Upload
isabel-lily-jordan
View
214
Download
0
Tags:
Embed Size (px)
Citation preview
RECENTS TECHNOLOGY ON PRESERVING FOODS
WEEKS 10PROF. SIMON B.W.
OZONEPRODUCE BY OZONE GENERATOR
HOME APPLIANCES PURPOSES
PRICE : US$ 295.00/UNIT, OUTPUT : 450 MG O3/HrREMOVE PERSISTENT BAD ODOR AND KEEP ITS AWAY
OZONE MONITOR
Features:
Min, Max & Average ozone levels displayedExcellent AccuracyReplaceable sensor headPortable & wall mountableDigital LCD Display (large numbers)
HOW ozone generator WORKS
OZONE GENERATOR PLASTIC HOSE
Lightning Strikes The Ground 100-times A Second On The Earth. This Is How Mother Nature Produces Ozone To Destroy Odors
And Contaminants.An electrical discharge (a spark) splits an oxygen molecule into two oxygen atoms. (Electrical discharge is also referred to as corona discharge.) These unstable oxygen atoms combine with other oxygen molecules. This combination forms ozone.
FOOD PRESERVATION WITH OZONE
• Ozone can reduce contamination on food and increase storage life. The age-enhancing hormone ethylene is instantly destroyed. This reduces spoiling and keeps the food looking fresh.
KEEPS THE FOODS LOOKING FRESH
Ozone Advantages
• most powerful oxidizer available • instantly destroys microbes • eliminates chemical storage • environmentally friendly • stops mold spores • does not affect product taste • no harmful by-products • can be used in air and water
MICROBE DESTRUCTION ON MEAT
14 DAYS IN OZONATED COOLER
14 DAYS IN REGULER COOLER
EFFECTS OF OZONE ON RED CHERRY
OZONE ADVANTAGESimprove water quality
faster growth rates
decrease deathloss
safe for fish
increases DO levels
destroys organics
DIALOG WEB ON OZONE :ANONYMOUS WROTE
• Hello to all ozone-interested people!For the time being I'm preparing a paper on Ozone Disinfection. I'm writing about the usage of it in both water treatment and Food Industry. But it is somehow not that easy to find information about the usage of ozone in the Food Industry. Some concrete information....If anyone knows about such info, I'd be glad if they could share it with me.... I'm a Food Science student and taking this work real serious....Thanx to everyone in advance....RegardsG. Karlsen
ANSWER: OZONE PTY Ltd. ADMINISTRATOR
• Dear G. Karlsen,
The Electric Power & Research Institute (EPRI) has published a very good compilation of different papers regarding ozone use in the food industry. All papers are scientifically reviewed and very well written. If you provide me your e-mail address, I will send it to you in PDF format.
HOW OZONE KILLS BACS
• SEE PICTURES BELOW
EFFECTS OZONE ON BACTERIA
1. -Computer generated image of a bacteria cell2 - Close-up of ozone molecule coming into contact with bacterial wall3 - Ozone penetrating and creating hole in bacterial wall4 - Close-up effect of ozone on cell wall5 - Bacterial cell after a few ozone molecules come into contact6 - Destruction of cell after ozone (cell lysing)
SET-UP EXPERIMENT FOR OZONE TECHNOLOGY OR OZONE TREATMENT• OZONE: GAS from ozone GENERATOR via a
plastic pipe line into a water tank, • TREATED WATER CONTAINING OZONE GAS
@ VARIES CONCENTRATION, @ VARIES DIPPING TIME
• EXAMPLE : PATHOGEN DOSAGE • E-coli (in clean water) 99.99% destruction at
0.25 mg/l for 1.6 minutes • E-coli (in wastewater) 99.9% destruction at 2.2
mg/l for 19 minutes
Pathogen Dosage
• Aspergillus Niger (Black Mount) Destroyed by 1.5 to 2 mg/I
• Bacillus Bacteria Destroyed by 0.2 m/I within 30 seconds
• Salmonella Bacteria Very susceptible• Salmonella typhimurium 99.99% destruction
at 0.25 mg/l for 1.67 minutes in water• Virbrio Cholera Bacteria Very susceptible
TRY FOR YOUR own EXPERIMENT • THE EFFECTS OF OZONE TREATMENTS ON STORAGE LIFE
AND QUALITY ATTRIBUTES ASSOCIATED WITH COMMON CONSUMER PREFERENCES
• CHOOSE YOUR OWN TREATMENTS AND OWN COMMODITIES.
• WE WILL DISCUSS your Assignment at June 10th-2008, I MAY BE AWAY FROM Mei 31, up to JUNE 5th, GOING ABROAD.
• LOOK RELATED INFORMATION S FROM THE WEBS, INSTEAD OF MY WEB. simonbwidjanarko.wordpress.com
• Under : HALAMAN, MATA KULIAH: • FISIOLOGI S-2