
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
2018
Book Chapter
Influence of Photoselective Shade Nettings on Postharvest Quality of Vegetables
Sivakumar, Dharini and Jifon, John (2018). Influence of Photoselective Shade Nettings on Postharvest Quality of Vegetables. Preharvest Modulation of Postharvest Fruit and Vegetable Quality. (pp. 121-138) London, United Kingdom: Academic Press. doi: 10.1016/B978-0-12-809807-3.00005-6
2017
Journal Article
Deficit irrigation improves phenolic content and antioxidant activity in leafy lettuce varieties
Malejane, Dunsfort N., Tinyani, Peter, Soundy, Puffy, Sultanbawa, Yasmina and Sivakumar, Dharini (2017). Deficit irrigation improves phenolic content and antioxidant activity in leafy lettuce varieties. Food Science and Nutrition, 6 (2), 334-341. doi: 10.1002/fsn3.559
2017
Journal Article
Maintaining postharvest quality of cold stored ‘Hass’ avocados by altering the fatty acids content and composition with the use of natural volatile compounds – methyl jasmonate and methyl salicylate
Glowacz, Marcin, Bill, Malick, Tinyane, Peter P and Sivakumar, Dharini (2017). Maintaining postharvest quality of cold stored ‘Hass’ avocados by altering the fatty acids content and composition with the use of natural volatile compounds – methyl jasmonate and methyl salicylate. Journal of the Science of Food and Agriculture, 97 (15), 5186-5193. doi: 10.1002/jsfa.8400
2017
Journal Article
Phytochemical and nutritional properties of underutilised fruits in the southern African region
Nitcheu Ngemakwe, P. H., Remize, F., Thaoge, M. L. and Sivakumar, D. (2017). Phytochemical and nutritional properties of underutilised fruits in the southern African region. South African Journal of Botany, 113, 137-149. doi: 10.1016/j.sajb.2017.08.006
2017
Journal Article
Control of anthracnose disease via increased activity of defence related enzymes in ‘Hass’ avocado fruit treated with methyl jasmonate and methyl salicylate
Glowacz, Marcin, Roets, Nico and Sivakumar, Dharini (2017). Control of anthracnose disease via increased activity of defence related enzymes in ‘Hass’ avocado fruit treated with methyl jasmonate and methyl salicylate. Food Chemistry, 234, 163-167. doi: 10.1016/j.foodchem.2017.04.063
2017
Journal Article
Effect of thyme oil vapours exposure on phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX) genes expression, and control of anthracnose in ‘Hass’ and ‘Ryan’ avocado fruit
Bill, Malick, Korsten, Lise, Remize, Fabienne, Glowacz, Marcin and Sivakumar, Dharini (2017). Effect of thyme oil vapours exposure on phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX) genes expression, and control of anthracnose in ‘Hass’ and ‘Ryan’ avocado fruit. Scientia Horticulturae, 224, 232-237. doi: 10.1016/j.scienta.2017.06.026
2017
Journal Article
The role of wild fruits and vegetables in delivering a balanced and healthy diet
Bvenura, Callistus and Sivakumar, Dharini (2017). The role of wild fruits and vegetables in delivering a balanced and healthy diet. Food Research International, 99, 15-30. doi: 10.1016/j.foodres.2017.06.046
2017
Journal Article
Bio-sanitation treatment using essential oils against E. coli O157:H7 on fresh lettuce
Mouatcho, Joel Claude, Tzortzakis, Nikolaos, Soundy, Puffy and Sivakumar, Dharini (2017). Bio-sanitation treatment using essential oils against E. coli O157:H7 on fresh lettuce. New Zealand Journal of Crop and Horticultural Science, 45 (3), 165-174. doi: 10.1080/01140671.2016.1269813
2017
Journal Article
Nitrogen application and leaf harvesting improves yield and nutritional quality of beetroot
Mampa, Salfina S., Maboko, Martin M., Soundy, Puffy and Sivakumar, Dharini (2017). Nitrogen application and leaf harvesting improves yield and nutritional quality of beetroot. HortTechnology, 27 (3), 337-343. doi: 10.21273/HORTTECH03599-16
2017
Journal Article
Shelf life extension of fresh fruit and vegetables by chitosan treatment
Romanazzi, Gianfranco, Feliziani, Erica, Baños, Silvia Bautista and Sivakumar, Dharini (2017). Shelf life extension of fresh fruit and vegetables by chitosan treatment. Critical Reviews in Food Science and Nutrition, 57 (3), 579-601. doi: 10.1080/10408398.2014.900474
2017
Journal Article
Effect of thyme oil vapour exposure on the brown rot infection, phenylalanine ammonia-lyase (PAL) activity, phenolic content and antioxidant activity in red and yellow skin peach cultivars
Khumalo, Kenneth N., Tinyane, Peter, Soundy, Puffy, Romanazzi, Gianfranco, Glowacz, Marcin and Sivakumar, Dharini (2017). Effect of thyme oil vapour exposure on the brown rot infection, phenylalanine ammonia-lyase (PAL) activity, phenolic content and antioxidant activity in red and yellow skin peach cultivars. Scientia Horticulturae, 214, 195-199. doi: 10.1016/j.scienta.2016.11.044
2016
Journal Article
Decay control in the postharvest system: Role of microbial and plant volatile organic compounds
Mari, Marta, Bautista-Baños, Silvia and Sivakumar, Dharini (2016). Decay control in the postharvest system: Role of microbial and plant volatile organic compounds. Postharvest Biology and Technology, 122, 70-81. doi: 10.1016/j.postharvbio.2016.04.014
2016
Journal Article
Phytochemicals and Overall Quality of Leafy Lettuce (Lactuca sativa L.) Varieties Grown in Closed Hydroponic System
Mampholo, Bevly M., Maboko, Martin M., Soundy, Puffy and Sivakumar, Dharini (2016). Phytochemicals and Overall Quality of Leafy Lettuce (Lactuca sativa L.) Varieties Grown in Closed Hydroponic System. Journal of Food Quality, 39 (6), 805-815. doi: 10.1111/jfq.12234
2016
Journal Article
Lettuce (Lactuca sativa L.) growth, yield and quality response to nitrogen fertilization in a non-circulating hydroponic system
Mahlangu, R. I.S., Maboko, M. M., Sivakumar, D., Soundy, P. and Jifon, J. (2016). Lettuce (Lactuca sativa L.) growth, yield and quality response to nitrogen fertilization in a non-circulating hydroponic system. Journal of Plant Nutrition, 39 (12), 1766-1775. doi: 10.1080/01904167.2016.1187739
2016
Conference Publication
Variation in fruit quality in HTSP-5 green bell pepper grown under different photo-selective nets
Mashabela, N. M., Sivakumar, D. and Soundy, P. (2016). Variation in fruit quality in HTSP-5 green bell pepper grown under different photo-selective nets. XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes, Brisbane, QLD Australia, 17 August 2014. Leuven, Belgium: International Society for Horticultural Science. doi: 10.17660/ActaHortic.2016.1123.9
2016
Journal Article
Maintaining overall quality of fresh traditional leafy vegetables of Southern Africa during the postharvest chain
Mampholo, Bevly M., Sivakumar, Dharini and Thompson, A. Keith (2016). Maintaining overall quality of fresh traditional leafy vegetables of Southern Africa during the postharvest chain. Food Reviews International, 32 (4), 400-416. doi: 10.1080/87559129.2015.1094817
2016
Journal Article
Different defense responses and brown rot control in two Prunus persica cultivars to essential oil vapours after storage
Cindi, Meluci David, Soundy, Puffy, Romanazzi, Gianfranco and Sivakumar, Dharini (2016). Different defense responses and brown rot control in two Prunus persica cultivars to essential oil vapours after storage. Postharvest Biology and Technology, 119, 9-17. doi: 10.1016/j.postharvbio.2016.04.007
2016
Journal Article
Vapour or dipping applications of methyl jasmonate, vinegar and sage oil for pepper fruit sanitation towards grey mould
Tzortzakis, Nikos, Chrysargyris, Antonios, Sivakumar, Dharini and Loulakakis, Kostas (2016). Vapour or dipping applications of methyl jasmonate, vinegar and sage oil for pepper fruit sanitation towards grey mould. Postharvest Biology and Technology, 118, 120-127. doi: 10.1016/j.postharvbio.2016.04.004
2016
Journal Article
Spectral quality of photo-selective nets improves phytochemicals and aroma volatiles in coriander leaves (Coriandrum sativum L.) after postharvest storage
Buthelezi, Millicent N. Duduzile, Soundy, Puffy, Jifon, John and Sivakumar, Dharini (2016). Spectral quality of photo-selective nets improves phytochemicals and aroma volatiles in coriander leaves (Coriandrum sativum L.) after postharvest storage. Journal of Photochemistry and Photobiology B: Biology, 161, 328-334. doi: 10.1016/j.jphotobiol.2016.05.032
2016
Journal Article
Variety-specific responses of lettuce grown under the different-coloured shade nets on phytochemical quality after postharvest storage
Ntsoane, Lucia L.M., Soundy, Puffy, Jifon, John and Sivakumar, Dharini (2016). Variety-specific responses of lettuce grown under the different-coloured shade nets on phytochemical quality after postharvest storage. Journal of Horticultural Science and Biotechnology, 91 (5), 520-528. doi: 10.1080/14620316.2016.1178080
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
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
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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