Judul: Identifikasi dan Biologi Kutudaun [Homoptera : Aphididae] Pada Brassicaceae Liar Nasturium heterophyllum BL, Nasturtium indicum (L.) DC dan Cardamine hirsuta L.
Abstrak: Penelitian ini bertujuan mengidentifikasi kutudaun (Homoptera : Aphididae) yang hidup pada tumbuhan liar yaitu N. heterophyllum, N. indicum dan C. hirsuta, mengamati morfologi, siklus hidup, keperidian, lama hidup imago, preferensi dan pertumbuhan populasi kutudaun tersebut pada ketiga spesies tumbuhan di atas.
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Judul: Identifikasi Spesies, Karakteristik Koloni dan Kunci Identifikasi Kutudaun (Hemiptera: Aphididae) pada Tanaman Hias di Daerah Bogor dan Cianjur
Abstrak: Kutudaun merupakan kelompok serangga hama yang memiliki kisaran inang yang sangat luas. Hampir seluruh tanaman hias merupakan inang dari kutudaun. Kerugian yang ditimbulkan oleh kutudaun sebagai hama berkisar antara 6-25%, sedangkan sebagai vektor virus tanaman dapat mencapai lebih dari 80%. Informasi mengenai taksonomi dan karakteristik koloni kutudaun pada tanaman hias di Indonesia masih sangat terbatas. Penelitian ini bertujuan untuk mengetahui jenis dan karakteristik kutudaun pada tanaman hias di Bogor dan Cianjur. Pada pengamatan terhadap koloni, jumlah kutudaun bersayap dan tidak bersayap dihitung dan jenis semut yang berasosiasi pada koloni diidentifikasi. Kutudaun yang ditemukan dibuat preparat slide dan diidentifikasi. Gambar karakter morfologi kutudaun yang ditemukan digunakan untuk membuat kunci identifikasi berdasarkan gambar (pictorial key). Sebanyak 10 spesies kutudaun ditemukan pada 29 spesies tanaman hias di Bogor dan Cianjur yaitu Aphis gossypii, Astegopteryx nipae, Aulacorthum solani, Greenidea psidii, Indomegoura indica, Macrosiphum euphorbiae, Myzus persicae, Neomyzus circumflexus, Toxoptera aurantii dan T. odinae. Tiga spesies diantaranya belum pernah dilaporkan pada tanaman hias di Indonesia, yaitu I. indica, M. euphorbiae dan N. circumflexus. Sebagian besar kutudaun yang ditemukan merupakan kutudaun tidak bersayap. A. gossypii adalah spesies kutudaun yang paling sering ditemukan pada tanaman hias. Famili Acanthaceae merupakan tanaman inang yang paling banyak terserang kutudaun. Jenis semut yang ditemukan berasosiasi dengan kutudaun pada tanaman hias adalah Dolichoderus thoracicus, Lepisiota sp., Myrmicaria sp. dan Pheidole sp.. Kunci identifikasi berdasarkan gambar dari 10 kutudaun yang ditemukan pada tanaman hias di Bogor dan Cianjur telah dibuat dan dapat digunakan oleh siapapun yang memerlukan.
Keyword: kutudaun, tanaman hias, identifikasi morfologi, kunci identifikasi

Judul: Production and formulation of methyl ester sulfonate-based surfactant from palm olein for enhanced oil recovery application
Abstrak: The remaining oil in a reservoir that cannot be produced using the natural driving force (primary recovery) is about 50 to 80% of the initial oil volumes (IOIP). A secondary recovery technique such as waterflooding can only increase the recovery as much as 5 to 20% of the IOIP. Therefore, a method known as Enhanced Oil Recovery (EOR) has to be implemented in the reservoir in the effort to recover much more oil. One of the EOR methods is surfactant injection. The injection of surfactant solution is aimed to significantly reduce the capillary forces in the reservoir by lowering the oil-water interfacial tension within the pore spaces. Once the capillary force is diminished, the reservoir oil is much easier to be displaced and moved toward the production wells. This is an excellent opportunity to develop a type of vegetable oil-based surfactants. One of potential surfactant types to develop is methyl ester sulphonate surfactant (MES). This study was aimed at producing MES surfactant and formula-based methyl ester sulfonate surfactant from palm olein to be applied for in the process of improving oil recovery using carbonate formation fluids. Results of the study showed that the best condition was achieved in a sulphonation process done in 3-4 hours with the flowrate of dry air of 1.8 kg/hour and a purification performed without the addition of methanol in a pH of 8. The best MES surfactant-based formula for EOR applications on the formation of carbonate was the one with the composition of 0.3% MES surfactant, 0.3% Na2CO3, and 15,000 ppm salinity. MES surfactant produced from this formula had more heat resistance, higher salinity, and higher hardness than the commercial surfactants did. Results of the performance test of surfactant-based formula showed that the MES surfactant formula was compatible with formation water and injection water. The formed phase was a lower phase which was relatively stable on a heating up to day 77 (reservoir temperature of 70 and 112 °C) with a range of interfacial tension of 10-2 dynes/cm. The adsorption reached 152.86 μg active matter/g core and the incremental oil recovery using synthetic core of 8-19% and using native core of 9.1%. Surfactant solution coreflooding test with bottom-up flow direction resulted in a greater oil recovery (16%) than that with top-down flow direction. This was caused by the influence of gravity.
Keyword: Palm Olein