X-Message-Number: 24425
Date: Fri, 23 Jul 2004 20:25:26 -0700 (PDT)
From: Doug Skrecky <>
Subject: 144'th update on fly longevity experiments

    This is the 144'th update of my fly longevity experiments. Average
temperature was 24.8 C during this run. Estimated maximal longevity using
the formula (363 - T*11.2) is 85 days.
    In this run I take a look at some solutes which may have some
antibacterial action, and compare them to table sugar. All underperformed
sucrose, but maltitol came close.
    Note: I attribute the poor early performance of low dose
1,3-propanediol, to possible contamination with traces of bleach. For a
further discussion of a possible source of this contamination, please
refer to Run #143.

Run #144                         Percent Survival on Day
supplement                  13  18 27 33 38 43 48 60 69 75 81 86
________________________________________________________________
control one                 86  79 57 36 18 14  7  0  -  -  -  -
control two                 86  80 69 40 34 23 14  3  0  -  -  -
maltitol 1/2 tsp            97  92 81 69 58 44 36 19  3  0  -  -
maltitol 1 tsp              86  86 72 62 48 41 28 17 10  3  0  -
maltitol 2 tsp             100 100 90 74 63 58 42 37  0  -  -  -
maltitol 3 tsp              96  96 85 78 44 30 30 11  4  4  0  -
PEG200 1/8 tsp             100  86 68 50 32 18 14  0  -  -  -  -
PEG200 1/2 tsp              62  42 19  8  0  -  -  -  -  -  -  -
1,3-propanediol 1/8 tsp     50  32 29 21 15 12  9  3  0  -  -  -
1,3-propanediol 1/2 tsp     85  82 67 52 39 33 21  9  0  -  -  -
sucrose 2 tsp               97  97 97 93 77 67 50 23 17  7  3  0
triethylene glycol 1/8 tsp  92  89 73 50 35 19 12  0  -  -  -  -
triethylene glycol 1/2 tsp  91  78 44 26 22  9  4  0  -  -  -  -

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