As far as the specific example of blended fruit, I seem to be on solid ground.[0][1] However, starches do change properties depending on form, which is probably similar to what you were getting at with fructose absorption.[2] I was mostly complaining about claims that micronutrients lose bioavailibility when not provided in their "natural" form.

[0] https://www.quora.com/Does-blending-reduce-the-nutritional-c...

[1] http://www.livestrong.com/article/548978-does-fruit-lose-its...

[2] https://www.ncbi.nlm.nih.gov/pubmed/3046297