Abstract
Sesame seeds were roasted at different temperatures (180–220 °C) using a domestic electric oven. Molecular species and fatty acid distributions of triacylglycerols (TAGs) isolated from total lipids in the sesame seeds were analysed by a combination of argentation thin-layer chromatography (TLC) and gas–liquid chromatography. A modified argentation TLC procedure, developed to optimise the separation of the complex mixture of total TAGs, provided 11 different groups of TAGs, based on both the degree of unsaturation and the total length of fatty acid groups. Fatty acid methyl ester analysis was performed to determine the composition of each zone. Eleven molecular species of TAGs were still detected in the sesame seeds following roasting treatment. Dilinoleolein (33.7–35.8%), palmitoleolinolein (20.3–22.8%), dioleolinolein (15.0–15.4%) and trilinolein (8.8–10.7%) were the main components during roasting. However, roasting for 10 min at 220 °C caused a significant decrease (P < 0.05) not only in molecular species containing more than four double bonds, but also in the amount of diene and triene species present in TAGs (with a few exceptions). These results suggest that no significant changes in molecular species or fatty acid distribution of TAGs would occur within 25 min of roasting at 180 °C, ensuring that a good-quality product would be attained. © 2000 Society of Chemical Industry
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Claims 9
Claim · model-written summary
Modified chromatography resolved eleven triacylglycerol groups.
- Taxon
- sesame seeds
Sesamum indicumt0 - Outcome
- groups of TAGse0
- Value
- 11 different groups of TAGse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“A modified argentation TLC procedure, developed to optimise the separation of the complex mixture of total TAGs, provided 11 different groups of TAGs”
Claim · model-written summary
Eleven triacylglycerol species remained detectable after roasting.
- Taxon
- sesame seedsSesamum indicumt0
- Treatment
- roasting treatmente0
- Outcome
- molecular species of TAGse0
- Value
- Eleven molecular speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“Eleven molecular species of TAGs were still detected in the sesame seeds following roasting treatment.”
Claim · model-written summary
Dilinoleolein accounted for 33.7–35.8% during roasting.
- Taxon
- sesame seedsSesamum indicumt0
- Outcome
- Dilinoleoleine0
- Value
- 33.7–35.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“Dilinoleolein (33.7–35.8%)”
Claim · model-written summary
Palmitoleolinolein accounted for 20.3–22.8% during roasting.
- Taxon
- sesame seedsSesamum indicumt0
- Outcome
- palmitoleolinoleine0
- Value
- 20.3–22.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“palmitoleolinolein (20.3–22.8%)”
Claim · model-written summary
Dioleolinolein accounted for 15.0–15.4% during roasting.
- Taxon
- sesame seedsSesamum indicumt0
- Outcome
- dioleolinoleine0
- Value
- 15.0–15.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“dioleolinolein (15.0–15.4%)”
Claim · model-written summary
Trilinolein accounted for 8.8–10.7% during roasting.
- Taxon
- sesame seedsSesamum indicumt0
- Outcome
- trilinoleine0
- Value
- 8.8–10.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“trilinolein (8.8–10.7%)”
Claim · model-written summary
Roasting for ten minutes at 220 °C significantly decreased species with more than four double bonds.
- Taxon
- sesame seedsSesamum indicumt0
- Treatment
- roasting for 10 min at 220 °Ce0
- Outcome
- molecular species containing more than four double bondse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“roasting for 10 min at 220 °C caused a significant decrease (P < 0.05) not only in molecular species containing more than four double bonds”
Claim · model-written summary
Roasting for ten minutes at 220 °C significantly decreased diene and triene species, with exceptions.
- Taxon
- sesame seedsSesamum indicumt0
- Treatment
- roasting for 10 min at 220 °Ce0
- Outcome
- amount of diene and triene species present in TAGse0
- Direction
- decreasee0
- Qualifier
- with a few exceptionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“roasting for 10 min at 220 °C caused a significant decrease (P < 0.05) not only in molecular species containing more than four double bonds, but also in the amount of diene and triene species present in TAGs (with a few exceptions)”
Claim · model-written summary
The authors infer no significant TAG species or fatty acid distribution change within 25 minutes at 180 °C.
- Taxon
- sesame seedsSesamum indicumt0
- Outcome
- molecular species or fatty acid distribution of TAGse0
- Direction
- no significant changese0
- Qualifier
- within 25 min of roasting at 180 °Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sesame seeds”
e0“no significant changes in molecular species or fatty acid distribution of TAGs would occur within 25 min of roasting at 180 °C”
The same questions in other papers
processing · molecular: metabolites · Sesamum indicum (sesame)Positive and negative results
2 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.