Browsing Chemistry by Title
Now showing items 103-122 of 142
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Potensi Ekstrak Rhizophora sp. sebagai Inhibitor Tirosinase
(2013-03-28)Previous research showed that Rhizophora sp. was plant which has tyrosinase inhibitor activity. The purpose of this study is to find the parts and species of Rhizophora sp. which has the best tyrosinase inhibitory activity. ... -
Potensi Minyak Atsiri Daun Cinnamomum multiflorum sebagai Insektisida Nabati terhadap Ulat Kubis Crocidolomia pavonana
(2013-04-29)Penggunaan minyak atsiri kini makin meluas tidak hanya dalam bidang industri dan farmasi, melainkan dalam bidang pertanian. Minyak atsiri berbagai jenis tanaman telah dilaporkan bersifat bakterisida, fungisida, dan ... -
Potensi Tanaman Alamanda cathartica di Daerah Bogor sebagai Inhibitor Enzim Tirosinase
(2013-05-29)ABSTRAK : Potensi tanaman alamanda (Alamanda cathartica) dari dua daerah di Bogor sebagai inhibitor tirosinase dipe1ajari dalam penelitian ini. Sampel alamanda diambil dari daerah Cibirus dan Cikabayan. Bagian tanaman ... -
Prediksi kadar flavonoid total tempuyung (Sonchus arvensis L.) menggunakan kombinasi spektroskopi ir dengan regresi kuadrat terkecil parsial
(2013-03-28)Potensi dari spektroskopi inframerah tertransformasi Fourier (FfIR) yang dikombinasikan dengan metode kemometrik dalam menentukan kandungao flavonoid total dari tempuyung (Sonchus arvensis L) telah dilakukan. Regresi kuadrat ... -
Production of semiconductor materials silicon from silica rice husk waste as alternative silicon sources
(2013-03-28)Rice is one of the most important culti\'ated plants in human civilization. Rice production ranks third in the world of all cerealia after maize and wheal. According to Central Agency Statistics of Indonesia. production ... -
Produksi gas karbon dioksida selama proses bioremediasi limbah heavy oil dengan teknik landfarming
(2010)Bioremediation is defined as biological degradation process of organic or inorganic wastes in a controlled condition to control and reduce their amount in the environment. In this study, the soil which had been poluted by ... -
Produksi Pigmen oleh Spirulina platensis yang Ditumbuhkan pada Media Limbah Lateks Pekat
(2002)Spirulina platensis was cultured in a medium of skim latex serum under aerated agitation and low intensity of sunlight. When pH of the medium was maintained at 8.3 and optical density of the culture was kept below 1.0, the ... -
Profil Kelarutan Limbah Minyak Berat Akibat Penambahan Bahan Pencampur
(2013-04-11)Heavy Oil Waste (HOWj is on ofthe most importallt petroeum .t'Gste, In the recent years, many contamination ofsoil or water hy HOW hCll'e heL'11 /,L'ported Biorel11ediatiot1 is ol1e oOlle altL'rnatil'e technology to clean ... -
Prospect of sodium lignosulfonate derived from hardwood black liquor as ingredient in mortar
(2013-02-04)Lignosulfonate, derived from grasses and softwood lignins, are able to increase workability of concrete mixture. Based on the availability of hardwood as raw material III pulp and paper industry in Indonesia, the black ... -
Purification of Antiangiogenesis Compound from Indonesian Shark Cartilage (Elasmobranchii) and In Vitro Assay with Endothelial Cell Culture
(2001)Shark cartilage has been recognized as an alternative medicine for cancer and other diseases caused by the angiogenesis process. In this study, the antiangiogenesis effect of crude extract, purified glycoprotein and ... -
Rapid Analysis of Total Flavonoids from Medicinal Herb : Interpretation of Chemometrics on Infrared Spectra of Phyllantus Niruri
(2013-03-28)The potential of mid-infrared (FTIR) spectroscopy for the determination of secondary metabolites (total flavonoids) in Phyllantus niruri herb was investigated. The study are applying chemometrics technique (i.e. partial ... -
Rekayasa Biopolymer Hasil Samping Pabrik Tapioka (Onggok) sebagai Enriched Soil Conditioner : Tahap Sintesis Superabsorben
(2014-03-14)Polimer yang memiliki kemampuan daya serap air tinggi dapat digunakan sebagai soil conditioner. Kemampuan polimer menyerap air minimal 100 kali bobot awalnya dikatergorikan sebagai polimer superabsorben (SAP). Pada penelitian ... -
Residu Pestisida pada Tiga Jenis Buah Impor
(2001)Analysis of residues of three organophosphoreus insecticides (diazinon, dimethoate and chlorpyrifos) and benzimidazole fungicides (benomyl and carbendazin) in three imported fruits (grape, apple and pear) was conductedted. ... -
(S)-Mimosine From The Indonesian Sensitive Plant (Mimosa invisa Colla) As An Anti-Melanogenesis Agent (S)-Mimosina Dari Tumbuhan Sikejut Besar (Mimosa invisa Colla) Sebagai Anti-Melanogenesis
(2022)Ekstrak dari daun sikejut besar atau Mimosa invisa Colla (Fabaceae) telah diuji aktivitas anti melanogenesis menggunakan sel melanoma B16F10. Fraksi aktif diperoleh dari pemurnian menggunakan kromatografi cair vakum yang ... -
Separation of Picung (Pangium edule REINW.) seed for active compounds and biological activity test to Grayak caterpillar (Spodoptera litura F.)
(2007)Employing a synthetic pesticide may give harmful effect to the environtment, such as in-soil water pollution, killing natural enemy of pest, creating higher pest resistance, and secondary pest attack. The development of ... -
Sifat mekanis polipaduan polistirena-pati menggunakan zat pemlastis epoksida minyak jarak pagar
(2013-02-12)Polipaduan Olerupakan pencampuran secara fisik dua polimer atau lebih yang berbeda sifat dengan salah satu tujuannya menclapatkan polimer yang dapat terdegradasi dan memiliki sifat mekanik yang baik. Pati merupakan polimer ... -
Sintesis dan karakterisasi glukosamina hidroklorida berbasis kitosan
(2013-06-04)Abstract : Glucosamine hydrochloride salt is one of the amino sugars that has therapeutic properties such as anticancer, antimicrobial, and as raw material for arthritis drug. Objective of this study is to synthesize ... -
Sintesis dan karakterisasi resin lignin resorsinol formaldehida sebagai perekat kayu lamina
(2013-05-10)Lignin yang rerdapar dafam likuor hiram sulfat (dikenal dengan lignin krafr) mempunyai afiniras yang kuat apabila direaksikan dengan formaldehid unruk membentuk perekat lignin formaldehid. Unruk meningkarkan kualitas ... -
Sintesis dan Optimalisasi Gel Kitosan-Alginat
(2013)Shrimp shell can be used to make chitosan. The objective of this work is to sythesis and optimize chitosan-alginate gel by comparing its rheological properties. Rheological properties of chitosan were improved by gelation ... -
Sintesis dan Optimalisasi Gel Kitosan-Gom Guar
(2015-03-25)ABSTRACT : Shrimp shell can be used to make chitosan. Rheological properties of chitosan were improved by gelation using glutaraldehyde as cross linker and natural hydrocolloids such as guar gum. Rheological properties ...