In order to collect Indonesian Nostoc, isolation of soil microflora from several paddy fields in West Java, Bali, and South Celebes was carried out. Fast-growing isolates of Nostoc were selected to describe and perform molecular identification using partial sequences of 16S rRNA. The results showed that partial sequences of 16S rRNA could not resolve the phylogeny of the isolates. However, it supported the morphological studies that recognize isolates as different species of Nostoc. Potential use of Nostoc as a nitrogen source for paddy growth was carried out using six strains as single inocul…
The phenomenon of harmful algal blooms (HABs) in the Lampung Bay has been reported by many researchers. The occurrence of HABs may be due to the increase of nutrient (N and P) as results of waste water of aquaculture (shrimp farms, hatcheries and fish cage farms). This study aim to determine the relationship between N and P concentrations in some aquaculture sites with harmful algal blooms. The analysis revealed the differences concentration of N and P at each different shrimp farms and fish cage farms sites (Hurun, Sidodadi, Ringgung, and Cikunyinyi Bay). The result showed that the increase o…
Nigella sativa L. has been reported to exhibit many pharmacological effects, including anti-parasitic properties. This study investigated the anti-malarial effects of a water extract of N. sativa seed in Mus muculus mice infected with the Plasmodium berghei NK65 parasite. The method used was to take a blood parasitaemia count, following the use of Giemsa dye, determining the level of nitric oxide in mice that were infected with P. berghei malaria, using the spectrophotometric method, and determining their survival rate after 20 days of being infected with P. berghei malaria. The results showed…
The reclaimed mangrove estuary in Muara Angke Kapuk is a reclaimed area that has not evaded the impacted of pollution and waste in the areas surrounding Cengkareng, Jakarta. This is apparent from the fact that almost all sediments under the mangrove trees are buried under heaps of plastic trash. However, the reclaimed region still has variety of organism, which indicating that the region still has an internal carrying capacity, especially nutrients from sediment. The purpose of this research was to examine the condition of sediment nutrients in this mangrove reclamation region. The research wa…
Three terpenoids, including two diterpenes (curcusone B and jatrophone) and a triterpene (stigmasterol) have been isolated from the stem bark of Jatropha plants. Curcusone B and stigmasterol were isolated from J. curcas, meanwhile jatrophone and stigmasterol were from J. gossypifolia. The biological activities of these compounds have been evaluated toward bacteria, fungi and tumour cells. Isolation was carried out in vacuum liqiud cromatography (VLC) technique with silica gel as an adsorben and some solvents as eluents. The compound structures were determined by spectroscopic methodes i.e. UV-…
The effects of dietary food fortified with orotic acid (1.0%) on liver function were studied in rats. The rats fed with orotic acid promoted liver triglyceride content markedly, that was 5-fold higher than that of the control. The liver malondialdehyde (MDA) content increased by 10%, but the gluthation peroxidase (GSH-Px) activity decreased by 50%. The serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities increased by 25% and 30%, respectively. Therefore, the decreased GSH-Px activity was associated with the promotions of AST, ALT, and the liver MDA levels. In co…
The research about validation of the method of Hg determination on the sample from wastewater treatment plant (WWTP) PT. Badak NGL Bontang, Kalimantan Timur using cold vapour-atomic absorption spectrophotometer (CV-AAS) techniques has been conducted. To obtain a valid measurement result, determinations of the important several parameters that influence the method validation are used. The results of research showed that 20% SnCl2 solution could be used as a reducing agent. The analytic performance of measurement obtain is good, showed with the linearity (r) value ≥ 0.995, LOD was 0.2530 p…
allicarpa L is one genus of the family Lamiaceae. Callicarpa consisting of approximately 150 species such as shrubs and trees. Various species of Callicarpa is widely used in traditional medicine and it was potentially as antinociceptive, antioxidant, antimicrobial and thrombolytic drugs. Based on various reports results of previous studies have found various types of secondary metabolites from plants Callicarpa such as terpenoids, steroids and flavonoids. Some of these compounds can be developed as an anti A. aegypti mosquito, Anopheles stephensi, and natural pesticides.
Determination of amino acids essential’s content (methionine, leucine, isoleucine and lysine) on turtle eggs and duck eggs. Turtle eggs and duck eggs are a high animal protein source and easy to obtain. This research has been carried out by categorizing of turtle eggs and duck eggs by size and continued analysis of water content by Methods of Gravimetry, analyzes protein content total by the method of Kjeldahl and analysis of the levels of essential amino acids with method of HPLC (High Performance Liquid Chromatography). In this study, the researcher found the water content in the mix …
The reduction of chromium concentration in Samarinda sarong wastewater by electrocoagulation method has been carried out. The research used Atomic Absorption Spectrophotometer (AAS) as an instrument determination level. To determination the optimum levels of each parameters by large percent qualified of electrocoagulation process with used variation of series parameters such as time contact, variation voltage and the distance of electrode. The result of research showed that degradation and is big of elimination percent of metal of Cr have an in with the effect of time contact, voltage and also…
Kerehau (Callicarpa longifolia Lam.) is one of the biodiversity used as traditional medicine by one of the indigenous tribes of Borneo, called Dayak Tunjung. The purpose of this study was to determine about toxicity level of the Kerehau leaves (Callicarpa longifolia Lam.) to larvae shrimps (Artemia Salina Leach) and to determine the content of the active compounds contained in the Kerehau leaves (Callicarpa longifolia Lam.). The research was conducted by extracting samples with methanol and then concentrated by rotary evaporator. Total extract fractionated with n-hexane and chloroform, and the…
Resin DEAE Separose Fast Flow adalah salah satu resin yang digunakan dalam kromatografi penukar ion. Dalam aplikasi resin diinstruksikan penggunaan konstan laju alir dalam proses packing kolom sangat terbatas yaitu dengan ketentuan bed height (tinggi resin dalam kolom) 15 cm. Di sisi lain, pengguna resin tidak selalu menggunakan jumlah resin yang sama banyak dan jenis kolom yang berbeda. Sehingga, proses kemas pada kolom gelas kaca (SAC 100/500 mm) maka, diperlukan studi lebih lanjut untuk menentukan tinggi kolom. Penelitian ini menggunakan laju alir yang direkomendasikan dari pemasok dan juga…
This research has been carried out the selection of three types of compounds to be used as an Internal Standard (ISTD) on the quantitative determination of BTEX in the natural gas condensate, they are pyridine and nitrobenzene marpholine that have the similar chemical compound with the analyte (aromatic hydrocarbons). The ISTD selection is done by mixing ISTD with natural gas condensate samples into the solvent carbon disulfide (CS 2 ), and then 1μl injected into the Gas Chromatography (GC) to know the column elution or separation of the mixture. From the results of research that have been …
Asam lemak hidroksamat (Fatty Hydroxamic Acids/FHA) telah berhasil di sintesis dari minyak mentah dedak padi. Adapun tujuan dari penelitian ini adalah sintesis asam lemak hidroksamat dari minyak mentah dedak padi secara enzimatis dan menentukan kondisi optimumnya, yang meliputi tiga tahap pengerjaan yaitu tahap preparasi minyak, tahap optimasi sintesis dan tahap karakterisasi. Pada tahap preparasi minyak diperoleh rendemen minyak mentah dedak padi sebanyak 23%. Pada tahap optimasi didapatkan kondisi optimum untuk sintesis asam lemak hidroksamat dari minyak mentah dedak padi adalah pada suhu 35…
The secondary metabolite compound was isolated from sidaguri (Sida rhombifolia L.) leaves. The diethylether extract was subjected to a column chromatography with a mixture of chloroform:methanol (7:3) was obtained as amorf (59 mg). The FT-IR and 1H-NMR spectrum indicated the isolated compound was alkaloid compound.Keywords : Sidaguri (Sida rhombifolia L.), column chromatography, alkaloid
This research was purposed to know about the water lettuce (Salvinia molesta) absorption ability for metal Cu (II) ion and the influence of plant sum variation and its contact time. The simulation is done by planting the water lettuce (Salvinia molesta) at water media as a growing place which prepared in 5 place that each be volumed by 5 l the plant of Cu solution as 20 mg/L, Then, the water lettuce (Salvinia molesta) also be volumed as 0 (blank), 10, 15, 20 and 25 as its variation. Then, this research also variated its contact time as 0, 3, 6, 9, 12, 15, 18 and 21 days. The concentration of m…
Paying attention to the gap between the fenomenal discource dan movement of civil society in the Indonesian politics in 1990s and its anomali movement in the reformation era, has been be studied the problems of Indonesian civil society in such era using documents and decriptive and critical analysis in order to be sought its ways out using reflective analysis. Instead of being strong, Indonesian civil society in the reformation era really weakened. The civil society those formerly had autonomy were coopted by the state when their leader got power. The leaders themselves looked inco…
Al-Qur’an is known as an authentic source for comparative religion (‘ilm muqâranat al-adyân). There are six religions mentioned explicitly in the Qur’an in the verse (22: 17), namely: the believers, the Jews, the Christians, the Sabean, the Zoroastrians, and the idolater. This means that al-Qur’an is a holy book that pays great attention to comparative religion (muqâranat al-adyân). At this point, what al-Qur’an generally mentions is still a hot topic to discuss up to the present. In other words, what Al-Qur’an informs about these religions is always up to date and actual. Al-Q…
A theory on naskh which develops grantedly in the Islamic sciences, naturally raises a controversy, which indicates that this concept is arguable and discussable. On the other hand, contemporary muslim scholars have solved significantly on this controversy. This article tries to present some problems of naskh in relation with the Holy Al-Qur’an. Among the problems discussed in this regard is a controversy on the meaning of naskh, particularly in the development of Interpretation of Quranic verses in relation to the development of Islamic jurisprudence. The view of muslim scholars and their a…
This article elaborates the opportunities and challenges of the Islamic revivalist movement in post-reform Indonesia since the opportunity to express the notions is opened. The issue of revivalism is not only developed in Indonesia, but also an important issue in Southeast Asia, South Asia, Middle East, and other regions. This can be seen from various studies on Islamic revivalism that occurred in various areas. Even the Islamic revivalism was actually initiated at the end of the nineteenth century by Jamaluddin al-Afghani, whose passion was continued by his disciple Muhammad Abduh. The author…