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Journal : Jurnal Pelangi

KONSENTRASI HAMBAT MINIMUM (KHM) EKSTRAK DAUN TEH (Camellia sinensis L.) PADA Escherichia coli DAN Salmonella sp. WIDIANA S.Si, M.Si, RINA
Jurnal Pelangi : Research of Education and Development Vol 4, No 2 (2012)
Publisher : STKIP PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.713 KB) | DOI: 10.22202/jp.2012.v4i2.14

Abstract

Diarrhea is the condition loosing too much liquid and electrolyte throughfeces and it is second biggest cause of infant death in Indonesia. Diarrhea iscaused by Salmonella sp and Escherichia coli bacteria. Inappropriate drug usedsuch as anti diarrhea and antibiotic can cause another health problem. Analternative treatment which does not cause side effect to the diarrhea victim isusing an anti microbe active of the plant medicine. One of the plant which is usedby the people as a treatment for the diarrhea victim is tea leaves (Camelliasinensis L.). it contains anti microbe active such as catecin, tannin, flavonoid andsaponin. Thus, the research was conducted to find out the minimum restrictionconcentrate of Camellia sinensis L. in E. coli and Salmonella sp.The minimum restriction concentration is used dilution method with jellyas the media (Jelly dilution method) by double it. The concentrations of E. coliare 50 %, 25 %, 12,5 %, 6,25 %, 3,125 % and 1,56 % with 10 % antibioticampicilin control. The concentrations for Salmonella sp are 50 %, 25 %, 12,5 %,6,25 %, 3,125 %, 1,56 %, 0,78 %, 0,39 %, 0,195 % and 0,0975 %. The data wasanalyzed in qualitative method by examining the minimum restriction of tealeaves extract (Camellia sinensis L.) in the bacteria that caused diarrhea. Theresearch was conducted on August 2010 in Biology Laboratory of STKIP PGRIWest Sumatera. Tea leaves was extracted in Chemical Laboratory of KopertisWilayah X Padang. The research found that E. coli is more resistant to tea leavesthan Salmonella sp. The minimum restriction concentrate of tea leaves extract(Camellia sinensis L.) in E. coli is 3,125% and 0,0975% in Salmonella sp.
KOMPOSISI FITOPLANKTON YANG TERDAPAT DI PERAIRAN BATANG PALANGKI KABUPATEN SIJUNJUNG Widiana, S.Si., M.Si, Rina
Jurnal Pelangi : Research of Education and Development Vol 5, No 1 (2012)
Publisher : STKIP PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.43 KB) | DOI: 10.22202/jp.2013.v5i1.4

Abstract

ABSTRACTPhytoplankton is water plant which floats freely and float away in water andable to photosynthesis. Phytoplankton has important role since it become foodfor animals are life in that water, such as fish and insect. Morever, phytoplanktonis able to influence the quality of water. There are some houses, livestock marketand farmland. Water of Batang Palangki river is used to fulfill daily needs, meansof gold mining, sand, bathing place for livestock and fish catching. A researchhas been done in Batang Palangki river. Its purpose is to know the phytoplanktoncomposition in Batang Palangki river. This research was conducted by usingdescriptive survey method which chose four research stations that is station Isettlement area, station II farm, station III gold mining area and station IV postarea of gold mining. Sample was selected in 3 spots for each station, namely left,right and center of river. Parameter which was measured was abundance, relativedensity, frequency and relative frequency, and quality parameter of water whichwas measured was temperature, pH, the flow of speed, DO, and CO2. From theresult of this research, it was found that the phyotoplankton composition was 4classes, 4 ordo, 9 families and 13 genus. Total abundance was 24,68 individu/l,abundance is highest in station II was 8,34 individu/l, and then station I was 7,98individu/l, station IV was 4,93 individu/l and station III was 3,43 individu/l. Classthat highest abundance was Bacillariophyceae, was 16,55 individu/l and minimallow was Euglenophyceae, was 0,46 individu/l. Genus that highest abundance wasNavicula, was 4,78 individu/l and minimal low was Phacus was 0,46 individu/l.Key word: water pollution, composition, phytoplankton