Effects of different cultivation modes on volatile aromatic substances of strawberry fruit
In order to explore the effects of cultivation modes on volatile aroma components of strawberry fruit,two cultivation modes of conventional soil cultivation and elevated substrate cultivation were set up to carry out cultivation exper-iments with Benihoppe(HY)and Angel 8(TS8H)as experimental materials.After fruit ripening,the aroma components of strawberry fruit were determined and analyzed by stir bar sorptive extraction(SBSE)combined with gas chromatography-mass spectrometry(GC-MS).The results showed that 83 kinds of volatile aroma substances were detected in the two straw-berry varieties,which could be divided into 12 categories.Among them,there were 29 fatty esters,three lactones,six aromatic esters,four fatty alcohols,five terpene alco-hols,two furanones,three fatty ketones,two terpene ke-tones,six fatty acids,eight fatty aldehydes,six terpenes and nine others.Among the aroma components,the rela-tive contents of lactone,terpene alcohol and fatty ester were higher.Under conventional soil cultivation,the rela-tive contents of lactone,terpene alcohol and fatty ester of Benihoppe were 46.77%,21.46% and 16.18%,respectively,and those of Angel 8 were 44.20%,25.71% and 19.77%,respectively.Under the treatment of elevated substrate cultiva-tion,the relative contents of lactone,terpene alcohol and fatty ester of Benihoppe were 51.17%,24.21% and 13.10%,re-spectively,and those of Angel 8 were 43.59%,18.11% and 16.54%,respectively.Under different cultivation modes,more than 90% of the volatile aroma substances in the same variety were the same,and the main volatile aroma substances were γ-decalactone,γ-dodecalactone and trans-nerolidol.The relative contents of γ-decalactone in Benihoppe and 4-methoxy-2,5-dimethyl-3(2H)-furanone(DMMF)in Angel 8 in elevated substrate cultivation were higher than those in coventional soil cultivation.In summary,elevated substrate cultivation can not only maintain the stability of the main volatile aroma substances in strawberry fruits,but also enhance the fruity and sweet aroma of fruits.
万方数据
维普
