Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity
<i>Tasmannia lanceolata</i>, <i>Diploglottis bracteata</i> and <i>Syzygium aqueum</i> 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 leave...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/12/3/623 |
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| author | Maral Seididamyeh Anh Dao Thi Phan Dharini Sivakumar Michael E. Netzel Ram Mereddy Yasmina Sultanbawa |
| author_facet | Maral Seididamyeh Anh Dao Thi Phan Dharini Sivakumar Michael E. Netzel Ram Mereddy Yasmina Sultanbawa |
| author_sort | Maral Seididamyeh |
| collection | DOAJ |
| description | <i>Tasmannia lanceolata</i>, <i>Diploglottis bracteata</i> and <i>Syzygium aqueum</i> 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 <i>T</i>. <i>lanceolata</i> and fruits of <i>D</i>. <i>bracteata</i> and <i>S</i>. <i>aqueum</i> 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 <i>T</i>. <i>lanceolata</i>, <i>D</i>. <i>bracteata</i>, and <i>S</i>. <i>aqueum</i> 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 <i>Pseudomonas viridiflava</i>, the main cause of soft rot in vegetables, <i>Bacillus subtilis</i>, <i>Rhodotorula diobovata</i> and <i>Alternaria alternata</i>. 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. |
| first_indexed | 2024-03-11T09:44:40Z |
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| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-11T09:44:40Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-1a705caac9c74afb8a94e34546a6f8a42023-11-16T16:41:59ZengMDPI AGFoods2304-81582023-02-0112362310.3390/foods12030623Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial ActivityMaral Seididamyeh0Anh Dao Thi Phan1Dharini Sivakumar2Michael E. Netzel3Ram Mereddy4Yasmina Sultanbawa5Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, AustraliaCentre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, AustraliaCentre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, AustraliaCentre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, AustraliaDepartment of Agriculture and Fisheries, Queensland Government, Coopers Plains, QLD 4108, AustraliaCentre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia<i>Tasmannia lanceolata</i>, <i>Diploglottis bracteata</i> and <i>Syzygium aqueum</i> 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 <i>T</i>. <i>lanceolata</i> and fruits of <i>D</i>. <i>bracteata</i> and <i>S</i>. <i>aqueum</i> 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 <i>T</i>. <i>lanceolata</i>, <i>D</i>. <i>bracteata</i>, and <i>S</i>. <i>aqueum</i> 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 <i>Pseudomonas viridiflava</i>, the main cause of soft rot in vegetables, <i>Bacillus subtilis</i>, <i>Rhodotorula diobovata</i> and <i>Alternaria alternata</i>. 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.https://www.mdpi.com/2304-8158/12/3/623<i>Diploglottis bracteata</i><i>Syzygium aqueum</i><i>Tasmannia lanceolata</i>antimicrobial activityindigenous plant extractsphytochemicals |
| spellingShingle | Maral Seididamyeh Anh Dao Thi Phan Dharini Sivakumar Michael E. Netzel Ram Mereddy Yasmina Sultanbawa Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity Foods <i>Diploglottis bracteata</i> <i>Syzygium aqueum</i> <i>Tasmannia lanceolata</i> antimicrobial activity indigenous plant extracts phytochemicals |
| title | Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity |
| title_full | Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity |
| title_fullStr | Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity |
| title_full_unstemmed | Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity |
| title_short | Valorisation of Three Underutilised Native Australian Plants: Phenolic and Organic Acid Profiles and In Vitro Antimicrobial Activity |
| title_sort | valorisation of three underutilised native australian plants phenolic and organic acid profiles and in vitro antimicrobial activity |
| topic | <i>Diploglottis bracteata</i> <i>Syzygium aqueum</i> <i>Tasmannia lanceolata</i> antimicrobial activity indigenous plant extracts phytochemicals |
| url | https://www.mdpi.com/2304-8158/12/3/623 |
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