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Effect of Boiling on Chicken and Beef

Effect of Boiling on Chicken and Beef
By Journal of Renal Nutrition ,A . Cupisti , F . Comar , O . Benini , S . Lupetti , C . DAlessandro , G . Barsotti , D . Gianfaldoni, Volume 16 , Issue posted 2008-11-21

John Scott's Nitro - Effect of Boiling on Chicken and Beef


Objective Dietary phosphate restriction is one of the means of phosphatemia control in dialysis patients. To limit dietary phosphate intake, appropriate food choices are recommended, but this often creates a conflict with the high-normal protein requirement of dialysis patients. Although food processing by boiling may be a safe tool for eliminating many minerals, this method poses a risk for loss of important nutrients, including proteins. The goal of this study was to assess the effect of boiling on phosphate and protein nitrogen changes in commonly used foods that contain proteins of high biological value.

Methods We evaluated the true retention values of dry matter, crude protein, and total phosphorus in fresh beef and chicken breast before and after 10, 20, and 30 minutes of boiling; the reported values represent the average of five determinations.

Results Compared with crude raw samples, dry matter retention in cooked beef was reduced up to 92% 6%, crude protein retention was reduced up to 87% 10%, and phosphorous retention was reduced up to 42% 13%; similar data were obtained when boiling the chicken breast, 93% 3%, 81% 4%, and 63% 6%, respectively.

Conclusions Our results show that consuming boiled foods can significantly reduce dietary phosphate while preserving protein intake, namely reducing the effective phosphate intake per gram of dietary protein. This can represent additional advice to the patient for limiting the dietary phosphorus load at the same protein intake, leading to a better control of phosphate balance together with a lower risk of protein malnutrition.

JSNITRO NOTE:Boiling chicken dehydrates the chicken causing most of the loss of mass. It also leaches out some of the fat into the water causing the fat content to drop too. The protein content stays pretty much intact except for a slight loss of usable protein. The reduction is digestible protein is due to the protein cross-linking, which is caused by cooking it. Therefore, the best source of pure, usable protein is still XP.

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