Carcinogen Substances in Brewing Instant Coffee sold in Bandung Minimarket
Carcinogen are substances that causing cancer because the ability to damage genome and disrupting cellular metabolism process. Carcinogens are able to increase the risk of cancer by change cellular metabolism, interfere biology process, and induces malignant division uncontrol that perform tumor, and damage DNA directly to cell. Carcinogen not only related to chemical product, but it also naturally occur. Food and beverages which process by high heat, including grilling, barbecue, or high temperature machinery. Coffee is favorite beverage, coffee has several good effect to health. But, coffee that process by high temperature like in coffee machine are able to producing carcinogens. To identify the carcinogens in coffee, five samples coffee which sold in minimarket in Bandung has been determined. Samples coffee are came from coffee machine, the coffee machine system are able to collect carcinogens of pyrolisis because the closed system. The coffee was determined by Gas Chromatography Mass Spectrophotometry (GCMS) in di Instrument Laboratorium at Universitas Pendidikan Indonesia Bandung, in December 2013- February 2014. Chromatogram of GCMS showed there are some substances found in sample. One of the substance is known as carcinogens and toxic substances in samples coffee from coffee machine. Nitrosomethane is known as carcinogen.