Abstract
This chapter presents the structural and physicochemical characteristics, functional properties, and main applications of two exudate gums: gum arabic (Acacia senegal) and mesquite gum (Prosopis velutina). Gum arabic is the oldest and best known of all natural gums. It possesses physicochemical characteristics and functional properties that make it unique in the international trade of food, pharmaceutical, textile, and other industries. Mesquite gum is other exudate less known in the international market, but it has potential applications in food and other industries. The chemical structure and functional properties of mesquite gum are comparable with gum arabic. It is a good emulsifier and stabilizer of oil–water emulsions, and it may be compared with gum arabic for such application. The information contained in this chapter considers that mesquite gum can be a suitable replacement of gum arabic in arid regions of the world where Prosopis trees have widespread occurrence.
Keywords
Polysaccharide Exudates Gum arabic Mesquite gum Chemical structure Functional properties Industrial applicationsReferences
- Acedo-Carrillo JI, Rosas-Durazo A, Herrera-Urbina R, Rinaudo M, Goycoolea FM, Valdez MA (2006) Zeta potential and drop growth of oil in water emulsions stabilized with mesquite gum. Carbohydr Polym 65:327–336Google Scholar
- Akher MA, Smith F, Spriestersbach D (1952) The constitution of mesquite gum. Part IV. Determination of the structure of the amide of 6-β-(4-methyl d-Glucopyruronosyl) α-methyl-d-galactopyranoside. J Chem Soc 697:3637–3640Google Scholar
- Akiyama Y, Eda S, Kato K (1984) Gum arabic is a kind of arabinogalactan-protein. Agric Biol Chem 48:235–237Google Scholar
- Al-Assaf S, Phillips GO, Williams PA (2005a) Studies on acacia exudate gums. Part I: the molecular weight of Acacia senegal gum exudate. Food Hydrocoll 19:647–660Google Scholar
- Al-Assaf S, Phillips GO, Williams PA (2005b) Studies on acacia exudate gums. Part II: Molecular weight comparison of the Vulgares and Gummiferae series of Acacia gums. Food Hydrocoll 19:661–667Google Scholar
- Al-Assaf S, Phillips GO, Aoki H, Sasaki Y (2007) Characterization and properties of Acacia senegal (L.) Willd. var. senegal with enhanced properties (Acacia (sen) SUPER GUM™): part 1-controlled maturation of Acacia senegal var. senegal to increase viscoelasticity, produce a hydrogel form and convert a poor into a good emulsifier. Food Hydrocoll 21:319–328Google Scholar
- Al-Assaf S, Phillips GO, Williams PA (2012) Structural changes following industrial processing of acacia gums. In: Kennedy JF, Phillips GO, Williams PA (eds) Gum arabic. RCS Publishing, London, pp 153–168Google Scholar
- Al-Assaf S, Sakata M, McKenna C, Aoki H, Phillips GO (2009) Molecular associations in acacia gums. Struct Chem 20:325–336Google Scholar
- Alftrén J, Peñarrieta JM, Bergenståhl B, Nilsson L (2012) Comparison of molecular and emulsifying properties of gum arabic and mesquite gum using asymetrical flow field-flow fractionation. Food Hydrocoll 26:54–62Google Scholar
- Anderson DMW, McDougall FJ (1987a) Degradative studies of gum arabic [Acacia senegal (L.) Willd.] with special reference to the fate of the amino acids present. Food Addit Contam 4:247–255Google Scholar
- Anderson DMW, McDougall FJ (1987b) Degradative studies of highly proteinaceous Acacia gum exudates. Food Addit Contam 4:257–266Google Scholar
- Anderson DMW, McDougall FJ (1987c) The amino acid composition and quantitative sugar-amino acid relationships in sequential Smith-degradation products from gum arabic [Acacia senegal (L.) Willd.]. Food Addit Contam 4:125–132Google Scholar
- Anderson E, Otis L (1930) The composition and structure of mesquite gum. J Am Chem Soc 52:4461–4470Google Scholar
- Anderson DMW, Brown Douglas DM, Morrison NA, Weiping W (1990) Specifications for gum arabic (Acacia senegal); analytical data for samples collected between 1904 and 1989. Food Addit Contam 7:303–321Google Scholar
- Anson ML, Pader M (1958) Method of making protein food product. US Patent 2,833,651Google Scholar
- Aoki H, Al-Assaf S, Katayama T, Phillips GO (2007) Characterization and properties of Acacia senegal (L.) Willd. var. senegal with enhanced properties (Acacia (sen) SUPER GUMTM): part 2 – mechanism of the maturation process. Food Hydrocoll 21:329–337Google Scholar
- Aspinall GO, Whitehead CC (1970a) Mesquite gum. I. The 4-O-methylglucuronogalactan core. Can J Chem 48:3840–3849Google Scholar
- Aspinall GO, Whitehead CC (1970b) Mesquite gum. II. The arabinan peripheral chains. Can J Chem 48:3850–3855Google Scholar
- Balderrama JR (1998) Caracterización fisicoquímica y análisis del aprovechamiento de la goma chúcata y galactomanana del mezquite (Prosopis spp.) como posibles hidrocoloides alimentarios. Tesis de Licenciatura, Universidad de Sonora. Hermosillo, SonoraGoogle Scholar
- Bandyopadhyaya R, Native Roth E, Regev O, Yerushalmi-rozen R (2002) Stabilization of individual carbon nanotubes in aqueous solutions. Nano Lett 2:25–28Google Scholar
- Banerjee SS, Chen DH (2007a) Fast removal of copper ions by gum arabic modified magnetic nano-adsorbent. J Hazard Mater 147:792–799Google Scholar
- Banerjee SS, Chen DH (2007b) Magnetic nanoparticles grafted with cyclodextrin for hydrophobic drug delivery. Chem Mater 19:6345–6349Google Scholar
- Banerjee SS, Chen DH (2008) Cyclodextrin conjugated magnetic colloidal nanoparticles as a nanocarrier for targeted anticancer drug delivery. Nanotechnology 19:1–7Google Scholar
- Beristain CI, Vernon-Carter EJ (1994) Utilization of mesquite (Prosopis juliflora) gum as emulsion stabilizing agent for spray-dried encapsulated orange peel oil. Dry Technol 12:1727–1733Google Scholar
- Beristain CI, Vernon-Carter EJ (1995) Studies on the interaction of mesquite (Prosopis juliflora) gum as emulsion stabilizing agents for spray-dried encapsulated orange peel oil. Dry Technol 13:455–461Google Scholar
- Beristain CI, Azuara E, Garcia HS, Vernon-Carter EJ (1996) Kinetic model for water/oil absorption of mesquite gum (Prosopis juliflora) and gum arabic (Acacia senegal). Int J Food Sci Technol 3:379–386Google Scholar
- Blake SM, Deeble DJ, Phillips GO, Plessy AD (1988) The effect of sterilizing doses of g-irradiation on the molecular weight and emulsifying properties of gum arabic. Food Hydrocoll 2:407–415Google Scholar
- Boothby D (1983) Gummosis of stone-fruit trees and their fruits. J Sci Food Agric 34:1–7Google Scholar
- Chikamai BN, Banks WB, Anderson DMW, Weiping W (1996) Processing of gum arabic and some new opportunities. Food Hydrocoll 10:309–316Google Scholar
- Connolly S, Fenyo TC, Vandevelde MC (1987) Heterogeneity and homogeneity of an arabinogalactan-protein-Acacia senegal gum. Food Hydrocoll 1:477–480Google Scholar
- Connolly S, Fenyo J-C, Vandevelde MC (1988) Effect of a proteinase on the macromolecular distribution of Acacia senegal gum. Carbohydr Polym 8:23–32Google Scholar
- Cuneen JI, Smith F (1948a) The constitution of mesquite gum. Part I. Isolation of 6- and 4-glucuronosidogalactose. J Chem Soc 227:1141–1146Google Scholar
- Cuneen JI, Smith F (1948b) The constitution of mesquite gum. Part II. Methylated mesquite gum. J Chem Soc 228:1146–1157Google Scholar
- Dziezak JD (1991) A focus on gums. Food Technol 45:116–132Google Scholar
- Elrayah HH, Osman ME, Al-Assaf S, Ali HI (2012) An overview of pre and post harvest practices of gum arabic in Sudan. In: Kennedy JF, Phillips GO, Williams PA (eds) Gum arabic. RSC Publishing, London, pp 29–38Google Scholar
- Fauconnier ML, Blecker C, Groyne J, Razafindralambo H, Vanzeveren E, Marlier M, Paquot M (2000) Characterization of two Acacia gums and their fractions using a Langmuir film balance. J Agric Food Chem 48:2709–2712Google Scholar
- Felger RS (1977) In: Simpson BB (ed) Mesquite: its biology in two desert scrub ecosystems. Dowden, Hutchinson & Ross, New YorkGoogle Scholar
- Felger RS, Moser MB (1974) Seri Indian pharmacopoeia. Econ Bot 28:414–436Google Scholar
- Fincher GB, Stone BA, Clarke AE (1983) Arabinogalactan-proteins: structure, biosynthesis and function. Annu Rev Plant Physiol 34:47–70Google Scholar
- Flores-Domínguez A, Nieto-Villalobos Z, Constantino-Casas F, Vernon-Carter EJ, Pedrosa-Islas R, Janczur M (2000) Estudio toxicológico multigeneracional de la goma de mezquite utilizando ratas Wistar. In: Frías-Hernández JT, Olalde-Portugal V, Vernon-Carter EJ (eds) El mezquite árbol de usos múltiples. Estado actual del conocimiento en México. Unversidad de Guanajuato, México, pp 227–247Google Scholar
- Fuyama H, Tsuji K (1981) Oil-in-water organophosphorus insecticidal emulsion. Sumitomo Chemical Company, Ltd. US Patent 4303640 AGoogle Scholar
- Glicksman M (1969) Gum technology in the food industry. Academic, New YorkGoogle Scholar
- Glicksman M (1983) In: Glicksman M (ed) Food hydrocolloids. CRC Press, Boca Raton, p 7Google Scholar
- Goodrum LJ, Patel A, Leykam JF, Kieliszewskid MJ (2000) Gum arabic glycoprotein contains glycomodules of both extension and arabinogalactan-glycoproteins. Phytochemistry 54:99–106Google Scholar
- Goycoolea FM, Morris ER, Richardson RK, Bell AE (1995) Solution rheology of mesquite gum in comparison with gum arabic. Carbohydr Polym 27:37–45Google Scholar
- Goycoolea FM, Calderón de la Barca AM, Balderrama JR, Valenzuela JR (1997) Immunological and functional properties of the exudate gum from northwestern Mexican mesquite (Prosopis spp.) in comparison with gum arabic. Int J Biol Macromol 21:29–36Google Scholar
- Goycoolea FM, de la Barca AM C, Balderrama JG, Valenzuela JR, Hernández G (1998) Processing and functional behaviour of low-tannin mesquite gum. In: Williams PA, Phillips GO (eds) Gums and stabilizers for the food industry, vol 9. The Royal Society of Chemistry, Cambridge, pp 305–313Google Scholar
- Goycoolea FM, Cárdenas A, Hernández G, Lizardi J, Álvarez G, Soto FJ (2000) Polisacáridos aislados del mezquite y de otras plantas del desierto. II Simp. Int. Utilización y Aprovechamiento de la Flora Silvestre de Zonas Áridas. Universidad de Sonora, Hermosillo, pp 245–260Google Scholar
- Howes FN (1949) Vegetable gums and resins. The Chronica Botanica/Stechert-Hafner, Waltham/New York CityGoogle Scholar
- Idris OHM, Haddad GM (2012) Gum arabic’s (gum acacia’s) journey from tree to end user. In: Kennedy JF, Phillips GO, Williams PA (eds) Gum arabic. RSC Publishing, London, pp 3–17Google Scholar
- Idris OHM, Williams PA, Phillips GO (1998) Characterisation of gum from Acacia senegal trees of different age and location using multidetection gel permeation chromatography. Food Hydrocoll 12:379–388Google Scholar
- Imeson A (1992) Exudate gums. In: Imeson A (ed) Thickening and gelling agents for food. Chapman and Hall, London, pp 66–97Google Scholar
- INEGI (2012) Balanza comercial de mercancías de México, Anuario estadístico. Instituto Nacional de Estadística y Geografía. ISBN 978-607-494-711-3. www.inegi.org.mx
- Islam AM, Phillips GO, Sljivo MJ, Williams PA (1997) A review of recent developments on the regulatory, structural and functional aspects of gum arabic. Food Hydrocoll 11:493–505Google Scholar
- Jiménez-Aguilar DM, Ortega-Regules AE, Lozada-Ramírez JD, Pérez-Pérez MCI, Vernon-Carter EJ, Welti-Chanes J (2011) Color and chemical stability of spray-dried blueberry extract using mesquite gum as wall material. J Food Compos Anal 24:889–894Google Scholar
- Kannan R, Rahing V, Cutler C, Pandrapragada R, Katti KK, Kattumuri V, Robertson JD, Casteel SJ, Jurisson S, Smith C, Boote E, Katti KV (2006) Nanocompatible chemistry toward fabrication of target-specific gold nanoparticles. J Am Chem Soc 128:11342–11343Google Scholar
- Kattumuri V, Katti K, Bhaskaran S, Boote EJ, Casteel SW, Fent GM, Katti KV (2007) Gum arabic as a phytochemical construct for the stabilization of gold nanoparticles: in vivo pharmacokinetics and X-ray-contrast-imaging studies. Small 3:333–341Google Scholar
- Kenyon MM (1995) Modified starch, maltodextrin, and corn syrup solids as wall materials for food encapsulation. Am Chem Soc Symp Ser 590:42–50, ISBN: 0841231648Google Scholar
- Khanna M, Dwivedi AK, Singh S, Soni PL (1997) Mesquite gum (Prosopis juliflora): potential binder in tablet dosage forms. J Sci Ind Res (India) 56:366–368Google Scholar
- Loeza-Corte JM, Verde-Calvo JR, Cruz-Sosa F, Vernon-Carter EJ, Huerta-Ochoa S (2007) l-arabinose production by hydrolysis of mesquite gum by a crude extract with l-arabinofuranosidase activity from Aspergillus niger. Revista Mexicana de Ingeniería Química AMIDIQ 6:259–265Google Scholar
- López-Franco YL, Valdez MA, Hernández J, Calderón de la Barca AM, Rinaudo M, Goycoolea FM (2004) Macromolecular dimensions and mechanical properties of monolayer films of Sonorean mesquite gum. Macromol Biosci 4:865–874Google Scholar
- López-Franco YL, Calderón de la Barca AM, Valdez MA, Peter MG, Rinaudo M, Chambat G, Goycoolea FM (2008) Structural characterization of mesquite (Prosopis velutina) gum and its fractions. Macromol Biosci 8:749–757Google Scholar
- López-Franco YL, Córdova-Moreno RE, Goycoolea FM, Valdez MA, Juárez-Onofre J, Lizardi-Mendoza J (2012) Classification and physicochemical characterization of mesquite gum (Prosopis spp.). Food Hydrocoll 26:159–166Google Scholar
- López-Franco YL, Bainori-Vasquez F, Sánchez Castañeda AK, Martínez-Robinson K, Madera-Santana T, Toledo-Guillén AR, Lizardi-Mendoza J (2013) Chemical and structural composition of arabinogalactan proteins (AGP) of the mesquite (Prosopis spp.). In: Hiroto S, Ren N (eds) Legumes: types, nutritional composition and health benefits. Nova Science, New York, pp 257–270Google Scholar
- Nussinovitch A (1997) Hydrocolloid application−gum technology in the food and other industries. Blackie Academic & Professional, London, 354 p. ISBN 0-412-62120-7Google Scholar
- Nussinovitch A (2010) Role and source of exudates gums. In: Plant gum exudates of the world: sources, distribution, properties and applications. Taylor & Francis Group, London, pp 1–20Google Scholar
- Orozco-Villafuerte J, Cruz-Sosa F, Ponce-Alquicira E, Vernon-Carter EJ (2003) Mesquite gum: fractionation and characterization of the gum exuded from Prosopis laevigata obtained from plant tissue culture and from wild trees. Carbohydr Polym 54:327–333Google Scholar
- Orozco-Villafuerte J, Buendía-González L, Cruz-Sosa F, Vernon-Carter EJ (2005) Increased mesquite gum formation in nodal explants cultures after treatment with a microbial biomass preparation. Plant Physiol Biochem 43:802–807Google Scholar
- Ortega-Ruiz LI (2013) Incorporación de goma de mezquite (Prosopis spp.) en la estabilización de nanopartículas magnéticas. Tesis de Maestría en Ciencias. Centro de Investigación en Alimentación y Desarrollo, A. C. Hermosillo, Sonora. MéxicoGoogle Scholar
- Osman ME, Menzies AR, Williams PA, Phillips GO, Baldwin TC (1993a) The molecular characterisation of the polysaccharide gum from Acacia senegal. Carbohydr Res 246:303–318Google Scholar
- Osman ME, Williams PA, Menzies AR, Phillips GO (1993b) Characterization of commercial samples of gum arabic. J Agric Food Chem 41:71–77Google Scholar
- Osman ME, Menzies AR, Martin BA, Williams PA, Phillips GO, Baldwin TC (1995) Characterization of gum arabic fractions obtained by anion-exchange chromatography. Phytochemistry 38:409–417Google Scholar
- Pedroza-Islas R, Alvarez-Ramirez J, Vernon-Carter EJ (2000) Using biopolymer blends for shrimp feedstuff microencapsulation − II: dissolution and floatability kinetics as selection criteria. Food Res Int 33:119–124Google Scholar
- Pedroza-Islas R, Gallardo P, Vernon-Carter EJ, García-Galano T, Rosas C, Pascual C, Gaxiola G (2004) Growth, survival, quality and digestive enzyme activities of larval shrimp fed microencapsulated, mixed and live diets. Aquac Nutr 10:167–173Google Scholar
- Perez-Alonso C, Báez-González JG, Beristain CI, Vernon-Carter EJ (2003) Estimation of the activation energy of carbohydrate polymers blends as selection criteria for their use as wall material for spray-dried microcapsules. Carbohydr Polym 53:197–203Google Scholar
- Pérez-Orozco JP, Barrios-Salgado E, Roman-Guerrero A, Pedroza-Islas R (2011) Interaction of mesquite gum–chitosan at the interface and its influences on the stability of multiple emulsions W1/O/W2. Rev Mexicana Ing Química AMIDIQ 10:487–499Google Scholar
- Phillips GO (1998) Acacia gum (gum arabic): a nutritional fibre; metabolism and calorific value. Food Addit Contam 15:251–264Google Scholar
- Phillips AO, Phillips GO (2011) Biofunctional behaviour and health benefits of a specific gum arabic. Food Hydrocoll 25:165–169Google Scholar
- Picton L, Bataille I, Muller G (2000) Analysis of a complex polysaccharide (gum arabic) by multiangle laser light scattering coupled on line to size exclusion chromatography and flow field flow fractionation. Carbohydr Polym 42:23–31Google Scholar
- Qi W, Fong C, Lamport DTA (1991) Gum arabic glycoprotein is a twisted hairy rope. A new model based on O-galactosylhy droxyproline as the polysaccharide attachment site. Plant Physiol 96:848–855Google Scholar
- Randall RC, Phillips GO, Williams PA (1988) The role of the proteinaceous component on the emulsifying properties of gum arabic. Food Hydrocoll 2:131–140Google Scholar
- Randall RC, Phillips GO, Williams PA (1989) Fractionation and characterization of gum from Acacia senegal. Food Hydrocoll 3:65–75Google Scholar
- Ray AK, Bird PB, Iacobucci GA, Clark BC Jr (1995) Functionality of gum arabic. Fractionation, characterization and evaluation of gum fractions in citrus oil emulsions and model beverages. Food Hydrocoll 9:123–131Google Scholar
- Rinaudo M, Goycoolea FM, Valdez MA (2008) Emulsifying properties of mesquite gum. Foods Foods Ingredients J Jpn 213:239–248Google Scholar
- Roque ACA, Wilson OC Jr (2008) Adsorption of gum arabic on bioceramic nanoparticles. Mater Sci Eng C 28:443–447Google Scholar
- Ruiz-Ramos JO, Pérez-Orozco JP, Báez-González JG, Bósquez-Molina E, Pérez-Alonso C, Vernon-Carter EJ (2006) Interrelationship between the viscoelastic properties and effective moisture diffusivity of emulsions with the water vapor permeability of edible films stabilized by mesquite gum-chitosan complexes. Carbohydr Polym 64:355–363Google Scholar
- Sanchez C, Schmitt C, Kolodziejczyk E, Lapp A, Gaillard C, Renard D (2008) The acacia gum arabinogalactan fraction is a thin oblate ellipsoid: a new model based on small angle neutron scattering and ab initio calculation. Biophys J 94:629–639Google Scholar
- Secretaría de Salud (1996) Comunicación DGCSB/401/0286/96. MéxicoGoogle Scholar
- Secretaría de Salud (2012) DIARIO OFICIAL (Cuarta Sección). Anexo X Coadyuvantes de elaboración. Lunes 16 de julio de 2012. www.salud.gob.mx/cdi/nom/compi/Acuerdo_aditivos_160712.pdf
- Shuman AC (1960) Theoretical aspects of hydrocolloids in controlling crystal structure in foods physical functions of hydrocolloids. Adv Chem Ser 25:59–63Google Scholar
- Tomás SA, Cruz-Orea A, Stolik S, Pedroza-Islas R (2004) Determination of the thermal diffusivity of edible films. Int J Thermophys 25:611–619Google Scholar
- Tomás SA, Bosquez-Molina E, Stolik S, Sánchez F (2005a) Effects of mesquite gum-candelilla wax based edible coating on the quality of guava fruit (Psidium guajava L.). J Phys IV France 125:889–892Google Scholar
- Tomás SA, Saavedra R, Cruz A, Pedroza-Islas R, San Martín E (2005b) Study of water vapour permeability of protein and gum based edible films by a photothermal method. J Phys IV France 125:893–895Google Scholar
- Umoren SA, Obot IB, Ebenso EE, OkaforPC OO, Oguzie EE (2006) Gum arabic as a potential corrosion inhibitor for aluminium in alkaline medium and its adsorption characteristics. Anti-Corrosion Methods Mater 53:277–282Google Scholar
- Velikov KP, Zegers GE, van Blaaderen A (2003) Synthesis and characterization of large colloidal silver particles. Langmuir 19:1384–1389Google Scholar
- Verbeken D, Dierckx S, Dewettinck K (2003) Exudate gums: occurrence, production, and applications. Appl Microbiol Biotechnol 63:10–21Google Scholar
- Vernon-Carter EJ, Sherman P (1980) Rheological properties and applications of mesquite tree (Prosopis juliflora) gum. 1. Rheological properties of aqueous mesquite gum solutions. J Text Stud 11:339–349Google Scholar
- Vernon-Carter EJ, Gómez SA, Beristain CI, Mosqueira G, Pedroza-Islas R, Moreno-Terrazas RC (1996) Color degradation and coalescence kinetics of aztec marigold oleoresin-in-water emulsions stabilized by mesquite or arabic gums and their blends. J Text Stud 27:625–641Google Scholar
- Vernon-Carter EJ, Pedroza-Islas R, Beristain CI (1998) Stability of Capsicum annum oleoresin-in-water emulsions containing Prosopis and Acacia gums. J Text Stud 29:553–567Google Scholar
- Vernon-Carter EJ, Beristain CI, Predroza-Islas R (2000) Mesquite gum (Prosopis gum). In: Doxastakis G, Kiosseoglou V (eds) Developments in food science, vol 41, Novel macromolecules in food systems. Elsevier, Amsterdam, pp 217–238Google Scholar
- Wang WP, Anderson DMW (1994) Non-food applications of tree gum exudates. Chem Ind For Prod 14:67–76Google Scholar
- Whistler RL (1993) Exudates gums, gum arabic. In: Whistler RL, BeMiller JN (eds) Industrial gums polysaccharides and their derivatives. Academic, San Diego, pp 309–339Google Scholar
- Whistler RL, BeMiller JN (1973) Industrial gums, 2nd edn. Academic, New YorkGoogle Scholar
- White EV (1946) The constitution of mesquite gum. I. The methanolysis products of methylated mesquite gum. J Am Chem Soc 68:272–275Google Scholar
- White EV (1947a) The constitution of mesquite gum. II. Partial hydrolysis of mesquite gum. J Am Chem Soc 69:622–623Google Scholar
- White EV (1947b) The constitution of mesquite gum. III. Hexamethyl-3-glucuronosido-methyl-galactoside methyl ester. J Am Chem Soc 69:2264–2266Google Scholar
- White EV (1948) The constitution of mesquite gum. IV. 4-methoxy-d-glucuronic acid. J Am Chem Soc 70:367–369Google Scholar
- Williams PA, Phillips GO (2000) Gum arabic. In: Phillips GO, Williams PA (eds) Handbook of hydrocolloids. Woodhead, Cambridge, pp 155–168Google Scholar
- Williams PA, Phillips GO, Randall RC (1990a) Structure-function relationships of gum arabic. In: Phillips GO, Wedlock DJ, Williams PA (eds) Gums and stabilizers for the food industry, vol 5. IRL Press at Oxford University Press, Oxford, pp 25–36Google Scholar
- Williams PA, Phillips GO, Stephen AM (1990b) Spectroscopic and molecular comparisons of three fractions from Acacia senegal gum. Food Hydrocoll 4:305–311Google Scholar
- Williams DN, Gold KA, Holoman TRP, Ehrman SH, Wilson OC Jr (2006) Surface modification of magnetic nanoparticles using gum arabic. J Nanopart Res 8:749–753Google Scholar
- Wilson Jr OC, Blair E, Kennedy S, Rivera G, Mehl P (2008) Surface modification if magnetic nanoparticles with oleylamine and gum arabic. Mater Sci Eng C 28:438-442Google Scholar