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Protein quality evaluation

Report of Joint FAO/WHO Expert Consultation, Bethesda (USA), 4-8 Dec 1989

Year of publication 1991

Author Nutrition Division

Product type Book (stand-alone)

Category Technical book

Series title FAO Food and Nutrition Paper

Series number 0254-4725|1014-2908

Edition 1

Language English

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    Dietary protein quality evaluation in human nutrition
    Report of an FAO Expert Consultation, 31 March - 2 April 2011, Auckland, New Zealand
    2013
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    Protein is supplied by food ingredients, whole foods, sole-source foods and mixed diets and the match between dietary supply and human protein needs is vital to support the health and well-being of human populations. Since 1989 the Protein Digestibility Corrected Amino Acid Score (PDCAAS) method for evaluating protein quality has been used widely. However, limitations of PDCAAS have been recognised and new research and its application vis-à-vis other methods of estimating dietary protein quali ty. This report of the FAO Expert Consultation on Protein Quality Evaluation in Human Nutrition considers the effectiveness and concerns about the PDCAAS method for evaluating protein quality concerning the PDCAAS method. A new method of dietary quality evaluation called DIAAS is recommended for application in practice.
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    Research approaches and methods for evaluating the protein quality of human foods
    Report of a FAO Expert Working Group, 2 – 5 March 2014, Bangalore, India
    2014
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    Following the 2011 FAO Expert Consultation on dietary protein quality evaluation in human nutrition, a working group was convened in Bangalore, India from 2-5 March 2014 to explore and develop means for producing more data accessible worldwide of ileal amino acid digestibility of human foods, particularly for foods consumed in low income countries. The paucity of data, especially from human studies, remains an obstacle to the practical implementation of the DIASS method for evaluating protein qu ality. The report considers protocols including recommended best practice for pig-based, rat-based and human based assays for true ileal amino acid digestibility determinations to support the generation of new data. The working group considered the development of protocols that would allow non-invasive measures of ileal amino acid digestibility in humans with primary reliance on novel approaches using minimally invasive stable isotopes tracers. Such an exercise would need to involve the determin ation of ileal protein and amino acid digestibility in both humans and animal models to allow the development of robust inter-species protein digestibility predictions.
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    Los fertilizantes y su uso
    Una guía de bolsillo para los oficiales de extensión
    2002
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    Esta guía fue preparada originariamente para uso de los oficiales de extensión que trabajaban para el Programa de Fertilizantes de la FAO. La primera edición fue publicada en 1965, la tercera edición en 1978, y su reimpresión en 1986. Para esta nueva, edición 2002, la mayor parte del texto de 1978 ha sido completamente revisado. La información sobre nuevos desarrollos técnicos y conocimientos ha sido incorporada. La guía explica la necesidad de los fertilizantes minerales, su rol e n las plantas y las características del suelo que son importantes para la fertilización. Una nueva sección aporta las recomendaciones generales para cultivos seleccionados. El capítulo sobre «Cómo determinar las necesidades de fertilizantes» incluye información sobre los síntomas de deficiencia y análisis de suelo y de los tejidos de las plantas. Un capítulo es dedicado a explicar y dar sugerencias sobre la presentación de demostraciones de fertilizantes y de las técnicas de ex tensión en general. Las recomendaciones para cultivos seleccionados están basadas en gran parte en IFA «Manual Mundial sobre el Uso de Fertilizantes», 1992. Una información más detallada se encuentra en el Manual disponible en IFA, París *. Inclusive la información mucho más completa dada en el Manual a menudo requerirá modificaciones por el usuario para tomar en cuenta las recomendaciones oficiales de los fertilizantes para los cultivos y suelos locales.
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