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- W2941893621 abstract "Sour Jujube seed from Ziziphus jujuba Mill. var. Spinosa (Bunge) Hu ex H. F. Chow is a traditional Chinese herb. It was demonstrated with significant activities in anti-depression and antioxidant by numerous pharmacological studies. Flavonoids is one of the main constituents in sour Jujube seed. The aim of this study was to propose a green ultrasound-assisted extraction (UAE) process of flavonoids from sour Jujube seed. The extraction parameters were investigated and optimized using single factor experiments, Plackett-Burman design (PBD) and response surface methodology (RSM). Moreover, a comparative analysis between ultrasound-assisted extraction and heat reflux extraction was performed to verify the ameliorating effects of ultrasound-assisted extraction on the flavonoids yield, the composition, antioxidant capacities in vitro and ROS scavenging capacity in PC12 cells. Meanwhile, the effects of flavonoids extract (FE) on Aβ transgenic Caenorhabditis elegans (GMC101) behavior were investigated. The optimal extracting conditions of total flavonoids were as follows: ethanol concentration 70.60 (v/v%), liquid-solid ratio 15.02:1 mL/g, ultrasonic power 404 W, extraction time 60.03 min. The highest extraction yield was 1.59%. When compared to Heat reflux extraction (HRE) that only has gained a yield of 1.356%. Approximately, the UAE method was able to increase the yield by 17.11%. Moreover, FE extracted by UAE displayed larger capacity of scavenging ABTS, DPPH, superoxide, and hydroxyl radicals and reducing the level of ROS accumulation in PC12 cells, suggesting the biological functions of these compounds could be also better protected under UAE conditions. Furthermore, FE could also increase the chemotaxis and heat stress resistance ability, delay the paralysis and extend the lifespan of Caenorhabditis elegans. UAE is a green and efficient technique for the preparation of flavonoids from sour Jujube seed. The flavonoids extract can reduce Aβ-induced toxicity in Caenorhabditis elegans." @default.
- W2941893621 created "2019-05-03" @default.
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- W2941893621 date "2019-07-01" @default.
- W2941893621 modified "2023-09-29" @default.
- W2941893621 title "Ultrasonicated sour Jujube seed flavonoids extract exerts ameliorative antioxidant capacity and reduces Aβ-induced toxicity in Caenorhabditis elegans" @default.
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- W2941893621 doi "https://doi.org/10.1016/j.jep.2019.111886" @default.
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