Judul: Prevalensi Infestasi Parasitoid pada Ulat Sutera Liar Attacus atlas (Lepidoptera: Saturniidae) di Perkebunan Teh Kabupaten Purwakarta
Abstrak: The purpose of this research was to study of prevalence infestation of parasitoids to Attacus atlas (Lepidoptera: Saturniidae), characteristic of the pupae parasitoids discharge, species of parasitoid, and infestation of parasitoid. The results showed the prevalence of parasitoids on A. atlas in the tea plantation Purwakarta Regency was 29.61%. There were three species of parasitoid obtained, i.e. (1) Xanthopimpla gampsura (Hymenoptera: Ichneumonidae) with a prevalence of 21.23%, this parasitoid were make a hole in the anterior pupae (5.39 ± 0.49 mm); (2) Theronia sp. (Hymenoptera: Ichneumonidae) with a prevalence of 6.15%, with hole located anterior (2.75 ± 0.21 mm), lateral (2.67 ± 0.29 mm), and the anterior-lateral holes in one pupae (2.7 ± 0.21 mm), and Parasitoid (3) Exorista sorbillans (Diptera: Tachinidae) with the prevalence of 2.23%. There were 5-8 larva of E. sorbillans / pupa of A. atlas.
Keyword: tea plantation, prevalence, parasitoid, Attacus atlas, Bogor Agricultural University (IPB)

Judul: Eksplorasi Potensi Limbah Imago Ulat Sutera Liar Attacus atlas (Lepidoptera: Saturniidae)
Abstrak: Wild Silkworm Attacus atlas is an Indonesian native germplasm from Aceh to Papua. Cultivation of wild silkworm Attacus atlas has started in line with the high market demand on the caterpillar cocoon. The purpose of this study was to determine the potential of imago waste produced by cultivation of wild silkworm Attacus atlas as a source of alternative feed ingredients and the potency as antimicrobial. Proximate analysis was done to find out nutrition in imago of Attacus atlas, antimicrobial testing using the disk method. The results of the proximate analysis test imago silkworm Attacus atlas shows that the imago contains 75.57% protein, 5.94% fat, 3.80% ash, and 14.64% crude fiber from dry matter. Attacus atlas imago extract is brown, gel, fat as a potential source of animal fat. Antimicrobial test from 96% ethanol extract of imago Attacus atlas with the disk method showed no antibacterial activity against Escherichia coli, Pseudomonas, Streptococcus, and Staphylococcus.
Keyword: nutrition content, imago, antimicrobial, Attacus atlas, Bogor Agricultural University (IPB)

Judul: Membran Komposit Kitosan-Zeolit untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Direct methanol fuel cell (DMFC) is a fuel cell that utilize methanol as the fuel source. The electrolyte membrane used in the DMFC system in this research was chitosan-zeolite composite membrane. The composite membrane was synthesized with chitosan-zeolite composition variation of 1:1, 1:2, 1:3, and 2:1. The membranes were analyzed by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope, and for the specific gravity. Membrane performances were tested with methanol uptake, methanol permeability, conductivity, and potential difference in the DMFC system. The FTIR spectrum showed no formation of new functional groups inducating that the composite membrane was a result of physical mixing. Morphological analysis showed that the membrane was nonporous. Chitosan-zeolite 1:3 composite membrane had the highest specific gravity and methanol uptake, 1.4226 g/mL and 41.44%, respectively. The highest proton conductivity was showed by the 1:2 chitosanzeolite composite membrane, namely 7.2946× 10-7 S/cm. Based on this research results, chitosan-zeolite composite membrane can be applied in DMFC system.
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