Judul: Cysteine Isolation of Sheep (Ovis arles) Wool by Acid Hydrolysis and Separation According to Isoelectric pH
Abstrak: Sistein merupakan asam amino yang banyak digunakan dalam industri obat-obatan, kosmetik, pakan hewan, dan industri pangan yang banyak dipertanyakan dari segi kehalalannya. Sistein yang harganya murah umumnya didapatkan dari rambut manusia yang tidak halal untuk dikonsumsi. Sistein sendiri banyak terdapat pada rambut makhluk hidup dan dapat diisolasi dari hewan yang halal seperti domba. Untuk dapat menggunakan bulu domba sebagai sumber sistein, maka diperlukan penelitian mengenai cara isolasi, pemisahan, dan karakterisasi sistein dari bulu domba. Penelitian ini bertujuan mengisolasi sistein dari bulu domba dengan cara hidrolisis asam dan melakukan pemisahan sistein dari bulu domba dengan pH isoelektrik. Pemisahan dengan pH isoelektrik dilakukan dengan titrasi menggunakan NaOH 0.05 M dan 0.5 M. Sistein berhasil diisolasi dengan metode hidrolisis asam dan pemisahan dengan pH isoelektrik. Namun, pemisahan hanya berhasil pada titrasi menggunakan NaOH 0.05 M yang ditunjukkan dengan adanya gugus amino (1056.91, 1110.92, dan 1164.92), karboksilat (1373.22) dan gugus R asam amino sistein yaitu sulfur (609.46 dan 702.04) pada hasil analisis FTIRnya., Cysteine is an amino acid that is widely used in the pharmaceutical, cosmetic, animal feed, and food industries. Cysteine which is cheap is generally obtained from human hair which is not halal for consumption. Cysteine itself is widely found in the hair of living things and can be isolated from halal animals such as sheep. To be able to use sheep wool as a source of cysteine, it is necessary to conduct research on how to isolate, separate, and characterize cysteine from sheep wool. This study aims to isolate cysteine from fleece by acid hydrolysis and to separate cysteine from sheep wool with isoelectric pH. Separation with isoelectric pH was carried out by titration using 0.05 M and 0.5 M NaOH. Cysteine was successfully isolated by acid hydrolysis method and separation by isoelectric pH. However, the separation was only successful in the titration using 0.05 M NaOH as indicated by the presence of amino groups (1056.91, 1110.92, and 1164.92), carboxylate (1373.22) and the amino acid cysteine R group, namely sulfur (609.46 and 702.04) in the results of the FTIR.
Keyword: acid hydrolysis, sheep, isoelectric pH, cysteine

Judul: Karakteristik wol domba tercemar timbal yang disuplementasi kombinasi protein yeast, mineral organik, khitosan dan ekstrak rumput laut coklat
Abstrak: Sheep is one of protein source which many people breed in tropic area, including in Indonesia. Beside as source of protein, sheep also used to 11roduce wool, especially in sub tropic countries. Sheep has better adaptation in environment, climate and feed. This study was completely done in 'outdoor laboratoly of IPT Ruluinansia Kecil Departemen IPTP, laboratory of Nutrisi Ternalc Perah Departemen INMT. and photo inicro laboratory, Departemen Biologi Falcultas MIPA Institilt l'ertanian Bogor. This field research was done in July to November 2004. This study used 24 heads local strain nlale sheep aged 8 months old. This sheep was grouped into Tor group based on body weight. Each groups was 6 head sheep.the treatlnents were six. first treatnlent was basal feed (RO), that was for~nulatedf eed based on NRC of sheep (1 989). Second treatment was colnbination of basal feed and 4.5 ppin lead acetate (RI). Third treatment was combination of R1 feed and 1 % yeast protein (R2). Fourth treatment was combination of R2 feed and organic ~nineral Zn 40 ppm. CulO ppm, Cr 2 ppm, and Se 0.3 ppnl (R3). Fifth treatment was colnbination feed of R3 and chitosan (R4). Sixth treatlnent was combination of R3 treatment and Brown weed extract (R5). Wool cutting and collected was done twice, once before treatment's given and second pasca treatment. Taken wool was analyzed of length; weight, density, dianleter and Lead concentration in wool. The design was using groups randoinized design. Then using one way anova (analysis of variance): f~~rther difference was analyzed using lu.uslcal wallis. The results showed that given of lead and supple~iient did not affect to wool quality. It showed in length. weigh. density and dianieter. ICeywords : Sheep. Wool, Lead (Pb), Protein Yeast, Organic Mineral. Chitosan, Brown Sea Weed Extract
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Judul: Pemeliharaan Pertamanan Kota di Kota Bandung
Abstrak: Bandung saat ini telah tumbuh mcnjadi salah satu kota besar di Indonesia yang ditandai dengan semakin meningkatnya kawasan terbangun dengan aktivitas perkotaan di dalamnya. Peningkatan ruang terbangun dan aktivitas perkotaan memberi dampak terhadap perubahan atau pengurangan ruang terbuka. Hal ini terlihat dari persentase lahan terbuka terhadap luas kota dimana pada tahun 1988 sebesar 34,41 %, tahun 1992 sebcsar 31,41 % dan tahun 1999 sebesar 23%. Keadaan seperti ini dapat mempengaruhi keseimbangan lingkungan sehingga kualitas lingkungan terganggu. Untuk mencegah berkurangnya ruang terbuka maka dikeluarkan Instruksi Menteri Dalam Negeri No.14 tahun J 988 yang menetapkan perbandingan antara ruang terbuka dan ruang terbangun sebesar 40%: 60%.
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