Gopinadhan Paliyath

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Referred Publications:

Yuan, H., L. Chen, G. Paliyath, A. Sullivan, D. P. Murr and Z. Novotna. (2006). Immunohistochemical localization of phospholipase D in strawberry fruits. Scientia Horticulturae. (in press)

Yuan, H, L. Chen, G. Paliyath, A. Sullivan and D. P. Murr. (2006). Differential incorporation of a fluorescent phospholipid into strawberry fruit protoplast membrane in the presence of calcium and IAA. Physiol. Mol. Biol. Plant., 12, (in press).

Schofield, A. and G. Paliyath. (2005). Phytochrome regulation of lycopene biosynthesis in tomato fruits. Plant Physiol. Biochem., 1052-1060.

Yuan, H., L. Chen, G. Paliyath, A. Sullivan and D. P. Murr. (2005). Characterization of microsomal and mitochondrial phospholipase D activities and cloning of a phospholipase D alpha cDNA from strawberry fruits. Plant Physiol. Biochem. 43, 535-547.

Ahn, T., M. Oke, A. Schofield and G. Paliyath. (2005). Effect of phosphorus fertilizer supplementation on antioxidant enzyme activities in tomato fruits. J. Agr. Food Chem., 53, 1539-1545.

Oke, M., T. Ahn, A. Schofield and G. Paliyath. (2005). Effects of phosphorus fertilizer supplementation on processing quality and functional food ingredients in tomato. J. Agr. Food Chem., 53, 1531-1538.

Hakimuddin, F., G. Paliyath and K. Meckling. (2004) Selective cytotoxicity of a red grape wine flavonoid fraction against MCF-7 cells. Breast Canc. Res. Treatment, 85, 65-79.

Oke, M., R.G. Pinhero and G. Paliyath. (2003). The effects of genetic transformation of tomato with antisense phospholipase D cDNA on the quality characteristics of fruits and their processed products. Food Biotechnol., 17, 163-182.

Rupasinghe, H.P.V., K.C. Almquist, G. Paliyath, D.P. Murr, T.E. Elthon and A.C. Purvis. (2003). Involvement of the alternative oxidase in superficial scald in apple: Isolation and sequence analysis of the apple AOX1 cDNA. Acta Horticulturae (ISHS), 628, 481-486.

Whiting, M.D., H.P.V. Rupasinghe, D.P. Murr, G. Paliyath and D.D. Rowan. (2003). Effect of alpha-farnesene and its metabolites on membrane properties of “Delicious” apples. Acta Horticulturae (ISHS), 628, 627-633.

Pinhero, R.G., K.C. Almquist, Z. Novotna and G. Paliyath. (2003). Developmental regulation of phospholipase D in tomato fruits. Plant Physiol. Biochem., 41, 223-240.

Rupasinghe, H.P.V., G. Paliyath and D.P. Murr. (2003). Biosynthesis of isoprenoids in higher plants. Physiol. Mol. Biol. Plant., 9, 19-28.

Pinhero, R.G., G. Paliyath, T. Tanaka, R.Y. Yada and A. Marangoni. (2003). Partial purification and characterization of calmodulin-dependent NAD-kinase from potato leaves. Physiol. Mol. Biol. Plant., 9, 75-83.

Ahn, T., A. Schofield and G. Paliyath. (2002). Changes in antioxidant enzyme activities during tomato fruit development. Physiol. Mol. Biol. Plant., 8, 241-249.

Rupasinghe, H.P.V., K.C. Almquist, G. Paliyath and D. P. Murr. (2001). Cloning of hmg1 and hmg2 cDNAs encoding 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase (HMGR) and their expression and activity in relation to -Farnesene synthesis in apple. Plant Physiol. Biochem., 39, 933-947.

Pinhero, R.G. and G. Paliyath. (2001). Antioxidant and calmodulin- inhibitory activities of phenolic components from fruit wines and their biotechnological implications. Food Biotechnol., 15, 179-192.

Paliyath, G. and R.G. Pinhero. (2000). Seasonal variation in peroxidase activity of carnation flower petals in response to ethylene. Physiol. Mol. Biol. Plant., 6, 141-148.

Rupasinghe, H. P. V., D.P. Murr, G. Paliyath and J.R. DeEll. (2000). Suppression of alpha-farnesene biosynthesis in “Delicious” apples by aminoethoxyvinylglycine and 1-methyl cyclopropene. Physiol. Mol. Biol. Plant., 6, 195-198.

Rupasinghe, H.P.V., G. Paliyath and D. P. Murr. (2000). Sesquiterpene alpha-farnesene synthase: Partial purification, characterization and activity in relation to superficial scald development in apples. J. Amer. Soc. Hort. Sci., 125, 111-119.

Rupasinghe, H. P. V., D.P. Murr, G.Paliyath and L. Skog. (2000). Inhibitory effect of 1-MCP on ripening and superficial scald of McIntosh and Delicious apples. J. Hort. Sci. Biotechnol., 75, 271-276.

Books:

Food Biochemistry and Food Processing. (2006). (Eds) Hui, Y.H., W-.K. Nip, M.L.N. Leo, G. Paliyath, S. Sahlstrom and B.K. Simpson. Iowa State Press/ Blackwell Publishers, pp 769. 

Food Biotechnology (Second edition), (2005).  (Eds) Shetty, K., G. Paliyath, A. Pometto and R.E. Levin. CRC Press Inc. Boca Raton, Florida, pp 1982.
 
Post Harvest Biology and Technology of Fruits, Vegetables and Flowers. (Eds) Paliyath, G., D.P. Murr, A.K. Handa and S. Lurie. Haworth Press (In preparation).

Book Chapters:

Paliyath, G., D, P. Murr. (2006). Biochemistry of fruits. In, Y.H. Hui, G.Paliyath et al. Eds., Food Biochemistry and Food Processing, Iowa State Press/ Blackwell Publications, pp 487-514.

Oke, M. and G. Paliyath. (2006). Biochemistry of fruit processing. In, Y.H. Hui, G.Paliyath et al. Eds., Food Biochemistry and Food Processing, Iowa State Press/ Blackwell Publications, pp 515-535.

Oke, M. and G. Paliyath. (2006). Biochemistry of vegetable processing. In, Y.H. Hui, G.Paliyath et al. Eds., Food Biochemistry and Food Processing, Iowa State Press/ Blackwell Publications, pp 537-554.

Pinhero, R. G and G. Paliyath. (2005). Biotechnological approaches to improve nutritional quality and shelf life of fruits and vegetables. In, Shetty, K., G. Paliyath, A. Pometto and R.E. Levin. Food Biotechnology (Second Edition), CRC Press Inc. Boca Raton, Florida, pp 933-968.

Oke, M., H. Fisher and G. Paliyath. (2005). Biotechnology in wine industry. In, Shetty, K., G. Paliyath, A. Pometto and R.E. Levin. Food Biotechnology (Second Edition), CRC Press Inc. Boca Raton, Florida, pp 899-914.

Popular Articles, Seminars, Media Events:

Paliyath, G. (2005) Health benefits of wine. Amateur Winemakers of Ontario Festival. London, Ontario, seminar presentation.

Flavonoids attack CA cells leaving healthy ones alone. The Medical Post (on line), 40, issue 22, June 01, 2004.

Red wine fights cancer, leaves healthy cells alone-New study finds. News Release, University of Guelph, April 05, 2004.

CBC Radio, Quirks and Quarks, April 7, 2004.

Anticancer food additives possible: Study, Guelph Mercury, Saturday, April 10, 2004.

Town and Country, Global TV, Saturday/Sunday, January 3 and 4, 2004, Infoclips. Red wine and cancer prevention.

Town and Country, www.gov.on.ca/OMAF, Quicklinks, January 1-7, 2004 Infoclips. Red wine and cancer prevention.

Bruulsema, T.W., G. Paliyath, Oke, M. and A. Schofield. (2004). Phosphorus and phytochemicals. Better Crops (Potash and Phosphate Institute/Potash and Phosphate Institute Canada), 88, 10-12.

Daniels-Lake, B.J., Paliyath, G. et.al.. (2003). Postharvest Research in Canada- a review. Presented at the International Society of Horticultural Science Symposium, Toronto, 2002. Acta Horticulturae (ISHS), 628, 23-37.

Antioxidants in fruit wines, CKCO TV, health clips, July 2003.

Paliyath, G., K. Meckling and F. Hakimuddin. (2003). A closer look at cancer prevention. Research Magazine, University of Guelph, 17, (2), 27.

A glass of wine, an ounce of prevention. Guelph Mercury, Saturday, October 5, 2002.

Paliyath, G., K. Almquist and R. G. Pinhero. (2000). Taking the chill out of tomatoes. Agri-Food Res. Ont., 24, 20-21.

Paliyath, G. and D. P. Murr. (1998). Chemical-free ways of preserving fruits and vegetables. Research Univ. Guelph., 14, 41.

Paliyath, G.. (1998). Novel trends in improving fruit and vegetable quality. Agri-Food Res. Ont., 21, 43.

Murr, D.P., G. Paliyath, L. Wiley, R. Tschanz and K. Hustwit. (1994). Management strategies for scald of Apples. Agri-Food Res. Ont., 17, 20-23.

Deschene, A., G. Paliyath and J. E. Thompson. (1990). Preventing post-harvest deterioration of broccoli. Highlights of Agr. Res. Ont., 13, 17-20.

Industrially Relevant Research, Technology Development:

The focus of my present research is in the areas of post harvest biology and technology, functional foods and nutraceuticals. Various aspects dealing with improvement in fruit and vegetable shelf life and quality, and efficacy of functional food ingredients are being investigated. Technologies and products have been developed for enhancing the shelf life and quality of fruits and vegetables based on phospholipase D inhibition. As well, novel technologies for the isolation of active nutraceutical fractions and the use of nutraceuticals to enhance the functional food value of processed fruits and vegetables are being developed (disclosure stage). The phospholipase D inhibition technology for fruit and vegetable preservation is in the process of commercialization. R&D activities relevant to the Industry sector include; 1) Optimization of an enhanced freshness formulation for application to various fruits, vegetables and flowers; 2) Developing methods for nutraceutical carriers that would enhance the functional food quality, and efficacy of processed fruits and vegetables (ex. Stabilizing the levels of lycopene in tomato juice, sauce etc. for health beneficial effects such as preventing cardiovascular diseases and prostate cancer); and 3) Developing novel technologies to enhance the cancer-preventive ingredients in red wine, grape powder and grape juice.

Patent awarded - Paliyath, G; Date filed- 7th Feb 2000, Date awarded- 4th Feb 2003, Country-USA, Joint Inventors- R. Y. Yada, D. P. Murr and R.G. Pinhero, Title- Inhibition of Phospholipase D, The patent claims (45) the use of hexanal, hexanol and other aliphatic aldehydes and alcohols for enhancing shelf life and quality of fruits, vegetables and minimally processed products, Patent # 6,514,914.

Patent applied - Paliyath, G; Date filed- 20th December 2002, Countries- USA and WTO members (PCT), Joint Inventor- D.P. Murr, Title- Compositions for the Preservation of Fruits and Vegetables, The patent claims (38) the use of a formulation based on hexanal and other GRAS ingredients for enhancing the shelf life and quality of fruits, vegetables and flowers by pre- or post-harvest treatment.

Patent Disclosure - Paliyath, G. Joint Inventor- M. Oke, Title- Enhancement of organoleptic and nutraceutical qualities of processed tomato products by soy lecithin (phosphatidylcholine) (June, 2002).

Training of Personnel:

Current- Four Ph. D. students and one M.Sc. student.

1993-2005- Ph.D. students- 5; M.Sc. Students- 7; B.Sc. students- 6

Post doctoral Fellows and Research Technicians- 8

Membership in Professional Organizations:

American Chemical Society
Canadian Society of Plant Physiologists

Research Funding (1993- 2005): > 2.75 million dollars