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Outline
To determine the moisture retention rate, 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH)free radical scavenging rate, fatty acid content and volatile components composition of the Brassica oleracea var. italica seeds oil and sprouts oil respectively.
Gas chromatography-mass spectrometry (GC-MS) was employed to analyze the fatty acid profiles and volatile constituents of Brassica oleracea var. italica seeds oil and sprouts oil.
The main fatty acids in Brassica oleracea var. italica seeds oil were erucic acid (31.94%) and oleic acid (31.28%), with a total unsaturated fatty acid content of 84.07%. For sprouts oil, the predominant fatty acids were erucic acid (29.43%)and oleic acid (29.62%), and the total unsaturated fatty acid content reached 85.21%. In addition, 57 kinds of compounds were identified in brassica oleracea var. italica seeds oil. Alcohols were the most abundant class both in species and content, with 15 kinds of alcohol compounds detected; cubanol, propanol and butanol were the major alcohols, while ethanol was present at a low level. Tert-butyl alaninate was the most abundant ester. Only 3 kinds of aldehydes, namely hexanal, nonanal and 2-propenal, were detected. By contrast, 26 kinds of volatile compounds were identified in sprouts oil, which lacked olefins compared with seeds oil. Aromatic compounds were the most diverse and abundant components in sprouts oil, with 6 kinds of species detected, among which 1-benzylindole was the most dominant.Meanwhile, Brassica oleracea var. italica seeds oil also exhibited moisturizing and strong DPPH radical scavenging activity. The ability of Brassica oleracea var. italica seed oil to scavenge DPPH free radicals showed a significant dose-dependent effect. When the mass fraction was 10%, the scavenging rate could reach 97%.
Brassica oleracea var. italica seeds oil and sprouts oil possess high safety and distinctive flavors, supporting their further development and utilization.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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