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Influence of different cultivation systems on bioactivity of asparagus
Ku, Yang Gyu,Kang, Dong Hyeon,Lee, Choung Keun,Lee, Si Young,Ryu, Chan Seok,Kim, Dong Eok,Polovka, Martin,Namieś,nik, Jacek,Gorinstein, Shela Applied Science Publishers 2018 Food chemistry Vol.244 No.-
<P><B>Abstract</B></P> <P>Evaluation of functional and bioactive compounds of <I>Asparagus officinalis</I> L. growing in conventional and organic greenhouse and conventional open – field farming was the aim of this research. Polyphenols in cladodes grown conventionally were higher than organic. Flavonoids and carotenoids were the highest in cladodes in open field. Organic spears were richer in total phenolics (+6.9% and +19.1%) and flavonoids (+4.7% and 16.8%) and showed higher <I>in vitro</I> averages of antioxidant activities by three radical scavenging assays (+12.5% and+ 22.2%) than conventional. Partial differentiation of organically and conventionally grown samples was proved by multivariate statistics. The binding properties of polyphenols to HSA were relatively high in comparison with other plants. A strong positive correlation of binding properties and bioactivity of asparagus was estimated. All new found aspects for the first time lead to recommendation of inclusion of all investigated asparagus plants into the human diet in a wider scale.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Three cultivation growing systems of <I>Asparagus officinalis</I> L. (<I>AO</I>L) were compared. </LI> <LI> Polyphenols and flavonoids were the highest in conventional growing cladodes. </LI> <LI> The bioactivity of organic spears were higher than in conventional. </LI> <LI> The quenched fluorescence of HSA showed the bioactivity <I>AO</I>L. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>