Facilitating Effective Food Security Policy Reform

Food Security and Poverty, Downloads December 2008 - July 2009: 10,

Food Surpluses and Food Insecurity

Provides a historical overview of Israeli agricultural policy and examines the paradox of the creation and destruction of agricultural surpluses. Includes long-term recommendations aimed at overhauling the current system of agricultural subsidies

A Review of Dietary Zinc Recommendations

Background. Large discrepancies exist among the dietary zinc recommendations set by expert groups. Objective. To understand the basis for the differences in the dietary zinc recommendations set by the World Health Organization, the U.S. Institute of Medicine, the International Zinc Nutrition Consultative Group, and the European Food Safety Agency. Methods. We compared the sources of the data, the concepts, and methods used by the four expert groups to set the physiological requirements for absorbed zinc, the dietary zinc requirements (termed estimated and/or average requirements), recommended dietary allowances (or recommended nutrient intakes or population reference intakes), and tolerable upper intake levels for selected age, sex, and life-stage groups. Results. All four expert groups used the factorial approach to estimate the physiological requirements for zinc. These are based on the estimates of absorbed zinc required to offset all obligatory zinc losses plus any additional requirements for absorbed zinc for growth, pregnancy, or lactation. However, discrepancies exist in the reference body weights used, studies selected, approaches to estimate endogenous zinc losses, the adjustments applied to derive dietary zinc requirements that take into account zinc bioavailability in the habitual diets, number of dietary zinc recommendations set, and the nomenclature used to describe them. Conclusions. Estimates for the physiological and dietary requirements varied across the four expert groups. The European Food Safety Agency was the only expert group that set dietary zinc recommendations at four different levels of dietary phytate for adults (but not for children) and as yet no tolerable upper intake level for any life-stage group

Risks for public health related to the presence of tetrodotoxin (TTX) and TTX analogues in marine bivalves and gastropods

Peer reviewedPublisher PD

Food safety in food security and food trade:

CONTENTS: Overview / Laurian J. Unnevehr; Food Safety as a Public Health Issue for Developing Countries / Fritz K. K�ferstein; Mycotoxin Food Safety Risk in Developing Countries / Ramesh V. Bhat and Siruguri Vasanthi; Trends in Food Safety Standards and Regulation: Implications for Developing Countries / Julie A. Caswell; Food Safety Issues in International Trade / Spencer Henson; Balancing Risk Reduction and Benefits from Trade in Setting Standards / John Wilson and Tsunehiro Otsuki; Case Study: Guatemalan Raspberries and Cyclospora / Linda Calvin, Luis Flores, and William Foster; Case Study: Kenyan Fish Exports / Richard O. Abila; Case Study:The Shrimp Export Industry in Bangladesh / James C. Cato and S. Subasinge; Case Study: Reducing Pesticide Residues on Horticultural Crops / George W. Norton, Guillermo E. Sanchez, Dionne Clarke-Harris, and Halimatou Koné Traoré; Case Study: India Responds to International Food Safety Requirements / Shashi Sareen; Case Study: Supermarkets and Quality and Safety Standards for Produce in Latin America / Julio A. Berdegué, Fernando Balsevich, Luis Flores, Denise Mainville, and Thomas Reardon; Case Study: Beef industry in China / Colin G. Brown and Scott A.Waldron; Case Study:The Poultry Industry in Colombia / Miguel I. Gómez, Diego M. Sierra, and Daisy Rodriguez; Case Study: Reducing Mycotoxins in Brazilian Crops / Elisabete Salay; Food Safety and GM Crops: Implications for Developing-Country Research / Joel I. Cohen, Hector Quemada, and Robert Frederick; Food Safety Policy Issues for Developing Countries / Laurian J. Unnevehr, Lawrence Haddad, and Christopher Delgado.food security, Food safety, trade, health,

Risks to human and animal health related to the presence of deoxynivalenol and its acetylated and modified forms in food and feed

Peer reviewedPublisher PD

Polysaccharide food matrices for controlling the release, retention and perception of flavours

Polysaccharides have many roles across both the food and pharmaceutics industries. They are commonly used to enhance viscosity, stabilise emulsions and to add bulk to food products. In the pharmaceutics industry, they are also utilised for their mucoadhesive nature. Mucoadhesive polysaccharides can facilitate retention of active ingredients at mucosal sites for a prolonged time and formulations can be designed to control their release and bioavailability. This study investigates how polysaccharides, with differing physicochemical properties (e.g. functional groups and molecular weight), affect the release and perception of flavour compounds from films. Polysaccharide films were prepared using either high or low viscosity carboxymethyl cellulose, pullulan or hydroxypropyl methylcellulose. Glucose, vanillin or a combination of both was also added to the films to assess the effect of flavour release and perception over time. The films were assessed for glucose release in vitro, swelling and disintegration times, and mucoadhesive ability. Results show that flavour release and perception depend on the polysaccharide matrix properties; this includes how quickly the films dissolves, the rate of release of tastant compounds, and the mucoadhesive strength of the polysaccharide. A higher viscosity and slower disintegration time resulted in slower release of glucose in vitro and flavour perception in vivo