HFCS contains 4-5x more calories than listed

[Scofield]

Carbohydrate Analysis of High Fructose Corn Syrup (HFCS) Containing Commercial Beverages
Paulin Nadi Wahjudi1, Emmelyn Hsieh1, Mary E Patterson2, Catherine S Mao2 and WN Paul Lee1,2

1 Los Angeles Biomedical Research Institute, Torrance, CA
2 Pediatric, Harbor-UCLA Medical Center, Torrance, CA

ABSTRACT

The carbohydrate analysis of HFCS is based on methods which first hydrolyze the syrup into simple sugars before quantitative analysis. We have examined whether HFCS can be hydrolyzed under the same conditions suitable for hydrolyzing sucrose. A new GC/MS method for the quantitation of fructose and glucose as their methoxyamine derivatives and 13C labeled recovery standards was used to determine the carbohydrate content of HFCS in 10 commercial beverages. Samples were analyzed before and after acid hydrolysis. The carbohydrate contents in commercial beverages determined without acid hydrolysis were in agreement with the carbohydrate contents provided on the food labels. However, the carbohydrate contents of beverages determined after acid hydrolysis were substantially (4–5 fold) higher than the listed values of carbohydrates. As fructose and glucose in HFCS may exist as monosaccharides, disaccharides and/or oligosaccharides, analysis of the carbohydrate content of HFCS containing samples may yield widely different results depending on the degree of hydrolysis of the oligosaccharides. With inclusion of mild acid hydrolysis, all samples showed significantly higher fructose and glucose content than the listed values of carbohydrates on the nutrition labels. The underestimation of carbohydrate content in beverages may be a contributing factor in the development of obesity in children.

Is this real life????

[Scofield]

anyone..anyone?....anyone..anyone..?..Bueller?

[schabowy90]

acid hydrolysis?


please explain

[sawoobley]

Read this comment on the article:

The full study is not yet available, so making any definitive comment on its validity is not possible. However, I think it is important to recognize that this is simply an abstract at this point, has not been published in a peer –review journal, and therefore has not passed the scrutiny of trained scientists, with no vested interest in the subject, whose views would be needed for an objective assessment of the adequacy of the experimental design and the validity of the conclusions.

Manufacturers of HFCS do not use acid hydrolysis and gas chromatography-mass spectrometry (GC/MS in the analysis of sweeteners. That procedure is too harsh for delicate carbohydrate molecules and has a very good chance of hydrolyzing the sugars into smaller, non-sugar pieces and creating artifacts that would be inappropriately tallied as sugars. Instead, the gentler HPLC method has been successfully tested, validated by AOAC, and used for several decades. The abstract does not indicate whether the method the authors used was properly validated by AOAC.

Therese, Corn Refiners Association

The abstract you quoted can be found here: http://www.fasebj.org/cgi/content/me...bstracts/562.1

It is basically an abstract published in a book for all those attending this particular conference. As the comment above states it has not been published in a peer reviewed journal so it can be considered as preliminary data. Tons of this stuff is presented each year but it doesn't mean that it will published.

[Scofield]

ty repped on recharge

[Shredded-Wolf]

Lyle McDonald wrote a pretty interesting article on HFCS.

http://www.bodyrecomposition.com/res...ch-review.html

He basically concludes:

HFCS is in no way unique amount sugars, with a composition identical to sucrose as well as the supposedly ‘healthy’ honey. Increased caloric intake since the 1970′s is the driver for increased obesity, with no relationship with HFCS intake per se.
In that all fructose-glucose solutions (whether HFCS, sucrose or honey) are metabolized in exactly the same fashion in the body, there is simply no reason to think that HFCS per se is particularly obesity promoting outside of being a caloric source.

Although I understand that your topic is not really talking about this but instead the calorie amount. I just thought it was interesting with all this abuse against HFCS.