efficiency are 51,35% and 64,63% respectively. The result of effective penetration are 1.089.65 ± 10.7 μg/cm2 and 2.170.03 ± 6.85 μg/cm2 respectively.
Keyword: chitosan nanoparticles., chitosan, caffeine, anti-cellulite

Judul: Effect of nanoencapsulation on the sensory, physicochemical, and functional quality of Java Tea Base Functional Drink
Abstrak: This study aimed to determine the effect of nanoencapsulation on the physicochemical and functional qualities of functional drinks based on Java-tea. Polysaccharide C nanoparticles were prepared by ionic gelation method using compound D as crosslinker. The initial experiment was conducted to obtain particle size below 300 nm with low polydispersity index and suitable flavor. Polyssaccharide C nanoparticles-drink was then analyzed for its physicochemical and functional qualities. The result showed that the polyssacharide C nanoparticles-drink had z-average diameter size 223.4 nm, polydispersity index 0.183, and zeta potential 18.28 mV which had significantly effect on physicochemical and functional of functional drink based on Java-tea compared to non-nanoparticles-drink (increasing pH value (3.94), total dissolved solid (4.5 obrix), refractive index (1.3395), viscosity (17.83 cP), lightness (L=71.75), hue (a=-2.47), hedonic rating (5.27 of 9 scale), sweetness (11.28 of 15 scale), foam volume 415 ml; decreasing particle size, polydispersity index, saturation (b), the intensity of sourness, and bitterness). Measurements of antioxidant activity and inhibition of α-glucosidase by utilizing in vitro method might not shown a credible result. Polyssacharide C nanoparticles showed as a potential capability to improve functional drink based on Java tea.
Keyword: nanoencapsulation, ionic gelation, physicochemical, functional drink, polyssacharide C

Judul: Ekologi merak hijau jawa (Pavo muticus muticus) Linnaeus 1758 pada beberapa tipe habitat di Ujung Timur Penyebarannya Jawa Timur, Indonesia
Abstrak: Merak hijau jawa merupakan salah satu jenis burung yang dilindungi.di Indonesia berdasarkan SK Mentan No 66/Kpts/Um/2/1973 dan Peraturan Pemerintah Republik Indonesia No 7 tahun 1999. Menurut ICBP (The International Council for Bird Preservation) merak hijau sebagai jenis burung yang tergolong terancam secara keseluruhan (globally threatened) baik populasi maupun habitatnya, sedangkan CITES mencantumkan merak hijau ke dalam Appendix II, merak hijau dari alam tidak bisa langsung diperdagangkan dan BirdLife International (2007) memasukkan golongan burung yang endangered. Tekanan terhadap populasi dan habitat merak hijau jawa sangat besar, sehingga kondisi populasinya menurun pada setiap penyebaran lokalnya, habitatnya terfragmentasi bahkan terisolasi. Tekanan terhadap populasi terutama karena perburuan liar. Namun demikian fakta menunjukan bahwa merak hijau jawa masih ada (exist), hal ini memberikan gambaran bahwa burung ini tentunya memiliki strategi ekologi tertentu untuk tetap bertahan hidup di alam pada berbagai tipe habitat.
Keyword: Pavo muticus muticus, Call count transect method, Pavo cristatus, Pavo muticus, Pavo muticus spicifer, Pavo muticus imperator, Pavo muticus muticus, Javan Green Peafowl, East Java