SUBJECT GROUP CONSUMER SCIENCES

Prof Daleen van der Merwe

Position               Associate-professor

E-mail                 daleen.vandermerwe@nwu.ac.za

Telephone          +27-(0)18-299 2476

Office                  Building F15, Office 110

Short CV

• B.Sc.Agric. (Cum Laude ) at the University of the Free State
• B.Sc.Agric.Hons. (Cum Laude ) at the University of the Free State
• M.Sc.Agric. in Food Science at the University of the Free State entitled: "Determination of the malting and milling performance of sorghum cultivars"
• Ph.D. in Food Science at the University of the Free State entitled: "Development and application of a small-scale canning procedure for the evaluation of small white beans (Phaseolus vulgaris)."   

NRF rating

Y2

Involvement in professional societies:

• 2000-2004 Suid-Afrikaanse Vereniging vir Gewasproduksie  - member
• 2005-present South African Association of Food Science and Technology  - Profesional member
• 2006-present South African Association for Family Ecology and Consumer Sciences  - member

Specialisation

Grain quality with the specific focus on the milling quality of white maize, the milling and malting quality of sorghum and the canning quality of dry beans.

Focus on consumers' behaviour with regard to food- and textile product labels.

Modules

Post graduate

• VNAM 671 (Research methods and Scientific writing skills)
• VERB 876 (Consumer behaviour and research methodology)  

Publications

Scientific

WENZEL, W.G., VAN LOGGERENBERG, M. & ORDON, F. 2001. Journal of applied botany / Angewande botanik, 75:43-45.

VAN DEN BERG, J., PRETORIUS, A.J. & VAN LOGGERENBERG. M. 2003. Effect of leave feeding by Melanaphis sacchari (Zehntner) (Homoptera: Aphididae), on sorghum grain quality. South African journal of plant and soil, 20:41-43.

VAN LOGGERENBERG, M. & PRETORIUS, A.J. 2004. Sorghum malting as affected by availability of suitable cultivars. South African journal of plant and soil, 21:192-195.

VAN LOGGERENBERG, M. & PRETORIUS, A.J. 2005. Determining oil and protein content of striped- and black- sunflower seed using NIR technology. Communications in soil science and plant analysis, 36:729-741.

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS, A.J. 2005. Determining milling performance of sorghum cultivars by means of abrasive decortication and roller milling techniques. South African journal of plant and soil, 22:229-235

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS, A.J. 2006. Evaluation and standardization of small-scale canning methods and evaluation procedures for small white beans (Phaseolus vulgaris L.) canned in tomato sauce. Journal of the science of food and agriculture,86:1115-1124.

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS, A.J. 2006. Comparison of the canning quality of small white beans (Phaseolus vulgaris L.) canned in tomato sauce by a small-scale and an industrial method. Journal of the science of food and agriculture,86:1046-1056.

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS, A.J. 2007.  Using canonical variate analysis to group small white bean cultivars canned in tomato sauce according to their canning quality. South African journal of plant and soil, 24(2).

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS, A.J. 2008. A canning quality model for small white bean lines selected for breeding (Phaseolus vulgaris L.). South African journal of plant and soil, 25(1):23-32.

VAN DER MERWE, M. & CAMPBELL, T. 2008. Profiling consumers in home ware stores according to their decision making process: An exploratory study. International journal of consumer studies,  32:328-334.

VAN DER MERWE, M., STOLTZ, M. & JACOBS, S. 2008. The influence of the clothing sales assistant on the female consumer’s purchasing decision: an exploratory investigation.  Journal of family ecology and consumer sciences, 36:59-69.

VAN DER MERWE, X., SONNENBERG, N.S., VAN DER MERWE, M. & KEMPEN, E.L. 2008. Exploring the influence of shelf-edge signage on consumer decision-making in Gauteng.  Journal of family ecology and consumer sciences, 36:81-95. http://.up.ac.za/saafecs/vol36/vandermerwe2.html

JACOBS, S., VAN DER MERWE, M., LOMBARD, E. & KRUGER, N.  2010.  Exploring consumers' preferences with regard to department and specialist food stores.  International journal of consumer studies,  34:11-18.

VAN DER MERWE, M., KEMPEN, E.L., BREEDT, S. & DE BEER, H.  2010.  Food choice: student consumers' decision-making process regarding food products with limited label information.  International journal of consumer studies,  34:169-178.

VAN DER MERWE, M & VENTER, K.  2010 (in press).  A consumer perspective on food labelling: ethical or not?  Koers, 75(2).

Popular

VAN LOGGERENBERG, M. 2000. Kwaliteitseienskappe van nuwe sorghumcultivars / Qualtiy properties of new sorghum cultivars. SA graan/SA grain,:41, October.

VAN LOGGERENBERG , M. 2002. Die belangrikheid van sorghum moutkwaliteit / The importance of sorghum malt quality. SA graan/SA grain:40, February.

VAN LOGGERENBERG , M. 2002. Sorghum: die suksesverhaal met ‘n rollermeule / Sorghum: the success story with a roller mill. SA graan/SA grain:76-77, August.

VAN LOGGERENBERG , M. 2003. Sorghum mout- en maalkultivars van die afgelope seisoen / Sorghum malting- and milling cultivars of the past season. SA graan/SA grain:44-45, January.

VAN LOGGERENBERG , M. 2003. Inmaakkwaliteit van cranberry- en rooi nierbone / Canning quality of cranberry- and red kidney beans. SA dry beans, 27: 38-39, Summer.

VAN LOGGERENBERG , M. 2004. Mout – en maalkwaliteit van sorghumcultivars vir die 2002/2003 seisoen / Malting – and milling quality of sorghum cultivars for the 2002/2003 season. SA graan/SA grain:44, January.

KEMPEN, E.L. & VAN DER MERWE, M. 2006. Sales: what consumers know that retailers don’t. Let’s Talk Retail, 1:7, Mar-May.

VAN DER MERWE, M. & KEMPEN, E.L. 2006. Point-of-sale displays: consumer pitfalls. Let’s Talk Retail, 2:1-2, Jun-Aug.

VAN DER MERWE, M. & KEMPEN, E.L. 2006. New product promotional displays: do they really work for the consumer? Let’s Talk Retail, 3:1-2, Sep-Nov.

VAN DER MERWE, M. 2006. Consumer satisfaction: can retailers offer more? European retail digest, 52:25-26, Winter.

Congress participation

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2002. Comparison of an abrasive decortication and roller mill techniques in sorghum meal production. Oral presentation. Combined Congress of SSSA, SASCP and SASHS, Potchefstroom. January 2002.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2002. Comparison of the effect of roller milling of sorghum to abrasive decortication milling on the colour of sorghum meal. Poster presentation. Annual Congress of Division Biological Sciences, Potchefstroom University, Potchefstroom. October, 2002.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2003. Determining oil and protein content of striped and black sunflower with NIR. Poster presentation. Eighth International Symposium on Soil and Plant Analysis, Somerset-West. January 2003.

VAN LOGGERENBERG, M., OSTHOFF, G. & PRETORIUS A.J. 2003. Evaluating and applying roller milling quality prediction model on sorghum. Poster presentation. Combined Congress of SSSA, SASCP and SASHS, Stellenbosch. January 2003.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2003. Evaluating the malting quality of commercially available sorghum cultivars over five seasons. Oral presentation. Combined Congress of SSSA, SASCP and SASHS, Cape Town. January 2003.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2004. Determining oil and protein content of striped and black sunflower with NIR spectroscopy. Oral presentation. South African Society of Crop Production annual congress, Bloemfontein. January 2004

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2004. Determining the mill index of maize with a NIT calibration. Poster presentation. South African Society of Crop Production Annual Congress, Bloemfontein. January 2004.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2004. Grain end-use quality of white sorghum grown in South-Africa – Preliminary experience. Oral presentation. White sorghum workshop, Pretoria. 21-22 October 2004.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2004. Predicting milling performance of maize using NIT technology. Oral presentation. Inernational Bread and Cereals Symposium, Johannesburg. 26-28 October 2004.

VAN LOGGERENBERG, M. & PRETORIUS A.J. 2005. Development and application a canning quality prediction model for small white beans lines selected for breeding. Oral presentation. Combined Congress of SASCP, SAWSS, SSSSA and SASHS, Potchefstroom. 10-13 January 2005.

VAN LOGGERENBERG, M., OSTHOFF, G. & PRETORIUS A.J. 2005. Evaluation and standardization of small-scale canning techniques and evaluation procedures for beans canned in tomato sauce in comparison with industrial canned beans. Oral presentation. Combined Congress of SASCP, SAWSS, SSSSA and SASHS, Potchefstroom. 10-13 January 2005.

VENTER, K., SPANGENBERG, S., LE ROUX, SCHOLTZ, C., VAN DER MERWE, M. & KEMNPEN, E.L. 2005. A South African study on the effect of point-of-sale item display on consumers’ purchasing behaviour: a systems perspective. Poster presentation. Efficient Consumer Response (ECR) Conference, Johannesburg. 31 October-1 November 2005.

VAN DER WALT, E., STRYDOM, Y. & VAN DER MERWE, M. 2005. A South African study on the effect of point-of-sale item display on consumers’ purchasing behaviour: a systems perspective. Poster presentation. Efficient Consumer Response (ECR) Conference, Johannesburg. 31 October-1 November 2005.

VAN DER MERWE, M., OSTHOFF, G. & PRETORIUS A.J. 2005. Evaluation and standardization of small-scale canning techniques and evaluation procedures for beans canned in tomato sauce in comparison with industrial canned beans. Oral presentation. South African Association of Food Science and Technology Biannual Conference. Stellenbosch. 6-7 September 2005.

BOTES, X., SONNENBERG, N.S. & VAN DER MERWE, M. 2006. A South African study of the influence of shelf-edge labelling on urban consumers’ grocery shopping behaviour. (Co-author of paper delivered by colleague at conference) Association for Consumer Research Asia-Pacific Conference, Sydney, Australia. 15-17 June 2006.

SCHOLTZ, C., VAN DER MERWE, M., KEMPEN, E.L., VENTER, K., SPANGENBERG, S. & LE ROUX, R. 2006. An exploratory study on the effect of point-of-purchase promotions of new food products on consumers’ perceptual process and consequent purchasing behaviour. Poster presentation. South African Association of Family Ecology and Consumer Sciences Biannual Conference, Cape Town. 12-14 July 2006.

VAN DER MERWE, M. 2006. The ethics of food labeling: a consumer perspective. Poster presentation. International Union of Food Science and Technology 13th Conference, Nantes, France. 18-21 September 2006.

JACOBS, S., STOLTZ, M. & VAN DER MERWE, M. 2006. An exploratory study on the influence of the clothing sales assistant on shoppers’ purchasing behaviour. Poster presentation. 31 October-1 Novermber 2006.

KEMPEN, E.L., VAN DER MERWE, M., SONNENBERG, N.S., VAN ZYL, N. & THOMAS, M. 2006. The effect of fashion store layout and visual merchandising on female consumer walking patterns: a systems perspective. (Co-author of paper delivered by colleague at conference) Association for Consumer Research Asia-Pacific Conference, Sydney, Australia. 15-17 June 2006.

VAN DER MERWE, M. & CAMPBELL, T.  2007.  Profiling consumers in home ware stores according to their decision making process: an exploratory study. Oral presentation 3rd International Consumer Sciences Research Conference, Belfast, Ireland. 27-29 June 2007.

VAN DER MERWE, M., JACOBS, S. & STOLTZ, M.  2007.  An exploratory study of the clothing sales assistant on shoppers' purchasing behaviour. Poster presentation. 3rd International Consumer Sciences Research Conference, Belfast, Ireland. 27-29 June 2007.

SCHUTTE, S.E., VAN DER MERWE, M. & KEMPEN, E.L. 2007. A qualitative investigation into student consumers’ decision-making process regarding food products containing limited label information. Poster presentation. 19th Biannual Conference of the South African Association of Food Science and Technology, Durban. 2-5 September 2007.

JACOBS, S., KRUGER, N., LOMBARD, E. & VAN DER MERWE, M. 2007. Food shoppers’ preferences with regard to department and specialised food stores. Poster presentation. Efficient Consumer Response (ECR) Conference, Johannesburg. 29-30 October 2006.

DICKS, E.G. & VAN DER MERWE, M. 2008. Applying the Elaboration Likelihood model to consumers’ perceptions of food additive labelling. Oral presentation. 9th International SAAFECS Conference, University of Pretoria, Pretoria. 13-16 May 2008.

SCHUTTE, S.E., VAN DER MERWE, M. & KEMPEN, E.L. 2008. A qualitative investigation into student consumers’ decision-making process regarding food products containing limited label information. Poster presentation. 9th International SAAFECS Conference, University of Pretoria, Pretoria. 13-16 May 2008.

VAN DER MERWE, X., SONNENBERG, N.C., VAN DER MERWE, M. & KEMPEN, E.L. 2008. The informational input of shelve-edge signage in grocery consumers’ decision-making processes.  Oral presentation. 9th International SAAFECS Conference, University of Pretoria, Pretoria. 13-16 May 2008.

VAN DER MERWE, M., STOLTZ, M. & JACOBS, S. 2008.  The influence of the cloting sales assistant on the female consumer’s purchasing decision: an exploratory investigation. Oral presentation. 9th International SAAFECS Conference, University of Pretoria, Pretoria. 13-16 May 2008.

DICKS, E.G. & VAN DER MERWE, M. 2008. Consumers’ perceptions of food additive labelling and consequent purchasing behaviour (Co-author of poster presentation delivered by student at conference). . International Federation for Home Economics 21nd World Congress, Lucerne, Switzerland, 26-31 July 2008.

SPANGENBERG, S., VAN DER MERWE, M., DE BEER, H., KEMPEN, E.L. & BOSMAN, M.J.C. 2009. The influence of the packaging of cold chain food products on consumers’ purchasing decisions: an exploratory investigation. Poster presentation. 2009 IFT Annual Meeting and Food Expo, Anaheim, California. 6-9 June 2009.

SCHUTTE, S., VAN DER MERWE, M., DE BEER, H., KEMPEN, E.L. & BOSMAN, M.J.C. 2009. Student consumers’ decision-making process regarding food products containing limited label information. Poster presentation. 2009 IFT Annual Meeting and Food Expo, Anaheim, California. 6-9 June 2009.

BOSMAN, M.J.C., ELLIS, S., BOUWER, S., JERLING, J. ERASMUS, A.C., VAN DER MERWE, M., HARMSE, N. & BADHAM, J.  2009.  South African consumers' opinions of soy and soy products.  Poster presentation.  IFT Annual Meeting and Food Expo, Anaheim, California.  6-9 June 2009.

BOSMAN, M.J.C., ELLIS, S., BOUWER, S., JERLING, J. ERASMUS, A.C., VAN DER MERWE, M., HARMSE, N. & BADHAM, J.  2009.  South African consumers' opinions of soy and soy products.  Poster presentation.  4th International Consumer Sciences Research Conference, Edinburgh, Scotland.  24-26 June 2009.

JACOBS, S., VAN DER MERWE, M., LOMBARD, E. & KRUGER, N.  2009.  Exploring consumers' preferences with regard to department and specialist food stores.  Oral presentation.  4th International Consumer Sciences Research Conference, Edinburgh, Scotland.  24-26 June 2009.

SCHUTTE, S., VAN DER MERWE, M., DE BEER, H., KEMPEN, E.L. & BOSMAN, M.J.C.  2009.  Student consumers' decision-making process regarding food products containing limited label information.  Oral presentation.  4th International Consumer Sciences Research Conference, Edinburgh, Scotland.  24-26 June 2009.

JACOBS, S., KRUGER, N., LOMBARD, E. & VAN DER MERWE, M.  2009.  Food shoppers' preferences with regard to department and specialised food stores.  Poster presentation.  4th International Federation of Home Economics (IFHE) - Africa Conference, Swaziland.  21-25 September 2009.

SPANGENBERG, S., VAN DER MERWE, M., DE BEER, H., KEMPEN, E.L. & BOSMAN, M.J.C.  2009.  The influence of packaging of cold chain food products on consumers' purchasing decisions: an exploratory investigation.  Poster presentation.  4th International Federation of Home Economics (IFHE) - Africa Conference, Swaziland.  21-25 September 2009

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