cool gadget..! -----Original Message----- From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]] Sent: Tuesday, January 25, 2000 9:16 AM To: [EMAIL PROTECTED] Subject: [kimia-industri] Supaya beras di Dolog tidak cepat rusak L o o k J a p a n O n - l i n e BY IIKUBO RYUKO Brown rice, electric pulses Rice is usually stored at 15 degrees centigrade, but if it's stored for more than a year, molds and bacteria can still grow to significant levels. To address that problem rice is often sterilized with methyl bromide, a chemical agent named in the Montreal Protocol as a threat to the ozone layer and so must be abandoned by 2004. There is thus a huge and urgent demand for an alternative. Sanyo Electric has been working on a commercial method for sterilizing brown rice using high-voltage electric pulses. In a plastic bin containing 30kg of rice, 825 electrodes are lined up to provide 50-kilovolt electric pulses 100 times per second. The researchers have found that a 15-minute treatment like this kills 99% of molds, yeast, and bacteria growing on the rice. The voltage is high but the current very low, so sterilization by this method costs only 2 yen (less than 150 Rupiah) per kilogram. Sanyo's prototype can sterilize about a ton of rice in an eight-hour workday. Sanyo researchers think the same device could be used for buckwheat and seeds as well. They hope to have a large industrial sterilizer ready for market within two years. ************************************************************** Danial Irfachsyad [EMAIL PROTECTED] Department of Chemistry University of Southampton ************************************************************** --------------------------------------------------------------------- Mulai langganan: kirim e-mail ke [EMAIL PROTECTED] Stop langganan: kirim e-mail ke [EMAIL PROTECTED] Archive ada di http://www.mail-archive.com/[email protected]
