New Zealand Journal of Forestry Science

Table 2 Published data on the yield of various types of extracts from Sequoia sempervirens heartwood

From: The chemistry and bioactivity of various heartwood extracts from redwood (Sequoia sempervirens) against two species of fungi

Solvent	Extractive content (%)	Reference
Hot water extract	10.5	Hawley et al. [1924]
	5.5-28.2	Sherrard and Kurth [1933b]
	8–10	Resch and Arganbright [1968]
	3.9-12.7	Wilcox and Piirto [1976]
	12.3-26.3	Kuo and Arganbright [1980]
	9.9	Hillis [1987]
Cold water extract	14.4	Hawley et al. [1924]
	10.5-18.3	Anderson et al. [1960]
	5.8-16.2	Anderson et al. [1962]
	7-16	Demaree and Erickson [1975]
Ethanol	3.1-5	Cabrera [2008]
Hot ethanol (after hot water)	1.4-8.1	Wilcox and Piirto [1976]
	1–2	Resch and Arganbright [1968]
	3.0-6.9	Kuo and Arganbright [1980]
Hot ethanol (after cold water)	7.2-12.7	Anderson et al. [1960]
Hot ethanol (after cold water)	7.8-14.9	Anderson et al. [1962]
Ether	1.1	Hillis [1987]
0.5% NaOH	20	Hillis [1987]
Acetone	13.5	Buchanan et al. [1944]
Acetone	Approx. 3.2	Anderson et al. [1962]
Hexane	0.1-0.3	Cabrera [2008]
Dichloromethane	1.8-2.0	Cabrera [2008]

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