
Overview
Availability
- Dr Dharini Sivakumar is:
- Available for supervision
Research interests
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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
2020
Journal Article
Stimulation of Light-Emitting Diode Treatment on Defence System and Changes in Mesocarp Metabolites of Avocados Cultivars (Hass and Fuerte) during Simulated Market Shelf Conditions
Mpai, Semakaleng and Sivakumar, Dharini (2020). Stimulation of Light-Emitting Diode Treatment on Defence System and Changes in Mesocarp Metabolites of Avocados Cultivars (Hass and Fuerte) during Simulated Market Shelf Conditions. Agronomy, 10 (11) 1654, 1-25. doi: 10.3390/agronomy10111654
2020
Journal Article
Comparison of phenolic compounds, carotenoids, amino acid composition, in vitro antioxidant and anti-diabetic activities in the leaves of Seven Cowpea (Vigna unguiculata) cultivars
Moloto, Mapula R., Phan, Anh Dao T., Shai, Jerry L., Sultanbawa, Yasmina and Sivakumar, Dharini (2020). Comparison of phenolic compounds, carotenoids, amino acid composition, in vitro antioxidant and anti-diabetic activities in the leaves of Seven Cowpea (Vigna unguiculata) cultivars. Foods, 9 (9) 1285, 1285. doi: 10.3390/foods9091285
2020
Journal Article
Impact of moist cooking methods on colour, anti-nutritive compounds and phenolic metabolites in African nightshade (Solanum retroflexum Dun.)
Managa, Millicent G., Mpai, Semagalene, Remize, Fabienne, Garcia, Cyrielle and Sivakumar, Dharini (2020). Impact of moist cooking methods on colour, anti-nutritive compounds and phenolic metabolites in African nightshade (Solanum retroflexum Dun.). Food Chemistry, 325 126805, 1-8. doi: 10.1016/j.foodchem.2020.126805
2020
Journal Article
Effect of Lactic Acid Fermentation on Color, Phenolic Compounds and Antioxidant Activity in African Nightshade
Degrain, Alexandre, Manhivi, Vimbainashe, Remize, Fabienne, Garcia, Cyrielle and Sivakumar, Dharini (2020). Effect of Lactic Acid Fermentation on Color, Phenolic Compounds and Antioxidant Activity in African Nightshade. Microorganisms, 8 (9) 1324, 1-12. doi: 10.3390/microorganisms8091324
2020
Journal Article
Influence of growing seasons on metabolic composition, and fruit quality of avocado cultivars at ‘ready-to-eat stage’
Mpai, Semakaleng and Sivakumar, Dharini (2020). Influence of growing seasons on metabolic composition, and fruit quality of avocado cultivars at ‘ready-to-eat stage’. Scientia Horticulturae, 265 109159, 1-13. doi: 10.1016/j.scienta.2019.109159
2020
Journal Article
Enrichment of mango fruit leathers with natal plum (Carissa macrocarpa) improves their phytochemical content and antioxidant properties
Mphaphuli, Tshudufhadzo, Manhivi, Vimbainashe E., Slabbert, Retha, Sultanbawa, Yasmina and Sivakumar, Dharini (2020). Enrichment of mango fruit leathers with natal plum (Carissa macrocarpa) improves their phytochemical content and antioxidant properties. Foods, 9 (4) 431, 431. doi: 10.3390/foods9040431
2020
Journal Article
Optimisation of O2 and CO2 concentrations to retain quality and prolong shelf life of ‘shelly’ mango fruit using a simplex lattice mixture design
Ntsoane, Makgafele L., Sivakumar, Dharini and Mahajan, Pramod V. (2020). Optimisation of O2 and CO2 concentrations to retain quality and prolong shelf life of ‘shelly’ mango fruit using a simplex lattice mixture design. Biosystems Engineering, 192, 14-23. doi: 10.1016/j.biosystemseng.2020.01.009
2020
Journal Article
Effects of different drying methods on untargeted phenolic metabolites, and antioxidant activity in Chinese cabbage (Brassica rapa L. subsp. chinensis) and nightshade (Solanum retroflexum Dun.)
Managa, G. Millicent, Sultanbawa, Yasmina and Sivakumar, Dharini (2020). Effects of different drying methods on untargeted phenolic metabolites, and antioxidant activity in Chinese cabbage (Brassica rapa L. subsp. chinensis) and nightshade (Solanum retroflexum Dun.). Molecules, 25 (6) 1326, 1-23. doi: 10.3390/molecules25061326
2020
Journal Article
Stomatal conductance, leaf chlorophyll content, growth, and yield of sweet pepper in response to plant growth regulators
Mbandlwa, Noxolo P., Fotouo-M, Helene, Maboko, Martin M. and Sivakumar, Dharini (2020). Stomatal conductance, leaf chlorophyll content, growth, and yield of sweet pepper in response to plant growth regulators. International Journal of Vegetable Science, 26 (2), 116-126. doi: 10.1080/19315260.2019.1610925
2020
Journal Article
Extension of avocado fruit postharvest quality using non-chemical treatments
Munhuweyi, Karen, Mpai, Semakaleng and Sivakumar, Dharini (2020). Extension of avocado fruit postharvest quality using non-chemical treatments. Agronomy, 10 (2) 212, 1-21. doi: 10.3390/agronomy10020212
2020
Journal Article
Preharvest application of naphthalene acetic acid and kelpak® improve postharvest quality and phytonutrient contents of sweet pepper
Mbandlwa, Noxolo P., Fotouo-M, Helene, Maboko, Martin M. and Sivakumar, Dharini (2020). Preharvest application of naphthalene acetic acid and kelpak® improve postharvest quality and phytonutrient contents of sweet pepper. International Journal of Vegetable Science, 26 (1), 3-14. doi: 10.1080/19315260.2019.1570415
2020
Journal Article
Enhancement of the phytonutrient content of a gluten-free soup using a composite of vegetables
Manhivi, Vimbainashe E., Sultanbawa, Yasmina and Sivakumar, Dharini (2020). Enhancement of the phytonutrient content of a gluten-free soup using a composite of vegetables. International Journal of Food Properties, 23 (1), 1051-1065. doi: 10.1080/10942912.2020.1778028
2019
Journal Article
Influence of different types of modified atmosphere packaging films and storage time on quality and bioactive compounds in fresh-cut cauliflower
Mashabela, Madonna, Mahajan, Pramod V. and Sivakumar, Dharini (2019). Influence of different types of modified atmosphere packaging films and storage time on quality and bioactive compounds in fresh-cut cauliflower. Food Packaging and Shelf Life, 22 100374, 1-8. doi: 10.1016/j.fpsl.2019.100374
2019
Book Chapter
Use of essential oils to improve postharvest quality and control postharvest decay of tropical, subtropical, and temperate fruits
Sivakumar, Dharini and Romanazzi, Gianfranco (2019). Use of essential oils to improve postharvest quality and control postharvest decay of tropical, subtropical, and temperate fruits. Postharvest pathology of fresh horticultural produce. (pp. 659-676) edited by Lluís Palou and Joseph L. Smilanick. Boca Raton, FL USA: CRC Press. doi: 10.1201/9781315209180-20
2019
Journal Article
Postharvest responses of hydroponically grown lettuce varieties to nitrogen application rate
Mampholo, Bevly M., Maboko, Martin, Soundy, Puffy and Sivakumar, Dharini (2019). Postharvest responses of hydroponically grown lettuce varieties to nitrogen application rate. Journal of Integrative Agriculture, 18 (10), 2272-2283. doi: 10.1016/S2095-3119(19)62664-X
2019
Journal Article
An integrated approach for harvesting Natal plum (Carissa macrocarpa) for quality and functional compounds related to maturity stages
Ndou, Aysha, Tinyani, Peter P., Slabbert, Retha.M., Sultanbawa, Yasmina and Sivakumar, Dharini (2019). An integrated approach for harvesting Natal plum (Carissa macrocarpa) for quality and functional compounds related to maturity stages. Food Chemistry, 293, 499-510. doi: 10.1016/j.foodchem.2019.04.102
2019
Journal Article
Assessment of eleven South African peach cultivars for susceptibility to brown rot and blue mould
Gununu, Pascalia R., Munhuweyi, Karen, Obianom, Patience C. and Sivakumar, Dharini (2019). Assessment of eleven South African peach cultivars for susceptibility to brown rot and blue mould. Scientia Horticulturae, 254, 1-6. doi: 10.1016/j.scienta.2019.04.067
2019
Journal Article
Impact of low oxygen storage on quality attributes including pigments and volatile compounds in 'shelly’ mango
Ntsoane, Makgafele Lucia, Luca, Alexandru, Zude-Sasse, Manuela, Sivakumar, Dharini and Mahajan, Pramod V. (2019). Impact of low oxygen storage on quality attributes including pigments and volatile compounds in 'shelly’ mango. Scientia Horticulturae, 250, 174-183. doi: 10.1016/j.scienta.2019.02.041
2019
Journal Article
Quality assesment and postharvest technology of mango: A review of its current status and future perspectives
Ntsoane, Makgafele Lucia, Zude-Sasse, Manuela, Mahajan, Pramod and Sivakumar, Dharini (2019). Quality assesment and postharvest technology of mango: A review of its current status and future perspectives. Scientia Horticulturae, 249, 77-85. doi: 10.1016/j.scienta.2019.01.033
2019
Journal Article
Cultivar-specific responses in red sweet peppers grown under shade nets and controlled-temperature plastic tunnel environment on antioxidant constituents at harvest
Lekala, Chembi Solomon, Madani, Khalil Saber H., Phan, Anh Dao Thi, Maboko, Martin Makgose, Fotouo, Helen, Soundy, Puffy, Sultanbawa, Yasmina and Sivakumar, Dharini (2019). Cultivar-specific responses in red sweet peppers grown under shade nets and controlled-temperature plastic tunnel environment on antioxidant constituents at harvest. Food Chemistry, 275, 85-94. doi: 10.1016/j.foodchem.2018.09.097
Funding
Past funding
Supervision
Availability
- Dr Dharini Sivakumar is:
- Available for supervision
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Supervision history
Current supervision
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Doctor Philosophy
Optimization and Characterization of Seaweed Bioactive Materials for Encapsulation and Valorization of Seaweed based products
Principal Advisor
Other advisors: Professor Yasmina Sultanbawa, Dr Run Zhang
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Doctor Philosophy
Morphological, physicochemical, phytochemical, nutritional, and bioactivities of different Persoonia fruits
Associate Advisor
Other advisors: Dr Michael Netzel, Professor Yasmina Sultanbawa
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Doctor Philosophy
Exploring the Nutritional quality and Food Functionality of Salt Bush (Atriplex semibaccata) - an Australian Indigenous Edible Halophyte
Associate Advisor
Other advisors: Dr Michael Netzel, Professor Yasmina Sultanbawa
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Doctor Philosophy
Improving the Shelf-life of Salmon Fillets Using an Advanced Nanoencapsulation Technology
Associate Advisor
Other advisors: Dr Run Zhang, Professor Yasmina Sultanbawa
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