Buletin Kimia
http://repository.ipb.ac.id/handle/123456789/29126
2024-03-28T10:06:17ZPengaruh Pemberian Yoghurt Terhadap Pertumbuhan Gigi Tikus Putih (Rattus Norvegicus Galur Wistar)
http://repository.ipb.ac.id/handle/123456789/29377
Pengaruh Pemberian Yoghurt Terhadap Pertumbuhan Gigi Tikus Putih (Rattus Norvegicus Galur Wistar)
Bintang, Maria
The purpose of this research is to get information about the effect of yoghurt on the growing teeth of Rat (Rattus norvegicus strain wistaf). This research used 30 male rats, which divided into three groups. Each group consist of 10 rats. One group was one month old and the others were two and three months old. One of the rats' incisor teeth was cut and the rest length of the teeth were measured by sliding ruler. Each group of the rats was divided into two sub groups. One sub group was given 1,O ml of yoghurt, the others were glven 1,5 mi and 2,O ml of yoghurt once a day for 10 days. The other sub group was given aquadest with the same dose as a control group. Everyday the length of the teeth was measured. The results of this research indicated that yoghurt can accelerate the growth of the rat's teeth, but based on the statistical analyzed it showed no srgnificant difference.
2001-01-01T00:00:00ZMekanisme Penghambatan Produk-Produk Reaksi Maillard
http://repository.ipb.ac.id/handle/123456789/29375
Mekanisme Penghambatan Produk-Produk Reaksi Maillard
Ambarsari, Laksmi; Mochtar, H.M.
To determinine the inhibitory mechanism of antibacterial MailiW reaction products (PRM), heated mixtures containing GL (glukosa-tisin) and TU (---urea) were studied fcx their effect on uptake oxygen and iron solubility. It was found that the tested PRM had an inhibitory effect on the uptake of oxygen was observed. The PRM also had an effect on the solttbirity of iron in nutrient broth and in phosphate buffer. While the GL mixture reduced the solubility of iron it was increased by the TU mixture. The present data suggest that the antibacterial effect of the tested PRM is primarily due to the interaction between PRM and iron, resulting in reduced metabolic activity and uptake of nutrients.
2002-01-01T00:00:00ZReduksi Biologi dari Limbah Pabrik Kopi Menggunakan Cacing Tanah Eisenia Foetida
http://repository.ipb.ac.id/handle/123456789/29369
Reduksi Biologi dari Limbah Pabrik Kopi Menggunakan Cacing Tanah Eisenia Foetida
Mellawati, June
Biology reductions of coffee residue, waste from PT. Torabika industry, Tangerang using earthworm have been carried out. The aim of experiment is to know the ability of earthworm to decompose the waste become verrnicompost and to evaluate it quality. The experiment was used earthworms Eisenia foetida species and 25 - 75 % of cow manure as a medium mixture. The result showed that the structure of vermicomost is soft and black colors with cation capacity is 17.49 - 21.32 megll00. The mineral content were determined using X-ray Fluorescence Spectrometer (XRF), UV-Vis Spectrophotometer and Kjeldahl, the result showed that the concentrations of N are 0.93 - 0.94 %, CI N 11.26 - 15, K 6.64 - 6.95 %, Ca 12.1 - 17.3 %, P 0.09 - 0.16 %, Mn 0.11 - 0.19 %, Fe 2,01 - 2,69 %, Zn 538 - 779 mgl kg. The earthworm biomass was increased until third weeks of vermicomposting.
2002-01-01T00:00:00ZPerbandingan Fermentasi Antibiotik oleh Streptomyces sp. S-34 dan Dua Rekombinasinya pada Beberapa Medium
http://repository.ipb.ac.id/handle/123456789/29368
Perbandingan Fermentasi Antibiotik oleh Streptomyces sp. S-34 dan Dua Rekombinasinya pada Beberapa Medium
Purwakusumah, Edy Djauhari
Sampai saat ini penelitian mengenai antibiotik masih tetap nienarik karena 1 selain pemakaiannya yang cukup luas dalam dunia pengobatan juga karena adanya I kemungkinan suatu mikroorganisme menjadi resistenlkebal terhadap suatu jenis I 1 antibiotik. Berbagai usaha terus dilakukan untuk meningkatkan kualitas dan kuantitas antibiotik meliputi optimasi komposisi kandungan medium, kondisi fermentasi, dan pencarian mikroorganisme penghasil yang baru. Salah satu cara untuk mendapatkan rnikroorganisme baru adalah fusi frotoplas yang diperkenalkan oleh Hopwood pada tahun 1977. Perbandingan proses fermentasi antibiotik Streptontyces sp. S-34 dengan dua rekombinannya hasil fusi dengan Pseudernortas fluorescerts yang disebut HFSP-1 dan HFSP-2 yang dilakukan dalam penelitian ini menunjukkan bahwa proses biosintesis antibiotik oleh ketiga ~nikroorganisme terscbut secara umum adalah sama. Kandungan medium berupa nitrogen dan berbagai kadar glukosa berpengaruh untuk mempercepat pembentukan dan jumlah antibiotik yang dihasilkan.
1992-01-01T00:00:00Z