Judul: Keanekaragaman Jenis Ikan Air Tawar di Sungai-sungai yang Berasal dari Gunung Salak
Abstrak: Approximately 50 river flow from Salak Mountain passed Bogor and Jakarta is Ciliwung and Cisadane river. Sampling period from January until March 2012, on 11 sampling sites of 7 rivers. We found 6 ordo, 9 family, and 13 species of fish. Ten species are native fish and 3 species are introduction fish. Cypriniformes are dominant ordo found at all sampling sites. Ordo Cypriniformes with 2 family, is Cyprinidae (Barbodes gonionotus, Rasbora aprotaenia, Puntius sp., and Puntius binotatus) and Balitoridae (Nemacheilus fasciatus). Ordo Siluriformes with 3 family, is Clariidae (Clarias teijsmanni), Loricariidae (Hypostomus plecostomus), and Sisoridae (Glyptothorax platypogon). Ordo Perciformes that found one family Channidae (Channa striata), Ordo Beloniformes found one family Hemiramphidae (Dermogenys pusilla), Ordo Synbranchiformes is family Mastacembelidae (Macrognathus maculatus), Ordo Cyprinodontiformes with 2 species (Xiphophorus helleri and Poecilia reticulata).
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Judul: Keanekaragaman Jenis Udang Air Tawar di Sungai-Sungai yang Berasal dari Gunung Salak
Abstrak: Freshwater prawn is a crustacean that has an important role in maintaining the balance of freshwater ecosystems. Biodiversity of freshwater prawn research was conducted in the rivers where upstream on Salak Mountain, Bogor, West Java. This study was aimed to find out information on species biodiversity of freshwater prawn in rivers where come from Mount Salak. Sampling stations were 11 points in the rivers where upstream on Mount Salak by road sampling. There was three species of freshwater prawns, namely Macrobrachium lanchesteri (3 specimens), M. empulipke (6 specimens), and M. sintangense (50 specimens). M. sintangense, most commonly found species, mainly found in the slow water with mud substrate. M. empulipke found in rocky habitats with faster water flow, while M. lanchesteri alien species that was found in swift water stream. This species can survive in extreme conditions and could be a superior competitor for local spesies
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Judul: Pengikatan Gluten Pada Tepung Mocaf Dalam Upaya Perbaikan Kualitas Adonan Tepung Mocaf.
Abstrak: Upaya pengikatan tepung mocaf dengan gluten dilakukan untuk menghasilkan tepung mocaf dengan kualitas adonan yang lebih baik. Penelitian ini bertujuan untuk menghasilkan tepung mocaf terikat gluten serta mengevaluasi pengaruh faktor suhu pemanasan (X1) dan konsentrasi penambahan gluten (X2) dengan menggunakan Rancangan Acak Lengkap Faktorial (RALF). Pengikatan dilakukan dalam larutan basa dengan perlakuan panas pada suhu 50, 55, dan 60 oC dengan penambahan gluten sebanyak 10%, 20%, dan 30%. Hasil penelitian menunjukkan tepung mocaf – gluten yang diikat pada suhu 55 ⁰C dengan penambahan gluten sebanyak 30% memiliki kadar protein dan baking expansion tertinggi sebesar 19.77% dan 2.78 mL/g. Swelling power tepung menurun seiring penurunan daya serap tepung terhadap air. Sifat birefringence tepung mocaf – gluten semakin menghilang seiring dengan peningkatan suhu pemanasan. Analisa FTIR tepung mocaf – gluten menunjukkan adanya penguatan puncak spektrum ikatan C – N pada panjang gelombang 1167–1159 cm-1 yang dapat berasal dari penambahan gluten dan adanya ikatan antara tepung mocaf dengan gluten.
Keyword: baking expansion, FTIR, gluten, mocaf, pengikatan