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Table 3 The weight and character of the seven different active fractions following silica gel quick column chromatography of the DCM extract of bee corn pollen (CDEb)

From: Chemical constituents and free radical scavenging activity of corn pollen collected from Apis mellifera hives compared to floral corn pollen at Nan, Thailand

Fraction Weight (mg) Yielda
(CDEb)
Yieldb
(Bee pollen)
Character Activityc
CDEb1 62 2.58 0.01 Clear white solid --
CDEb2 42 1.75 0.01 Pale yellow solid --
CDEb3 6 0.25 0.00 Pale brown solid --
CDEb4 5 0.21 0.00 Pale brown solid +
CDEb5 776 32.3 0.18 Dark brown solid +++
CDEb6 430 17.9 0.10 Sticky, dark brown solid +++
CDEb7 760 31.7 0.18 Dark brown solid ++
  1. a,bYield as a % of the aCDEb fraction and bof the initial bee pollen mass
  2. cQualitative free radical scavenging activity, as determined by the DPPH assay sprayed onto the TLC plates, where -, +, ++ and +++ represent no, weak, moderate and strong color change (activity).