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ARS Home » Northeast Area » Wyndmoor, Pennsylvania » Eastern Regional Research Center » Dairy and Functional Foods Research » People & Locations » Hoa Chau (Rose)

Hoa K Chau (Rose)
Dairy and Functional Foods Research
Chemist

Phone: (215) 233-6636
Fax: (215) 233-6406

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Modification of pectin with high-pressure processing treatment of fresh orange peel before pectin extraction: Part I. The effects on pectin extraction and structural properties Reprint Icon - (Peer Reviewed Journal)
Zhao, W., Xu, Y., Dorado, C., Chau, H.K., Hotchkiss, A.T., Cameron, R.G. 2023. Modification of pectin with high-pressure processing treatment of fresh orange peel before pectin extraction: Part I. The effects on pectin extraction and structural properties. Food Hydrocolloids. 149/109516. https://doi.org/10.1016/j.foodhyd.2023.109516.
Modification of pectin with high-pressure processing treatment of fresh orange peel before pectin extraction: Part II. The effects on gelling capacity and emulsifying properties of pectin Reprint Icon - (Peer Reviewed Journal)
Zhao, W., Xu, Y., Dorado, C., Bai, J., Chau, H.K., Hotchkiss, A.T., Yadav, M.P., Cameron, R.G. 2023. Modification of pectin with high-pressure processing treatment of fresh orange peel before pectin extraction: Part II. The effects on gelling capacity and emulsifying properties of pectin. Food Hydrocolloids. 149/109536. https://doi.org/10.1016/j.foodhyd.2023.109536.
Carrot rhamnogalacturonan I structure and composition changed during 2017 in California Reprint Icon - (Peer Reviewed Journal)
Hotchkiss, A.T., Chau, H.K., Strahan, G.D., Nunez, A., Harron, A.F., Simon, S., White, A.K., Yadav, M.P., Yeom, H. 2022. Carrot rhamnogalacturonan I structure and composition changed during 2017 in California. Food Hydrocolloids. https://doi.org/10.1016/j.foodhyd.2022.108411.
Arabinoxylans and cross-linked arabinoxylans: Fermentation and potential application as matrices for probiotic bacterial encapsulation Reprint Icon - (Peer Reviewed Journal)
Mendez-Encinas, M.A., Carvajal-Millan, E., Simon, S., White, A.K., Chau, H.K., Yadav, M.P., Renye Jr, J.A., Hotchkiss, A.T., Rascon-Chu, A., Astiazaran-Garcia, H., Valencia-Rivera, D.E. 2022. Arabinoxylans and cross-linked arabinoxylans: Fermentation and potential application as matrices for probiotic bacterial encapsulation. Food Hydrocolloid for Health. https://doi.org/10.1016/j.fhfh.2022.100085.
Cranberry arabino-xyloglucan and pectic oligosaccharides induce Lactobacillus growth and short-chain fatty acid production Reprint Icon - (Peer Reviewed Journal)
Hotchkiss, A.T., Renye Jr, J.A., White, A.K., Nunez, A., Guron, G.P., Chau, H.K., Simon, S., Mclemore, C.A., Rastall, R., Khoo, C. 2022. Cranberry arabino-xyloglucan and pectic oligosaccharides induce Lactobacillus growth and short-chain fatty acid production. Microorganisms. https://doi.org/10.3390/microorganisms10071346.
Structural Characterization of Red Beet Fiber Pectin Reprint Icon - (Peer Reviewed Journal)
Hotchkiss, A.T., Chau, H.K., Strahan, G.D., Nunez, A., Simon, S., White, A.K., Dieng, S., Heuberger, E., Yadav, M.P., Hirsch, J. 2022. Structural characterization of red beet fiber pectin. Food Hydrocolloids. 129:107549. https://doi.org/10.1016/j.foodhyd.2022.107549.
Blueberry fiber pectin, xyloglucan and anthocyanin structure and function Reprint Icon - (Peer Reviewed Journal)
Hotchkiss, A.T., Chau, H.K., Strahan, G.D., Nunez, A., Simon, S., White, A.K., Yadav, M.P., Dieng, S., Hirsch, J. 2020. Blueberry fiber pectin, xyloglucan and anthocyanin structure and function. Food Hydrocolloids. https://doi.org/10.1016/j.foodhyd.2020.106572.
Molecular characterization of the interacting and reacting systems formed by alpha-lactalbumin and sugar beet pectin Reprint Icon - (Peer Reviewed Journal)
Qi, P.X., Chau, H.K., Hotchkiss, A.T. 2020. Molecular characterization of the interacting and reacting systems formed by alpha-lactalbumin and sugar beet pectin. Food Hydrocolloids. 1-14. https://doi.org/10.1016/j.foodhyd.2020.106490.
Characterization of two types of polysaccharides from Eremurus hissaricus roots growing in Tajikistan Reprint Icon - (Peer Reviewed Journal)
Muhidinov, Z.K., Bobokalonov, J.T., Ismoilov, I.B., Strahan, G.D., Chau, H.K., Hotchkiss, A.T., Liu, L.S. 2020. Characterization of two types of polysaccharides from Eremurus hissaricus roots growing in Tajikistan. Food Hydrocolloids. 205. https://doi.org/10.1016/j.foodhyd.2020.105768.
Sugar beet pulp fiber is a source of bioactive food and feed ingredients - (Review Article)
Hotchkiss, A.T., Qi, P.X., Liu, L.S., Chau, H.K., Cooke, P., Nunez, A., White, A.K., Fishman, M. 2019. Sugar beet pulp fiber is a source of bioactive food and feed ingredients. International Sugar Journal. 121:126-131. Available: https://internationalsugarjournal.com/paper/sugar-beet-pulp-fiber.
Sugar Beet Pulp Fiber is a Source of Bioactive Food and Feed Ingredients - (Review Article)
Hotchkiss, A.T., Qi, P.X., Liu, L.S., Chau, H.K., Cooke, P., Nunez, A., White, A.K., Fishman, M. 2019. Sugar Beet Pulp Fiber is a Source of Bioactive Food and Feed Ingredients. International Sugar Journal. 121(1451):826-831.
Physicochemical characterization and rheological behavior of hemicelluloses isolated from sorghum bran, sorghum bagasse and sorghum biomass Reprint Icon - (Peer Reviewed Journal)
Qiu, S., Yadav, M.P., Chau, H.K., Yin, L. 2019. Physicochemical characterization and rheological behavior of hemicelluloses isolated from sorghum bran, sorghum bagasse and sorghum biomass. Food Hydrocolloids. https://doi.org/10.1016/j.foodhyd.2019.105382.
Molecular characterization of interacting complexes and conjugates induced by the dry-state heating of beta-lactoglobulin and sugar beet pectin (SBP) Reprint Icon - (Peer Reviewed Journal)
Qi, P.X., Chau, H.K., Hotchkiss, A.T. 2019. Molecular characterization of interacting complexes and conjugates induced by the dry-state heating of beta-lactoglobulin and sugar beet pectin (SBP). Food Hydrocolloids. 91:10-18. https://doi.org/10.1016/j.foodhyd.2019.01.010.
Effect of long term cold storage and microwave extraction time on the physical and chemical properties of citrus pectins Reprint Icon - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Hotchkiss, A.T., Garcia, R.A., Cooke, P.H., White, A.K. 2019. Effect of long term cold storage and microwave extraction time on the physical and chemical properties of citrus pectins. Food Hydrocolloids. 92:104-116. https://doi.org/10.1016/j.foodhyd.2018.12.047.
Release and recovery of pectic hydrocolloids and phenolics from culled citrus fruits - (Peer Reviewed Journal)
Cameron, R.G., Chau, H.K., Hotchkiss, A.T., Manthey, J.A. 2017. Release and recovery of pectic hydrocolloids and phenolics from culled citrus fruits. Food Hydrocolloids. 72:52-61. doi:org/10.1016/j.foodhyd.2017.05025.
Recovery of pectic hydrocolloids and phenolics from Huanglongbing related dropped citrus fruit Reprint Icon - (Peer Reviewed Journal)
Cameron, R.G., Chau, H.K., Hotchkiss, A.T., Manthey, J.A. 2017. Recovery of pectic hydrocolloids and phenolics from Huanglongbing related dropped citrus fruit. Journal of the Science of Food and Agriculture. 97:4467-4475. https://doi.org/10.1002/jsfa.8310.
Peroxidase-mediated formation of corn fiber gum-bovine serum albumin conjugates: molecular and structural characterization - (Peer Reviewed Journal)
Liu, Y., Yadav, M.P., Chau, H.K., Yin, L. 2017. Peroxidase-mediated formation of corn fiber gum-bovine serum albumin conjugates: molecular and structural characterization. Carbohydrate Polymers. 166:114-122.
Pectic oligosaccharide structure-function relationships: prebiotics, inhibitors of Escherichia coli O157:H7 adhesion and reduction of Shiga toxin cytotoxicity in HT29 cells - (Peer Reviewed Journal)
Di, R., Vakkalanka, M.S., Onumpai, C., Chau, H.K., White, A.K., Rastall, R.A., Yam, K., Hotchkiss, A.T. 2017. Pectic oligosaccharide structure-function relationships: prebiotics, inhibitors of Escherichia coli O157:H7 adhesion and reduction of Shiga toxin cytotoxicity in HT29 cells. Food Chemistry. 227:245-254.
Investigation of the molecular interactions between beta-lactoglobulin and low methoxyl pectin by multi-detection high performance size exclusion chromatography - (Peer Reviewed Journal)
Qi, P.X., Chau, H.K., Fishman, M., Wickham, E.D., Hotchkiss, A.T. 2016. Investigation of the molecular interactions between beta-lactoglobulin and low methoxyl pectin by multi-detection high performance size exclusion chromatography. Food Hydrocolloids Journal. doi: 10.1016/j.foodhyd.2016.09.016.
Studies of molecular interactions between beta-lactoglobulin and sugar beet pectin at neutral pH by high performance size exclusion chromatography - (Proceedings)
Qi, P. X., Chau, H. K., Fishman, M. L., & Hotchkiss, A. T., Jr. (2016). Studies of molecular interactions between beta-lactoglobulin and sugar beet pectin at neutral pH by high performance size exclusion chromatography. In Williams, P. A. & Phillips, G. O. (Eds.), Gums and Stabilisers for the Food Industry 18: Hydrocolloid Functionality for Affordable and Sustainable Global Food Solutions, London, UK: The Royal Society of Chemistry. p. 76-89.
Continuous process for enhanced release and recovery of pectic hydrocolloids and phenolics from citrus biomass - (Peer Reviewed Journal)
Cameron, R.G., Chau, H.K., Manthey, J.A. 2016. Continuous process for enhanced release and recovery of pectic hydrocolloids and phenolics from citrus biomass. Journal of Chemical Technology & Biotechnology. 91:2597-2606. doi: 10.1002/jctb.4854.
Modified sugar beet pectin induces apoptosis of colon cancer cells via interaction with the neutral sugar side-chains Reprint Icon - (Peer Reviewed Journal)
Maxwell, E.G., Colquhoun, I.J., Claus, R., Chau, H.K., Hotchkiss, A.T., Waldron, K.W., Morris, V.M., Belshaw, N.J. 2015. Modified sugar beet pectin induces apoptosis of colon cancer cells via interaction with the neutral sugar side-chains. Carbohydrate Polymers. 136:923-929. DOI: 10.1016/j.carbpol.2015.09.063.
Rhamnogalacturonan I containing homogalacturonan inhibits colon cancer cell proliferation by decreasing ICAM1 expression Reprint Icon - (Peer Reviewed Journal)
Maxwell, E.G., Colquhoun, I.J., Rolin, C., Chau, H.K., Hotchkiss, A.T., Waldron, K.W., Morris, V.J., Belshaw, N.J. 2015. Rhamnogalacturonan I containing homogalacturonan inhibits colon cancer cell proliferation by decreasing ICAM1 expression. Carbohydrate Polymers. 132:546-553. DOI: 10.1016/j.carbpol.2015.06.082
Cranberry xyloglucan structure and inhibition of Escherichia coli adhesion to epithelial cells Reprint Icon - (Peer Reviewed Journal)
Hotchkiss, A.T., Nunez, A., Strahan, G.D., Chau, H.K., White, A.K., Marais, J.P., Hom, K., Vakkalanka, M.S., Di, R., Yam, K., Khoo, C. 2015. Cranberry xyloglucan structure and inhibition of Escherichia coli adhesion to epithelial cells. Journal of Agricultural and Food Chemistry. 63:5622-5633. DOI: 10.1021/acs.jafc.5b00730.2015.
Production of bio-based fiber gums from the waste streams resulting from the commercial processing of corn bran and oat hulls Reprint Icon - (Peer Reviewed Journal)
Yadav, M.P., Hicks, K.B., Johnston, D., Hotchkiss, A.T., Chau, H.K., Hanah, K. 2015. Production of bio-based fiber gums from the waste streams resulting from the commercial processing of corn bran and oat hulls. Food Hydrocolloids Journal. DOI: 10.1016/j.foodhy.2015.02.017.
Characterization of the global structure of low methoxyl pectin in solution - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Qi, P.X., Hotchkiss, A.T., Garcia, R.A., Cooke, P.H. 2015. Characterization of the global structure of low methoxyl pectin in solution. Food Hydrocolloids Journal. 46:153-159. DOI 10.10.1016/j.foodhyd.2014.12.021.
Investigating molecular interactions between beta-lactoglobulin and sugar beet pectin by multi-detection HPSEC Reprint Icon - (Peer Reviewed Journal)
Qi, P.X., Chau, H.K., Fishman, M., Wickham, E.D., Hotchkiss, A.T. 2014. Investigating molecular interactions between beta-lactoglobulin and sugar beet pectin by multi-detection HPSEC. Carbohydrate Polymers. 107:198-208.
Rheology and composition of processed citrus fiber Reprint Icon - (Peer Reviewed Journal)
Lundberg, B., Pan, X., White, A.K., Chau, H.K., Hotchkiss, A.T. 2013. Rheology and composition of processed citrus fiber. Journal of Food Engineering. 125:97-104.
Physico-chemical characterization of protein associated polysaccharides extracted from sugar beet pulp - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Qi, P.X., Hotchkiss, A.T., Yadav, M.P. 2013. Physico-chemical characterization of protein associated polysaccharides extracted from sugar beet pulp. Carbohydrate Polymers. 92:2257-2266.
Structural characteristics of pumpkin pectin extracted by microwave heating - (Peer Reviewed Journal)
Yoo, H., Lee, B., Lee, H., Lee, S., Bae, I., Lee, H., Fishman, M., Chau, H.K., Savary, B.J., Hotchkiss, A.T. 2012. Structural characteristics of pumpkin pectin extracted by microwave heating. Journal of Food Science. 77:C1169-C1173.
The characterization of sugar beet pectin using the EcoSEC® GPC system coupled to multi-angle light scattering, quasi-elastic light scattering, and differential viscometry - (Trade Journal)
Brewer, A.K., Chau, H.K., Hotchkiss, A.T., Fishman, M. 2012. The characterization of sugar beet pectin using the EcoSEC® GPC system coupled to multi-angle light scattering, quasi-elastic light scattering, and differential viscometry. Trade Journal Publication. LG/GC The Application Notebook, June 2012 issue, Iselin, NJ: LG/GC Chromatography. p 30-32.
Activation of human T-helper/inducer cell, T-cytotoxic/suppressor cell, B-cell, and natural killer (NK)-cells and induction of NK cell activity against K562 chronic myeloid leukemia cells with modified citrus pectin - (Peer Reviewed Journal)
Ramachandran, C., Wilk, B.J., Hotchkiss, A.T., Chau, H.K., Eliaz, I., Melnick, S.J. 2011. Activation of human T-helper/inducer cell, T-cytotoxic/suppressor cell, B-cell, and natural killer (NK)-cells and induction of NK cell activity against K562 chronic myeloid leukemia cells with modified citrus pectin. BMC Complementary and Alternative Medicine. 11:59.
Physico-chemical characterization of a cellulosic fraction from sugar beet pulp - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Coffin, D.R., Cooke, P.H., Qi, P.X., Yadav, M.P., Hotchkiss, A.T. 2011. Physico-chemical characterization of a cellulosic fraction from sugar beet pulp. Cellulose. 18(3):787-801.
Inhibition by pectic oligosaccharides of the invasion of undifferentiated and differentiated Caco-2 cells by Campylobacter jejuni - (Peer Reviewed Journal)
Ganan, M., Collins, M., Rastall, R., Hotchkiss, A.T., Chau, H.K., Carrascosa, A.V., Martinez-Rodreguez, A.J. 2010. Inhibition by pectic oligosaccharides of the invasion of undifferentiated and differentiated Caco-2 cells by Campylobacter jejuni. International Journal of Food Microbiology. 137:181-185.
MALDI-TOF/TOF analysis of sugar beet pectin-protein complex - (Abstract Only)
Fractionation of sugar beet pulp by introducing ion-exchange groups - (Peer Reviewed Journal)
Simkovic, I., Nunez, A., Strahan, G.D., Yadav, M.P., Chau, H.K., Meddichi, R., Hicks, K.B. 2009. Fractionation of sugar beet pulp by introducing ion-exchange groups. Carbohydrate Polymers. 78:806-812.
Physico-chemical characterization of alkaline soluble polysaccharides from sugar beet pulp - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Cooke, P.H., Yadav, M.P., Hotchkiss, A.T. 2009. Physico-chemical characterization of alkaline soluble polysaccharides from sugar beet pulp. Food Hydrocolloids. 23:1554-1562.
Global structure of microwave-assisted flash extracted sugar beet pectin - (Peer Reviewed Journal)
Fishman, M., Chau, H.K., Cooke, P.H., Hotchkiss, A.T. 2008. Global structure of microwave-assisted flash extracted sugar beet pectin. 2008. Journal of Agriculture and Food Chemistry 56(4):1471-1478.
Molecular characteristics of corn fiber gum and their influence on its emulsifying properties - (Peer Reviewed Journal)
Yadav, M.P., Fishman, M.L., Chau, H.K., Johnston, D., Hicks, K.B. 2007. Molecular characteristics of corn fiber gum and their influence on its emulsifying properties. Cereal Chemistry Vol. 84, No. 2, p.175-180.
GLOBAL STRUCTURES OF HIGH METHOXYL PECTIN FROM SOLUTION AND IN GELS - (Peer Reviewed Journal)
Fishman, M.L., Cooke, P.H., Chau, H.K., Coffin, D.R., Hotchkiss, A.T. 2007. Global structures of high methoxyl pectin from solution and in gels. Biomacromolecules 8,No. 2, p.573-578.
PECTIN - NETWORK, CLUSTERS, MOLECULES - (Book / Chapter)
Fishman, M.L., Cooke, P.H., Chau, H.K., Coffin, D.R., Hotchkiss, A.T. 2006.Pectin: Networks, Clusters, and Molecules. In "Advances in Biopolymers: Molecules, Clusters, Networks and Interactions" M. L. Fishman, L. Wicker, and P. X. Qi (Eds.). ACS Symposiuim Series 935, American Chemical Society, Washington, DC, pp.201-214.
MICROWAVE ASSISTED EXTRACTION OF LIME PECTIN - (Peer Reviewed Journal)
Fishman, M.L., Chau, H.K., Hoagland, P.D., Hotchkiss, A.T. 2006. Microwave assisted extraction of lime pectin. Food Hydrocolloids Journal 20, p.1170-1177.
FLASH EXTRACTION OF SUGAR BEET PECTIN - (Abstract Only)
Fishman, M.L., Chau, H.K., Hotchkiss, A.T. 2005. Flash extraction of sugar beet pectin. Meeting Abstract, Pacifichem, International Chemical Congress of Pacific Basin Societies. Honolulu, Hawaii, December 15-20, AGRO 44.
MICROWAVE EXTRACTION OF PECTIN AND CHARACTERIZATION USING HIGH-PERFORMANCE SIZE EXCLUSION CHROMATOGRAPHY - (Abstract Only)
Suleiman, H., Chau, H.K., Fishman, M.L. Microwave extraction of pectin and characterization using high-performance size exclusion chromatography. Abstract for 37th Middle Atlantic Regional Meeting of the American Chemical Society, May 22-25, 2005.
GLOBAL STRUCTURE OF HIGH METHOXYL PECTIN DEPOSITED FROM SOLUTION AND IN SUGAR ACID GELS - (Abstract Only)
Fishman, M.L., Cooke, P.H., Chau, H.K., Coffin, D.R. Global structure of high methoxyl pectin deposited from solution and in sugar acid gels. Abstract, American Chemical Society 229th National Meeting, San Diego, CA, March 13-17, 2005. AGFD 19.
PECTIN NETWORKS, CLUSTERS AND MOLECULES - (Abstract Only)
Fishman, M.L., Cooke, P.H., Chau, H.K., Coffin, D.R., Hotchkiss, A.T. 2004.Pectin networks, clusters and molecules. Meeting Abstract 228th American Chemical Society National Meeting, Philadelphia, PA., August 22-26, 2004. AGFD:19.
MICROWAVE ASSISTED EXTRACTION OF LIME PECTIN - (Abstract Only)
Fishman, M.L., Chau, H.K., Hoagland, P.D., Hotchkiss, A.T. 2004. Microwave assisted extraction of lime pectin. Meeting Abstract. 227th American Chemical Society National Meeting, Anaheim, CA. March 27-April 1, 2004. AGFD:94.
FLASH EXTRACTION OF PECTIN FROM ORANGE ALBEDO BY STEAM INJECTION - (Abstract Only)
Fishman, M.L., Walker, P.N., Chau, H.K., Hotchkiss, A.T. Flash extraction of pectin from orange albedo by steam injection. Abstract, American Chemical Society 226th National Meeting, New York, NY, September 7-11, 2003.
A COMPARISON OF LIME AND ORANGE PECTIN BY HPSGC WITH MOLAR MASS AND VISCOSITY DETECTION - (Abstract Only)
Fishman, M.L., Chau, H.K., Coffin, D.R. A comparison of lime and orange pectin by hpsgc with molar mass and viscosity detection. Abstract. Villanova University, Villanova PA. April, 2003.
ISOLATION, CHARACTERIZATION AND PECTIN MODIFYING PROPERTIES OF A THERMALLY TOLERANT PECTIN METHYLESTERASE FROM CITRUS SINENSIS VAR. VALENCIA - (Abstract Only)
CAMERON, R.G., SAVARY, B.J., HOTCHKISS, A.T., FISHMAN, M.L., CHAU, H.K., GROHMANN, K. ISOLATION, CHARACTERIZATION AND PECTIN MODIFYING PROPERTIES OF A THERMALLY TOLERANT PECTIN METHYLESTERASE FROM CITRUS SINENSIS VAR. VALENCIA. AMERICAN SOCIETY OF PLANT BIOLOGISTS ANNUAL MEETING. 2003. AMERICAN SOCIETY OF PLANT BIOLOGISTS. PAPER NO. 253.
SEPARATION AND CHARACTERIZATION OF A SALT-DEPENDENT PECTIN METHYLESTERASE FROM CITRUS SINENSIS VAR. VALENCIA FRUIT TISSUE - (Peer Reviewed Journal)
CAMERON, R.G., SAVARY, B.J., HOTCHKISS, A.T., FISHMAN, M.L., CHAU, H.K., BAKER, R.A., GROHMANN, K. SEPARATION AND CHARACTERIZATION OF A SALT-DEPENDENT PECTIN METHYLESTERASE FROM CITRUS SINENSIS VAR. VALENCIA FRUIT TISSUE. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. 2003. v. 51(7). p. 2070-2075.
FLASH EXTRACTION OF PECTIN FROM ORANGE ALBEDO BY STEAM INJECTION - (Peer Reviewed Journal)
Biomacromolecules, V.4, No. 4, 2003. p.880-889.
ENZYMATIC MODIFICATION OF PECTIN TO INCREASE ITS CALCIUM SENSITIVITY WHILE PRESERVING ITS MOLECULAR WEIGHT - (Peer Reviewed Journal)
Hotchkiss, A.T., Savary, B.J., Cameron, R.G., Chau, H.K., Brouillette, J.N., Luzio, G.A., Fishman, M.L. 2002. Enzymatic modification of pectin to increase its calcium sensitivity while preserving its molecular weight. Journal of Agricultural and Food Chemistry 50: p.2931-2937.
MACROMOLECULAR CHARACTERISATION OF THREE BARLEY BETA-GLUCAN STANDARDS BY SIZE-EXCLUSION CHROMATOGRAPHY COMBINED WITH LIGHT SCATTERING AND VISCOMETRY: AN INTERLABORATORY STUDY. - (Peer Reviewed Journal)