The BK01A, BK01A-B, BK01A-S, and BK01A-BS Biology Kits contain all of the items listed below, except as noted. The BK01A-RK Biology Refill Kit contains chemicals only.
* BK01 kits originally included a 10-pack of pre-sterilized polystyrene (plastic) Petri dishes. Later BK01 kits substituted a 3-pack of glass Petri dishes for the plastic Petri dishes. Because of breakage problems (both during shipping and during use) current BK01A kits include a 6-pack of 50mm polypropylene (PP) Petri dishes. The PP dishes can be re-used indefinitely simply by washing them and sterilizing them in a pressure cooker (15 minutes at 15 PSI) after filling them with agar gel. Also, because they are smaller diameter (50mm versus 75mm), the PP Petri dishes use expensive agar more efficiently. A 25 mL batch of agar medium is sufficient to fill the six Petri dishes to the proper level.
1 included only in kits shipped to Hawaii (to substitute for the Rhizobia culture) 2 the book lists the BK01 kit as including amoxicillin capsules. Current BK01A kits substitute a vial of penicillin G potassium for the amoxicillin. You can substitute one heaping loose spatula spoon of penicillin G potassium powder for one 250 mg amoxicillin capsule. 3 with the exceptions of these items, the consumables in the kits should remain usable for at least two years if unopened or if carefully resealed after opening, and if stored in a cool, dark place. The Rhizobia culture, the lima bean seeds, and the yeast should remain usable for at least one year unopened. If you intend to reuse the kit for another student within two to three years, you can purchase replacements for the Rhizobia culture and the seeds at most lawn and garden stores (make sure the Rhizobia culture you purchase is compatible with lima beans), and yeast at any supermarket. Although we cannot guarantee shelf live for the BC03 Bacteria Culture because shipping and local storage conditions are beyond our control, if unopened and stored at room temperature in the dark, the BC03 culture should remain usable for at least one year and possibly several years. Do not refrigerate this culture. If you open the culture using aseptic procedures, you can recap and reseal it without significantly affecting the shelf life of the remainder. 4 not included in kits shipped to Hawaii (State regulations prohibit us from shipping Rhizobia cultures to Hawaii).