Judul: Antiatherosclerosis capacity of zn-chlorophyll derivatives from cassava leaves (Manihot esculenta Crank) on experimental rabbit
Abstrak: Green vegetables contain much chlorophyll which has a potency as functional component of fwd. Previous studies showed that chlorophyll could act as antioxidant, anticancer, anti-inflammation, antigenotoxic, anticlastogenic, and antimutagenic. There are no reports on the toxic effect of chlorophyll or its derivatives in humans. The objectives of this research were (1) to determine the chlorophyll content of some green vegetables; (2) to study the formation of zinc (Zn) complex of chlorophyll derivatives at 4 levels of ion Zn2'; (3) to study the physical characteristics of Znchlorophyll derivatives; (4) to study the effect of Znchlorophyll derivatives on atherosclerosis of experimental rabbits; and (5) to study the effect of Zn-chlorophyll derivatives on the histopathological change in the liver and kidney of experimental atherosclerotic rabbits. The hypothesis of the research were (1) the color of Zn-chlorophyll derivatives was more stable and bright than native chlorophyll; (2) Zn-chlorophyll derivatives could prevent increasing of serum cholesterol level of experimental rabbits; (3) Znchlorophyll derivatives could prevent the fomation of lession on aorta of experimental rabbits; and (4) Znchlorophyll derivatives could prevent the development of fatty liver and protein precipitation on glomerular of experimental rabbit's kidney. The research was divided into four stages, that were, (1) determination of chlorophyll content of 10 kinds of green vegetables and 2 kinds of grasses, (2) extraction of chlorophyll from cassava leaves, preparation of chlorophyll derivatives and production of complex of Zn-chlorophyll derivatives, (3) evaluation of serum lipid profile of experimental rabbits given feed containing complex powder of Zn-chlorophyll derivatives, and (4) evaluation of lession on aorta and histopathological evident in the liver and kidney of experimental rabbits given feed containing complex powder of Zn-chlorophyll derivatives. The chlorophyll content of 10 kinds of green vegetables and 2 kinds of grasses (Amaranthus tricolor, lpomoea aqualytica, Manihot esculenta, Saumpus androgynus, Brassica chinensis, Vigna anguiculata, Phaseolus vulgaris, Pilea trinervia, Lactuca sativa, Ocinum americanum, Pennisetum purpureum and lmperata cylindrica) were analysed. The result of analysis showed that cassava leaves have highest chlorophyll content (3967.5 pglg) than others green vegetables (224.6 - 2202.0 pglg) and grasses (2326.3 - 2673.2 pglg). Therefore, chlorophyll was extracted from fresh cassava leaves usiqg ethanol 95%, and then a complex of Zn-chlorophyll derivatives was made. Zn-chlomph~ll derivatives were made by adding 0 ppm, 100 ppm, 150 ppm and 200 ppm of ion Zn ' as Zn-acetate dihydrate ((CH3C00)2Zn.2Hz0) to chlorophyll extract. After addition of dextrin, powder of Znchlorophyll derivatives were obtained by spray drying. Added 200 ppm of ion zn2' to chlorophyll extract yielded the best characteristics (color, water content, ash content, total zinc content, pH, and solubility) of Zn-chlorophyll derivatives
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Judul: Identification of Leaf Agronomic and Physiological Characters of Several Genotypes of Cassava (Manihot esculenta Crantz)
Abstrak: Daun ubi kayu menjadi salah satu sayur konsumsi harian sehingga peningkatan kualitas dan kuantitas daun ubi kayu perlu dilakukan melalui pemuliaan tanaman dengan peningkatan keragaman ubi kayu. Departemen AGH IPB memiliki beberapa genotipe mutan stabil hasil iradiasi sinar gamma yang berpotensi menjadi varietas baru penghasil daun. Tujuan penelitian ini untuk memilih genotipe unggul tanpa merusak daun melalui pembelajaran karakter agronomi dan fisiologi daun beberapa genotipe ubi kayu serta mempelajari korelasi antara kandungan klorofil dengan hasil klorofil meter SPAD (Soil Plant Analysis Development). Penelitian dilakukan dengan mengamati tinggi tanaman, lebar tanaman, indeks luas daun (ILD) daun ke-5, jumlah cabang dan tingkat hijau daun pada 35 genotipe yang berasal dari 6 tetua. Genotipe unggul yang diperoleh melalui pengolahan hasil pengamatan antara lain G2D12223 (tanaman asal Ratim), G3D2413 (tanaman asal UJ-5), G21533 dan G31515D (tanaman asal Gajah). Keempat genotipe tersebut diuji kandungan klorofil untuk melihat pengaruh genotipe pada klorofil dan korelasi antara tingkat hijau daun hasil SPAD dengan kandungan klorofil. Hasil uji anova dan uji lanjut menunjukkan genotipe memberikan pengaruh pada tingkat hijau daun, klorofil b, rasio klorofil a:b dan karoten. Genotipe yang unggul adalah G31515D untuk semua karakter kecuali rasio klorofil a:b dan G21533 untuk karakter rasio klorofil a:b. Hasil uji korelasi menunjukkan tingkat hijau daun berkorelasi nyata terhadap total klorofil, klorofil a, klorofil b, rasio klorofil a:b dan karoten sedangkan antosianin tidak berkorelasi dengan semua karakter uji lainnya. Kata kunci: cassava, dikotil, genotipe, karoten, klorofil, Cassava leaves are one of the vegetables for daily consumption so the quality and quantity of cassava leaves should be improved through plant breeding by increasing the diversity of cassava. The AGH Department of IPB has several stable mutant genotypes resulted from gamma-ray irradiation which have the potential to become new leaf-producing varieties. The purpose of this study was to select superior genotypes without damaging the leaves through studying the agronomic and physiological characters of several cassava genotypes and studying the correlation between chlorophyll content and the results of the chlorophyll meter SPAD (Soil Plant Analysis Development). The research is conducted by observing plant height, plant width, leaf area index (LAI) of the 5th leaf, number of branches, and leaf green level in 35 genotypes from 6 parents. The superior genotypes obtained through processing the observations included G2D12223 (plants from Ratim), G3D2413 (plants from UJ-5), G21533, and G31515D (plants from Gajah). The four genotypes were tested for chlorophyll content to see the effect of the genotype on chlorophyll and the correlation between the green level of the leaves from the SPAD results and the chlorophyll content. ANOVA test results and further tests showed that the genotype affected the level of leaf green, chlorophyll b, the ratio of chlorophyll a: b and carotene. The superior genotype was G31515D for all characters except chlorophyll a: b ratio and G21533 for chlorophyll a: b ratio characters. The results of the correlation test showed that the level of leaf green was significantly correlated with total chlorophyll, chlorophyll a, chlorophyll b, the ratio of chlorophyll a: b, and carotene, while anthocyanin is not correlated with all other test characters. Keywords: cassava, chlorophyll, carotene,
Keyword: cassava, chlorophyll, carotene, dicotyledoneae, genotype

Judul: Pola Pernikahan Masyarakat Batak Karo di Perantauan
Abstrak: Pernikahan adalah budaya yang tidak akan pernah berhenti, pernikahan akan terjadi secara berkelanjutan Dasarnya, karena pernikahan merupakan kebutuhan biologis manusia. Indonesia adalah negara yang kaya akan budaya dan etnis. Setiap suku di Indonesia mempunyai tata cara/adat istiadat dalam pelaksanaan pernikahan itu sendiri. Begitupun dengan suku Batak karo yang mempunyai sendiri tata cara pelaksanaan pernikahan. Seiring dengan perkembangan zaman Karo Banyak masyarakat yang merantau ke berbagai daerah di Indonesia, salah satunya Bogor berjalan-jalan. Masyarakat Karo yang merantau ke wilayah Bogor pada umumnya akan berusaha melakukan adaptasi ke negara tempat tinggal baru. Keadaan ini juga terjadi pada perkawinan Karo dalam pola adaptasi di Bogor. Namun adaptasi pernikahan masyarakat Karo di Bogor berupaya menjaga nilai-nilai budaya Karo dan sakralisme perkawinan. Mereka do Karo Dimodifikasi pada pola perkawinan, dengan tetap menjaga nilai budaya pernikahan.
Keyword: Weddings Karo, Adaptation marriage patterns, Attitudes