. Suliantari
Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Bogor

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CEMARAN ASPERGILLUS FLAVUS DAN AFLATOKSIN PADA RANTAI DISTRIBUSI PRODUK PANGAN BERBASIS JAGUNG DAN FAKTOR YANG MEMPENGARUHINYA [Contamination of Aspergillus flavus and Aflatoxin at Distribution Chain of Maize Based Food Product and its Influencing Factors Harsi D. Kusumaningrum; . Suliantari; Aris D. Toha; Sindhu H. Putra; Aldilla S. Utami
Jurnal Teknologi dan Industri Pangan Vol. 21 No. 2 (2010): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.597 KB)

Abstract

Aflatoxin is a human carcinogen, produced by fungus Aspergillus flavus that frequently contaminates maize. Analysis of A. flavus by plate counting and aflatoxin by Thin Layer Chromatography were performed on 104 samples and 25 samples, respectively, of maize grain and maize based food products from different places in Bogor-West Java, Boyolali-Central Java and Bojonegoro-East Java. These regions support significant number of maize production in Java. Forty percent of the samples were contaminated by A. flavus, whereas aflatoxin level of higher than 20 ppb was found in 4 of 25 samples. The highest contamination level of A. flavus was found at the collector trader that often stored the maize grain in average of 15 days, at room temperature. There was a significant correlation between the length of storage as well as relative humidity with the contamination levels of A. flavus. Significant correlation was also found between the contamination levels of A. flavus with the level of aflatoxin in maize grain. However, no significant correlation was found between the aflatoxin level and the contamination levels of A. flavus in the processed maize based food products.
AKTIVITAS ANTIBAKTERI FRAKSI-FRAKSI EKSTRAK SIRIH HIJAU (Piper betle Linn) TERHADAP PATOGEN PANGAN [Antibacterial Activity of Fractionated Green Sirih (Piper betle Linn) Extract Against Food Pathogenic Bacteria] . Suliantari; Betty S. L. Jenie; Maggy T. Suhartono
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.882 KB) | DOI: 10.6066/jtip.2012.23.2.217

Abstract

Fractionation of green sirih (Piper betle Linn) extract by chromatography colom using the mixture of several solvents i.e. chloroform, ethanol and acetic acid (4:1:1) resulted in 17 fractions. All fractions showed antibacterial activities but only 2 fractions (fraction 3 and fraction 4) showed the highest inhibition towards the six tested bacteria Escherichia coli, Salmonella Typhimurium, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus and Listeria monocytogenes. Among the tested bacteria, all fractions of green sirih extracts showed the most effective inhibition against, Salmonella Typhimurium with inhibition zone diameters ranging from 10 mm to 26 mm. Identification using GC-MS found that fraction 3 and fraction 4 contained chavicol; dodecanoic acid, myristic, palmitic and oleic acid.