Login | Request Account (DAF staff only)

Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Seididamyeh, M., Phan, A. D. T., Sivakumar, D., Netzel, M. E., Mereddy, R. and Sultanbawa, Y. (2023) Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity. Foods, 12 (3).

[img] XML (Supplementary Material)

Article Link: https://doi.org/10.3390/foods12030623

Publisher URL: https://www.mdpi.com/2304-8158/12/3/623


Tasmannia lanceolata, Diploglottis bracteata and Syzygium aqueum are understudied native Australian plants. This study aimed to characterise the non-anthocyanin phenolic and organic acid profiles of the aqueous extracts obtained from the leaves of T. lanceolata and fruits of D. bracteata and S. aqueum by UHPLC-Q-Orbitrap-MS/MS and UHPLC-TQ-MS/MS. A total of 39, 22, and 27 non-anthocyanin polyphenols were tentatively identified in T. lanceolata, D. bracteata, and S. aqueum extracts, respectively. Furthermore, sugars and ascorbic acid contents as well as in vitro antioxidant and antimicrobial activities of the extracts were determined. Response surface methodology was applied to achieve an extract blend with a strong inhibitory effect against Pseudomonas viridiflava, the main cause of soft rot in vegetables, Bacillus subtilis, Rhodotorula diobovata and Alternaria alternata. The identified compounds including organic acids (e.g., quinic, citric and malic acids) and polyphenols (e.g., catechin, procyanidins, and ellagitannins) might contribute to the observed antimicrobial activity. Furthermore, this study provides the most comprehensive phenolic profiles of these three underutilised native Australian plants to date. © 2023 by the authors.

Item Type:Article
Business groups:Crop and Food Science
Keywords:antimicrobial activity Diploglottis bracteata indigenous plant extracts phytochemicals Pseudomonas viridiflava Syzygium aqueum Tasmannia lanceolata
Subjects:Science > Biology > Biochemistry
Agriculture > Agriculture (General) > Agricultural chemistry. Agricultural chemicals
Plant culture
Plant culture > Food crops
Agriculture > By region or country > Australia
Live Archive:19 Feb 2023 23:47
Last Modified:19 Feb 2023 23:47

Repository Staff Only: item control page


Downloads per month over past year

View more statistics