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Dr Dharini Sivakumar
Dr

Dharini Sivakumar

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Overview

Availability

Dr Dharini Sivakumar is:
Available for supervision

Research interests

  • Ensuring food security involves providing safe, nutritious, and sustainable food.

    My experience spans post-harvest storage, packaging, preservation, processing, food chemistry, and metabolomic analysis, focusing on pre-harvest and post-harvest supply chain management for subtropical fruits such as avocados, citrus, and lychees. I have expertise in community engagement for post-harvest processing, product development, and market access, as well as in developing cost-effective storage solutions and preservation technologies in collaboration with the fruit industry. My research emphasizes phytochemical changes from farm to fork and strategies to sustain them for consumer benefits, with a particular focus on rescuing bioactives to develop healthy diets by integrating gastronomy, food science, and nutrition. Additionally, I have worked with underutilized and traditional vegetables, including amaranth, nightshade, and pumpkin leaves, using metabolomics to validate breeding programs and optimize food preparation methods. This work aims to enhance the absorption of minerals and bioactive compounds while reducing antinutritive compounds, thereby improving the nutritional status of rural populations in Africa. I have also contributed to the sweet potato breeding program in Africa, selecting varieties rich in anthocyanins, beta-carotene, and iron to address nutritional deficiencies and support food security in rural regions.

Works

Search Professor Dharini Sivakumar’s works on UQ eSpace

205 works between 2005 and 2026

21 - 40 of 205 works

2024

Journal Article

Impact of drying on phytonutritional compounds, in vitro antioxidant activity and cytotoxicity of Spiny saltbush (Rhagodia spinescens)

Mianda, Sephora Mutombo, Li, Jiaxuan, Akter, Saleha, Adiamo, Oladipupo, Sivakumar, Dharini and Sultanbawa, Yasmina (2024). Impact of drying on phytonutritional compounds, in vitro antioxidant activity and cytotoxicity of Spiny saltbush (Rhagodia spinescens). Antioxidants, 13 (11) 1382, 1382. doi: 10.3390/antiox13111382

Impact of drying on phytonutritional compounds, in vitro antioxidant activity and cytotoxicity of Spiny saltbush (Rhagodia spinescens)

2024

Journal Article

Impact of fermentation of pumpkin leaves and melon varieties with Lactobacillus strains on physicochemical properties, antioxidant activity, and carotenoid compounds

Mhlanga, Pretty, Mianda, Sephora Mutombo and Sivakumar, Dharini (2024). Impact of fermentation of pumpkin leaves and melon varieties with Lactobacillus strains on physicochemical properties, antioxidant activity, and carotenoid compounds. Foods, 13 (22) 3562, 1-25. doi: 10.3390/foods13223562

Impact of fermentation of pumpkin leaves and melon varieties with Lactobacillus strains on physicochemical properties, antioxidant activity, and carotenoid compounds

2024

Journal Article

Bio‐functional properties of Jilungin (Terminalia canescens)

Akter, Saleha, Phan, Anh Dao Thi, Adiamo, Oladipupo Q., Bobasa, Eshetu Mulisa, Seididamyeh, Maral, Rajagopal, Gayathri, Sivakumar, Dharini and Sultanbawa, Yasmina (2024). Bio‐functional properties of Jilungin (Terminalia canescens). Journal of Food Science, 89 (11), 7664-7679. doi: 10.1111/1750-3841.17457

Bio‐functional properties of Jilungin (Terminalia canescens)

2024

Journal Article

Co-digestion of xanthan gum/Lactobacillus plantarum 75-coated cantaloupes with Natal plum (Carissa macrocarpa) fruits or beetroot (Beta vulgaris L.) leaves on the bioaccessibility of anthocyanins and carotenoid components

Chikhala, Tshudufhadzo, Seke, Faith, Mianda, Sephora Mutombo, Slabbert, Retha and Sivakumar, Dharini (2024). Co-digestion of xanthan gum/Lactobacillus plantarum 75-coated cantaloupes with Natal plum (Carissa macrocarpa) fruits or beetroot (Beta vulgaris L.) leaves on the bioaccessibility of anthocyanins and carotenoid components. International Journal of Food Science and Technology, 59 (10), 6961-6974. doi: 10.1111/ijfs.17404

Co-digestion of xanthan gum/Lactobacillus plantarum 75-coated cantaloupes with Natal plum (Carissa macrocarpa) fruits or beetroot (Beta vulgaris L.) leaves on the bioaccessibility of anthocyanins and carotenoid components

2024

Conference Publication

Understanding of bioactivities of Australian Persoonia spp.

Zhang, Jiale, Sivakumaran, Dharini, Netzel, Michael E., Pengelly, Andrew and Sultanbawa, Yasmina (2024). Understanding of bioactivities of Australian Persoonia spp.. 22nd World Congress of Food Science and Technology, Rimini, Italy, 8-12 September 2024.

Understanding of bioactivities of Australian Persoonia spp.

2024

Conference Publication

Exploring the Agronomy, Nutritional Quality and Food Functionality of Saltbush

Sun, Yanlin, Netzel, Michael E., Sivakumaran, Dharini and Sultanbawa, Yasmina (2024). Exploring the Agronomy, Nutritional Quality and Food Functionality of Saltbush. NextGen Ag Symposium, St Lucia, QLD Australia, 6 September 2024.

Exploring the Agronomy, Nutritional Quality and Food Functionality of Saltbush

2024

Journal Article

Impact of different pre-treatments and drying methods on the physicochemical properties, bioactive compounds and antioxidant activity of different tomato (Solanum lycopersicum) cultivars

Nzimande, Nokuthula Abegale, Mianda, Sephora Mutombo, Seke, Faith and Sivakumar, Dharini (2024). Impact of different pre-treatments and drying methods on the physicochemical properties, bioactive compounds and antioxidant activity of different tomato (Solanum lycopersicum) cultivars. LWT- Food Science and Technology, 207 116641, 1-10. doi: 10.1016/j.lwt.2024.116641

Impact of different pre-treatments and drying methods on the physicochemical properties, bioactive compounds and antioxidant activity of different tomato (Solanum lycopersicum) cultivars

2024

Journal Article

The effects of nitrogen application and varietal variation on the product quality and In Vitro bioaccessibility of bioactive compounds of baby spinach varieties grown in a soilless growth medium

Bhengu, Nhlanzeko Mbalenhle, Mianda, Sephora Mutombo, Maboko, Martin Makgose and Sivakumar, Dharini (2024). The effects of nitrogen application and varietal variation on the product quality and In Vitro bioaccessibility of bioactive compounds of baby spinach varieties grown in a soilless growth medium. Foods, 13 (17) 2667, 2667. doi: 10.3390/foods13172667

The effects of nitrogen application and varietal variation on the product quality and In Vitro bioaccessibility of bioactive compounds of baby spinach varieties grown in a soilless growth medium

2024

Journal Article

Blockchain-enabled provenance and supply chain governance for Indigenous foods and botanicals: a design approach study

Powell, Warwick, Sultanbawa, Yasmina, Thomson, Madonna, Sivakumar, Dharini, Dipu, Mokaddes Ahmed, Williams, Luke, Turner-Morris, Charles, Sigley, Gary and He, Shan (2024). Blockchain-enabled provenance and supply chain governance for Indigenous foods and botanicals: a design approach study. Sustainability, 16 (16) 7084, 7084. doi: 10.3390/su16167084

Blockchain-enabled provenance and supply chain governance for Indigenous foods and botanicals: a design approach study

2024

Conference Publication

Analysis of polyphenolic composition of Persoonia linearis fruits using untargeted metabolomics

Zhang, Jiale, Sivakumaran, Dharini, Netzel, Michael E., Phan, Anh Dao Thi, Pengelly, Andrew and Sultanbawa, Yasmina (2024). Analysis of polyphenolic composition of Persoonia linearis fruits using untargeted metabolomics. 8th International Symposium on Phytochemicals in Medicine and Food (8-ISPMF), Shenyang, China, 2-6 August 2024.

Analysis of polyphenolic composition of Persoonia linearis fruits using untargeted metabolomics

2024

Journal Article

In-vitro colonic fermentation of Kakadu plum (Terminalia ferdinandiana) fruit powder: microbial biotransformation of phenolic compounds and cytotoxicity

Adiamo, Oladipupo Q., Bobasa, Eshetu M., Phan, Anh Dao Thi, Akter, Saleha, Seididamyeh, Maral, Dayananda, Buddhi, Gaisawat, Mohd Baasir, Kubow, Stan, Sivakumar, Dharini and Sultanbawa, Yasmina (2024). In-vitro colonic fermentation of Kakadu plum (Terminalia ferdinandiana) fruit powder: microbial biotransformation of phenolic compounds and cytotoxicity. Food Chemistry, 448 139057, 139057. doi: 10.1016/j.foodchem.2024.139057

In-vitro colonic fermentation of Kakadu plum (Terminalia ferdinandiana) fruit powder: microbial biotransformation of phenolic compounds and cytotoxicity

2024

Journal Article

Australian native lemongrass (Cymbopogon ambiguus A. Camus): an underestimated herbal plant

Zhou, Yuntao, Akter, Saleha, Phan, Anh Dao Thi, Bobasa, Eshetu Mulisa, Seididamyeh, Maral, Sivakumar, Dharini and Sultanbawa, Yasmina (2024). Australian native lemongrass (Cymbopogon ambiguus A. Camus): an underestimated herbal plant. AppliedChem, 4 (2), 212-223. doi: 10.3390/appliedchem4020014

Australian native lemongrass (Cymbopogon ambiguus A. Camus): an underestimated herbal plant

2024

Journal Article

Influence of harvesting stages on phytonutrients and antioxidant properties of leaves of five purple-fleshed sweet potato (Ipomoea batatas) genotypes

Tshilongo, Lavhelani, Mianda, Sephora Mutombo, Seke, Faith, Laurie, Sunette M. and Sivakumar, Dharini (2024). Influence of harvesting stages on phytonutrients and antioxidant properties of leaves of five purple-fleshed sweet potato (Ipomoea batatas) genotypes. Foods, 13 (11) 1640, 1-26. doi: 10.3390/foods13111640

Influence of harvesting stages on phytonutrients and antioxidant properties of leaves of five purple-fleshed sweet potato (Ipomoea batatas) genotypes

2024

Journal Article

Seventy years of sweet potato [Ipomoea batatas L. (LAM)] research in South Africa

Laurie, Sunette M., Mulabisana, Julia, Sutherland, Rene, Sivakumar, Dharini, Pofu, Kgabo, Mphela, Whelma M., Truter, Mariette, du Plooy, Ian, Araya, Nadia, Araya, Hintsa, Nyathi, Melvin, Kistnasamy, Ashika, Cloete, Michele, Nkosi, Brightness, Shimelis, Hussein, Laing, Mark D., Malebane, Mmapaseka E. and Bairu, Michael W. (2024). Seventy years of sweet potato [Ipomoea batatas L. (LAM)] research in South Africa. Crop Science, 64 (3), 1112-1128. doi: 10.1002/csc2.21097

Seventy years of sweet potato [Ipomoea batatas L. (LAM)] research in South Africa

2024

Conference Publication

Minerals and trace elements in broad-leaved Geebung (Persoonia stradbrokensis), an underutilised native Australian fruit

Zhang, J., Sivakumar, D., Netzel, M.E. and Sultanbawa, Y. (2024). Minerals and trace elements in broad-leaved Geebung (Persoonia stradbrokensis), an underutilised native Australian fruit. 57th Nutrition Society of New Zealand and 47th Nutrition Society of Australia Joint Annual Scientific Meeting, Auckland, New Zealand, 28 November – 1 December 2023. Cambridge, United Kingdom: Cambridge University Press. doi: 10.1017/s0029665124000740

Minerals and trace elements in broad-leaved Geebung (Persoonia stradbrokensis), an underutilised native Australian fruit

2024

Journal Article

Physicochemical, antioxidant and microbial stability of Burdekin plum leathers

Chen, Gengning, Olarte Mantilla, Sandra Milena, Netzel, Michael E., Cozzolino, Daniel, Sivakumar, Dharini and Sultanbawa, Yasmina (2024). Physicochemical, antioxidant and microbial stability of Burdekin plum leathers. International Journal of Food Science and Technology, 59 (4), 2716-2726. doi: 10.1111/ijfs.17023

Physicochemical, antioxidant and microbial stability of Burdekin plum leathers

2024

Journal Article

Utilizing xanthan gum coatings as probiotic bacteria carriers to enhance postharvest quality and antioxidants in fresh-cut cantaloupe and honeydew (Cucumis melo L.) Melons

Chikhala, Tshudufhadzo, Seke, Faith, Slabbert, Retha M., Sultanbawa, Yasmina and Sivakumar, Dharini (2024). Utilizing xanthan gum coatings as probiotic bacteria carriers to enhance postharvest quality and antioxidants in fresh-cut cantaloupe and honeydew (Cucumis melo L.) Melons. Foods, 13 (6) 940, 1-25. doi: 10.3390/foods13060940

Utilizing xanthan gum coatings as probiotic bacteria carriers to enhance postharvest quality and antioxidants in fresh-cut cantaloupe and honeydew (Cucumis melo L.) Melons

2024

Journal Article

Phytonutritional composition and antioxidant properties of Southern African, purple-fleshed sweet potato (Ipomoea batatas (L.) Lam.) storage roots

Ngcobo, Ayanda A., Mianda, Sephora Mutombo, Seke, Faith, Sunette, Laurie M. and Sivakumar, Dharini (2024). Phytonutritional composition and antioxidant properties of Southern African, purple-fleshed sweet potato (Ipomoea batatas (L.) Lam.) storage roots. Antioxidants, 13 (3) 338, 1-21. doi: 10.3390/antiox13030338

Phytonutritional composition and antioxidant properties of Southern African, purple-fleshed sweet potato (Ipomoea batatas (L.) Lam.) storage roots

2024

Conference Publication

Burdekin plum fruit leather processing and storage

Chen, Gengning, Sultanbawa, Yasmina, Netzel, Michael, Cozzolino, Daniel, Olarte Mantilla, Sandra and Sivakumar, Dharini (2024). Burdekin plum fruit leather processing and storage. Joint virtual workshop between the Centre for Nutrition and Food Sciences (CNAFS), Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Australia and the Tshwane University of Technology, South Africa, Promoting Health and Food Security with Indigenous Crops, Virtual, 5-6 March 2024.

Burdekin plum fruit leather processing and storage

2024

Journal Article

Brassica microgreens cabbage (Brassica oleracea), radish (Raphanus sativus) and rocket (Eruca vesicaria) (L.) Cav: application of red‐light emitting diodes lighting during postharvest storage and in vitro digestion on bioactive compounds and antioxidant activity

Ntsoane, Manyasha L. L., Manhivi, Vimbainashe E., Shoko, Tinotenda, Seke, Faith, Sultanbawa, Yasmina and Sivakumar, Dharini (2024). Brassica microgreens cabbage (Brassica oleracea), radish (Raphanus sativus) and rocket (Eruca vesicaria) (L.) Cav: application of red‐light emitting diodes lighting during postharvest storage and in vitro digestion on bioactive compounds and antioxidant activity. International Journal of Food Science & Technology, 59 (3), 1432-1442. doi: 10.1111/ijfs.16890

Brassica microgreens cabbage (Brassica oleracea), radish (Raphanus sativus) and rocket (Eruca vesicaria) (L.) Cav: application of red‐light emitting diodes lighting during postharvest storage and in vitro digestion on bioactive compounds and antioxidant activity

Funding

Current funding

  • 2026 - 2027
    Smart Photodynamic Technology for Postharvest Decay Management
    Australia's Economic Accelerator Ignite Grants
    Open grant

Past funding

  • 2023 - 2024
    Assessing the quality and safety of herbal beverages for market access
    Roogenic Pty Ltd
    Open grant
  • 2023 - 2025
    Ecological Traceability as a Public Commons - New Models of Indigenous Supply Chain Data Governance
    National Agriculture Traceability Grants - Australian Department of Agriculture, Fisheries and Forestry
    Open grant

Supervision

Availability

Dr Dharini Sivakumar is:
Available for supervision

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Supervision history

Current supervision

Completed supervision

Media

Enquiries

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