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Water productivity and food security: current situation and future options Texte intégral
2012 | 2003
Cai, Ximing; Rosegrant, Mark W. | http://orcid.org/0000-0001-6371-6127 Rosegrant, Mark;
Non-PR | IFPRI4 | EPTD
Afficher plus [+] Moins [-]Water vapour sorption isotherms and the caking of food powders Texte intégral
2003
Mathlouthi, M. | Rogé, B.
Water vapour sorption isotherms describe the relationship between water content and water activity. Depending on the nature of food powder (crystalline or amorphous), the shape of isotherm is different. Mostly food powders have complex structures, including potentially crystallisable solutes such as sugars, which show changes in crystallinity during the adsorption of water. Even for such an apparently simple system as crystalline sugar, numerous factors affect the adsorption of water vapour and, as a consequence, the storage stability. The presence of a thin film of saturated solution at the surface of the crystal, grain size distribution and the inclusion of mother liquor droplets in the crystal are some of the factors which perturb the equilibrium relative humidity of sugar and its aptitude to caking. These conditions were carefully studied at the level of the laboratory and in a pilot silo. Conditions of "decaking" (recovering a flowing sugar after caking) were also established. In the case of noncrystalline powders, water activity, together with glass transition temperature, is important to determine if it is necessary to interpret the origin of the formation of bridges between food powder particles and the caking phenomenon.
Afficher plus [+] Moins [-]Integrated land and water management for food and environmental security Texte intégral
2003
Penning de Vries, Frits W.T. | Acquay, H. | David, S. | Scherr, Sara J. | Valentin, Christian | Cofie, Olufunke O.
Ministerial Meeting on "Water for Food and Agriculture". Issue paper
2003
Integrated land and water management for food and environmental security Texte intégral
2003
Penning de Vries, Frits W. T. | Acquay, H. | Molden, David | Scherr, S. J. | Valentin, Christian | Cofie, Olufunke
Will the world run dry? global water and food security Texte intégral
2012 | 2003
Rosegrant, Mark W.; Cai, Ximing; Cline, Sarah A. | http://orcid.org/0000-0001-6371-6127 Rosegrant, Mark;
PR | ISI; IFPRI3; Environment and Natural Resource Management | EPTD
Afficher plus [+] Moins [-]Will the world run dry? global water and food security Texte intégral
2003
Rosegrant, Mark W. | Cai, Ximing | Cline, Sarah A.
The use of electrolyzed acid water in food processing environment
2003
Izumi, H. (Kinki Univ., Higashiosaka, Osaka (Japan))
Integrated land and water management for food and environment security
2003
Penning de Vries, F.W.T. | International Water Management Inst., Colombo (Sri Lanka) eng | Acquay, H. | Molden, D. | Scherr, S.J. | Valentin, C. | Cofie, O.
Summary (En) | Gift
Afficher plus [+] Moins [-]Food security and sustainable agriculture in India: the water management challenge
2003
Kumar, M. Dinesh
