Judul: . Klasifikasi Habitat Dasar Perairan Dangkal Gugusan Pulau Pari Dengan Menggunakan Citra Worldview-2 Dan Alos Avnir, Kepulauan Seribu, Dki Jakarta
Abstrak: Perairan laut tropis dangkal memiliki beberapa macam ekosistem yaitu terumbu karang, padang lamun, pantai berpasir dan mangrove, yang saling berinteraksi satu dengan yang lainnya. Tujuan penelitian ini adalah mengklasifikasikan habitat dasar komunitas bentik menggunakan citra WordlView-2 dan ALOS AVNIR di gugusan Pulau Pari. Tahapan yang dilakukan dalam penelitian ini meliputi pengumpulan data lapang di Gugusan Pulau Pari tanggal 28 Maret-1 April 2014 menggunakan GPS dan alat selam, analisis data, serta analisis penilaian akurasi dengan confussion matrix. Habitat dasar diklasifikasi transformasi Lyzenga menjadi 12 kelas. Hasil uji akurasi citra WorldView-2 sebesar (50,37%) dan citra ALOS AVNIR sebesar 57,8 %. Tutupan karang hidup tergolong sedang di bagian Selatan Pulau Pari, dengan nilai 35,62%. Kondisi tutupan substrat dasar yang tergolong buruk terlihat di bagian Timur Pulau Burung dan Utara Pulau Kongsi dengan nilai 19,03% dan 10,21%. Nilai IMK tertinggi terdapat di lokasi Utara Pulau Kongsi.
Keyword: habitat bentik, citra satelit, klasifikasi, terumbu karang, Pulau Pari

Judul: Distribusi Lamun dan Mangrove menggunakan Citra Satelit Worldview-2 di Gugus Pulau Pari, Kepulauan Seribu
Abstrak: Teknologi satelit penginderaan jauh mempunyai kemampuan untuk mengidentifikasi dan memantau sumberdaya alam dan lingkungan wilayah pesisir. Tujuan penelitian ini adalah mengetahui distribusi lamun dan mangrove menggunakan citra Satelit WorldView-2 di Gugus Pulau Pari, Kepulauan Seribu. Pengolahan citra menggunakan algoritma NDVI untuk mendeteksi vegetasi lamun dan mangrove, yang menghasilkan nilai NDVI dari -0,987 sampai 0,936. Survei lapang di padang lamun menggunakan transek 1 m x 1 m yang diletakkan secara acak, sedangkan untuk mangrove menggunakan transek 10 m x 10 m. Jenis lamun yang ditemukan adalah Cymodocea rotundata, Enhalus acoroides, dan Thalassia hemprichii, sedangkan jenis mangrove yang ditemukan adalah Rhizophora mucronata. Di Pulau Karang Kudus, Pulau Biawak, dan Pulau Pari jenis lamun yang dominan adalah Enhalus acoroides, sedangkan di Pulau Burung jenis lamun yang dominan adalah Thalassia hemprichii. Kerapatan rata-rata mangrove di Pulau Biawak adalah 13 ind/100 m2 dan Pulau Burung memiliki Rhizophora mucronata dengan kerapatan rata-rata 43 ind/100 m2. Rhizophora mucronata di Pulau Pari memiliki kerapatan rata-rata 22 ind/100 m2. Hasil klasifikasi citra WorldView-2 menunjukkan luas lahan untuk lamun sebesar 324.200 m2, sedangkan untuk mangrove jarang adalah 12.500 m2, mangrove sedang sebesar 32.700 m2 dan mangrove lebat sebesar 47.800 m2., Satellite remote sensing technology has the ability to identify and monitor natural resources and environment in coastal areas. The purpose of this research was to determine the distribution of seagrasses and mangroves using WorldView- 2 imagery in Pari Island, Kepulauan Seribu. NDVI image processing algorithm for detecting seagrasses and mangroves vegetation was applied, resulting in NDVI values of -0.987 to 0.936. Groundtruth survey on seagrasses was conducted haphazardly using transect plot of 1 m x 1 m, while for mangroves was 10 m x 10 m. Observed seagrass species were Cymodocea rotundata, Enhalus acoroides, and Thalassia hemprichii, while mangrove was Rhizophora mucronata. Karang Kudus Island, Biawak Island and Pari Island had dominant seagrass species of Enhalus acoroides, while in Burung Island was dominated by Thalassia hemprichii. Average mangroves density in Biawak Island was 13 ind/100 m2 and Burung Island has Rhizophora mucronata with average density of 43 ind/100 m2. Rhizophora mucronata in Pari Island had an average density was 22 ind/100 m2. Classification results of WorldView-2 showed the extent area for seagrasses was 324.200 m2, while for sparse mangrove was 12.500 m2, medium 32.700 m2 and dense 47.800 m2.
Keyword: penginderaan jauh, distribusi, lamun, lamun, Pulau Pari

Judul: Development of Potentially Functional Drink from Skimmed Milk Enriched with Red or Black Variety Rice Bran
Abstrak: Rice bran is a good source of antioxidants such as polyphenol compounds that are potentially formulated in skimmed milk drink. The objectives of this research were to develop potentially functional drink from skimmed milk enriched with red or black variety rice bran and to evaluate their physical, chemical and sensory qualities. The milk drinks were formulated with skimmed milk (95%) and sucrose (5%) as fixed formula. Considering the result of preliminary research, the addition of red or black variety rice bran at amount of 4, 6, 8% (w/w) and carboxy methyl cellulose (CMC) at amount of 0, 0.05, 0.1% (w/w) were based on fixed formula and water addition in ratio 4:1 (w/w) of water weight and total weight of skimmed milk powder, sucrose, rice bran, and CMC. The milk drink formula was selected based on total phenolic content (TPC), total anthocyanin content (TAC) and its antioxidant activities using DPPH and FRAP assay. Two selected formulas were characterized in terms of physical properties (viscosity and colour), chemical properties (pH, total soluble solid, and proximate), and sensory evaluation by rating hedonic. Red and black variety rice bran had high TPC with amount 512.19±43.91 and 1247.56±196.34 mg GAE/100 g, TAC with amount 1.94±0.19 and 40.69±4.21 mg C-3-G/100 g, respectively. Red and black variety rice bran also showed antioxidant activity based on DPPH assay (106.68±13.49 and 209.93±19.75 mmol Trolox/100 g, respectively) and FRAP assay (8.04±0.39 and 14.66±0.56 mmol FeSO4/100 g, respectively). The milk drink enriched with red variety rice bran, the highest content of TPC (33.83±1.00 mg GAE/100 mL), TAC (1.86±0.32 mg C-3-G/L), and antioxidant activities of DPPH (83.38±1.37 mmol Trolox/100 mL) and FRAP (0.43±0.01 mmol FeSO4/100 mL) by addition of 8% red variety rice bran and 0.05% CMC. The milk drink enriched with 8% black variety rice bran and 0.1% CMC showed the highest values in TPC (39.61±0.11 mg GAE/100 mL), DPPH (196.22±3.77 mmol Trolox/100 mL), FRAP (0.63±0.07 mmol FeSO4/ 100 mL) and TAC (5.53±0.03 mg C-3-G/L). Furthermore, the proximate analysis showed that the selected drinks had low fat content and high fiber content. Both milk drinks also were moderately liked on overall liking attribute. Based on its TPC, TAC and antioxidant activities, these milk drinks enriched with black and red variety rice bran are potentially developed as functional drinks.
Keyword: antioxidant activity, black and red variety rice bran, functional milk drink, skimmed milk