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ANALISIS KANDUNGAN LOGAM BERAT TI MBAL (Pb) DAN KADMIUM (Cd) DALAM UDANG PUTIH (Litopenaeus vannamei) YANG DIPEROLEH DARI MUARA SUNGAI BANJIR KANAL BARAT DAN PERAIRAN PANTAI KOTA SEMARANG Aqnes Budiarti; Kusreni Kusreni; Siti Musinah
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2010): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 1 2010
Publisher : Prosiding SNST Fakultas Teknik

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Abstract

Pembuangan limbah industri, rumah tangga dan kegiatan masyarakat lainnya sangat berpotensi menyebabkan pencemaran air. Penelitian ini dilakukan dengan tujuan untuk mengetahui perbandingan kandungan cemaran logam berat Pb dan Cd yang terakumulasi dalam udang Putih (Litopenaeus vannamei) yang diperoleh dari muara sungai Banjir Kanal Barat dan perairan pantai Kota Semarang.  Penelitian bersifat non eksperimental, analisis data secara deskriptif analitik. Sampel diambil secara acak sederhana, kadar Pb dan Cd diukur dengan spektrofotometer serapan atom. Data diolah dengan uji statistik non parametrik.  Hasil penelitian  menunjukkan bahwa udang Putih yang diperoleh dari kedua lokasi mengandung logam Pb dan Cd. Kadar logam Pb pada udang Putih dari muara sungai 0,1033 ± 0,0137 mg/kg dan dari perairan pantai 0,093 ± 0,052 mg/kg. Kadar  Cd pada udang Putih kedua lokasi  sama yaitu 0,010 mg/kg. Kadar Pb pada air di kedua lokasi 0,008 mg/l. Kadar Pb pada sedimen muara sungai 7,160 ± 4,487, perairan pantai 1,682 ± 0,233 mg/kg. Kadar Cd pada sedimen muara sungai 0,637 ± 0,570 dan sedimen perairan pantai 0,506 ± 0,185 mg/kg, Kandungan Pb dan Cd dalam udang Putih pada kedua lokasi tidak berbeda secara bermakna dan tidak melebihi ambang batas cemaran logam berdasarkan keputusan Dirjen POM No.03725/B/SK/VII/1989. Nilai BAF  logam berat terlarut dalam air lebih tinggi dibandingkan dengan logam berat dalam sedimen.   Kata kunci :  Logam berat, Timbal, Kadmium, Spektrofotometri Serapan Atom, Udang Putih (litopenaeus vannamei)
ANALISIS KANDUNGAN BORAKS SEBAGAI BORON PADA GENDAR YANG DIPRODUKSI OLEH INDUSTRI RUMAH TANGGA DI DAERAH AMBARAWA sugiyono sugiyono; siti musinah; rukhanah rukhanah
Jurnal Ilmu Farmasi dan Farmasi Klinik JURNAL ILMU FARMASI DAN FARMASI KLINIK VOL. 6 NO. 1 JUNI 2009
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.762 KB) | DOI: 10.31942/jiffk.v6i1.815

Abstract

ABSTRACTGendar is a type of food produced by adding bleng, which is a chemical compound containing borax asboros. This research was intended to find out (1) the borax contents in the gendar taken from Ambarawa areas and(2) whether there were significant differences in borax levels contained in fresh gendar, dry gendar, gendar fried infresh vegetable oil and gendar fried in used vegetable oil.This was a non-experimental research with the data analyzed descriptively and analytically. The variablesmeasured were borax levels, acting is boros, contained in fresh gendar, dry gendar, gendar fried in fresh vegetableoil and gendar fried in used vegetable oil. The samples for this research were taken randomly from three householdindustried of gendar in Ambarawa areas. The contents of borax were measured using spectrophotometri UV-Vis.The analyses on the borax content in the four types of gendars (fresh gendar, dry gendar, gendar fried in freshvegetable oil and gendar fried in used vegetable oil) used Kruskall-Wallis non-parametric statistical tests followedby Mann-Whitney tests.The analyses showed that all of the four types of gendars really contained borax, as boros, but in diffirentlevels among the diffirent gendars borax contents in the four different gendars taken from Bandungan andSumowono had significant values 0,182 and 0,643 respectively (P > 0,05), contents in the four different gendarstaken from Ambarawa areas also had a significant value of 0,004 (P < 0,05), meaning also that there werestatistically significant differences in the borax contents.Keywords : Borax, Gendar, Spectrophotometri UV-Vis.
PENGARUH PERENDAMAN DALAM AIR HANGAT TERHADAP KANDUNGAN FORMALIN PADA MIE BASAH DARI TIGA PRODUSEN YANG DIJUAL DI PASAR JOHAR SEMARANG aqnes budiarti; supriyanti supriyanti; siti musinah
Jurnal Ilmu Farmasi dan Farmasi Klinik JURNAL ILMU FARMASI DAN FARMASI KLINIK VOL. 6 NO. 1 JUNI 2009
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.452 KB) | DOI: 10.31942/jiffk.v6i1.811

Abstract

ABSTRACTIt is assumed that the use of formalin in fresh noddles is still relatively high since its use not only prolongs the market life of the noddles but also make them tougher, brighter and non-adhesive. This research was intended to (1) analyze the presence of formalin in fresh noddles, (2) find out the levels of formalin contained in fresh noddles produced by three producers and sold in Johar Market, Semarang City and (3) find out the effects of bathing the noddles in warm water on the formalin contents.This was an experimental research with descriptive analyses. Employing a convenient sampling technique, the samples for this research were taken from the noddles produced by three producers and sold at Johar Market, Semarang City. To test the presence of formalin in the noddles, a chromatropatory-acid method was used. The samples containing formalin were analyzed using a spectrophotometer at an A of 569 nm. The samples were bathed for 15 minutes at temperatures of 40° C and 50° C. The effects of the bathing were analyzed by comparing the formalin contents before and after the bathingThe analyses showed that the fresh noddles produced by Kaligawe, Boja and Lamper producers contained 230,749 ± 18,092 mg/kg, 271,749 ± 18,088 mg/kg and 250,999 ± 18,090 mg/kg respectively. The comparison of the formalin contents before and after the bathing at 40° C showed significant differences. The comparison of the formalin contents before and after the bathing at 50° C also showed significant differences. The comparison of the formalin contents after the bathing at 40° C and 40° C also showed significant differences; the 40° C bathing reduced 39.77% of the formalin content, while the 50° C bathing reduced 65.42%.Keywords: Formalin, Fresh Noddles, Bathing and Warm Water