
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
2022
Journal Article
A comparison of bioactive metabolites, antinutrients, and bioactivities of African pumpkin leaves (Momordica balsamina L.) cooked by different culinary techniques
Mashiane, Petunia, Shoko, Tinotenda, Manhivi, Vimbainashe, Slabbert, Retha, Sultanbawa, Yasmina and Sivakumar, Dharini (2022). A comparison of bioactive metabolites, antinutrients, and bioactivities of African pumpkin leaves (Momordica balsamina L.) cooked by different culinary techniques. Molecules, 27 (6) 1901, 1901. doi: 10.3390/molecules27061901
2022
Journal Article
Phenolic compounds suppress anthracnose decay by enhancing antifungal properties and biochemical defence responses in avocado fruit
Osondu, Hasten Aloy Alozie, Akinola, Stephen Abiola, Shoko, Tinotenda and Sivakumar, Dharini (2022). Phenolic compounds suppress anthracnose decay by enhancing antifungal properties and biochemical defence responses in avocado fruit. Journal of Plant Pathology, 104 (2), 711-720. doi: 10.1007/s42161-022-01085-3
2022
Journal Article
Influence of Lactic Acid Bacterium Strains on Changes in Quality, Functional Compounds and Volatile Compounds of Mango Juice from Different Cultivars during Fermentation
Cele, Nobahle P., Akinola, Stephen A., Manhivi, Vimbainashe E., Shoko, Tinotenda, Remize, Fabienne and Sivakumar, Dharini (2022). Influence of Lactic Acid Bacterium Strains on Changes in Quality, Functional Compounds and Volatile Compounds of Mango Juice from Different Cultivars during Fermentation. Foods, 11 (5) 682, 1-20. doi: 10.3390/foods11050682
2022
Journal Article
Food and nutrition security: underutilized plant and animal-based foods
Wright, Olivia R. L., Sivakumar, Dharini, Sultanbawa, Yasmina and Netzel, Michael E. (2022). Food and nutrition security: underutilized plant and animal-based foods. Frontiers in Nutrition, 8 821388, 821388. doi: 10.3389/fnut.2021.821388
2022
Journal Article
Variability of Bacterial Homopolysaccharide Production and Properties during Food Processing
Nabot, Marion, Guérin, Marie, Sivakumar, Dharini, Remize, Fabienne and Garcia, Cyrielle (2022). Variability of Bacterial Homopolysaccharide Production and Properties during Food Processing. Biology, 11 (2) 171, 1-16. doi: 10.3390/biology11020171
2022
Journal Article
Co-Ingestion of Natal Plums (Carissa macrocarpa) and Marula Nuts (Sclerocarya birrea) in a Snack Bar and Its Effect on Phenolic Compounds and Bioactivities
Manhivi, Vimbainashe E., Slabbert, Retha M. and Sivakumar, Dharini (2022). Co-Ingestion of Natal Plums (Carissa macrocarpa) and Marula Nuts (Sclerocarya birrea) in a Snack Bar and Its Effect on Phenolic Compounds and Bioactivities. Molecules, 27 (1) 310, 1-15. doi: 10.3390/molecules27010310
2022
Journal Article
Impact of different postharvest thermal processes on changes in antioxidant constituents, activity and nutritional compounds in sweet potato with varying flesh colour
Selokela, Lesego M., Laurie, Sunette M. and Sivakumar, Dharini (2022). Impact of different postharvest thermal processes on changes in antioxidant constituents, activity and nutritional compounds in sweet potato with varying flesh colour. South African Journal of Botany, 144, 380-388. doi: 10.1016/j.sajb.2021.09.009
2021
Journal Article
Extraction optimisation, hydrolysis, antioxidant properties and bioaccessibility of phenolic compounds in Natal plum fruit (Carissa Macrocarpa)
Seke, Faith, Manhivi, Vimbainashe E., Shoko, Tinotenda, Slabbert, Retha M., Sultanbawa, Yasmina and Sivakumar, Dharini (2021). Extraction optimisation, hydrolysis, antioxidant properties and bioaccessibility of phenolic compounds in Natal plum fruit (Carissa Macrocarpa). Food Bioscience, 44 (Part A) 101425, 101425. doi: 10.1016/j.fbio.2021.101425
2021
Journal Article
Cooking African pumpkin leaves (Momordica balsamina L.) by stir-frying improved bioactivity and bioaccessibility of metabolites—metabolomic and chemometric approaches
Mashiane, Petunia, Manhivi, Vimbainashe E., Shoko, Tinotenda, Slabbert, Retha M., Sultanbawa, Yasmina and Sivakumar, Dharini (2021). Cooking African pumpkin leaves (Momordica balsamina L.) by stir-frying improved bioactivity and bioaccessibility of metabolites—metabolomic and chemometric approaches. Foods, 10 (11) 2890, 2890. doi: 10.3390/foods10112890
2021
Journal Article
A practical chemometric approach using UPLC–QTOF/MS tool to investigate three varieties of pumpkin species and in vitro bioactivities
Mashitoa, Florence M., Shoko, Tinotenda, Slabbert, Retha M., Shai, Jerry L., Sultanbawa, Yasmina and Sivakumar, Dharini (2021). A practical chemometric approach using UPLC–QTOF/MS tool to investigate three varieties of pumpkin species and in vitro bioactivities. Food Bioscience, 43 101229, 101229. doi: 10.1016/j.fbio.2021.101229
2021
Journal Article
Changes in phenolics and antioxidant capacity during fermentation and simulated in vitro digestion of mango puree fermented with different lactic acid bacteria
Mashitoa, Florence M., Manhivi, Vimbainashe E., Akinola, Stephen A., Garcia, Cyrielle, Remize, Fabienne, Shoko, Tinotenda and Sivakumar, Dharini (2021). Changes in phenolics and antioxidant capacity during fermentation and simulated in vitro digestion of mango puree fermented with different lactic acid bacteria. Journal of Food Processing and Preservation, 45 (11) e15937, 1-13. doi: 10.1111/jfpp.15937
2021
Journal Article
A Comprehensive Review on the Impact of Edible Coatings, Essential Oils, and Their Nano Formulations on Postharvest Decay Anthracnose of Avocados, Mangoes, and Papayas
Sivakumar, Dharini, Tuna Gunes, Nurdan and Romanazzi, Gianfranco (2021). A Comprehensive Review on the Impact of Edible Coatings, Essential Oils, and Their Nano Formulations on Postharvest Decay Anthracnose of Avocados, Mangoes, and Papayas. Frontiers in Microbiology, 12 711092, 1-10. doi: 10.3389/fmicb.2021.711092
2021
Journal Article
Influence of different types of drying methods on color properties, phenolic metabolites and bioactivities of pumpkin leaves of var. Butternut squash (Cucurbita moschata Duchesne ex Poir)
Mashitoa, Florence M., Shoko, Tinotenda, Shai, Jerry L., Slabbert, Retha M., Sultanbawa, Yasmina and Sivakumar, Dharini (2021). Influence of different types of drying methods on color properties, phenolic metabolites and bioactivities of pumpkin leaves of var. Butternut squash (Cucurbita moschata Duchesne ex Poir). Frontiers in Nutrition, 8 694649, 1-9. doi: 10.3389/fnut.2021.694649
2021
Journal Article
Effect of freeze drying and simulated gastrointestinal digestion on phenolic metabolites and antioxidant property of the Natal plum (Carissa macrocarpa)
Seke, Faith, Manhivi, Vimbainashe E., Shoko, Tinotenda, Slabbert, Retha M., Sultanbawa, Yasmina and Sivakumar, Dharini (2021). Effect of freeze drying and simulated gastrointestinal digestion on phenolic metabolites and antioxidant property of the Natal plum (Carissa macrocarpa). Foods, 10 (6) 1420, 1-18. doi: 10.3390/foods10061420
2021
Journal Article
Changes in antinutrients, phenolics, antioxidant activities and in vitro α-glucosidase inhibitory activity in pumpkin leaves (Cucurbita moschata) during different domestic cooking methods
Mashitoa, Florence M., Manhivi, Vimbainashe, Slabbert, Retha M., Shai, Jerry L. and Sivakumar, Dharini (2021). Changes in antinutrients, phenolics, antioxidant activities and in vitro α-glucosidase inhibitory activity in pumpkin leaves (Cucurbita moschata) during different domestic cooking methods. Food Science and Biotechnology, 30 (6), 793-800. doi: 10.1007/s10068-021-00916-w
2021
Journal Article
Influence of Fermentation of Pasteurised Papaya Puree with Different Lactic Acid Bacterial Strains on Quality and Bioaccessibility of Phenolic Compounds during In Vitro Digestion
Mashitoa, Florence M., Akinola, Stephen A., Manhevi, Vimbainashe E., Garcia, Cyrielle, Remize, Fabienne, Slabbert, Retha. M. and Sivakumar, Dharini (2021). Influence of Fermentation of Pasteurised Papaya Puree with Different Lactic Acid Bacterial Strains on Quality and Bioaccessibility of Phenolic Compounds during In Vitro Digestion. Foods, 10 (5) 962, 1-20. doi: 10.3390/foods10050962
2021
Journal Article
Impact of household cooking techniques on colour, antioxidant and sensory properties of African pumpkin and pumpkin leaves
Mashiane, Petunia, Mashitoa, Florence M., Slabbert, Retha M. and Sivakumar, Dharini (2021). Impact of household cooking techniques on colour, antioxidant and sensory properties of African pumpkin and pumpkin leaves. International Journal of Gastronomy and Food Science, 23 100307, 1-7. doi: 10.1016/j.ijgfs.2021.100307
2020
Journal Article
Impact of household cooking techniques on African nightshade and Chinese cabbage on phenolic compounds, antinutrients, in vitro antioxidant, and β-glucosidase cctivity
Managa, Millicent G., Shai, Jerry, Thi Phan, Anh Dao, Sultanbawa, Yasmina and Sivakumar, Dharini (2020). Impact of household cooking techniques on African nightshade and Chinese cabbage on phenolic compounds, antinutrients, in vitro antioxidant, and β-glucosidase cctivity. Frontiers in Nutrition, 7 580550, 580550. doi: 10.3389/fnut.2020.580550
2020
Journal Article
Storage temperature and time changes of phenolic compounds and antioxidant properties of Natal plum (Carissa macrocarpa)
Mphaphuli, Tshudufhadzo, Slabbert, Retha M. and Sivakumar, Dharini (2020). Storage temperature and time changes of phenolic compounds and antioxidant properties of Natal plum (Carissa macrocarpa). Food Bioscience, 38 100772, 1-6. doi: 10.1016/j.fbio.2020.100772
2020
Journal Article
Phytochemical and nutritional quality changes during irrigation and postharvest processing of the underutilized vegetable African nightshade
Sivakumar, Dharini, Phan, Anh Dao Thi, Slabbert, Retha M., Sultanbawa, Yasmina and Remize, Fabienne (2020). Phytochemical and nutritional quality changes during irrigation and postharvest processing of the underutilized vegetable African nightshade. Frontiers in Nutrition, 7 576532, 1-12. doi: 10.3389/fnut.2020.576532
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
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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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
Media
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