Dr Gabi Netzel

Advance Qld Postdoc Research Fellow

Centre for Animal Science
Queensland Alliance for Agriculture and Food Innovation
g.netzel@uq.edu.au
+61 7 344 32480

Overview

My field of expertise is biochemistry and metabolism of dietary phytonutrients and plant toxins. I graduated at the Justus-Liebig University Giessen, Germany (Master and PhD) before I joined QAAFI in April 2011. In both, Master and PhD thesis I was focusing on bioactivity and bioavailability of polyphenols. I continued working in this area initially in a professional role before moving into a postdoctoral position to explore the area of metabolism of plant toxins in cattle in particular indospicine, an arginine analogue which is predominantly found in a legume called Indigofera and which is one of the main fodder for cattle in the arid regions of central Australia. In 2016 I have been awarded an Advance Queensland Postdoctoral Fellowship to investigate the potential development of a ruminal inoculum against the detrimental effects of indospicine.

Qualifications

  • Doctor of Household Sciences and Nutritional Sci, Justus Liebig University Giessen

Publications

View all Publications

Supervision

View all Supervision

Publications

Book Chapter

  • Netzel, M., Fanning, K., Netzel, G., Frank, T., Zabaras, D., Russell, D. and Stanley, R. (2012). Urinary pharmacokinetics of Queen Garnet plum anthocyanins in healthy human subjects. In Bhimanagouda S Patil (Ed.), Emerging Trends in Dietary Components for Preventing and Combating Disease (pp. 375-392) Washington DC, United States: ACS Publications. doi:10.1021/bk-2012-1093.ch021

  • Allmann, S., Strass, G., Kranl, K., Frank, T., Bitsch, I., Bitsch, R. and Netzel, M. (2005). Bioactivity and bioactive compounds of seabuckthorn fruit juice. In Virendra Singh, Yang B, Kallio H, Bala M, Sawhney RC, Gupta RK, Moersel JT, Rongsen L and Tolkachev ON (Ed.), Seabuckthorn (Hippophae L.): A Multipurpose Wonder Plant, Vol. II: Biochemistry and Pharmacology (pp. 402-412) New Dehli, India: Daya Publishing House.

  • Netzel, M., Allmann, S., Strass, G., Kranl, K., Aman, R., Schieber, A., Carle, R., Bitsch, I. and Bitsch, R. (2005). Stabilty of hydrophilic and lipophilic antioxidants of seabuckthorn under different storage conditions. In Singh, V., Yang, B., Kallio, H., Bala, M., Sawhney, R. C., Gupta, R. K., Moersel, J. T., Rongsen, L. and Tolkachev, O. N. (Ed.), Seabuckthorn (Hippophae L.): A Multipurpose Wonder Plant, Vol. II: Biochemistry and Pharmacology (pp. 331-336) New Dehli, India: Daya Publishing House.

  • Netzel, M., Strass, G., Janssen, M., Bitsch, I. and Bitsch, R. (2000). Bioavailability of blackcurrant anthocyanins in humans. In Dietary Anticarcinogens and Antimutagens (pp. 76-79) Norwich, England: Elsevier. doi:10.1533/9781845698188.2.76

Journal Article

Conference Publication

  • Chua, E., Eltanahy, E., Dal'Molin, C., Netzel, M., Netzel, G., Thomas-Hall, S. and Schenk, P. (2017). A Biorefinery of Nannochloropsis for the Sustainable Production of Eicosapentaenoic Acid and High-Value Protein Supplements. In: Book of poster abstracts. TropAg2017, International Tropical Agriculture Conference, Brisbane, Qld, Australia, (109-109). 20-22 November 2017.

  • Chhim, P., Phan, A. D. T., Netzel, G., Netzel, M. E. and Sultanbawa, Y. (2017). Functional Powder from Australian-Grown White, Yellow, and Red Onion Tissues. In: Book of poster abstracts. TropAg2017, International Tropical Agriculture Conference, Brisbane, Qld, Australia, (108-108). 20-22 November 2017.

  • Phan, A. D. T., Netzel, G., Chhim, P., Netzel, M. E. and Sultanbawa, Y. (2017). Phytochemical Characteristics and Bioactive Properties of Australian Garlic Cultivars. In: Book of poster abstracts. TropAg2017, International Tropical Agriculture Conference, Brisbane, Qld, Australia, (116-116). 20-22 November 2017.

  • Hong, H., Netzel, M., Netzel, G. and O'Hare, T. J. (2017). The Effect of Physiological Maturity on the Anthocyanin Profile of Purple Sweet Corn. In: Book of poster abstracts. TropAg2017, International Tropical Agriculture Conference, Brisbane, Qld, Australia, (119-119). 20-22 November 2017.

  • Sultan, Saira, Giles, Cindy, Netzel, Gabriele, Osborne, Simone, Netzel, Michael and Fletcher, Mary (2016). Effect of thermal processing on indospicine residues in meat and its digestive fate in the human gastrointestinal tract in vitro. In: International Conference on Global Trends in Safe & Healthy Food, Faisalabad, Pakistan, (38-38). 15-16 February, 2016.

  • Netzel, G., Tan, E. T. T., Netzel, M. and Fletcher, M. (2016). Functional compounds in plants – Indospicine (the “Bad”) and Anthocyanins (the “Good”). In: 1st Queensland Annual Chemistry Symposium, St. Lucia, QLD, Australia, (36-36). 25 November 2016.

  • Sultan, S., Giles, C., Netzel, G., Osborne, S., Netzel, M. and Fletcher, M. (2016). In vitro digestion of indospicine-contaminated camel meat. In: 1st Queensland Annual Chemistry Symposium, St. Lucia, QLD, Australia, (85-85). 25 November 2016.

  • Sultan, S., Giles, C., Netzel, G., Osborne, S., Netzel, M. and Fletcher, M. (2016). In vitro digestion of indospicine-contaminated camel meat cooked by microwave. In: 1st Food Chemistry Conference, Shaping the Future of Food Quality, Health and Safety, Amsterdam, The Netherlands, (P1.4.17). 30 October – 1 November 2016.

  • Sultan, S., Netzel, G., Osborne, S., Addepalli, R., Chen, W., Netzel, M. and Fletcher, M. (2016). Indospicine toxicity in human intestinal cell lines. In: 1st Food Chemistry Conference, Shaping the Future of Food Quality, Health and Safety, Amsterdam, The Netherlands, (1.4.18). 30 October – 1 November 2016.

  • Netzel, Michael, Lim, Jane, Netzel, Gabriele, Cruickshank, Alan, Godwin, Ian, Jordan, David and Fox, Glen (2016). Sorghum – an important cereal for human health. In: Abstract Booklet. The Australian Summer Grains Conferences (ASGC) 2016, Gold Coast, QLD Australia, (16-16). 7-9 March, 2016.

  • Striegel, L., Netzel, M., Netzel, G. and Rychlik, M. (2016). Validation of stable isotope dilution assays for the quantitation of folates in strawberries. In: 1st Queensland Annual Chemistry Symposium, St. Lucia, QLD, Australia, St. Lucia, QLD, Australia, (84-84). 25 November 2016.

  • Sultan S, Netzel G, Osborne S, Netzel M and Fletcher M (2015). In vitro digestion models for measuring Indospicine bioaccessibility and stability in Camel meat.. In: Abstracts. Tropical Agriculture Conference, Brisbane Australia, (66-67). 16-18 November 2015.

  • Netzel M, Lim J, Netzel G, Cruickshank A and Fox G (2015). Screening Queensland grown sorghum for health promoting compounds.. In: Abstracts. Tropical Agriculture Conference, Brisbane Australia, (183-184). 16-18 November 2015.

  • Mikkelsen, Deirdre, Netzel, Gabriele, Chan, Chui Ying, Gidley, Michael and Williams, Barbara (2014). Bacterial Cellulose as a Model System to Study In Vitro Fermentability of Black Carrot Phytonutrients. In: Rowett-INRA 2014 Gut Microbiology: from sequence to function, Aberdeen, Scotland, UK, (). 16-19 June 2014.

  • Netzel, Michael, Bobrich, Anna, Topp, Bruce, Russell, Dougal, Netzel, Gabi, Flanagan, Bernadine, Gidley, Michael and Fanning, Kent (2014). Biofortified produce – Queen Garnet a new high anthocyan plum. In: 38th Annual Scientific Meeting of the Nutrition Society of Australia, Hobart, TAS, Australia, (20-20). 26-28 November 2014. doi:10.1016/j.jnim.2014.10.065

  • Netzel, G., Mikkelsen, D., Flanagan, B., Netzel, M., Gidley, M. J. and Williams, B. (2014). Modulation of in vitro fermentation by polyphenol-rich black carrot fractions. In: Abstracts of the 29th International Horticultural Congress. 29th International Horticultural Congress, Brisbane, QLD, Australia, (02677-02677). 17-22 September 2014.

  • Low, Dorrain, Williams, Barbara, Netzel, Gabi, Netzel, Michael, D'Arcy, Bruce and Gidley, Michael (2014). Polyphenol fermentation and metabolism in vitro. In: Polyphenols Communications 2014. ICP2014 Proceedings. ICP2014: XXVIIth International Conference on Polyphenols & The 8th Tannin Conference, Nagoya, Japan, (375-376). 2-6 September, 2014.

  • Netzel, G., Mikkelsen, D., Flanagan, B., Netzel, M., Gidley, M. J. and Williams, B. A. (2013). Black carrot polyphenols and their effect on plant cell wall fermentability. In: NSA 2013 ASM: Proceedings of the Nutrition Society of Australia (2013). NSA NSNZ 2013 Joint Annual Scientific Meeting: 37th Annual Scientific Meeting of the Nutrition Society of Australia in conjunction with the Nutrition Society of New Zealand, Brisbane, QLD, Australia, (653-653). 4-6 December, 2013.

  • Fanning, K., Fredericks, C., Netzel, G, Gidley, M. J., Herrington, M. and Netzel, M. (2013). Breeding anthocyanin rich strawberries for a healthy diet. In: Proceedings of the 5th International Symposium on human health effects of fruits and vegetables (FAV 2012). 5th International Symposium on human health effects of fruits and vegetables (FAV 2012), Dharwad, India, (99-99). 6-10 November 2012.

  • Netzel, M., Fanning, K., Netzel, G., Edwards, D., Trloar, T., Stanley, Russell, D. and Topp, B. (2013). Breeding high anthocyanin plums for potential health functionality. In: Proceedings of the 5th International Symposium on human health effects of fruits and vegetables (FAV Health 2012). 5th International Symposium on human health effects of fruits and vegetables (FAV Health 2012), Dharwad, India, (37-37). 6-10 November 2012.

  • Padayachee, A., Netzel, G., Netzel, M., Day, L., Mikkelsen, D. and Gidley, M. J. (2013). Fibre interactions with polyphenols and implications for gut release. In: NSA 2013 ASM: Proceedings of the Nutrition Society of Australia (2013). NSA NSNZ 2013 Joint Annual Scientific Meeting: 37th Annual Scientific Meeting of the Nutrition Society of Australia in conjunction with the Nutrition Society of New Zealand, Brisbane, QLD, Australia, (600-600). 4-6 December, 2013.

  • Fanning, K., Edwards, D., Netzel, M., Stanley, R., Netzel. G., Russell, D. and Topp, B. (2013). Increasing anthocyanin content in queen garnet plum and correlations with in-field measures. In: Proceedings of the 10th International Symposium on Plum and Prune Genetics, Breeding and Pomology. 10th International Symposium on Plum and Prune Genetics, Breeding and Pomology, Davis, CA, United States, (97-104). 20-26 May 2012.

  • Padayachee, Anneline, Netzel, G., Netzel, M., Mikkelsen, D. and Gidley, M. (2013). Plant fibre structural inferences on polyphenol release. In: Food Structure, Digestion and Health: 2nd International Conference, Melbourne, VIC, Australia, (47-47). 21-24 October, 2013.

  • Mikkelsen, D., Netzel, G. A., Williams, B. A. and Gidley, M. J. (2012). Bacterial cellulose (BC): a model system to study in vitro fermentability of plant cell wall analogues. In: 8th INRA-Rowett Symposium on Gut Microbiology: Gut microbiota: friend or foe?. 8th INRA-Rowett Symposium on Gut Microbiology, Clermont-Ferrand, France, (116-116). 17 - 20 June 2012.

  • Mikkelsen, D., Netzel, G. A., Williams, B. A. and Gidley, M. J. (2012). In vitro fermentability of purple carrot phytonutrients and effects on large intestinal microflora. In: 8th INRA-Rowett Symposium on Gut Microbiology, Clermont-Ferrand, France, (). 17 - 22 June 2012.

  • Netzel, Michael, Fanning, Kent, Netzel, Gabriele, Houlihan, Avis, Zabaras, Dimitrios and Stanley, Roger (2012). Polyphenol metabolites in biological fluids as potential biomarkers to assess their dietary intake. In: Glenn Graham, Michael Netzel, Trudy Graham, Mary Fletcher, Gloria Karagianis, Cindy Giles, Ujang Tinggi and Pieter Scheelings, Technology for Food Quality: Proceedings 12th Government Food Analysts Conference. 12th Government Food Analysts Conference, Brisbane, Australia, (76-84). 22-24 February 2011.

  • Rychlik, Michael, Moench, Sabine, Netzel, Michael, Netzel, Gabriele, Oehrvik, Veronica, Buettner, Barbara, Lundin, Eva and Witthoeft, Cornelia M. (2012). Stable isotope dilution assays as tools for assessing folate bioavailability. In: American Chemical Society 243rd National Meeting and Exposition, San Diego, United States, (93-93). 25-29 March 2012.

  • Netzel, M, Fanning, K, Netzel, G, Houlihan, A, Zabaras, D and Stanley, R (2011). Polyphenol metabolites in biological fluids as potential biomarkers to assess their dietary intake. In: Proceedings of the 12th Government Food Analysts Conference. 12th Government Food Analysts’ Conference, Technology for Food Quality, Coopers Plains, QLD, Australia, (128-128). 22-24 February 2012.

  • Padayachee, A., Netzel, G., Netzel, M., Day, L., Mikkelsen, D. and Gidley, M. (2011). The plant cell wall: Friend or foe to anthocyanin bioaccessibility?. In: Australian Food Science Summer School (1st, AIFST, 2011), St. Lucia, QLD, Australia, (10-10). 9-11 February 2011.

  • Netzel, M., Netzel, G., Addepalli, R., Seymour, R. and Day, L. (2009). Methods to determine the bioavailability of phytochemicals. In: Proceedings of the Tropical Fruits in Human Nutrition and Health Conference 2008. Tropical Fruits in Human Nutrition and Health Conference, Gold Coast, QLD, Australia, (98-110). 8-11 November 2008.

  • Bitsch, R., Netzel, M., Netzel, G., Ruhlig, K., Dietrich, H., Ott, U. and Bitsch, I. (2008). Comparative bioavailability and bioactivity of antioxidant polyphenols from apple products. In: Polyphenols Communications. XXIV International Conference on Polyphenols, Salamanca, Spain, (773-774). 08-11 July 2008.

  • Bitsch, I., Netzel, M., Netzel, G., Ruhlig, K., Ott, U., Thielen, C., Dietrich, H. and Bitsch, R. (2008). Consumption of apples, apple juice and apple juice extract rich in polyphenols on urate concentration in plasma and urine of human volunteers. In: Polyphenols Communications. XXIV International Conference on Polyphenols, Salamanca, Spain, (675-676). 8-11 July 2008.

  • Bitsch. R., Netzel, M., Netzel, G., Krotz, C., Schwarz, M., Dietrich, H., Kammerer, D. R., Schieber, A., Carle, R., Ott, U., Frank, T. and Bitsch, I. (2006). A human study to evaluate bioefficacy of fruit juices to increase antioxidant activities in body fluids. In: Polyphenols Communications. XXIII International Congress on Polyphenols, Winnipeg, Manitoba, Canada, (103-104). 22-25 August 2006.

  • Netzel, M., Netzel, G., Tian, Q., Schwartz, S. and Konczak, I. (2006). Antioxidant potential and characteristic of anthocyanin-rich extracts of selected native Australian fruits. In: R. Carle, A. Schieber and F. C. Stintzing , Pigments in Food: A Challenge to Life Sciences. Pigments in Food: A Challenge to Life Sciences, Stuttgart-Hohenheim, Germany, (122-124). 9-12 October 2006.

  • Netzel, G., Netzelm, M., Frank, T., Kammerer, D. R., Schieber, A., Carle, R., Bitsch, I., Bitsch, R. and Konczak, I. (2006). Antiproliferation activity and metabolism of black carrot anthocyanins. In: R. Carle, A. Schieber and F. C. Stintzing , Pigments in Food A Challenge to Life Sciences. 4th International Congress on Pigments in Food, Stuttgart-Hohenheim, Germany, (125-127). 9-12 October 2006.

  • Netzel, M., Netzel, G., Bitsch, I., Bitsch, R., Frank, T., Ott, U., Kammerer, D. R., Schieber, A., Carle, R., Thielen, C., Dietrich, H. and Christian, B. (2006). Excretion of antioxidant compounds in human urine following consumption of apple juice and berry juice. In: Euro Food Chem XIII, Hamburg, Germany, (89-89). 21-23 September 2005.

  • Netzel, G., Netzel, M., Krotz, C., Frank, T., Thielen, C., Dietrich, H., Ott, U., Kammerer, D. R., Schieber, A., Carle, R., Bitsch, I. and Bitsch, R. (2006). Hochwertige Fruchtsaefte als natuerliche Quelle fuer bioactive Substanzen. In: Proceedings of the German Nutrition Society 8. 43.Wissenschaftliche Kongress der Deutschen Gesellschaft fuer Ernaehrung (DGE), Stuttgart-Hohenheim, Germany, (58-59). 09-10 March 2006.

  • Bitsch, I., Netzel, M., Netzel, G., Allmann, S., Frank, T., Kammerer, D. R., Schieber, A., Carle, R. and Bitsch, R. (2006). Urinary excretion of bioactive compounds and several of their metabolites after consumption of sea buckthorn juice in young healthy volunteers. In: Polyphenols Communications. XXIII International Congress on Polyphenols, Winnipeg, Manitoba, Canada, (487-488). 22-25 August 2006.

  • Netzel, M., Netzel, G., Krotz, C., Frank, T., Thielen, C., Dietrich, H., Ott, U., Kammerer, D. R., Schieber, A., Carle, R., Bitsch, I. and Bitsch, R. (2005). Bioverfuegbarkeit von Antioxidantien aus naturtruebem Apfelsaft und Mehrfruchtsaft. In: Innovationspotentiale in der Lebensmittelproduktion – Aktuelle Beiträge aus FEI-Projekten, Dokumantation der 63. FEI-Diskussionstagung 2005. FEI-Diskussionstagung 2005, Berlin, Germany, (118-118). 13-14 September 2005.

  • Bitsch, I., Netzel, M., Netzel, G., Carle, E. and Bitsch, R. (2005). Comparing antioxidant properties of fruit juices with in vitro and in vivo assays. In: Bio-Profit – COST 926 Conference 2005 - Proceedings. Bio-Profit – COST 926 Conference 2005, Egmond aan Zee, The Netherlands, (37-37). 12-13 October 2005.

  • Netzel, M., Netzel, G., Bitsch, I., Bitsch, R., Frank, T., Ott, U., Kammerer, D. R., Schieber, A., Carle, R., Thielen, C., Dietrich, H. and Christian, B. (2005). Excretion of antioxidant compounds in human urine following consumption of apple juice and berry juice. In: EURO FOOD CHEM XIII - Abstract Volume. EURO FOOD CHEM XIII, Hamburg, Germany, (172-172). 21-23 September 2005.

  • Netzel, M., Netzel, G., Rossberg, A., Krotz, C., Schwarz, M., Bitsch, I., Thielen, C., Dietrich, H., Kammerer, D. R., Schieber, A., Carle, R., Frank, T. and Bitsch, R. (2005). Excretion of polyphenols and metabolites in human urine following consumption of apple juice. In: Schubert, R., Flachowsky, G., Jahreis, G. and Bitsch, R., Vitamins and Additives in the Nutrition of Man and Animal. Vitamins and Additives in the Nutrition of Man and Animal, Jena, Germany, (273-276). 28-29 September 2005.

  • Netzel, M., Stintzing, F. C., Quaas, D., Strass, G., Carle, R., Bitsch, R., Bitsch, I. and Frank, T. (2005). Renal excretion of antioxidative constituents from red beet in humans. In: Pigments in Food: More than colours. 3rd International Congress on Pigments in Food, Quimper, France, (271-273). Jun 14-17 2004.

  • Bitsch, R., Netzel, M., Netzel, G., Thielen, C., Dietrich, H., Kammerer, D. R., Schieber, A., Carle, R., Frank, T. and Bitsch, I. (2005). Studies on the bioactivity of phenolics in fruit juices. In: 8th International Symposium, Authenticity and Safety of Fruit-Based Products and Beverages - Abstracts. 8th International Symposium, Authenticity and Safety of Fruit-Based Products and Beverages 2005, Nantes, France, (CD-Rom). 19-20 October 2005.

  • Netzel, M., Strass, G., Herbst, M., Dietrich, H., Bitsch, R., Bitsch, I. and Frank, T. (2005). The excretion and biological antioxidant activity of elderberry antioxidants in healthy humans. In: Pigments in Food: More than colours. 3rd International Congress on Pigments in Food, Quimper France, (286-287). Jun 14-17 2004.

  • Netzel, M., Netzel, G., Bitsch, I., Kler, A., Kriesl, E., Kammerer, D. R., Schieber, A. and Carle, R. (2005). Urinary excretion of antioxidants following consumption of Hibiscus sabdariffa L. extract. In: Schubert, R., Flachowsky, G., Jahreis, G. and Bitsch, R., Vitamins and Additives in the Nutrition of Man and Animal 2005. Vitamins and Additives in the Nutrition of Man and Animal, Jena, Germany, (248-251). 28-29 September 2005.

  • Netzel, M., Frank, T., Strass, G., Quaas, D., Stintzing, F. C., Carle, R., Bitsch, R. and Bitsch, I. (2004). A pharmacokinetic evaluation of the urinary excretion of dietary betalains following consumption of red beet juice. In: Dufosse, L., Pigments in Food: More than colours. Third International Congress on Pigments in Food, Quimper France, (271-273). 14-17 June 2004.

  • Strass, G., Netzel, M., Frank, T., Dietrich, H., Bitsch, I. and Bitsch, R. (2004). Dose-dependent urinary excretion of dietary anthocyanins following ingestion of elderberry juice. In: L. Dufosse , Pigments in Food More than Colours. Pigments in Food More than Colours, Quimper, France, (286-287). 14-17 June 2004.

  • Netzel, M., Strass, G., Allmann, S., Kranl, K., Aman, R., Schieber, A., Carle, R., Bitsch, I. and Bitsch, R. (2003). Stability of hydrophilic and lipophilic antioxidants in seabuckthorn juices and nectar under different storage conditions. In: J.T. Moersel and S. Thies , Seabuckthorn – a Resource of Health, a Challenge to Modern Technology. 1st International Seabuckthorn Association (ISA) Conference, Berlin, Germany, (186-191). 12-23 September 2003.

  • Bitsch, R., Netzel, M., Strass, G., Koenitz, R., Christmann, M. and Bitsch, I. (2002). Anthocyanins and metabolites in human urine and plasma after red wine ingestion. In: El Hadrami I, Polyphenols Communications. 21. International Conference on Polyphenols, Marrakech, Morocco, (273-274). 9-12 September 2002.

  • Birtsch, I., Netzel, M., Strass, G., Carle, E. and Bitsch, R. (2002). Bioavailability of the overall antioxidant capacity of fruit juices in humans. In: Polyphenols Communications. 21. International Conference on Polyphenols, Marrakech, Morocco, (185-186). 09-12 September 2002.

  • Netzel, Michael, Strass, Gabriele, Kaul, Caroline, Bitsch, Irmgard, Dietrich, Helmut and Bitsch, Roland (2002). In vivo antioxidative capacity of a composite berry juice. In: Proceedings of 5th Karlsruhe Nutrition Symposium. 5th Karlsruhe Nutrition Symposium, Karlsruhe, Germany, (76-76). 22-24 October 2000.

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

Completed Supervision