Marina Chimica Acta
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LIGNIN AND CARBON ISOTOPES COMPOSITION OF SUSPENDED PARTICULATES BY CAPILLARY GAS CHROMATOGRAPHY OF CUPRIC OXIDE OXIDATION PRODUCTS
Full text linkLignin are high molecular weight phenolic polymers that occur as major constituents of vascular plants. As a result of their natural abundance, wide distribution, and resistance to microbial degradation, lignin are also commonly found in soil and sedimentary organic matter. The aim of this study was to identify the contribution of lignin to the suspended particulate fraction in the Losari Beach and Lae-lae Island, where indicate highly degraded lignin materials. Lignin was characterized by oxidative degradation, cupric oxide being chosen as the most suitable oxydizing agent to produce simple lignin-derived phenols that are extracted with hexane and analyzed by capillary gas chromatography on fused silica columns, provides the high sensitivity and precision required for the identification and quantitation of trace levels of lignin in seawater. A suite of up to 8 phenols is produced that reflects the relative concentration and plant tissue sources of lignin present in the suspended material
DETERMINATION AND DEGRADATION PYRENE FROM PAOTERE PORT SEDIMENTS WITH OXIDIZER KMnO4
Full text linkPaotere port is one of port in Makassar which functions as a stopover place of ships, also serves as fish market and fishermen settlements. Various activities of transportation, commerce and households occurred in the Paotere port area can be a source of pollution of pyrene compounds to the surrounding environment. Pyrene compounds that accumulate and can not be degrade will impact the environment and marine life. Determination pyrene in sediment from Paotere Port have been carried out using GC-MS by sonication using dichloromethane as solvent. Result show that there was no PAH in sediment of the three sampling stations. Pyrene compound chemically degradation was conducted by sonication for 1 hour using an oxidant KMnO4 concentration of 0.05 M, 0.07 M and 0.1 M. Results show that KMnO4 as oxidizing agent could to degrade the whole pyrene with concentration of 87,8554 ng/g in sediment
DIETHANOLAMINE AS CO2 ABSORBENT FOR 14C ANALYSIS TO DETERMINATION AGE OF CORAL REEF FROM PANAMBUNGAN ISLAND BY USING LIQUID SCINTILLATION COUNTING (LSC) METHOD
Full text linkUtilization of diethanolamine (DEA) as an absorbent for 14C analysis using liquid scintillation counting (LSC) on the determination of the age of the coral reefs have been done. Coral reefs are analyzed from the uninhabited Panambungan island which far away from the influence of human activity. Sample preparation, physical and chemical by using 2 acid-base mixture: H2O2-NaOH and HClO4-HCl. At this stage there is a weight reduction of as much as 9.023 gram sample. Carbonate samples reacted with HCl to separate CO2 and sequestration by diethanolamine into carbamate compounds. Total carbon in the sample solution is obtained through the reduction of 0.838 grams before and after absorption. The specific activity of 14C in samples measured by the counter LSC HIDEX 300 SL and obtained 8.4026 ± 6,85 DPM/gC. The specific activity of the sample and the specific activity of modern carbon (15.3 ± 0.1 DPM/gC) is inserted into the equation radioisotope decay, obtained the age of 4955 ± 935 years
ENVIRONMENTAL AWARENESS OF PEOPLE AT DIFFERENT OCCUPATIONAL LEVELS: A CASE STUDY ON THE FARMERS, HOSPITAL AND INDUSTRIAL WORKERS, BANGLADESH
No full textThe study was conducted to find out the level of environmental awareness of the farmers, hospital and industrial workers at Tangail Sadar Upazila in Tangail District, Bangladesh. The study included a questionnaire survey on a total of 390 respondents including 130 farmers, 130 hospital workers and 130 industrial workers in relation to their perception and awareness about several global and local environmental issues. Among the respondents 48.4% farmers were illiterate while all of the hospital and industrial workers passed the minimum level of education i.e. primary level. Only 12.1% and 6.6% of the hospital and industrial workers, respectively, completed their graduation whereas no farmer was found who completed the graduation. The study showed that the extent of environmental awareness varies among people at different occupational levels. The level of environmental awareness among the hospital workers was quite satisfactory than other groups of respondents. Industrial workers have comparatively better idea as their level of education was quite better than the farmers. Moreover, 33.6%, 58.2% and 35.6% of the farmers, hospital and industrial workers, respectively, participated in different awareness rising programs. The result of the study depicted that the hospital workers are much more conscious about different environmental issues than the others as their educational background was comparatively higher and also as they have participated comparatively in large number of environmental programs
ANALYSIS OF IODINE CONTENT IN SEAWEED AND ESTIMATION OF IODINE INTAKE
Full text linkABSTRACTSeaweed has become food the most popular in many Asian countries because apart from has a distinctive taste, seaweeds having the mineral content needed by the body. Seaweed iodine containing minerals being obtained from sea water, who was one of micro nonmetallic minerals which is very much needed by the body. Lack of iodine can cause cretinism, hyacinth, and the production of hormone low ( hypothyroidism due to enlargement the thyroid gland. Excess intake iodine also can cause an impairment of health. Recommendations intake iodine per day of by 0.15 mg/day. The purpose of this research to know the iodine on seaweed (seaweed ) in the village Punaga sub district Mangarabombang district Takalar. The kind of research laboratory this is a observation to technique quantitative analysis. Technique the sample collection in purposive sampling as many as 5 samples. Next sample each in destructor dry then examined in of the spectrophotometer Uv-visible at wavelengths 463,9 nm. Based on research results obtained levels of iodine on seaweed (seaweed ) are 1.72 µg/g, 1.92 µg/g, 1.73 µg/g, 1.94 µg/g, and 1.89 µg/g it shows that seaweed has any iodine high
MINERAL ANALYSIS (CU, PB AND CD) AND BIO-PHYSICAL CHEMISTRY TEST HONEY ORIGIN DISTRICT. KINDANG BULUKUMBA
Full text linkHoney is a natural product produced by bees that contain nutrients that are very essential. Honey is not only a material sweeteners, flavoring or food, but is also used for drugs. This research aims to know the quality of honey Kindang Bulukumba Subdistrict origin. Mineral content in honey is one of the factors determining the quality of honey, for the analysis of minerals (copper, lead and cadmium) and test of bio-chemical physics with ICP-OES instruments. The concentration of minerals copper, was 0, 024mg/L, while the lead and cadmium was not detected by the value parameter test bio-chemical physics is honey; the grey levels of 0.26%; moisture content 19,69%; DHL 0, 41mS/cm; the acidity of 22, 06meq/kg; pH 4.43; 7.19% protein; fat 0,1301%; 77,55% carbohydrates. The results showed that the original honey Kindang has a quality in accordance with the National standard of Indonesia and the International Honey Commissio
PURIFICATION, ANTIOXIDANT ACTIVITY AND TOXICITY POLYSACCHARIDE FRACTION FROM RED ALGAE Gracilaria verrucosa
No full text it contains polysaccharide compound. This research aims to isolate and examine the activity of antioxidant and toxicity of polysaccharide extract and fraction fromred algae Gracilariaverrucosa. The study was carried out by isolating the polysaccharide extract using aqueous 100 o C and methanol-ethanol precipitation .Purification of polysaccharide done by Column Chromatography DEAE-Cellulose and analysis polysaccharide concentration was using phenol-sulfuric acid. Antioxidant activity of crude extract and polysaccharide fraction was examined using DPPH method, and toxicity test was carried out using Brine Shrimp Lethality Test (BSLT). The research results reveals that the highest polysaccharide concentration was fraction 7 with value of 0,267 mg/mL, and the crude extract and fraction 4 have strongest antioxidant activity with IC50 values of 51,22 and 62,25 ppm, respectively. The result of BSLT assay showed that the crude extract and fraction 6 has a highest toxicity with LC50 values of 47,73and 58,48 ppm, therefore it is classified as toxic. The polysaccharide of crude extract and fraction 7 has a potential to be developed as an alternative antioxidant and antitumor agent. Identification with FT-IR shows the characteristic bands of agarocolloid
Water supply and sanitation status in educational institutions at Mirzapur of Tangail district, Bangladesh
No full textThe study was conducted to assess the quality of drinking water supply and sanitation status in educational institutions at Mirzapurpourashava of Tangail district during the period of January to February 2014. The water samples were collected from tube wells of 15 different educational institutions, while a questionnaire survey of 150 respondents based on reconnaissance survey was performed in order to investigate the drinking water quality and sanitation status of 15 selected educational institutions. The study found the pH ranged from 7.23 to 7.95, EC from 264 to 542 µS/cm, TDS from 136 to 272 mg/l, DO from 1.90 to 4.30 mg/l, hardness from 120 to 298 mg/l, and Fe from0 to 10 mg/l. All the observed water quality parameters were relatively within the standard limits for Bangladesh except DO, whereas Fe concentrations in three primary schools also exceeded the standard value of Bangladesh drinking water quality of 0.3-1.0 mg/l. The survey results revealed that mainly two types of tube wells i.e. shallow tube wells and Tara pump tube wells were used for water supply in those educational institutions, while maximum tube wells were with a depth of 140-180 feet (47% of tube wells), 100-140 feet (23% of tube wells) and from 180-220 feet (rest 30%). No soap and/or toilet tissue was found in 40% toilets, while 60% toilets were with soap and/or toilet tissue facilities. The study observed that the existing water supply and sanitation facilities were inadequate and the situation was worst for primary educational institutions. Three institutions were found having a distance of less than 10m between toilet and source of drinking water which indicated the risk of ground water pollution
DETERMINATION OF PLUMBUM (Pb) SEAWEED Sargassum sp. AND Eucheuma spinosum IN WATER PUNTONDO REGENCY OF TAKALAR SOUTH SULAWESI
No full textSeaweed is a low-grade plant that forms the thallus of the thallophyta division (leafless structure). In Takalar district especially in puntondo waters is a seaweed producing area, such as red seaweed (Eucheuma spinosum) and brown seaweed (Sargassum sp). The presence of lead (Pb) in aquatic bodies can come from natural sources and from human activities. However, as industrial and transport usage increases, lead concentration (Pb) in nature can increase. The purpose of this research is to know the content of lead metal (Pb) in some seaweed in Puntondo waters of Takalar Regency. This research is laboratory observation by using sampling technique of Aciddental Sampling. The object of this research is 4 (four) seaweed samples examined (Pb) level in Chemical Laboratory Faculty of Saintek UIN Alauddin Makassar. The results showed that there was Pb concentration in RLM 1 sample 1.7024 mg / kg. In RLM 2 samples there was Pb level of 0.1686 mg / kg. In RLC 1 samples, there was Pb content of 0.99 mg / kg, and in the sample RLC 2 there is a level of Pb as 1.1686 mg / kg. From this result obtained the highest result of Pb on RLM 1 sample that is 1,7024 mg / kg, and the lowest Pb level in RLM 2 sample that is 0,1686 mg / kg
ANALYSIS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAH) COMPOUNDS FROM SEDIMENT IN THE WATERS KAYU BANGKOA PORT AND DEGRADATION OF PHENANTHRENE IN SEDIMENT BY USING KMNO4 OXIDIZER
Full text linkResearch about analysis of Polycyclic Aromatic Hydrocarbon (PAH) from sediments in water of Kayu Bangkoa Port and degradation of phenanthrene from sediments by using KMnO4 have been conducted by Gas Chromatography Mass Spectrophotometry (GC-MS). The samples of sediment were taken at three location in the waters of the Kayu Bangkoa Port. Measurements of phenanthrene performed by standard internal method and analyzed using GC-MS. The results show that KMnO4 oxidizing agent capable of degradated the whole phenanthrene with concentration of 137,13 ng/g in sedimen