Autor: K. Grabinski (k.grabinski_at_lacma.com.pl)
Data: Fri 30 Apr 2004 - 11:36:59 MET DST


Chcialbym poruszyc kwestie zmian zywnosci jakie nastepuja podczas podgrzewania w kuchence mikrofalowej. Dowiedzialem sie niedawno, ze nie powinno sie tak podgrzewac mleka dla niemowlaka. Lekarz powiedzial, ze aminokwasy racemizuja. Zaciekawilo mnie to, bo to oznacza, ze racemizuja nie tylko w mleku, ale w innych produktach takze, co moze potencjalnie byc szkodliwe. Podobnie moga epimeryzowac cukry i inne chiralne produkty. Czy ktos wie wiecej na ten temat?

--
Witek
http://www.trimen.pl/witek/

Witam

Dawno to na studiach mialem i raczej od strony ile sie pieniedzy na tym
zarabia i co mozna obrabiac w ten sposob bez zmian sensorycznych i
funkcjonalnych zywnosci.
Wiem, ze prowadzone sa badania na SGGW dotyczace zian w zywnosci poddawanej
obrobce za pomoca mikrofal.
np. kolezanaka z mojego rocznika robila prace dotyczaca zmian w tluszczach
pod kierownictwem prof. Krygiera.
Z tego co pamietam to podczas podgrzewania w kuchence mikrofalowej nastepuje
wbudzenie niektorych pierwiastkow i zwiazkow (rejonow) co powoduje
podniesienie temperatury. Niestety proces ten powoduje rowniez zmiany
konformacji niektorych zwiazkow z L na D lub w przypadk aminokwasow z trans
na cis lub w przypadku tluszczow odwrotnie (cis na trans). Niestety te
"drobne" zmiany powoduja ze zwiazki staja sie nieaktywne biologicznie lub
nawt toksyczne. Ponizej artykulik o tym, a tak nawiasem to takie glosy sa
zbyt slabe w porownaniu do producentow mikrofalowek :P


Health Effects of Microwave Radiation - Microwave Ovens
by Lita Lee, Ph. D.
Because the body is electrochemical in nature, any force which disrupts or
changes human electrochemical phenomena will affect the physiology of the
body. This is described in Robert O. Becker's book, The body Electric, and
in Ellen Sugarman's book, Warning, the Electricity Around You May Be
Hazardous to Your Health.

In my book and in two issues of Earthletter (March and September 1991), I
have stated that ALL microwave ovens leak electro-magnetic radiation harms
food and converts substances in it to dangerous organ-toxic and carcinogenic
products. Further research summarized in this article reveals that microwave
ovens are far more harmful than I previously imagined.

Microwave ovens were originally developed by the Nazis for use in their
mobile support operations. After the war, the Allies discovered medical
research done by the Germans on microwave ovens. These documents and the
microwave ovens were transferred to the United States War Department and
classified for reference and scientific investigation. the Soviet Union also
retrieved some microwave ovens and has done the most thorough research on
their biological effects. As a result, their use us outlawed. The Soviets
have issued an international warning on the health hazards (both biological
and environmental) of microwave ovens and similar frequency electronic
devices.

Other Eastern European scientists reported the harmful effects of microwave
radiation and have set strict environmental limits. For reasons not related
to health (smile!), the United States has not accepted European reports of
harmful effects, even though the EPA estimates that radio frequency and
microwave radiation sources are increasing at 15% per year.

First let's discuss microwave ovens, because they have effects on the food
they heat/cook and on the people who ingest it. Then we can broaden this to
include other emitters of magnetic radiation (e.g., any device with an
electric current running through it.)

Microwave ovens emit two types of radiation: the microwaves or high
frequency radio waves, and the 60 hz magnetic fields common to other home
appliances. this comes from the transformers in the back.

The oven door is the most dangerous place for microwave leakage, but
magnetic field can occur all around the oven. this is not good news for
children, who love to watch the foods bubbling inside.

In addition to oven leakage, microwaving causes adverse effects in food.
They include: formation of cancer-causing substances, leakage of toxic
chemicals from the packaging into the foods, and destruction of nutrients.

What happens to people who ingest microwaved foods or who are exposed to
external sources of microwave radiation?

CARCINOGENIC SUBSTANCES IN MICROWAVED FOOD

The following is a summary of the Russian investigations published by the
Atlantis Raising Educational Center in Portland Oregon.

Carcinogens were formed in virtually all foods tested. No test food was
subjected to more microwaving than necessary to accomplish the purpose,
e.g., cooking or thawing or heating to insure sanitary ingestion. Here's a
summary of some of the results:
Microwaving prepared meats sufficiently to insure sanitary ingestion caused
formation of d-Nitrosodienthanolamines, a well known carcinogen.
Microwaving milk and cereal grains converted certain of their amino acids
into carcinogens.
Thawing frozen fruits converted their glucoside- and galactoside- containing
fractions into carcinogenic substances.
Extremely short exposure of raw, cooked or frozen vegetables converted their
plant alkaloids into carcinogens.
Carcinogenic free radicals were formed in microwaved plants, especially root
vegetables.
To this list, I will add results reported in the December 9, 1989, Lancet
which were discussed in the March, 1991, Earthletter. Microwaving baby
formulas converted certain trans-amino acids into their synthetic
cis-isomers. synthetic isomers, whether cis-amino acids or trans-fatty
acids, are not biologically active. Further, one of the amino acids,
L-proline, was converted to its d-isomer, which is known to be neurotoxic

(nervous system) and nephrotoxic (kidneys). It's bad enough that many babies
are not nursed, Now they are given faked milk (baby formula) made even more toxic via microwaving. DECREASE IN NUTRITIVE VALUE OF MICROWAVED FOODS Russian researchers reported a marked acceleration of structural degradation leading to a decreased food value of 60 to 90% in all foods tested. Among the changes observed were: Deceased bioavailability of vitamin B complex, vitamin C, vitamin E, essential minerals and lipotropics factors in all food tested. Various kinds of damaged to many plant substances, such as alkaloids, glucosides, galactosides and nitrilosides. The degradation of mucleoproteins in meats. LEAKAGE OF CHEMICALS FROM THE PACKAGE INTO THE FOOD The January/February, 1990, Nutrition Action Newsletter reported on the leakage of numerous toxic chemicals from the "heat-susceptor" packaging of common microwavable foods, including pizzas, french fries, popcorn, and anything requiring a "crispy" crust or a crunchy texture. Microwave ovens cannot make foods brown and crisp or crunchy. No problem! Heat susceptors are visible thin, gray strips or disks of metallized plastic that absorb microwave energy and turn the surface of the package into a very hot little frying pan which does the trick! There are many chemicals that can be used in heat-susceptor packages, all approved of by the FDA (whew, I was worried!). What was not recognized, however, was that susceptors can reach temperatures of 300 to 500 degrees F. in the microwave. When they do, the chemicals in the plastic migrate from the susceptors into your food. the FDA tested susceptors packages in 1988. Every package tested released chemicals into the food. Among these were PET
(polyethylene terpthalate, a petroleum derived product), and other known or
suspected carcinogens, such as benzene, toluene and xylene. Industry says, no sweat. No health hazard. Nutrition Action Newsletter reports, "The FDA has asked packaging manufactures to identify the chemicals and to submit data on how much they migrate and the health hazards they pose." what a comfort! PATHOGENIC CHANGES OBSERVED IN CONSUMERS OF MICROWAVED FOOD Changes are observed in the blood chemistries and the rates of certain diseases among consumers of microwaved foods. the following is a sample of these changes. Lymphatic disorders were observed, leading to decreased ability to prevent certain types of cancers. An increased rate of cancer cell formation was observed in the blood Increased rates of stomach and intestinal cancers were observed. Higher rates of digestive disorders and a grandual breakdown of the systems of elimination were observed. OTHER SOURCES OF MICROWAVE RADIATION - MICROWAVE SICKNESS The Russians did research on thousand of workers who had been exposed to microwaves during the development of radar in the 1950's. Their research showed health problems so serious that the Russians set strict limits of 10 microwatts for workers and one microwatt for lay people. In Robert O. Becker's book, mentioned above, he described research of the Russians on the health effects of microwave radiation which they called microwave sickness. He said (page 314) "its first signs are low blood pressure and slow pulse. the later and most common manifestations are chronic excitation of the sympathetic nervous system (stress syndrome) and high blood pressure. This phase also often includes headache, dizziness, eyepain, sleeplessness, irritability, anxiety, stomach pain, nervous tension, inability to concentrate, hair loss, plus an increased incidence of appendicitis, cataracts, reproductive problems, and cancer. The chronic symptoms are eventually succeeded by crisis of adrenal exhaustion and ischemic heart disease (blockage of coronary arteries and heart attach)." GENERAL EFFECTS OF MAGNETIC (60 Hz) FIELDS FROM ALL ELECTRONIC DEVICES These effects have been widely studied by the russians and other European scientists and over 300 U.S. scientists. In addition to microwave ovens, other commonly used devices may be dangerous because people use them (within field range) or work near them. The most common of these are electric stoves, TV's, VDT's (the display monitors of computers), cellular telephones, portable radio telephones, clock radios
(usually placed close to the head of the bed), electric hair dryers, radar
gun speed detectors, and ham radios. The list also includes residential magnetic fields from power transmission lines, distributions in the home, The effect has to do with the source of magnetic radiation as well as the part of the body it strikes. For example, the cellular telephone and the portable radio phones both emit high magnetic fields. When in use, they ar held next to the head where the radiation strikes the pineal gland, inhibiting its production of melatonine. Melatonine is a hormone that inhibits breast cancer, among other functions. SOME RECENT PERSONAL EXPERIENCES Since 1986, I lived in a California house which had been wired incorrectly resulting in a low level magnetic field almost though out the house. In August, 1992, my family moved to a country home near Eugene, Oregon. I excitedly ran around our new home, the first thing I noticed was that I was sleeping quite well for the first time in six years! I believe that my sleeplessness was not all due to everyday stress, but also to electromagnetic pollution in my California home! If you are an insomniac, do not assume it is solely because of your financial or personal problems! It may be "electronic smog," and apt term. One day, when the weather turned colder, I noticed that my feet felt warm in the kitchen, even though I was barefoot. "The floor!" I thought. "It's electrically heated, and the heat was not on when I first measured it during the hot season!" The entire kitchen and recreation room read high levels of magnetic radiation on my meter (over 10 milligauses). The dangerous thing about electrically heated floors is that they are a planar source of radiation which does not fall off rapidly. My meter read high magnetic field radiation from my feet to my eyeballs! Common appliances are point sources of radiation, which fall off rapidly, dropping to zero at around three feet. It was an easy solution to turn off the fuses that controlled the heating of the electric floors. better cold feet than magnetic sickness! Beware! test the magnetic field effects in your home when the power is on and at peak times of power output! Otherwise, you may not detect high magnetic field conditions. I recommend a Trifield Meter or similar measuring device to everyone. It can save you a lot of health problems! C Copyright Lita Lee, Reprinted with permission from the author. IG Hawaii, Inc. P. O. Box 1450, Pearl City, HI. 96782-8450
(808) 677-1624, Fax (808) 677-1592
Email: Info_at_ighawaii.com ponizej pare linkow: http://db.impi.org/ http://www.impi.org/Periodicals/JMPEE.html http://www.impi.org/Periodicals/MicrowaveWorld.html

To archiwum zostało wygenerowane przez hypermail 2.1.7 : Fri 30 Apr 2004 - 14:12:21 MET DST