Judul: Karakteristik Fouling dan polarisasi konsentrasi pada proses recovery protein sebagai bahan flavor dari air sisa pasteurisasi pengolahan rajungan dengan reverse osmosis
Abstrak: Salah satu teknologi alternatif yang hemat energi dan ramah lingkungan adalah teknologi membran. Membran reverse osmosis telah banyak digunakan untuk proses recovery flavor pada apel, lemon dan mangga. Aplikasinya membran memiliki karakteristik dan efektifitas kerja yang berbeda. Membran yang telah dipakai dalam jangka waktu tertentu, efektifitas kerjanya akan semakin berkurang. Hal ini disebabkan oleh adanya akumulasi bahan atau molekul-molekul dari larutan pengumpan (feed) pada permukaan membran dan selanjutnyaakan menyumbat pori. Secara umum tekanan dapat meningkat lagi bahkan sebaliknya akan menurunkan fluks. Hal tersebut terjadi karena proses polarisasi konsentrasi
Keyword: 

Judul: Optimasi Proses Reverse Osmosis pada Recovery dan  Pemekatan Komponen Flavor Limbah Cair Pasteurisasi  Rajungan
Abstrak: Limbah rajungan jika tidak dimanfaatkan dengan optimal dapat menjadi sumber pencemaran bagi lingkungan. Pemanfaatan limbah cair rajungan masih terbatas, diantaranya untuk pembuatan petis yang dilakukan secara tradisional. Alternatif pemanfaatan yang bernilai ekonomis adalah proses recovery komponen flavor terkait kandungan berbagai komponen flavor dalam rajungan. Proses recovery flavor banyak dilakukan dengan evaporasi atau freeze concentration. Masalah yang muncul pada proses evaporasi adalah hilangnya sebagian komponen volatil flavor karena panas, sedangkan proses freeze concentration menghasilkan rendemen yang rendah. Penggunaan teknologi membran reverse osmosis (RO) yang ramah lingkungan dan tingkat rejeksi yang tinggi diharapkan akan menghasilkan rendemen yang lebih besar.
Keyword: 

Judul: Studies on growth spurt and aging in higher primates
Abstrak: single measurement that best defines the health and nutritional status of children, just as it provides an indirect measurement of the quality of life of an entire population. The pattern of human growth reflects the biocultural evolution of our species. The human pattern of growth and development (ontogeny) appears to differ markedly from patterns of ontogeny in other primate species. Three studies are reported here which deal to the growth and development of human and chimpanzee (Pan troglodytes). These three studies allow us to contrast the phenomena of adolescence growth spurt and female elderly bone loss in chimpanzee and human as chimpanzee is the closest species to humans within extant nonhuman primates. In the first, a cross-sectional study of growth of the body size and somatotype of 363 Javanese girls and 299 Javanese boys aged 4 to 20 years from Magelang Regency, Indonesia was described. In the second, cross-sectional and longitudinal studies in the growth of chimpanzee second metacarpal bone linear dimensions from individuals aged 0 to 43.6 years were used for comparison. While in the third, cross-sectional and longitudinal studies in the growth of chimpanzee body size (body mass and anterior trunk length) and second metacarpal bone mineral content were derived. In measuring the second metacarpal dimensions and mineral content, a total of 568 radiographs of chimpanzee's proximodistal left hands were used. They were taken from 68 females and 49 males aged 0 to 43.62 years old. We applied an image analysis system, Scion Image Release Alpha 4.0.3.2 software for Windows to measure bone linear dimensions and bone mineral content. Humans present complex and sinuous growth curves for both body weight and height. A clear growth spurt could be demonstrated by cross-sectional analysis in our girl subjects at around aged 11.5 years and in our boy subjects at around aged 12.5 years. In longitudinal series, not in cross-sectional, several representative chimpanzees of both sexes showed a pre-adult growth spurt on the body sizes, bone dimensions and bone mineral content. They ranged at age 4.5 to 8.5 years. This underscore the fact that adolescent growth spurt in linear dimension was not a universal feature of anthropoid primate ontogeny. Bone loss is a well established characteristic of human female aging. Based on crosssectional analyses the sequential decline of bone mass in female chimpanzee may be said to be genuine. On the other hand, we found in adulthood through elderly, male chimpanzees show a longer plateau than female chimpanzee, that is, bone mineral content is maintained in male.
Keyword: Javanese children, growth spurt, chimpanzee, second metacarpal bone, bone loss, Higher Primates