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EvelynS
Mon, Feb-07-05, 09:43
1: J Agric Food Chem. 2004 Dec 15;52(25):7561-6. Related Articles, Links
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Addition of various carbohydrates to beef burgers affects the formation of heterocyclic amines during frying.

Persson E, Sjoholm I, Nyman M, Skog K.
Applied Nutrition and Food Chemistry and Food Engineering, Department of Food Technology, Engineering and Nutrition, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.

The influence of the addition of carbohydrates with different physicochemical properties on weight loss and formation of heterocyclic amines (HAs) during the frying of beef burgers was examined. Furthermore, the capability of carbohydrates to bind HAs was tested.

Beef burgers containing 1.5% NaCl and 0.3% tripolyphosphate (reference), with the addition of 1.5% carbohydrate, were fried for 5 min at 200 degrees C in a double-sided pan fryer. The beef burgers were analyzed for HAs with solid phase extraction and liquid chromatography/mass spectrometry. 2-Amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx), 2-amino-3,4,8-trimethylimidazo[4,5-f]quinoxaline (4,8-DiMeIQx), 2-amino-1-methyl-6-phenyl-imidazo[4,5-b]pyridine (PhIP), and 9H-pyrido[3,4-b]indole (Norharman) were detected in all of the beef burgers.

The addition of carbohydrates affected both the weight loss and the formation of HAs during cooking. The formation of HAs could be correlated to depend on both the weight loss and the type of the added carbohydrate. Of the 11 different carbohydrates tested, raw potato starch was most capable of inhibiting the formation of HAs, while potato fiber gave the lowest weight loss and a comparably low amount of PhIP. Wheat bran and potato fiber were found to reversibly bind HAs.

It is concluded that adding small amounts of certain carbohydrates may be a simple and effective way of reducing the amount of HAs and can easily be applied in households and commercial preparations of beef burgers.

PMID: 15675804 [PubMed - in process]

Unfortunately, I can't get at the full text to see how much difference these fibres made. 1 Tbsp wheat bran = 0.8 net carbs

Dodger
Mon, Feb-07-05, 09:55
200 C is a fairly high temperature. The higher the temperature, the more HAs are produced.

I found an article that says that microwaving meat prior to frying reduced the HAs by 90%. http://cis.nci.nih.gov/fact/3_25.htm

Nancy LC
Mon, Feb-07-05, 10:17
I remember awhile back that they were telling people to add stuff with anti-oxidants to meat and that cut way down on the carcinogens when you grill meat. They did things like put blueberries in burgers and marinate meat in citrus juices.