http://www.wddty.com/033638003689555448 ... -oven.html
Do not heat milk in a microwave oven
Heating or thawing human milk by microwave causes a decrease in the level of anti infective factors in the milk, even when low temperatures (20-53¡C) are used (Pediatrics, 1992; 89: 667-9).
In one study, conducted at Stanford University in California, microwaving at higher than 72¡C was found to cause a considerable decrease in all the tested anti infective factors. The Stanford researchers strongly rejected the use of microwaving, even at low temperatures, of human milk in hospitals.Another study, carried out in Vienna, found that microwave cooking induced high rates of change in food proteins that were not observed after conventional cooking. D-proline and cis-D-hydroxyproline were found in significant quantities in microwave heated infant milk formulas, whereas only L-proline is normally found in biological material.
(L stands for laevo-rotary, D for dextro-rotary, referring to the direction electrons rotate in their plane of optical polarisation.)
Lubec and his colleagues warned that "the conversion of trans to cis forms could be hazardous because when cis-amino acids are incorporated into peptides and proteins instead of their trans isomers, this can lead to structural, functional, and immunological changes" (Lancet, 1989; 9: 1392-3).
Other research has also found that microwaving infant formula can produce molecular changes in the amino acids in milk proteins, causing toxicity or affecting the nutritional value of the milk formula. Nevertheless, the quantity of proteins changed was very small (J Am Coll Nutr, 1994; 13: 209-10).
Atb,
Leilanae
Microwave
-
Ginny Wilken
- Posts: 324
- Joined: Sat Jun 26, 2004 10:00 pm
Re: Microwave
Don't heat milk at all! Any milk! If one needs to reheat human breast milk, set it in warm water. Drink and demand raw milk!
ginny
--
Ginny Wilken
gwilken@fastmail.fm
ginny
--
Ginny Wilken
gwilken@fastmail.fm
-
Irene de Villiers
- Posts: 3237
- Joined: Sat Aug 02, 2014 10:00 pm
Re: Microwave
Dear Lailanae,
This is unscientific and anonymous nonsense opinion, not research. I dont know why anyone reads that stuff.
It is perfectly fine to heat milk in a microwave./ I do it multipletimes a day as I have my coffee in milk noit water.
Human milk is meant to be taken straight from the tap.
Anything else will degrade it in some way, depending on the handling.
Milk for babies is not meant to be cooked - by microwave or any other way.
If you cook it from frozen it will NOT cook evenly in a microwave (nor immersed in hot water).
or any other way
This is baloney. There is no such ting as a 20-53 degree microwave oven. This is the report form heating milk the conventional way - in fact ANY way.. Someone just threw it in. (The someone as usual is anonymous in these anti-microwaver "reports".)
I truly abhor such invented reports. The ACTUAL 1992 pediatrics report says this and is not human milk related even:
Pediatrics. 1992 Sep.
Microwave heating of infant formula: a dilemma resolved.
Sigman-Grant M1, Bush G, Anantheswaran R.
Abstract
Microwave heating of infant formula is a common practice despite concerns of infant scalding. Beyond the issue of physical safety, little is known about the effects on nutrient content of microwave heating of infant formula. Casein-predominant infant formula in 120- and 240-mL glass and plastic nursing bottles of varying colors were heated for 40 seconds and 60 seconds, respectively. Temperature profiling was monitored during the heatingcycle. Analysis of riboflavin and vitamin C was made prior to and after heating. Topmost portions reached a mean temperature of 44.7 +/- 1.7 degrees C and 43.0 +/- 2.4 degrees C for all types of 240-mL and 120-mL bottles, respectively. Topmost temperatures were significantly hotter than temperatures reached at other sites. Routine mixing resulted in formula temperatures which could safely be fed to infants (35.4 +/- 0.3 degrees C and 33.9 +/- 0.2 degrees C for 240-mL and 120-mL bottles, respectively). There was no significant loss of either riboflavin or vitamin C. Protocols for microwave heating are given.
There was also a 1990 study reported in Pediatrics that did mention human mik.
It explains how not to be stupid. Evidently some poeple have heated baby bottles, nipple and all. And then burned the baby with overheated boiling milk and meted rubber.
Baby bottles are not microwave cookware. Milk or formula needs to be heated in the right shape of microwave cookware, such as a small pyrex jug.
In 1984 already, Pediatrics came out with warnings about scalding babies with overheated milk.
If anyone is too stupid to make sure the baby's milk is not overheated, before stuffing it into the baby's delicate mouth, they shoud not have a baby.
Just my opinion, that.
I do recommend always reading the original research and not some hyped up anonymous reinvention of it.
In my case, if it is anonymous I do nto read it period.
I did not read much of the rest as it talks more nonsense. There is no such thing as a microwave that works at a specific temperature, such as "72 degrees" so it is not physically possible to "microwave at 72 degrees" as claimed.
Where you have a reference, I looked that up.
The actual research says:
J Am Coll Nutr. 1994 Apr;13(2):209-10.
D-aspartate and D-glutamate in microwaved versus conventionally heated milk.
Petrucelli L1, Fisher GH.
Abstract
OBJECTIVE:
It has been reported that microwave heating of infant formulae can isomerize and racemize amino acids in the milk proteins, causing toxicity or affecting the nutritional value of the milk formulae. Therefore, we investigated whether microwave heating vs conventional heating would produce any D- enantiomers of aspartic acid (Asp) and glutamic acid (Glu) in milk.
METHODS:
Whole and skim milk samples were heated for 10 minutes in either a microwave oven at medium power or on a hot water bath at 80 degrees C. D-Asp and D-Glu were determined by high performance liquid chromatography.
RESULTS:
Unheated (control) samples were found to contain 0.40-0.45% D-Asp and D-Glu, inherent from the original pasteurizing process. Both conventional heating and microwave heating induce < 0.25% more racemization when compared to the control samples.
CONCLUSION:
Within experimental error, there is no significant difference in the levels of these D-amino acids between the conventionally heated and microwave heated milks, thus having no significant effect on the nutritional value of the milk proteins.
This research is extremely faulty as they heated milk in a microwave at ten minutes and also in conventional way for that time. It woudl have been seriously overheated in a microwave for ten minutes and would not be a fair comparison.
Despite that, they found no difference, unlike what you claim.
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
This is unscientific and anonymous nonsense opinion, not research. I dont know why anyone reads that stuff.
It is perfectly fine to heat milk in a microwave./ I do it multipletimes a day as I have my coffee in milk noit water.
Human milk is meant to be taken straight from the tap.
Anything else will degrade it in some way, depending on the handling.
Milk for babies is not meant to be cooked - by microwave or any other way.
If you cook it from frozen it will NOT cook evenly in a microwave (nor immersed in hot water).
or any other way
This is baloney. There is no such ting as a 20-53 degree microwave oven. This is the report form heating milk the conventional way - in fact ANY way.. Someone just threw it in. (The someone as usual is anonymous in these anti-microwaver "reports".)
I truly abhor such invented reports. The ACTUAL 1992 pediatrics report says this and is not human milk related even:
Pediatrics. 1992 Sep.
Microwave heating of infant formula: a dilemma resolved.
Sigman-Grant M1, Bush G, Anantheswaran R.
Abstract
Microwave heating of infant formula is a common practice despite concerns of infant scalding. Beyond the issue of physical safety, little is known about the effects on nutrient content of microwave heating of infant formula. Casein-predominant infant formula in 120- and 240-mL glass and plastic nursing bottles of varying colors were heated for 40 seconds and 60 seconds, respectively. Temperature profiling was monitored during the heatingcycle. Analysis of riboflavin and vitamin C was made prior to and after heating. Topmost portions reached a mean temperature of 44.7 +/- 1.7 degrees C and 43.0 +/- 2.4 degrees C for all types of 240-mL and 120-mL bottles, respectively. Topmost temperatures were significantly hotter than temperatures reached at other sites. Routine mixing resulted in formula temperatures which could safely be fed to infants (35.4 +/- 0.3 degrees C and 33.9 +/- 0.2 degrees C for 240-mL and 120-mL bottles, respectively). There was no significant loss of either riboflavin or vitamin C. Protocols for microwave heating are given.
There was also a 1990 study reported in Pediatrics that did mention human mik.
It explains how not to be stupid. Evidently some poeple have heated baby bottles, nipple and all. And then burned the baby with overheated boiling milk and meted rubber.
Baby bottles are not microwave cookware. Milk or formula needs to be heated in the right shape of microwave cookware, such as a small pyrex jug.
In 1984 already, Pediatrics came out with warnings about scalding babies with overheated milk.
If anyone is too stupid to make sure the baby's milk is not overheated, before stuffing it into the baby's delicate mouth, they shoud not have a baby.
Just my opinion, that.
I do recommend always reading the original research and not some hyped up anonymous reinvention of it.
In my case, if it is anonymous I do nto read it period.
I did not read much of the rest as it talks more nonsense. There is no such thing as a microwave that works at a specific temperature, such as "72 degrees" so it is not physically possible to "microwave at 72 degrees" as claimed.
Where you have a reference, I looked that up.
The actual research says:
J Am Coll Nutr. 1994 Apr;13(2):209-10.
D-aspartate and D-glutamate in microwaved versus conventionally heated milk.
Petrucelli L1, Fisher GH.
Abstract
OBJECTIVE:
It has been reported that microwave heating of infant formulae can isomerize and racemize amino acids in the milk proteins, causing toxicity or affecting the nutritional value of the milk formulae. Therefore, we investigated whether microwave heating vs conventional heating would produce any D- enantiomers of aspartic acid (Asp) and glutamic acid (Glu) in milk.
METHODS:
Whole and skim milk samples were heated for 10 minutes in either a microwave oven at medium power or on a hot water bath at 80 degrees C. D-Asp and D-Glu were determined by high performance liquid chromatography.
RESULTS:
Unheated (control) samples were found to contain 0.40-0.45% D-Asp and D-Glu, inherent from the original pasteurizing process. Both conventional heating and microwave heating induce < 0.25% more racemization when compared to the control samples.
CONCLUSION:
Within experimental error, there is no significant difference in the levels of these D-amino acids between the conventionally heated and microwave heated milks, thus having no significant effect on the nutritional value of the milk proteins.
This research is extremely faulty as they heated milk in a microwave at ten minutes and also in conventional way for that time. It woudl have been seriously overheated in a microwave for ten minutes and would not be a fair comparison.
Despite that, they found no difference, unlike what you claim.
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
Re: Microwave
Very nice, Leilanae. It may shock some of you how quickly I will stop whining about evidence when good evidence is presented. Now I have to figure out how to get my family off of the microwave.
Roger Bird
________________________________
To: minutus@yahoogroups.com
From: minutus@yahoogroups.com
Date: Mon, 5 Jan 2015 14:58:22 -0800
Subject: [Minutus] Microwave
http://www.wddty.com/033638003689555448 ... -oven.html
Do not heat milk in a microwave oven
Heating or thawing human milk by microwave causes a decrease in the level of anti infective factors in the milk, even when low temperatures (20-53¡C) are used (Pediatrics, 1992; 89: 667-9).
In one study, conducted at Stanford University in California, microwaving at higher than 72¡C was found to cause a considerable decrease in all the tested anti infective factors. The Stanford researchers strongly rejected the use of microwaving, even at low temperatures, of human milk in hospitals.Another study, carried out in Vienna, found that microwave cooking induced high rates of change in food proteins that were not observed after conventional cooking. D-proline and cis-D-hydroxyproline were found in significant quantities in microwave heated infant milk formulas, whereas only L-proline is normally found in biological material.
(L stands for laevo-rotary, D for dextro-rotary, referring to the direction electrons rotate in their plane of optical polarisation.)
Lubec and his colleagues warned that "the conversion of trans to cis forms could be hazardous because when cis-amino acids are incorporated into peptides and proteins instead of their trans isomers, this can lead to structural, functional, and immunological changes" (Lancet, 1989; 9: 1392-3).
Other research has also found that microwaving infant formula can produce molecular changes in the amino acids in milk proteins, causing toxicity or affecting the nutritional value of the milk formula. Nevertheless, the quantity of proteins changed was very small (J Am Coll Nutr, 1994; 13: 209-10).
Atb,
Leilanae
Roger Bird
________________________________
To: minutus@yahoogroups.com
From: minutus@yahoogroups.com
Date: Mon, 5 Jan 2015 14:58:22 -0800
Subject: [Minutus] Microwave
http://www.wddty.com/033638003689555448 ... -oven.html
Do not heat milk in a microwave oven
Heating or thawing human milk by microwave causes a decrease in the level of anti infective factors in the milk, even when low temperatures (20-53¡C) are used (Pediatrics, 1992; 89: 667-9).
In one study, conducted at Stanford University in California, microwaving at higher than 72¡C was found to cause a considerable decrease in all the tested anti infective factors. The Stanford researchers strongly rejected the use of microwaving, even at low temperatures, of human milk in hospitals.Another study, carried out in Vienna, found that microwave cooking induced high rates of change in food proteins that were not observed after conventional cooking. D-proline and cis-D-hydroxyproline were found in significant quantities in microwave heated infant milk formulas, whereas only L-proline is normally found in biological material.
(L stands for laevo-rotary, D for dextro-rotary, referring to the direction electrons rotate in their plane of optical polarisation.)
Lubec and his colleagues warned that "the conversion of trans to cis forms could be hazardous because when cis-amino acids are incorporated into peptides and proteins instead of their trans isomers, this can lead to structural, functional, and immunological changes" (Lancet, 1989; 9: 1392-3).
Other research has also found that microwaving infant formula can produce molecular changes in the amino acids in milk proteins, causing toxicity or affecting the nutritional value of the milk formula. Nevertheless, the quantity of proteins changed was very small (J Am Coll Nutr, 1994; 13: 209-10).
Atb,
Leilanae
-
Irene de Villiers
- Posts: 3237
- Joined: Sat Aug 02, 2014 10:00 pm
Re: Microwave
But Roger it is not good evidence.
In fact the research has been totally changed and misreported wherever Leilanae found it. I posted the real research - which I looked up - and it says a totally different thing - that microwave versus conventional makes NO difference to nutrients.
Perhaps you missed it Roger?
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
In fact the research has been totally changed and misreported wherever Leilanae found it. I posted the real research - which I looked up - and it says a totally different thing - that microwave versus conventional makes NO difference to nutrients.
Perhaps you missed it Roger?
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
-
Sheri Nakken
- Posts: 3999
- Joined: Wed Apr 01, 2020 10:00 pm
Re: Microwave
http://www.cdc.gov/breastfeeding/recomm ... stmilk.htm
Avoid using a microwave oven to thaw or heat bottles of breast milk
* Microwave ovens do not heat liquids evenly. Uneven heating could easily scald a baby or damage the milk
* Bottles may explode if left in the microwave too long.
* Excess heat can destroy the nutrient quality of the expressed milk.
http://pediatrics.aappublications.org/c ... /667.short
Effects of Microwave Radiation on Anti-infective Factors in Human Milk
"In intensive care nurseries it has become common practice to use microwave thawing of frozen human milk for more rapid accessibility. Twenty-two freshly frozen human milk samples were tested for lysozyme activity, total IgA, and specific secretory IgA to Escherichia coli serotypes 01, 04, and 06. The samples were heated by microwave for 30 seconds at a low- or high-power setting and then reanalyzed. One-mL aliquots of 10 additional human milk samples were micro-waved at low (20°C to 25°C), medium (60°C to 70°C), and high ( 98°C) setting before the addition to each of 1 mL of diluted E coli suspension. E coli growth was determined after 3½ hours of incubation at 37°C. Microwaving at high temperatures (72°C to 98°C) caused a marked decrease in activity of all the tested anti-infective factors. E coli growth at 98°C was 18 times that of control human milk. Microwaving at low temperatures (20°C to 53°C) had no significant effect on total IgA, specific IgA to E coli serotypes 01 and 04, but did significantly decrease lysozyme and specific IgA to E coli serotype 06. Even at 20°C to 25°C, E coli growth was five times that of control human milk. Microwaving appears to be contraindicated at high temperatures, and questions regarding its safety exist even at low temperatures. "
http://kellymom.com/bf/pumpingmoms/milk ... lkstorage/ Breastfeeding experts
To warm milk
* Heat water in a cup or other small container, then place frozen milk in the water to warm; or
* Use a bottle warmer.
* NEVER microwave human milk or heat it directly on the stove.
http://onlinelibrary.wiley.com/doi/10.1 ... 5/abstract
Broccoli
Abstract
Total flavonoid and individual hydroxycinnamoyl derivative (sinapic and caffeoyl-quinic acid derivative) contents were evaluated in the edible portions of freshly harvested broccoli (cv Marathon inflorescences) before and after cooking and in the cooking water. High-pressure boiling, low-pressure boiling (conventional), steaming and microwaving were the four domestic cooking processes used in this work. The predominant sinapic acid derivatives were identified as 1,2,2 -trisinapoylgentiobiose and 1,2 -disinapoyl-2-feruloylgentiobiose. In addition 1,2-diferuloylgentiobiose and 1-sinapoyl-2,2 -diferuloylgentiobiose were also identified in broccoli inflorescences. The results showed large differences among the four treatments in their influence on flavonoid and hydroxycinnamoyl derivative contents in broccoli. Clear disadvantages were detected when broccoli was microwaved, namely high losses of flavonoids (97%), sinapic acid derivatives (74%) and caffeoyl-quinic acid derivatives (87%). Conventional boiling led to a significant loss of flavonoids (66%) from fresh raw broccoli, while high-pressure boiling caused considerable leaching (47%) of caffeoyl-quinic acid derivatives into the cooking water. On the other hand, steaming had minimal effects, in terms of loss, on both flavonoid and hydroxycinnamoyl derivative contents. Therefore we can conclude that a greater quantity of phenolic compounds will be provided by consumption of steamed broccoli as compared with broccoli prepared by other cooking processes. Copyright © 2003 Society of Chemical Industry
Sheri Nakken, former RN, MA, Hahnemannian Homeopath
http://homeopathycures.wordpress.com/ & http://vaccinationdangers.wordpress.com/
ONLINE/Email classes in Homeopathy; Vaccine Dangers; Childhood Diseases and Child Health
Next classes start in December
Avoid using a microwave oven to thaw or heat bottles of breast milk
* Microwave ovens do not heat liquids evenly. Uneven heating could easily scald a baby or damage the milk
* Bottles may explode if left in the microwave too long.
* Excess heat can destroy the nutrient quality of the expressed milk.
http://pediatrics.aappublications.org/c ... /667.short
Effects of Microwave Radiation on Anti-infective Factors in Human Milk
"In intensive care nurseries it has become common practice to use microwave thawing of frozen human milk for more rapid accessibility. Twenty-two freshly frozen human milk samples were tested for lysozyme activity, total IgA, and specific secretory IgA to Escherichia coli serotypes 01, 04, and 06. The samples were heated by microwave for 30 seconds at a low- or high-power setting and then reanalyzed. One-mL aliquots of 10 additional human milk samples were micro-waved at low (20°C to 25°C), medium (60°C to 70°C), and high ( 98°C) setting before the addition to each of 1 mL of diluted E coli suspension. E coli growth was determined after 3½ hours of incubation at 37°C. Microwaving at high temperatures (72°C to 98°C) caused a marked decrease in activity of all the tested anti-infective factors. E coli growth at 98°C was 18 times that of control human milk. Microwaving at low temperatures (20°C to 53°C) had no significant effect on total IgA, specific IgA to E coli serotypes 01 and 04, but did significantly decrease lysozyme and specific IgA to E coli serotype 06. Even at 20°C to 25°C, E coli growth was five times that of control human milk. Microwaving appears to be contraindicated at high temperatures, and questions regarding its safety exist even at low temperatures. "
http://kellymom.com/bf/pumpingmoms/milk ... lkstorage/ Breastfeeding experts
To warm milk
* Heat water in a cup or other small container, then place frozen milk in the water to warm; or
* Use a bottle warmer.
* NEVER microwave human milk or heat it directly on the stove.
http://onlinelibrary.wiley.com/doi/10.1 ... 5/abstract
Broccoli
Abstract
Total flavonoid and individual hydroxycinnamoyl derivative (sinapic and caffeoyl-quinic acid derivative) contents were evaluated in the edible portions of freshly harvested broccoli (cv Marathon inflorescences) before and after cooking and in the cooking water. High-pressure boiling, low-pressure boiling (conventional), steaming and microwaving were the four domestic cooking processes used in this work. The predominant sinapic acid derivatives were identified as 1,2,2 -trisinapoylgentiobiose and 1,2 -disinapoyl-2-feruloylgentiobiose. In addition 1,2-diferuloylgentiobiose and 1-sinapoyl-2,2 -diferuloylgentiobiose were also identified in broccoli inflorescences. The results showed large differences among the four treatments in their influence on flavonoid and hydroxycinnamoyl derivative contents in broccoli. Clear disadvantages were detected when broccoli was microwaved, namely high losses of flavonoids (97%), sinapic acid derivatives (74%) and caffeoyl-quinic acid derivatives (87%). Conventional boiling led to a significant loss of flavonoids (66%) from fresh raw broccoli, while high-pressure boiling caused considerable leaching (47%) of caffeoyl-quinic acid derivatives into the cooking water. On the other hand, steaming had minimal effects, in terms of loss, on both flavonoid and hydroxycinnamoyl derivative contents. Therefore we can conclude that a greater quantity of phenolic compounds will be provided by consumption of steamed broccoli as compared with broccoli prepared by other cooking processes. Copyright © 2003 Society of Chemical Industry
Sheri Nakken, former RN, MA, Hahnemannian Homeopath
http://homeopathycures.wordpress.com/ & http://vaccinationdangers.wordpress.com/
ONLINE/Email classes in Homeopathy; Vaccine Dangers; Childhood Diseases and Child Health
Next classes start in December
-
Irene de Villiers
- Posts: 3237
- Joined: Sat Aug 02, 2014 10:00 pm
Re: Microwave
Sheri,
Thanks for posting your referneces.
It seems to me they forgot to add that bottles also do not work well on hotplates or in furnaces
"Liquid heated in a microwave needs to be in an open jug shape microwave cookware container and stirred often during heating. Bottles are NOT microwave cookware." - that is what they shoud have said.
But why expect the govt to be useful.
Sorry Sheri, that does not make microwaves bad, just makes govt advice bad.
they forgot to add, "unless you use it correctly; see instruction above."
If you wish to be anti microwave, do it for the right reasons, namely that people are too foolish to figure out how to use it properly.
This 1988 research is superceded by the followup research in 1992 (which I posted in response to Leilnae's source which misquoted it) showing that other forms of cooking/heating do the SAME, it has to do with heat, not heat source.
This kind of "microwave" research is like saying that when I put my foot in the fire wearing green shoes, they melted and my foot got burned, and this means we should never wear green shoes
You left out the important part. The abstract does not explain these points:
* that broccoli was the exception and everything else tested retained nutrinets better than conventional cooking.
* that broccoli was cooked in water in the microwave leaching glucosinolates into the water to "lose" them.
* They recommend steam cooking to retain nutrients and not leach them into water.
Fact: It is incorrect to put vegetables in water to cook them in the microwave. That is for pot cooking.
Veg goes in microwave cooking bags (hard to find in USA) or microwave cookware, wet from being washed or waved under the tap, but NOT in water. The microwave cookig IS a steam cooking method this way.
QUOTE here of the more relevant bit of this research:
For instance, domesticcooking of vegetables involves the loss of pheno-lic compounds, as reported for onions, where theflavonoid content was reduced by 25%. In other stud-ies, when potatoes were baked, a complete loss ofchlorogenic acid resulted, while 55% remained aftermicrowave cooking and 40% after boiling. Other authors have demonstrated that boiling extracted 48%of the total flavonoids of fresh spinach, which wererecovered in the cooking water, while the remaining52% were found in the cooked spinach. Also, duringdomestic cooking of tomato, microwaving resulted in adecrease in quercetin content (65% loss), and an evenhigher reduction occurred (82% loss) during boiling. Thus domestic cooking considerably affects the pheno-lic compound contents in vegetables, and their antiox-idant activity might also be dramatically reduced.Previous studies have demonstrated that domesticprocedures (cooking, storage, etc) play an importantrole in final food quality. Thus boiling or microwaving extracts health-promoting compounds such asflavonoids, glucosinolates, etc, into the cooking water, decreasing their beneficial effects in the cooked vegetable. Consequently, procedures such as steaming are more effective for certain health-promoting compounds, such as glucosinolate.
Bottom line:
Properly used microwave cooking preserves nutrients better than any other system. It is worth learning to do well.
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
Thanks for posting your referneces.
It seems to me they forgot to add that bottles also do not work well on hotplates or in furnaces
"Liquid heated in a microwave needs to be in an open jug shape microwave cookware container and stirred often during heating. Bottles are NOT microwave cookware." - that is what they shoud have said.
But why expect the govt to be useful.
Sorry Sheri, that does not make microwaves bad, just makes govt advice bad.
they forgot to add, "unless you use it correctly; see instruction above."
If you wish to be anti microwave, do it for the right reasons, namely that people are too foolish to figure out how to use it properly.
This 1988 research is superceded by the followup research in 1992 (which I posted in response to Leilnae's source which misquoted it) showing that other forms of cooking/heating do the SAME, it has to do with heat, not heat source.
This kind of "microwave" research is like saying that when I put my foot in the fire wearing green shoes, they melted and my foot got burned, and this means we should never wear green shoes
You left out the important part. The abstract does not explain these points:
* that broccoli was the exception and everything else tested retained nutrinets better than conventional cooking.
* that broccoli was cooked in water in the microwave leaching glucosinolates into the water to "lose" them.
* They recommend steam cooking to retain nutrients and not leach them into water.
Fact: It is incorrect to put vegetables in water to cook them in the microwave. That is for pot cooking.
Veg goes in microwave cooking bags (hard to find in USA) or microwave cookware, wet from being washed or waved under the tap, but NOT in water. The microwave cookig IS a steam cooking method this way.
QUOTE here of the more relevant bit of this research:
For instance, domesticcooking of vegetables involves the loss of pheno-lic compounds, as reported for onions, where theflavonoid content was reduced by 25%. In other stud-ies, when potatoes were baked, a complete loss ofchlorogenic acid resulted, while 55% remained aftermicrowave cooking and 40% after boiling. Other authors have demonstrated that boiling extracted 48%of the total flavonoids of fresh spinach, which wererecovered in the cooking water, while the remaining52% were found in the cooked spinach. Also, duringdomestic cooking of tomato, microwaving resulted in adecrease in quercetin content (65% loss), and an evenhigher reduction occurred (82% loss) during boiling. Thus domestic cooking considerably affects the pheno-lic compound contents in vegetables, and their antiox-idant activity might also be dramatically reduced.Previous studies have demonstrated that domesticprocedures (cooking, storage, etc) play an importantrole in final food quality. Thus boiling or microwaving extracts health-promoting compounds such asflavonoids, glucosinolates, etc, into the cooking water, decreasing their beneficial effects in the cooked vegetable. Consequently, procedures such as steaming are more effective for certain health-promoting compounds, such as glucosinolate.
Bottom line:
Properly used microwave cooking preserves nutrients better than any other system. It is worth learning to do well.
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
-
Sheri Nakken
- Posts: 3999
- Joined: Wed Apr 01, 2020 10:00 pm
Re: Microwave
fine Irene you use your microwave and keep your remedies under it or over it........................
Hope that works out for you
Never needed a microwave - never use a microwave............
Not willing to risk that my food will be depleted of nutritional value in any way......................I pay too much for non-gmo, organic food, to not prepare and cook it safely.
I knew you would defend them (yourself) to your dying breath.
Sheri
At 05:30 PM 1/6/2015, you wrote:
Sheri Nakken, former RN, MA, Hahnemannian Homeopath
http://homeopathycures.wordpress.com/ & http://vaccinationdangers.wordpress.com/
ONLINE/Email classes in Homeopathy; Vaccine Dangers; Childhood Diseases and Child Health
Next classes start in December
Hope that works out for you
Never needed a microwave - never use a microwave............
Not willing to risk that my food will be depleted of nutritional value in any way......................I pay too much for non-gmo, organic food, to not prepare and cook it safely.
I knew you would defend them (yourself) to your dying breath.
Sheri
At 05:30 PM 1/6/2015, you wrote:
Sheri Nakken, former RN, MA, Hahnemannian Homeopath
http://homeopathycures.wordpress.com/ & http://vaccinationdangers.wordpress.com/
ONLINE/Email classes in Homeopathy; Vaccine Dangers; Childhood Diseases and Child Health
Next classes start in December
Re: Microwave
Hi Irene,
"This is unscientific and anonymous nonsense opin=
ion, not research. I dont know why anyone reads that stuff".
The above reminds me of one of my favorite "take what you want and leave the rest" engineer jokes.
"Two engineering students were biking across a university campus when
one said, "Where did you get such a great bike?" The second engineer replied,
"Well, I was walking along yesterday, minding my own business, when a beautiful woman rode up on this bike, threw it to the ground, took off all her clothes and said, "Take what you want." The first engineer nodded approvingly and said, "Good choice: The clothes probably wouldn't have fit you anyway."
Atb,
Leilanae
"This is unscientific and anonymous nonsense opin=
ion, not research. I dont know why anyone reads that stuff".
The above reminds me of one of my favorite "take what you want and leave the rest" engineer jokes.
"Two engineering students were biking across a university campus when
one said, "Where did you get such a great bike?" The second engineer replied,
"Well, I was walking along yesterday, minding my own business, when a beautiful woman rode up on this bike, threw it to the ground, took off all her clothes and said, "Take what you want." The first engineer nodded approvingly and said, "Good choice: The clothes probably wouldn't have fit you anyway."
Atb,
Leilanae
Re: Microwave
Dear Irene,
Could you repost it since I deleted a lot of emails today since I have a lot of things to do that are not on the computer/Internet, and something had to give.
You did say elsewhere that you microwave milk all of the time as if that were some kind of valid data point. I am sure that you want to rethink that.
Sincerely,
Roger Bird
________________________________
To: minutus@yahoogroups.com
From: minutus@yahoogroups.com
Date: Tue, 6 Jan 2015 03:02:58 -0800
Subject: Re: [Minutus] Microwave
But Roger it is not good evidence.
In fact the research has been totally changed and misreported wherever Leilanae found it. I posted the real research - which I looked up - and it says a totally different thing - that microwave versus conventional makes NO difference to nutrients.
Perhaps you missed it Roger?
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."
Could you repost it since I deleted a lot of emails today since I have a lot of things to do that are not on the computer/Internet, and something had to give.
You did say elsewhere that you microwave milk all of the time as if that were some kind of valid data point. I am sure that you want to rethink that.
Sincerely,
Roger Bird
________________________________
To: minutus@yahoogroups.com
From: minutus@yahoogroups.com
Date: Tue, 6 Jan 2015 03:02:58 -0800
Subject: Re: [Minutus] Microwave
But Roger it is not good evidence.
In fact the research has been totally changed and misreported wherever Leilanae found it. I posted the real research - which I looked up - and it says a totally different thing - that microwave versus conventional makes NO difference to nutrients.
Perhaps you missed it Roger?
Namaste,
Irene
--
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."