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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Yields and growth inhibitory activities of successive extracts obtained from sugi bark

From: Inhibition of the harmful alga Microcystis aeruginosa by sugi (Cryptomeria japonica) bark

 

Extraction solvent

Yielda (%)

Inhibitory activityb (% ± SE)

Inner bark

Hexane

12.1

23.2 ± 1.09

Ethyl acetate

5.48

62.5 ± 1.08

Methanol

12.4

63.2 ± 0.459

Outer bark

Hexane

5.47

48.2 ± 0.790

Ethyl acetate

1.61

38.1 ± 1.69

Methanol

1.21

41.5 ± 1.85

Whole bark

Hexane

8.42

27.6 ± 1.30

Ethyl acetate

3.14

51.7 ± 0.498

Methanol

5.75

50.7 ± 1.07

  1. SE standard error
  2. aYield shows percentage of each extract based on dry weight of bark material
  3. bBioassay of each extract were conducted at 5 mg/mL of concentration. Inhibitory activities (IA) were calculated by following equations. IA = 100 × (1-cell density in each sample test/cell density in control test)
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