Cited by 76Seed and Plant BiochemistryPhytochemicals and Antioxidant ActivitiesNatural Antidiabetic Agents Studies

Characterization of saponins and phenolic compounds: antioxidant activity and inhibitory effects on α-glucosidase in different varieties of colored quinoa (Chenopodium quinoa Willd)

Han, Yameng, Chi, Jianwei, Zhang, Mingwei, Zhang, Ruifen, Fan, Sanhong, Huang, Fei, Xue, Kaming, Liu, Lei·2019·Bioscience Biotechnology and Biochemistry

Abstract

This study investigated the contents of saponins and phenolic compounds in relation to their antioxidant activity and α-glucosidase inhibition activity of 7 colored quinoa varieties. The total saponin content was significantly different among 7 varieties and ranged from 7.51 to 12.12 mg OAE/g DW. Darker quinoa had a higher content of phenolic compounds, as well as higher flavonoids and antioxidant activity than that of light varieties. Nine individual phenolic compounds were detected in free and bound form, with gallic acid and ferulic acid representing the major compounds. The free and bound phenolic compounds (gallic acid and ferulic acid in particular) exhibited high linear correlation with their corresponding antioxidant values. In addition, the free phenolic extracts from colored quinoa exhibited higher inhibitory activity against α-glucosidase than the bound phenolic extracts. These findings imply that colored quinoa with abundant bioactive phytochemicals could be an important natural source for preparing functional food.

Integrity signals

Registry

Crossref · 10.1080/09168451.2019.1638756

Cites

53 of 53 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Authors
Han, Y., Chi, J., Zhang, M., Zhang, R., Fan, S., Huang, F., Xue, K., & Liu, L.
Affiliations
  • Shanxi University (CN)
  • Guangdong Academy of Agricultural Sciences (CN)
  • Wuhan Union Hospital (CN)
Corresponding author
Liu, Lei
Venue
Bioscience Biotechnology and Biochemistry
Published
2019-11-02
Volume
83
Issue
11
Pages
2128-2139
ISSN
  • 0916-8451 (ISSN-L)
  • 1347-6947
OpenAlex
W2961069628
Cited by
76
References
53
Citations by year
2026: 4 · 2025: 14 · 2024: 14 · 2023: 13 · 2022: 13 · 2021: 13 · 2020: 4
FWCI
5.79
Type
journal article
Language
en
Open access
closed
Locations
  • Bioscience Biotechnology and Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • the Guangdong Provincial Science and Technology Project (No. 2016B020203004 & 2017B090907022)
  • the National Key Research Project of China (No. 2018YFD0401003-05 & 2016YFD0400702-2)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Seed and Plant Biochemistry
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
Keywords
quinoa, saponins, phenolic compounds, antioxidant activity, α-glucosidase inhibition, flavonoids, gallic acid, ferulic acid, free and bound phenolics, quinoa varieties, functional foods
MeSH terms
alpha-Glucosidases, Animals, Antioxidants, Flavonoids, Phenols, Saponins, Chenopodium quinoa, Rats, Glycoside Hydrolase Inhibitors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review