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ANALISIS KANDUNGAN LOGAM Pb, Cu, Cd DAN Zn PADA SAYURAN SAWI, KANGKUNG DAN BAYAM DI AREAL PERTANIAN DAN INDUSTRI DESA PAYA RUMPUT TITIPAPAN MEDAN Yusuf, Muhammad; Nurtjahja, Kiki; Lubis, Rosliana
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 3, No 1 (2016): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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The levels of Pb, Cu, Cd and Zn in sawi (Barsssica rapa), ground kuna (Ipomea reptans), and spinach (Amaranthus tricolor) in the area of Paya Rumput Titipapan Medan village have been done. The goal is to know the levels of these metals in vegetables grown in the agricultural area of Paya Rumput Titipapan Village. Samples taken randomly in wash drained and weighed. Wet weight then dried at a temperature of 50-100o C for 3 hours, After dry on weigh in gerus until smooth. The sample was destructed with concentrated nitric acid with temperature 80o C, the sample was analyzed by using atomic absorption spectrophotometric (AAS). The results showed the highest levels of lead found in spinach is 6 mg / kg. Levels of cadmium in kale and spinach is 3 mg / kg. While the Cu content on the analysis results are still within the maximum limit. The concentration of Pb, Cd, Zn in each sample exceeds the maximum allowed by the Decree of Dit Jend POM No 03725 / B / SKVII / 89 and SNI 7387: 2009.

PENETAPAN BOBOT TIMBULAN SAMPAH RUMAH TANGGA DI TIGA LINGKUNGAN DI KELURAHAN BANTAN KECAMATAN MEDAN TEMBUNG KOTA MEDAN Rizkiyah, Zakki; Nugrahalia, Meida; Lubis, Rosliana
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 3, No 1 (2016): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.456 KB)

This reseach aims was to find out how much of the total solid waste generated both organic and inorganic solid waste weight calculation is done in the village Batan. This type of research is descriptive research with sampling propotional stratified random sampling method. From the data obtained is then perfomed calculation of average waste generation per capita per day, and presentage of the composation. Result of the study found that the average weight of waste generation on the Linkungan IX 0,30 Kg/soul/day, Lingkungan XI 0,37 Kg/soul/day and the Lingkungan XII 0,343 Kg/soul/day. The perecentage compotition of the organic waste of the Lingkungan IX at 57% and 43% inorganic waste, Lingkungan XI 54% organic and 40% for inorganic waste and Lingkungan XII where as 54% of organic waste inrganic 46%. Average weigth of waste to high-income households 1,03 Kg/soul/day, was 0,99 Kg/soul/day and allow 1:03 Kg/soul/day. The perecentage weigth of waste product by high-income households the Lingkungan IX, XI, XII respect tively 32%, 37%, 31%. Modereta income households in the Lingkungan IX, XI, XII respect tively 33%, 35%, 34%. Are for low-income households in the Lingkungan IX 31%,35% Lingkungan XI and XII 34%.

SKRINING FITOKIMIA DAN UJI ANTIMIKROBA EKSTRAK KASAR BAWANG BATAK (Allium cinense) TERHADAP BAKTERI Staphylococcus aureus DAN Escherichia coli Rubiatik, Siti; Sartini, Sartini; Lubis, Rosliana
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 2, No 1 (2015): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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The purpose of this research is to determine the composition of secondary metabolites of crude extract âbawangbatakâ (AlliumÂ cinense) and anti-microbial properties of the extract against Staphylococcus aureus and Escherichia coli. This research was conducted in three (3) stage, stage IÂ by the manufacturing of crude extract of garlic bulbs âbawangbatakâ, Allium cinense, through maceration method using a solvent n-hexane and methanol. In stage II, screening fitokimia, that is identification of secondary metabolites (alkaloids, flavonoids, terpenoids and steroids) to the crude extract of tuber âbawangbatakâ, Allium cinense, and phase III, test bioktifitas crude extract bulb ofÂ âbawangbatakâ Allium cinense in the form of extracts antimicrobial properties against Staphylococcus aureus and Escherichia coli extract using the concentration variation of 0%, 1%, 5%, 15%, 20%, and 25% and incubation at 370C for 24 hours. The results showed that secondary compounds was dominated by flavonoids, steroids, terpenoid and tannins. While at the test screening phytochemicals extra n-hexane showed no secondary metabolites, test bioktivitas against bacteria have inhibitory at a concentration of 15% with inhibition zone 14 mm in bacteria Escheriachia coli and 10 mm in bacteria Staphylococcus aureus this indicates onion extractÂ of âbawangbatakâÂ has the ability as an anti-microbial.

PEMANFAATAN KITOSAN DARI LIMBAH CANGKANG KERANG BULU(Anadara inflata) SEBAGAI BAHAN PENJERNIH AIR SUNGAING DARI LIMBAH KULIT DURIAN Lubis, Rosliana; Usman, Muhammad
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 1, No 1 (2014): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

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The title ofÂ this study is the utilization of chitosan from shellfish waste as water purifier. The purpose of the study is to utilize coagulant of shellfish waste in water treatment proes into clear water. The research variabel are the concentration of chitosan 1,3,5,7, and 9 g/l. The particle size of chitosan used in this research is 150 mesh. The time consumeÂ 8 hours for purification process. The result showed that 9 g/l chitosan shell waste is effective to water purification process. At a concentration of 9 g/l. Chitosan shellfish waste can produce clean water in complianee with health minister No. 416/MENKES/PER/IX/1990 aboutÂ water quality treatment.

PENGARUH KADAR ASAM SULFAT PADA HIDROLISIS TANDAN KOSONG KELAPA SAWIT (TKS) DAN WAKTU FERMENTASI TERHADAP KADAR BIOETANOL YANG DIHASILKAN sartini, Sartini; Fitriani, Rita; Lubis, Rosliana
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

The effect of sulphuric acid fermentation of processed palm oil bunch hydrolysis and on ethanol and sugar production was conducted. The aim was to investigate the hydrolytic optimum required by Saccharomyces cerevisiae for ethanol and sugar production. About 12.5 g powdered palm oil bunch was used in this experiment. The powder was hydrolized several times using sulphuric acid in several concentration. Sugar, product ofÂ hydrolysis, was detected every one hour using spectrophotometer. The sugar was fermented by Saccharomyces cerevisiae and incubated for several days. Results showed that 2-4% sulphuric acid was oprimum concentration for 30 g/L sugar production. The highest ethanol production 4.94% occurred after two days fermentation.

Skrining Fitokimia dan Antimikroba Ekstrak Daun Kirinyuh terhadap Bakteri Staphylococcus Aureus Dan Escherichia Coli Munte, Nuriana; sartini, Sartini; Lubis, Rosliana
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 2, No 2 (2016): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

This reseach aims to determine the composition of secondary metabolites of kirinyuh leaf extract (Euphatorium ordoratum.L) and antimicrobial properties of the extract against Staphylococcus aureus and Escherichia coli. The study was conducted in three phases: the first phase is manufacture kirinyuh leaf extract (Euphatprium odoratum L) through maceration method using N-Hexane solvent and methanol. In stage II, phytochemical screening, namely the identification of secondary metabolites (alkaloids, flavonoids, terpenoids and steroids) to the crude extract ofÂ leaves kirinyuh (Ephatorium odoratum L) in the form of antimicrobial properties of extracts against Staphylococcus aureus and with variations extract concentrations of 0%, 1 %, 5%, 10%, 15%, 20%, and 25% Echerichia coli and incubated at 37Â°C for 24 hours. The research found that such compounds secondary metbolit alkaloids, flavonoids, steronoid, and saponin, which dominates the secondary metabolites of four that alkaloid. While the screening test of phytochemical N-hexane extracts is not contain metbolit secondary compounds, testing against bacteria possess bioktivitas inhibition at concentrations of 15% with inhibition zone of 1.3 cm on Escherichia coli bacteria and 1.0 cm in bacteria Staphylococcus aureas. This shows kirinyuh leaf extracts have the ability as an anti-microbial.

PROSES ADSORPSI SENYAWA LINIER ALKILBENZENE SULFONAT (LAS) MELALUI ARANG AKTIF KULIT UBI KAYU Lubis, Rosliana; Atsary, Tsara
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 1, No 2 (2015): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

This research aims was to analyze the potential of activated charcoal leather cassava in the adsorption process linear compounds alkilbenzene sulfonate (LAS) contained in the liquid waste household detergents. Stages of the study consisted of charcoal formation process of the skin of cassava through the combustion process of pyrolysis, charcoal leather activation process cassava, and the compound adsorption process linear alkyl sulfonate (LAS) contained in the liquid waste household detergents. The results showed that activated charcoal is formed from leather waste cassava LAS have the ability to adsorb the compounds contained in domestic wastewater. Treatment optimum adsorption occurs at a concentration of activated charcoal leather cassava 4 grams and a contact time of 20 minutes.

PENETAPAN BOBOT TIMBULAN SAMPAH RUMAH TANGGA DI TIGA LINGKUNGAN DI KELURAHAN BANTAN KECAMATAN MEDAN TEMBUNG KOTA MEDAN Zakki Rizkiyah; Meida Nugrahalia; Rosliana Lubis
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 3, No 1 (2016): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v3i1.813

This reseach aims was to find out how much of the total solid waste generated both organic and inorganic solid waste weight calculation is done in the village Batan. This type of research is descriptive research with sampling propotional stratified random sampling method. From the data obtained is then perfomed calculation of average waste generation per capita per day, and presentage of the composation. Result of the study found that the average weight of waste generation on the Linkungan IX 0,30 Kg/soul/day, Lingkungan XI 0,37 Kg/soul/day and the Lingkungan XII 0,343 Kg/soul/day. The perecentage compotition of the organic waste of the Lingkungan IX at 57% and 43% inorganic waste, Lingkungan XI 54% organic and 40% for inorganic waste and Lingkungan XII where as 54% of organic waste inrganic 46%. Average weigth of waste to high-income households 1,03 Kg/soul/day, was 0,99 Kg/soul/day and allow 1:03 Kg/soul/day. The perecentage weigth of waste product by high-income households the Lingkungan IX, XI, XII respect tively 32%, 37%, 31%. Modereta income households in the Lingkungan IX, XI, XII respect tively 33%, 35%, 34%. Are for low-income households in the Lingkungan IX 31%,35% Lingkungan XI and XII 34%.

PENGARUH KADAR ASAM SULFAT PADA HIDROLISIS TANDAN KOSONG KELAPA SAWIT (TKS) DAN WAKTU FERMENTASI TERHADAP KADAR BIOETANOL YANG DIHASILKAN Sartini sartini; Rita Fitriani; Rosliana Lubis
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v4i2.1191

The effect of sulphuric acid fermentation of processed palm oil bunch hydrolysis and on ethanol and sugar production was conducted. The aim was to investigate the hydrolytic optimum required by Saccharomyces cerevisiae for ethanol and sugar production. About 12.5 g powdered palm oil bunch was used in this experiment. The powder was hydrolized several times using sulphuric acid in several concentration. Sugar, product of hydrolysis, was detected every one hour using spectrophotometer. The sugar was fermented by Saccharomyces cerevisiae and incubated for several days. Results showed that 2-4% sulphuric acid was oprimum concentration for 30 g/L sugar production. The highest ethanol production 4.94% occurred after two days fermentation.

PROSES ADSORPSI SENYAWA LINIER ALKILBENZENE SULFONAT (LAS) MELALUI ARANG AKTIF KULIT UBI KAYU Rosliana Lubis; Tsara Atsary
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 1, No 2 (2015): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v1i2.723

This research aims was to analyze the potential of activated charcoal leather cassava in the adsorption process linear compounds alkilbenzene sulfonate (LAS) contained in the liquid waste household detergents. Stages of the study consisted of charcoal formation process of the skin of cassava through the combustion process of pyrolysis, charcoal leather activation process cassava, and the compound adsorption process linear alkyl sulfonate (LAS) contained in the liquid waste household detergents. The results showed that activated charcoal is formed from leather waste cassava LAS have the ability to adsorb the compounds contained in domestic wastewater. Treatment optimum adsorption occurs at a concentration of activated charcoal leather cassava 4 grams and a contact time of 20 minutes.

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