feather (Photo credit: n0rthw1nd)

While this is a natural amino acid, you might be shocked to find out that it is produced through processing human hair and duck feathers. You’ll find it in some bread products.

Hair and feathers are made of protein, They would go through pretty harsh digestive conditions to release the amino acids.

If you read the ingredients label on a loaf of bread, you will usually find an ingredient listed there as L-cysteine. This is a non-essential amino acid added to many baked goods as a dough conditioner in order to speed industrial processing. It’s usually not added directly to flour intended for home use, but you’ll find it throughout commercial breads such as pizza dough, bread rolls and pastries.
L-Cysteine does occur naturally and you will get it from meat products however when it is used as an additive it comes from hair and feathers( its cheap as poultry farmers sell the feathers that are plucked when they use the chicken for meat, and the hair is usually gathered from the floors of barbershops in producing countries like China,Japan and Taiwan as they are the common exporters of food additives).
I  normally compile a top 10 list of where you would find it, but it is used in almost ALL commercial breads and doughs, so any item that contains bread or dough would have this.. I will take my pizza in brunette please. EWWWW



2 responses to “L-Cysteine

  1. Ugh. I remember reading about this awhile back. It’s a good thing I don’t eat commercially prepared bread products!

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