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.
Breads and Grains. 1  Store-bought bagels: 1 to 2 weeks (refrigerator) or 2 months (freezer). 2  Commercial breads: 1 to 2 weeks (refrigerator) or 3 months (freezer). 3  Unopened flavored rice: 6 months (pantry). Opened jar of natural peanut butter: 4 to 6 months (refrigerator) or 2-3 months (freezer). 2  Opened jar of pasta sauce: 4 days (refrigerator). 3  Unopened coffee jar: 2 years (pantry). 4  Olives: 2 weeks (refrigerator); donât freeze.