Judul: Pengkajian Kemasan Karton Untuk Transportasi Buah Alpukat (Persea Americana, Mills).
Abstrak: During transportation and storage the packages produce faces numerous hazards, these may be mechanical, environmental, or biological. Mechanical hazards can be defined as those caused by impact, vibration, compression and puncturing. This research to study using the Cartons for transportation avocado and how interaction with the material substance the carton and the temperature of storage to keep the quality of avocado during simulation transportation. Factorial completely randomized design with two treatments of size cartons (capacity 7 Kg and capacity 15 Kg to packaging the avocado), tree treatments of the material substance the carton (cut of newspaper, the newspaper that wrap every avocado and nothing the material substance the carton ), and two treatments of temperature storage (5oC and 28oC). After the packaging, the avocado do simulation transportation with vibration table during 2 hours with the amplitude 3.2 cm and frekfuensi 3.4 Hz . After the simulation transportation the avocado experience to sorting, then avocado have storage at 5oC and 28oC. The quality parameter have to measure are mechanical hazard, reduction of weigh, hardness, and content of sugar. The research show that the size cartons, kinds of the material substance the carton and temperature of storage have different Mechanical hazards, reduction of weigh, hardness, and content of sugar. The result from simulation transportation show that the packaging with carton where capacity 7 Kg, using the cut of newspaper, and storage in 5oC are the best packaging to transportation the avocado in long distance, in stone of road as well as the road.
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Judul: Rancangan Kemasan Tunggal dengan Bahan Pengisi untuk Transportasi Buah Alpukat (Persea Americana, Mill)
Abstrak: Alpukat pada saat pendistribusian rentan terhadap kerusakan fisik, diperlukan upaya untuk mempertahankan kualitas produk sekaligus mengurangi susut yang terjadi akibat penurunan kualitasnya. Oleh karena itu penelitian ini bertujuan merancang kemasan tunggal dengan bahan pengisi yang sesuai dan dapat mengurangi kerusakan buah alpukat selama transportasi dan distribusi. Kemasan yang dirancang pada penelitian ini memiliki dimensi outer sebesar (33 x 24 x 14) cm dan dimensi inner sebesar (16 x 23 x 13) cm dimana buah yang digunakan memiliki diameter 6.6-7.7 cm dan tinggi 9.3-11.9 cm dengan jumlah inner 2 buah setiap outer. Hasil rancangan menggunakan karton bergelombang flute C untuk kemasan outer dan flute B untuk kemasan inner dengan tipe kemasan RSC. Ventilasi yang digunakan sebesar 1% dari luasan dinding kemasan. Kemasan dengan bahan pengisi net buah KP2 memiliki nilai kerusakan yang paling rendah yaitu 13.88% disebabkan net buah yeng memiliki sifat yang cukup elastis pada saat terjadi gesekan dengan kemasan. Dapat disimpulkan kemasan dengan bahan pengisi net buah, mampu mempertahankan mutu buah alpukat saat transportasi dan distribusi.
Keyword: alpukat, kemasan inner, kemasan outer, transportasi, ventilasi

Judul: Sintesis dan Pencirian Senyawa 4-Dodekanadioilbis(1-fenil-3-metil-5-pirazolon) sebagai Ionofor untuk Penentuan Ion Lu3+ dengan Teknik Elektrode Selektif Ion
Abstrak: Ion selective electrode (ISE) as an alternative potentiometric method is used widely in determining Lu3+. The success of this method depends on the ionophor used on the ISE. The compound of 4-dodecanedioylbis(1-phenyl-3-methyl-5-pyrazolone) or H2DdBP as pyrazolone derivatives will be used as ionophor on ISE-Lu3+. H2DdBP had been successfully synthesized by Jensen’s method. This method involved reaction of 1-phenyl-3-methyl-5-pyrazolone and dodecanedioyl chloride in basic condition. A compound was produced as a solid substance and was purified by recrystallization using chloroform-ethanol. High performance liquid chromatogram showed that the compound was pure. The compound was in keto form with melting point range of 150-152ºC. Infrared spectra showed vibration peaks (cm-1) were 3451 (br, OH), 1624 (s, C=O), 1589 (s, phenyl C=C), 1558 (s, pyrazolone ring). Chemical shifts (Hz) for 1H-NMR were 7.81–7.84, 7.43–7.46, 7.26–7.290 (m, 10H, Ph); 2.72–2.75 (t, 4H, (CH2)2); 2.47 (s, 6H, CH3); 1.71–1.76 (m, 4H, (CH2)2); 1.32 (m, 12H, (CH2)6). All of these properties showed the characteristics of H2DdBP. Nernst factor of ISE-Lu3+ for two repetitions were 10.40 mV/decade and 8.60 mV/decade which showed that ISE-Lu3+ had good response in determining Lu3+.
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