Phenolic compounds, including avenanthramides, and antioxidant properties in conventionally and organically grown oat cultivars affected by germination

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F25%3A10179197" target="_blank" >RIV/00027006:_____/25:10179197 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2666154325006702/pdfft?md5=8d749465f4d9a06febf823d344d44952&pid=1-s2.0-S2666154325006702-main.pdf" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2666154325006702/pdfft?md5=8d749465f4d9a06febf823d344d44952&pid=1-s2.0-S2666154325006702-main.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jafr.2025.102299" target="_blank" >10.1016/j.jafr.2025.102299</a>

Result language

angličtina

Original language name

Phenolic compounds, including avenanthramides, and antioxidant properties in conventionally and organically grown oat cultivars affected by germination

Original language description

Oats (Avena sativa L.) are increasingly recognized for their health benefits, particularly due to their unique avenanthramides (AVNs) and diverse phenolic acid content. While germination is known to influence polyphenol contents, the effects on AVNs and phenolic acids in Austrian oat cultivars have not been previously characterized. This study investigated in detail the AVNs, individual phenolic acids, antioxidant and enzymatic activity in four Austrian oat cultivars (Erlebek, Max, Enjoy, Earl) grown under conventional and organic conditions and germinated for 0-192 h. Samples were analyzed for total phenolic content (TPC), antioxidant potential, AVNs, enzymatic activity, and soluble sugars using advanced assays and chromatography techniques for detailed profiling. Results showed that germination significantly increased AVN levels, phenolic acids, antioxidant activity, and alpha-amylase activity, with optimal germination time detected at 72-96 h. AVN concentration in the Erlbek cultivar cultivated organically increased around 3.6-fold after 96 h of germination. Total bound phenolics, mainly ferulic and p-coumaric acids levels, increased significantly, with conventionally grown Erlbek showing a 2.8-fold increase after 96 h (1290 f 70 mu g/g ferulic acid (FA) and 3640 f 60 mu g/g d b., respectively). Organically grown oats generally exhibited higher concentrations of phenolics, AVNs, antioxidant potential and enzymatic activity. Among cultivars, Earl demonstrated the highest TPC and enzymatic activity, while Erlbek had the highest AVN and phenolic acid levels, especially after 72 h germination (150 f 10 mu g/g FA and 3640 f 60 mu g/g d b., respectively). Total AVNs in organic Erlbek were 2-times higher at 0 h (97 f 7 and 50 f 7 mu g/g d b) and were the highest at 72 h (194 f 10 mu g/g d b), with AVN B being the most abundant. Cultivation method and cultivar had little effect on the increase in antioxidant potential over germination time. Antioxidative potential increased consistently with germination time, independently of cultivation method and cultivar.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Agriculture and Food Research

ISSN

2666-1543

e-ISSN

2666-1543

Volume of the periodical

23

Issue of the periodical within the volume

OCT2025

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

102299

UT code for WoS article

001565874900004

EID of the result in the Scopus database

2-s2.0-105014604303