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.
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. Because of its relatively low cost and high calorie density, bread is one of the most popular food staples in the world.