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Effect of drying on yield and calorific values of extractables from leafy spurge (Euphorbia esula)

Material type: TextSeries: ; Biotechnology and BioEngineering, 26(4), p.335-339, 1984Contained works:
  • Wiatr, Stanley M
Subject(s): Online resources: Abstract: The effect of dehydration on yield and calorific values has been investigated for oils, hydrocarbons, and polyphenols extracted from leaves of Euphorbia esula (leafy spurge). Methods of dehydration employed were with a warm oven (50 degree C), a hot oven (105 degree C), at room temperature (25 degree C), and with freeze drying. Generally, dehydration resulted in a loss of yield for all extractives. Noteworthy exceptions were oil yields from the warm-oven- or air-dried biomass, which did not differ significantly from fresh tissue. Significant differences in calorific values (range 4643-5192 cal/g)were observed for each category of whole leafy biomass dehydrated as indicated above.
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The effect of dehydration on yield and calorific values has been investigated for oils, hydrocarbons, and polyphenols extracted from leaves of Euphorbia esula (leafy spurge). Methods of dehydration employed were with a warm oven (50 degree C), a hot oven (105 degree C), at room temperature (25 degree C), and with freeze drying. Generally, dehydration resulted in a loss of yield for all extractives. Noteworthy exceptions were oil yields from the warm-oven- or air-dried biomass, which did not differ significantly from fresh tissue. Significant differences in calorific values (range 4643-5192 cal/g)were observed for each category of whole leafy biomass dehydrated as indicated above.

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