Burdock Group takes pride in the professional and academic achievements of its staff. As part of their professional development, our staff regularly publish in scientific and trade journals.


The following articles have been written by current and former Burdock Group team members. Please contact us at to request a copy of any of the publications referenced below, or for more information regarding our services.

Textbooks Published


Burdock Group published Fenaroli's Handbook of Flavor Ingredients - Sixth Edition


Dr. Burdock co-authors the chapter on Food Toxicology in the 8th edition of Casarett & Doull's Toxicology: The Basic Science of Poisons. This textbook is the main resource used in classrooms worldwide to teach the toxicology and safety of food. 



Consumer Education Information


Nano Ingredients and Pet Food: Is the Regulatory Cost Worth the Potential Benefits?
By Ray Matulka, Ph.D.
Petfood Industry
May 2015


Probiotics: Supplement, Drug or Something in Between?
By Ray Matulka, Ph.D.
Agro FOOD Industry Hi Tech
March/ April 2015


Suppliers and Manufacturers Must Cooperate in Regulatory Compliance
By Ray Matulka, Ph.D.
Nutritional Outlook
March 2015


Agree to Disagree: EU vs US Health Claims
By Carrie Kennedy and Anne-Laure Tardy
The World of Food Ingredients
December 2014


The Importance of Consumption Analysis in an Ingredient Safety Assessment
By Ray A. Matulka, Ph.D., Arlene Morales, and Silvia Ulm
ACT Poster Session
November 2014


FDA's Distinction without Difference
By George A. Burdock, Ph.D.
Natural Product INSIDER
October 2014


Nanotechnology: The Regulatory Impact
By George A. Burdock, Ph.D.
The World of Food Ingredients
September 2014


Food Colours versus Colouring Foods
By Ray A. Matulka, Ph.D. and Anne-Laure Tardy
Agro FOOD Industry Hi Tech
May/June 2014


NPA Newsletter
By George A. Burdock, Ph.D.
Nanotechnology: A Game Changer for Pet Food
May/June 2013


Nanotechnology Comes to Pet Food
By George A. Burdock, Ph.D.
Pet Food Industry
November 2012

Assessing Sweetener Safety
By Ray A. Matulka, Ph.D. and Nancy J. Szabo, Ph.D
The World of Food Ingredients
Oct/Nov 2012

Staying in the Claim Game
By Dr. George Burdock

The World of Food Ingredients
September 2012

The GRAS Process: Does It Need An Overhaul?
By Ray A. Matulka, Ph.D.
June 2012


Editorial: Ongoing Talks on BPA
By Jennifer Grebow
Nutritional Outlook
May 2012


Providing Efficacy in Theory and Practice
Featuring Ray A. Matulka, Ph.D.
Nutrition Industry Executive
May 2012


Is GRAS the cure for the high rate of NDI rejections?
By George A. Burdock, Ph.D.
Functional Ingredients

April 2012


Examining Echinacea
By Nancy J. Szabo, Ph.D.

Nutraceutical Business & Technology
January/February 2012

Claims Provide a Global Platform
By Nancy J. Szabo, Ph.D. and Ray A. Matulka, Ph.D.
Natural Products INSIDER
September 2011


Nanotechnology's Benefits and Risks for Dietary Supplements
By Dr. George A. Burdock 
Nutritional Outlook
March/April 2011


Dietary Supplements and Bioavailability: Looking for Some Action?
By Jennifer Kwok 
Nutritional Outlook
Jan/Feb 2011


Correlating Preclinical, Clinical and Post-Marketing Surveillance Data: A Case Study
Corresponding author Ioana G. Carabin, M.D.
Nutraceutical Business & Technology
Sept/Oct 2010


Under the Microscope
By Jennifer Kwok. Editor
Nutritional Outlook
July/Aug 2010


Coloring Options
By Laurie C. Dolan Ph.D. and Ray A. Matulka, Ph.D.
Prepared Foods
July 2010


INTERVIEW: Nanoscience - A Pioneering Technology with Increased Applications Making Food Better and Less Expensive
By Simon Duke
June 3, 2010


Special Delivery
By George A. Burdock, Ph.D. and Ray A. Matulka, Ph.D.
May 2010


Preserving a Gold Standard
By Robby Gardner
Nutritional Outlook
March 2010

Regulated or Not, Nano-Foods Coming to a Store Near You
By Andrew Schneider
AOL News
March 24, 2010


GRAS-fed animal feed markets set to open
By George A. Burdock, Ph.D.

Functional Ingredients
February 1, 2010


To Claim or Not To Claim
By Kate Quackenbusch
Nutrition Industry Executive
December 2009


It’s a Small World After All
By Rhonda Pain
Integrated Health Resource
September 2009


The Future of Dietary Supplements as Pet Food Ingredients
George A. Burdock ,Ph.D. and Ray A. Matulka, Ph.D
Natural Products INSIDER
September 2009


Holding Up Your Claim
Laurie C. Dolan Ph.D.
The World of Food Ingredients
June/July 2009


Ensuring Probiotic Efficacy
Ray A. Matulka, Ph.D. and Ioana Carabin, M.D
The World of Food Ingredients
April/May 2009


Small Talk
Featuring Ray A. Matulka, Ph.D. of Burdock Group
CPC Ingredients
Spring 2009


Emerging Delivery Technologies Breed Emerging Uncertainty
Laurie Dolan, Ph.D. and George A. Burdock, Ph.D.
Nutraceuticals World
March 2009


A Safe Landing in the U.S. Market
George A. Burdock, Ph.D., Christine Crincoli, Ph.D. and Simone Koenig
Nutraceutical and Business Technology
March/April 2009


How to Stake a Claim
Lonnie D. Williams, Ph.D. and Amy C. Mozingo, M.S.
Prepared Foods
January 2009


Regulatory & Scientific Roadmap for Claims
George A. Burdock, Ph.D., Amy C. Mozingo, M.S., John W. Rochowicz, B.S.
Natural Products INSIDER
October 2008


Nanotechnology & Nutraceuticals
Joanna Cosgrove
Nutraceuticals World
January 2008


Nanotechnology for Enhanced Control
Ray A. Matulka, Ph.D.
Inside Cosmecuticals
January/February 2008


Scientific Peer Review


Safety assessment of the microalgae Nannochloropsis oculata. Matulka RA, Kagan ML. Toxicology Papers. Volume 2, 2015, Pages 617–623. 2015 March 8; DOI:10.1016/j.toxrep.2015.03.008


Hydroxytyrosol: Lack of Clastogenicity in Bone Marrow Chromosome Aberration in Rats. Dolan LC, Hofman-Huther H, Amann N. BioMed Central 7:9232014 Dec 16. DOI: 10.1186/1756-0500-7-923.


Safety evaluation of Whole Algalin Protein (WAP) from Chlorella protothecoides. Szabo NJ, Matulka RA, Chan T.  Food Chem Toxicol. 2013 Jun 1;59C:34-45. doi: 10.1016/j.fct.2013.05.035. [Epub ahead of print]


US regulations on dietary supplements: How are they regulated? Ray Matulka, Ph.D. (2013) Agro Food Industry Vol. 24(4) 18-20.

Maintaining freshness in the global food market. Ray A. Matulka  (2012) Agro Food Industry Vol. 23(3), 2.

Claims: the United States and European perspective. Laurie C. Dolan, Violaine Chaumont (2011) Agro Food Industry Vol. 2(4), 5-7.

Safety evaluation of Lactobacillus pentosus strain b240. Nancy J. Szabo, Laurie C. Dolan, George A. Burdock, Takashi Shibano, Shin-ichi Sato, Hiroshi Suzuki,Tohru Uesugi, Satoko Yamahira, Masamichi Toba, Hirofumi Ueno. Food and Chemical Toxicology, 49 (2011) 251–258.

Evidence-Based Review on the Effect of Normal Dietary Consumption of Fructose on Blood Lipids and Body Weight of Overweight and Obese Individuals. Laurie C. Dolan; Susan M. Potter; George A. Burdock. Critical Reviews in Food Science and Nutrition, 50: 10, 889 — 918.

Increased plasma PYY levels following supplementation with the functional fiber PolyGlycopleX in healthy adults. Reimer, RA, Pelletier, X, Carabin, IG, Lyon, M, et al (2010).  European Journal of Clinical Nutrition advance online publication 28 July 2010; doi: 10.1038/ejcn.2010.141 

Defining nutrients: Are Some Antioxidants Left on the Sidelines? R.A. Matulka (2010) Agro Food Industry Vol. 21, n. 6:2-3.

To link to this Article: DOI: 10.1080/10408398.2010.512990


Naturally Occurring Food Toxins Laurie C. Dolan , Ray A. Matulka and George A. Burdock. Toxins 2010, 2(9), 2289-2332; doi:10.3390/toxins2092289. 

Safety studies conducted on a proprietary high-purity aloe vera inner leaf fillet preparation, Qmatrix® L.D. Williams, G.A. Burdock, E. Shin, S. Kim, T.H. Jo, K.N. Jones, R. Matulka (2010). Regulatory Toxicology and Pharmacology. Volume 57, Issue 1, June 2010, Pages 90-98.


Safety and Efficacy of Hydr oxycitric Acid Derived from Garcinia cambogia – A Literature Review. S. J. Stohs, H.G. Preuss, S.E. Ohia,G.R. Kaats, C.L. Keen, L.D. Williams, and G.A. Burdock. HerbalGram Spring 2010;85.

Safety Studies Conducted on a Proprietary High-Purity Aloe Vera Inner Leaf Fillet Preparation, Qmatrix®
. L.D. Williams, G.A. Burdock, E. Shin, S. Kimb, T.H. Joc, K.N. Jones, and R.A. Matulka (2010). Regulatory Toxicology and Pharmacology (online ahead of print).

Evidence that iodine supplementation should be considered during pregnancy. L.C. Dolan and G.A. Burdock (2009) Agro Food Industry: Focus on infant/children nutrition, Vol.20, n.6:3-5


The best blend for greatest profits combines innovation and safety. R.A. Matulka and R.A. McNeil (2009) Agro Food Industry Vol. 20, n.6:12-13


A formula for preserving brand integrity during flavour innovation. R.A. Matulka and G.A. Burdock (2009) Agro Food Industry 20:70-72.


Literature review on the safety of Toyocerin, a non-toxigenic and non-pathogenic Bacillus cereus var. toyoi preparation.L.D. Williams, G.A. Burdock, Guillermo Jiménez b, Marisol Castillo (2009) Regulatory Toxicology and Pharmacology 55 (2009) 236–246.


Safety studies conducted on high-purity trans-resveratrol in experimental animals.L.D. Williams and G .A. Burdock (2009) Food and Chemical Toxicology 47:170–2182


No evidence demonstrating hepatotoxicity associated with hydroxycitric acid. S.J. Stohs, H.G. Preuss, S.E. Ohia, G.R. Kaats, C.L. Keen, L.D. Williams and G.A. Burdock (2009) World Journal of Gastroenterology 15:32. pp. 4087-4089


Genotoxicity studies on a high-purity rebaudioside A preparation.L.D. Williams and G.A. Burdock (2009) Food and Chemical Toxicology 47:1831-1836

The safety of PolyGlycopleX® (PGX®) as shown in a 90-day rodent feeding study.R.A. Matulka, M. Lyon, S. Wood, P. A. Marone, D.J. Merkel and G.A. Burdock, (2009) Nutrition Journal 8:1


Safety assessment of kola nut extract as a food ingredient. G.A. Burdock, I.G. Carabin and Christine M. Crincoli, (2009) Food and Chemical Toxicology


Supplementation of a functional fiber (Polyglycoplex®) to the diet is well tolerated by healthy subjects in a clinical trial. I.G. Carabin, M.R. Lyon, S. Wood, X. Pelletier, Y. Donazzolo and G.A. Burdock, (2009) Nutrition Journal 8:9. pp. 1-11


Acute and subchronic toxicity and genotoxicity of SE5-OH, an equol-rich product produced by Lactococcus garvieae. S. Yee, G.A. Burdock, Y. Kurata, Y. Enomoto, K. Narumi, S. Hamada, T. Itoh, Y. Shimomura and T. Ueno, (2008) Food and Chemical Toxicology 46:2713–2720 (Available online ahead of press)


Developmental and reproductive effects of an equol-rich product, SE5-OH. R.A. Matulka, I. Matsuura, T. Uesugi, T. Ueno and G.A. Burdock, (2008) Journal of Toxicology


Lack of toxicity by medium chain triglycerides (MCT) in canines during a 90-day feeding study. R.A. Matulka, L.J. Thompson and G.A. Burdock, (2008) Food and Chemical Toxicology 47:35–39


Safety assessment of coriander (Coriandrum sativum L.) essential oil as a food ingredient. G.A. Burdock and I.G. Carabin, (2008) Food and Chemical Toxicology 47:22–34


In vitro and in vivo safety studies of a proprietary whey growth factor extract. A.R. Dyer, G.A. Burdock, I.G. Carabin, M.C. Haas, J. Boyce, R. Alsaker and L C. Read (2008) Food and Chemical Toxicology 46:1659–1665 (Available online)


Safety assessment of 2-ethyl-3, (5 or 6)-dimethylpyrazine as a food ingredient. G.A. Burdock and I.G. Carabin (2008) Regulatory Toxicology and Pharmacology

Safety assessment of ylang-ylang oil as a food ingredient. G.A. Burdock and I.G. Carabin (2008) Food and Chemical Toxicology 46:433-445


Safety assessment of sandalwood oil (Santalum album L.).
G.A. Burdock and I.G. Carabin (2008) Food and Chemical Toxicology 46:421-432


Oral developmental toxicity study of methylsulfonylmethane in rats. R. A. Matulka, B.A. Magnuson, J. Appleton, B. Ryan (2007) Food and Chemical Toxicology 45:977-984


Breaking Down the Barriers to Functional Foods, Chapter 7. G.A. Burdock and I.G. Carabin (2007) D. Bagchi (ed) In: Nutraceutical and Functional Food Regulation in the United States and Around the World, a volume of the Food Science and Technology Series. Elsevier, NY


Chapter 30: Food Toxicology. F. Kotsonis and G.A. Burdock (2007) In: Toxicology: The Basic Science of Poisons. 8th edition C.D. Klaassen (Ed.) Pergamon Press, NY


Safety assessment of hydroxypropyl methylcellulose as a food ingredient. G.A. Burdock and I.G. Carabin (2007) Food and Chemical Toxicology 45:2341-2351.


Nanotechnology and the potential nanotoxicity of food ingredients. G.A. Burdock and L. Williams (2007) Agro Food Industry 18:52-53.


Aspartame: A safety evaluation based on current use levels, regulations, toxicological and epidemiological studies. B.A. Magnuson, G.A. Burdock, J. Doull, R.M. Kroes, G.M. Marsh, M.W. Pariza, P.S. Spencer, W.J. Waddell, R. Walker, and G.M. Williams (2007) Critical Reviews in Toxicology 37:629-727.