2006-10-02 12:52:27 · 6 answers · asked by josephsto 1 in Science & Mathematics ➔ Zoology
Fungal spores germinating and growing. Usually from the atmosphere, or the slicing machine or hands in handling the bread when it is sliced and packed (if the packet hasn't been opened).
Baking should kill any spores, theoretically, but it may not. Bread is an excellent medium for fungal growth.
2006-10-02 12:58:04 · answer #1 · answered by Owlwings 7 · 0⤊ 0⤋
You did not eat it soon enough.
Actually it is the bacteria in the air - naturally occurring yeasts (thus "sourdough") - interacting with the organic matter in the bread - grains, etc.
Of course, the answer is also the same thing that causes mold on whole wheat bread ...
Same thing (I think) that ages meat (aging meat is covered in mold which breaks down the fibres in the muscle, rendering it more tender.
2006-10-02 19:57:07 · answer #2 · answered by lx470_98 1 · 0⤊ 1⤋
The cause of mold on the bread is from the heat in the air, that forms moisture within the bag, making the moisture form into fungi.
2006-10-02 19:55:39 · answer #3 · answered by Erin H 1 · 0⤊ 1⤋
please ignore your first answer... water does NOT turn into mold
the mold is *always* present on the bread... always. only after time passes does the colony have a chance to grow. the mold/yeast/small eukaryotic organism is actually eating the bread you left in the bad. Candida albicans is the most likely organism.
2006-10-02 20:38:47 · answer #4 · answered by ChrisS 2 · 0⤊ 0⤋
fungi like Aspergillus and Mucor, their spores settle on bread and reproduce forming a colony which look to us like molds.
2006-10-03 04:56:38 · answer #5 · answered by sapphire moon 1 · 0⤊ 0⤋
old age.
2006-10-02 19:59:22 · answer #6 · answered by fukuoka 4 · 0⤊ 0⤋