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Now showing items 81-90 of 144
Elektrode Pasta Karbon Termodifikasi Kuersetin untuk Analisis Ion Tembaga(II) secara Voltammetri
(2013)
Quercetin is a flavonoid compound that can form stable complexes with various metal ions. Its use as a modifier for carbon paste electrode is expected to improve sensitivity in measurement by voltammetry. Quercetin-modified ...
Sintesis Hidroksiapatit Berpori dari Cangkang Keong Sawah (Bellamya javanica) dengan Penambahan Pati Singkong sebagai Porogen
(2013)
Hydroxyapatite (HAp) was synthesized by mixing Ca(OH)2 with (NH4)2·HPO4 and adding cassava starch as porogen. The method used was wet method (presipitation), by reactioning Ca(OH)2 from snail’s shell with technical ...
Potensi Sineol Dalam Minyak Atsiri Kayu Putih Sebagai Pelangsing Aromaterapi
(2013)
Cajuput in one of plants containing essential oil with cineole as a major component. This study aimed to separate cineole in cajuput oil and to analyze its potency as slimming aromatherapy through in vivo assay. The essential ...
Kinerja Elektrode Pasta Karbon Termodifikasi Nanomagnetit pada Teknik Voltametri Siklik
(2013)
The performance of nanomagnetite-modified carbon paste electrodes (CPE) are influenced by the characteristics of nanomagnetite. This study determined the performance of a CPE modified with nanomagnetite synthesized by ...
Pencirian Bioplastik Tepung Tapioka Terplastisasi Gliserol dengan Penambahan Karaginan
(2013)
Tapioca starch is very potential to be used as biodegradable plastic materials. However, its hydrophilic nature makes the plastic produced fragile and needs addition of plastic. In this research, bioplastics of tapioca ...
Optimisasi Produksi dan Aktivitas Senyawa Eksopolisakarida dari Jamur Tiram Putih (Pleurotus ostreatus) pada Media Cair
(2013)
White oyster mushroom (Pleurotus ostreatus) is one of high level fungal and contains exopolysaccharide that has antioxidant and antimicrobial activities. This type of mushrooms can be grown in a liquid medium with the ...
Sintesis Flav-3-ena sebagai Prekursor Flavan-3-ol
(2013)
Flavan-3-ol merupakan salah satu kelompok flavonoid yang penting bagi kesehatan tubuh karena dapat membantu kelancaran sirkulasi darah dan melindungi kulit dari kerusakan yang diakibatkan oleh sinar ultraviolet. Flavan-3-ol ...
Metil-p-Hidroksibenzoat dari Fraksi Nonpolar Ekstrak Metanol Daun Ketepeng (Cassia alata)
(2013)
Ketepeng (Cassia alata) adalah tanaman perdu yang tumbuh berkelompok dan berguna bagi kesehatan. Daunnya secara tradisional digunakan untuk mengobati sembelit dan penyakit kulit di banyak negara seperti Indonesia. Penelitian ...
Senyawa Kimia Penciri Jernang untuk Pembaruan Parameter Standar Nasional Indonesia
(2013)
Dragon’s blood, a resin exudated from rattan (Daemonorops draco) fruits has many benefits so that prices and demand are always high. The National Standardization Agency has issued Indonesia National Standard (SNI) for ...
Metode Cepat Penentuan Brazilin dalam Produk Jamu dan Kayu Secang menggunakan Spektrofotometri Derivatif Ultraviolet
(2013)
Brazilin is an active compound in sappan wood with a lot of bioactivity and serves as fingerprint compound for sappan wood. Fast and efficient method must be used to measure brazilin contents in sappan wood and jamu product ...