Skip to menu Skip to content Skip to footer
Dr Dharini Sivakumar
Dr

Dharini Sivakumar

Email: 

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

194 works between 2005 and 2025

121 - 140 of 194 works

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

Influence of Photoselective Shade Nettings on Postharvest Quality of Vegetables

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

Deficit irrigation improves phenolic content and antioxidant activity in leafy lettuce varieties

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

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

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

Phytochemical and nutritional properties of underutilised fruits in the southern African region

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

Control of anthracnose disease via increased activity of defence related enzymes in ‘Hass’ avocado fruit treated with methyl jasmonate and methyl salicylate

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

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

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

The role of wild fruits and vegetables in delivering a balanced and healthy diet

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

Bio-sanitation treatment using essential oils against E. coli O157:H7 on fresh lettuce

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

Nitrogen application and leaf harvesting improves yield and nutritional quality of beetroot

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

Shelf life extension of fresh fruit and vegetables by chitosan treatment

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

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

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

Decay control in the postharvest system: Role of microbial and plant volatile organic compounds

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

Phytochemicals and Overall Quality of Leafy Lettuce (Lactuca sativa L.) Varieties Grown in Closed Hydroponic System

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

Lettuce (Lactuca sativa L.) growth, yield and quality response to nitrogen fertilization in a non-circulating hydroponic system

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

Variation in fruit quality in HTSP-5 green bell pepper grown under different photo-selective nets

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

Maintaining overall quality of fresh traditional leafy vegetables of Southern Africa during the postharvest chain

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

Different defense responses and brown rot control in two Prunus persica cultivars to essential oil vapours after storage

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

Vapour or dipping applications of methyl jasmonate, vinegar and sage oil for pepper fruit sanitation towards grey mould

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

Spectral quality of photo-selective nets improves phytochemicals and aroma volatiles in coriander leaves (Coriandrum sativum L.) after postharvest storage

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

Variety-specific responses of lettuce grown under the different-coloured shade nets on phytochemical quality after postharvest storage

Funding

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

Before you email them, read our advice on how to contact a supervisor.

Supervision history

Current supervision

  • 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

  • Doctor Philosophy

    Morphological, physicochemical, phytochemical, nutritional, and bioactivities of different Persoonia fruits

    Associate Advisor

    Other advisors: Dr Michael Netzel, Professor Yasmina Sultanbawa

  • Doctor Philosophy

    Improving the Shelf-life of Salmon Fillets Using an Advanced Nanoencapsulation Technology

    Associate Advisor

    Other advisors: Dr Run Zhang, Professor Yasmina Sultanbawa

  • 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

Enquiries

For media enquiries about Dr Dharini Sivakumar's areas of expertise, story ideas and help finding experts, contact our Media team:

communications@uq.edu.au