WU Shaoru,FENG Weihong,YANG Lixin,et al.Comparison of Character,Turgidity and Chemical Composition of Prunellae Spica Seeds,Chia Seeds and Basil Seeds[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):18-26.
WU Shaoru,FENG Weihong,YANG Lixin,et al.Comparison of Character,Turgidity and Chemical Composition of Prunellae Spica Seeds,Chia Seeds and Basil Seeds[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):18-26. DOI: 10.13422/j.cnki.syfjx.20220553.
Comparison of Character,Turgidity and Chemical Composition of Prunellae Spica Seeds,Chia Seeds and Basil Seeds增强出版
In order to explore the utilization value of the seeds dropped in the harvesting, processing, storage and transportation of Prunellae Spica, the character, turgidity and chemical composition of the seeds were analyzed and compared with those of the commercially available varieties, such as chia seeds and basil seeds.
Method
2
Character was observed directly. The turgidity was determined according to the method of general rule 2101 of
Chinese Pharmacopoeia
(part Ⅳ, the 2020 edition). The contents of six phenolic acids (danshensu, protocatechuic acid, protocatechuic aldehyde, caffeic acid, salviaflaside and rosmarinic acid) were determined by ultra performance liquid chromatography (UPLC), acetonitrile (A)-0.1% formic acid aqueous solution (B) was used as mobile phase for gradient elution (0-7 min, 2%-8%A; 7-13 min, 8%A; 13-14 min, 8%-17%A; 14-30 min, 17%A), the detection wavelength was at 280 nm. The liposoluble components were extracted by
n
-hexane and identified by gas chromatography-mass spectrometry (GC-MS), and the contents of five fatty acids, namely palmitic acid, oleic acid, stearic acid, linolic acid and
α
-linolenic acid, were determined on a DB-35MS capillary column (0.25 mm×60.0 m, 0.25 µm), the injection temperature was 250 ℃, the carrier gas was high-purity helium with a flow rate of 1.0 mL·min
-1
and the splitting ratio of 50∶1. The volatile oil was extracted by steam distillation method and its components were identified by GC-MS on a WM-5MS capillary column (0.25 mm×30.0 m, 0.25 µm) with the injection temperature of 250 ℃, the flow rate of 1.0 mL·min
-1
and the splitting ratio of 10∶1.
Result
2
Prunellae Spica
seeds were slightly smaller than chia seeds and basil seeds, and their color of seed coat was obviously different. Prunellae Spica
seeds had strong water absorption and swelling characteristics, and the turgidity was 17.4 mL·g
-1
, which was lower than that of chia seeds (25.2 mL·g
-1
) and basil seeds (35.6 mL·g
-1
). Prunellae Spica
seeds were rich in phenolic and fatty acids, while the content of volatile oil was very low. The main phenolic acids were salviaflaside and rosmarinic acid, with the contents of 0.579% and 0.392%, respectively. The total content of five fatty acids in
n
-hexane extract was 90.1%, and total content of unsaturated fatty acids was 80.6%, among which content of
α
-linolenic acid was 50.0%, which was slightly lower than 57.2% of chia seeds and similar to 50.0% of basil seeds.
Conclusion
2
Prunellae Spica seeds have good turgidity, rich in phenolic acids and unsaturated fatty acids, and especially with high amount of
α
-linolenic acid. It is worthy of being developed as functional food to realize comprehensive utilization of the waste resources of Prunellae Spica.
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