Judul: Inventarisasi Sampah Laut (Marine Debris) di Padang Lamun Pulau Pramuka, Kepulauan Seribu.
Abstrak: Pulau Pramuka sebagai pusat pemerintahan Kabupaten Administratif Kepulauan Seribu, merupakan pulau pemukiman yang padat penduduk, serta menjadi daerah tujuan wisata. Tingginya aktivitas penduduk setempat dan wisatawan dapatmenghasilkan sampah laut dengan jumlah besar dan berdampak terhadap ekosistem lamun. Penelitian ini bertujuan untuk mengetahui karakteristik sampah laut (marine debris) yang ditemukan di habitat padang lamun Pulau Pramuka. Survey lapang meliputi pengamatan struktur komunitas lamun, parameter fisika kimia perairan, dan inventarisasi sampah laut (marine debris) di 3 stasiun di Pulau Pramuka. Dari lokasi pengamatan ditemukan sebanyak 6 spesies lamun yaitu, Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, Cymodocea rotundata, Halophila ovalis dan Syringodium isoetifolium dengan tutupan antara 1,67-47,32%, sedangkan kerapatannya 28-112,76 ind/m2. Sampah laut yang ditemukan dapat diklasifikasikan menjadi 6 jenis yaitu, plastik, logam/metal, karet, kaca, materi organik dan lain–lain. Bobot sampah laut setiap jenis berkisar antara 0,03–2,38 kg sedangkan mikroplastik yang ditemukan terdiri dari jenis fiber, film dan fragmen dengan kelimpahan 20–440 partikel/kg. Kesimpulannya, sampah laut yang diamati pada padang lamun Pulau Pramuka didominasi oleh mikroplastik fiber yang berasosiasi dengan padang monospesifik Thalassia hemprichii, sedangkan padang campuran Enhalus acoroides dan Cymodocea rotundata berasosiasi dengan mikroplastik film dan fragment.
Keyword: Pulau Pramuka, amun, mikroplastik, padang lamun, sampah laut

Judul: Macrozoobenthos Community Structure in the Intertidal Ecosystem of Pramuka Island, Seribu Islands
Abstrak: Aktivitas antropogenik yang ada di Pulau Pramuka berpotensi memberikan dampak terhadap kondisi perairan ekosistem intertidal, termasuk komunitas benthic. Penelitian ini bertujuan menganalisis komunitas makrozoobenthos pada ekosistem intertidal Pulau Pramuka. Pengambilan contoh dilakukan sebanyak tiga kali pada bulan Oktober-November dengan tiga titik stasiun. Pengambilan contoh makrozoobenthos dilakukan dengan metode transek kuadrat. Analisis Indeks Bray-Curtis digunakan untuk melihat pengelompokan stasiun. Hubungan makrozoobenthos dengan parameter kualitas air dianalisis menggunakan Principal Component Analysis (PCA). Jenis makrozoobenthos yang ditemukan terdiri dari tujuh kelas dan 38 genera. Makrozoobenthos dari Kelas Bivalvia, Gastropoda, dan Polychaeta merupakan jenis yang banyak ditemukan. Ekosistem intertidal yang dekat dengan permukiman memiliki keanekaragaman jenis yang tinggi dan distribusi individu antarjenis yang merata, sedangkan ekosistem intertidal di daerah pembuangan IPAL menunjukkan keanekaragaman jenis rendah dengan distribusi individu yang tidak merata dan terdapat dominansi. Pengelompokan stasiun berdasarkan kepadatan jenis makrozoobenthos antarstasiun terbentuk tiga kelompok stasiun. Kata Kunci: intertidal, keanekaragaman, makrozoobenthos, Anthropogenic activities in Pramuka Island have the potential to impact the condition of intertidal ecosystem waters, including benthic communities. This study aims to analyze the macrozoobenthos community in the intertidal ecosystem of Pramuka Island. Sampling was conducted three times in October-November with three station points. Sampling of macrozoobenthos was done by quadrat transect method. Bray-Curtis Index analysis was used to see station grouping. The relationship between macrozoobenthos and water quality parameters was analyzed using Principal Component Analysis (PCA). Macrozoobenthos species found consisted of seven classes and 38 genera. Macrozoobenthos from Bivalve, Gastropoda, and Polychaeta classes are the most common species found. Intertidal ecosystems close to settlements have high species diversity and even distribution of individuals between species, while intertidal ecosystems in the WWTP disposal area show low species diversity with uneven distribution of individuals and dominance. Station grouping based on the density of macrozoobenthos species between stations formed three groups of stations. Keywords : diversity, intertidal, macrozoobenthos
Keyword: struktur komunitas, Intertidal, Makrozoobenthos

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