Specificity of the ricin A chain-ribosome interaction was demonstrated by competition experiments using either ricin A chain or gelonin, another ribosome-inactivating protein having the identical mechanism of ribosome inactivation (26) in a broad spectrum of species including rat and rabbit (12, 26).
Report Abuse. I would say that bread stays fresh in the fridge for about a week. If you are unable to eat alot of bread at one time,then it is best to store your bread in the freezer,because the freezer keeps your bread for a longer period of time than the fridge does! ;-). Source(s): Nurse and Mother. Winnie Â· 8 years ago.
Bread - How long does bread last? Since preservatives play a large part in the answer to how long bread lasts, the answer ranges from a few days to several weeks or more. The shelf life of bread depends on a variety of factors, such as the best by date, the preparation method and how it was stored. Bread is made of flour, water and yeast.