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Increased phenolic content and antioxidant capacity of the heated leaves of yacon (Smallanthus sonchifolius)
| Content Provider | Scilit |
|---|---|
| Author | Ueda, Yuto Matsuda, Yasushi Murata, Tatsuro Hoshi, Yoshikazu Kabata, Kiyotaka Ono, Masateru Kinoshita, Hideki Igoshi, Keiji Yasuda, Shin |
| Copyright Year | 2019 |
| Description | Journal: Bioscience, Biotechnology, and Biochemistry We investigated the content of phenolic compounds and antioxidant capacity of two batches of non-heated and heated leaves of the yacon cultivar “Andes no yuki”, grown in Japan. Lyophilized yacon leaves heated at 160°C for 20 min and 100°C for 60 min had a 1.96 to 9.69-times higher total phenolic content than that of the non-heated leaves. Heated leaves exhibited a 1.98 to 4.07-times higher antioxidant capacity than that of the non-heated leaves in three different free radical scavenging assays. Heated leaves were more efficient at attenuating the superoxide anion radical production in human granulocytic cells than the non-heated leaves. High-performance liquid chromatography analysis revealed that, in the heated leaves, the caffeic acid content was 2.13 to 3.64-times higher and the chlorogenic acid content was slightly lower than those in the non-heated leaves. Hence, heat processing may affect the active constituent contents in yacon leaves, potentiating its antioxidant capacity. Abbreviations: $ABTS^{+}$: 2,2′-azinobis(2-ethylbenzothiazoline-6-sulfonic acid) cation; DPPH: 1,1-diphenyl-2-picrylhydrazyl, HPLC: high-performance liquid chromatography; NBT: nitroblue tetrazolium; O_{2}$^{−}$: superoxide anion; PMA: phorbol 12-myristate 13-acetate; PMS: phenazine methosulfate; TEAC: Trolox equivalent antioxidant capacity |
| Related Links | https://academic.oup.com/bbb/article-pdf/83/12/2288/36829413/bbb2288.pdf |
| Ending Page | 2297 |
| Page Count | 10 |
| Starting Page | 2288 |
| ISSN | 09168451 |
| e-ISSN | 13476947 |
| DOI | 10.1080/09168451.2019.1644151 |
| Journal | Bioscience, Biotechnology, and Biochemistry |
| Issue Number | 12 |
| Volume Number | 83 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2019-12-02 |
| Access Restriction | Open |
| Subject Keyword | Journal: Bioscience, Biotechnology, and Biochemistry Yacon Leaves Caffeic Acid Heat Processing |
| Content Type | Text |
| Subject | Organic Chemistry Medicine Analytical Chemistry Molecular Biology Biochemistry Applied Microbiology and Biotechnology Biotechnology |
