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Topic: PDCAAS

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	Protein Digestibility Corrected Amino Acid Score PDCAAS
		The Protein Digestibility Corrected Amino Acid Score (PDCAAS) is superior to other methods for evaluating the protein quality of food proteins for humans because it measures the quality of a protein based on the amino acid requirements of a 2- to 5-year old child (the most demanding age group), adjusted for digestibility.
		PDCAAS is based on a food protein's amino acid content, its true digestibility, and its ability to supply indispensable amino acids in amounts adequate to meet the amino acid requirements of a 2- to 5-year old child, the age group used as the standard.
		PDCAAS is based on human amino acid requirements, which makes it more appropriate for humans than a method based on the amino acid needs of animals.
	solaeliving.com /performancenutrition/highqualityprotein/pdcaas.jsp (713 words)

	Protein - Wikipedia, the free encyclopedia
		When both are eaten in roughly equal quantities in a diet, the PDCAAS of the combined constituent is 1.0, because each constituent's protein is complemented by the other.
		This means that the relevant PDCAAS is not that of any single meal, but that of two or three days' worth of food.
		Considering the law of large numbers, this PDCAAS will be much closer to 1, if a variety of plant proteins is consumed.
	en.wikipedia.org /wiki/Protein (2283 words)

	pti health claim page 73 (Site not responding. Last check: 2007-10-16)
		The PDCAAS is recognized by the Food and Agriculture Organization and the World Health Organization as a more accurate standard for assessing protein quality than the previously used PER.
		The PDCAAS takes into account protein digestibility, amino acid profile, and the ability of the amino acid profile to meet the needs of 2-5 year old children, the population subgroup having the highest protein needs other than infants.
		Using the PDCAAS, the protein quality of isolated soy protein is identical to that of casein and egg white, and higher than that of proteins found in beef, kidney beans, pinto beans, lentils, peanuts, and wheat (FAOIWHO, 1991).
	www.soyonlineservice.co.nz /pt73.html (589 words)

	Anabolic Evolution - Article: Which proteins are the best. (Site not responding. Last check: 2007-10-16)
		The PDCAAS was introduced as a more accurate way to evaluate protein quality for humans, because it uses human, not rat, amino acid requirements to calculate the amino acid score.
		Although the PDCAAS method is the internationally recognised standard for comparing proteins for human consumption, it does not allow for differentiation among proteins with a PDCAAS of 1.0, so proteins can have different PERs while still having a PDCAAS of 1.0.
		The PER and PDCAAS of soy protein is similar to dietary meat or fish and slightly lower than egg, milk, casein, whey and bovine colostrum.
	www.anabolicevolution.com /showthread.php?t=866 (2441 words)

	PDCAAS
		The Protein Digestibility Corrected Amino Acid Score (PDCAAS) is superior to other methods for evaluating the protein quality of food proteins for humans because it measures the quality of a protein based on the amino acid requirements of the human in its appropriate age group, adjusted for digestibility.
		Isolated soy protein such as SUPRO®SOY, with a PDCAAS of 1.0, is a complete protein and has the same score as milk protein and egg white.
		As an example, an adult who needs 50 grams of protein per day could satisfy all of his or her protein needs by consuming 50 grams of a certain brand of isolated soy protein such as SUPRO®SOY.
	www.thesolaecompany.com /cn/glossary/pdcaas.htm (709 words)

	SOY - soy protein
		This means that Solae™ soy protein with a PDCAAS of 1.0, has the same score as meat, milk, and egg proteins indicating a very high quality protein.
		PDCAAS is based on a food protein's amino acid content, its digestibility, and its ability to supply essential amino acids in amounts adequate to meet the needs of humans.
		PDCAAS is currently the method recognized by the Food and Drug Administration (FDA) and other international organizations for food labeling.
	www.solae.com /faqs/index.jsp (3274 words)

	Articles - PDCAAS (Site not responding. Last check: 2007-10-16)
		Protein Digestibility Corrected Amino Acid Score (PDCAAS) is a method of evaluating the protein quality based on the amino acid requirements of humans.
		The PDCAAS rating is a fairly recent evaluation method (it was adopted by the US Food and Drug Administration in 1993) and emerged due to weaknesses in earlier evaluations of protein quality, such as the Protein Efficiency Ratio (PER) and the Biological Value (BV).
		The PDCAAS is superior to both the PER and the BV.
	www.kimia-sains.com /articles/PDCAAS (276 words)

	Soy Essentials - Soy Protein
		The recommended method, called Protein Digestibility-Corrected Amino Acid Score (PDCAAS), was adopted by the US Food and Drug Administration (FDA) for protein quality evaluation and nutrition labeling purposes for products intended for children over the age of two and adults.
		The PDCAAS method is based on an amino acid scoring method, comparing the amino acid profile of the test protein food to the FAO/WHO two- to five-year-old amino acid pattern.
		The two- to five-year-old pattern is used because it exceeds the amino acid requirement patterns of older children and adults.
	www.solae.com /company/soyessentials/soyprotein.html (595 words)

	SoyFoods (Site not responding. Last check: 2007-10-16)
		PDCAAS measures the amino acid pattern of proteins and factors in digestibility.
		Soy protein has a PDCAAS score of 1.0, equivalent to animal protein.
		Isoflavones are a form of phytoestrogens that have a chemical structure very similar to estrogen.
	www.soyfoods.org /press/FAQ_health.htm (921 words)

	Aussie Bodies: P Q R: PDCAAS
		PDCAAS is based on several factors: the profile of essential amino acids, the digestibility of the protein, and the ability of the protein to supply the essential amino acids in the amounts needed to meet the requirements of growing human beings.
		The protein quality rankings are determined by comparing the amino acid profile of the specific food protein against a standard amino acid profile.
		Simply multiply the PDCAAS by the protein content as displayed on the nutritional information (or food facts) panel.
	www.aussiebodies.com.au /glossary/q+p+r/pdcaas.htm (186 words)

	Encyclopedia: Protein
		Green beans Bean is a common name for large plant seeds of several genera of Fabaceae (formerly Leguminosae) used for food or feed.
		The Food and Agricultural Organisation of the United Nations (FAO) defines pulses as annual leguminous crops yielding from one to 12 grains or seeds of variable size, shape and colour within a pod.
		Gelatin (also gelatine) is a translucent brittle solid, colorless or slightly yellow, nearly tasteless and odorless, that is created by prolonged boiling of animal connective tissue.
	www.nationmaster.com /encyclopedia/Protein (5911 words)

	SOYFOODS AND PROTEIN \| Talksoy.com
		Recently the Protein Digestibility Corrected Amino Acid Score (PDCAAS) was introduced as a more accurate way to evaluate protein quality for children and adults.(3) The PDCAAS has now been adopted as the official method by the World Health Organization, the U.S. Food and Drug Administration and the U.S. Department of Agriculture.
		The PDCAAS is the amino acid score (amino acid pattern of a protein relative to amino acid needs) with a correction factor for digestibility.
		The PDCAAS for soy protein isolate is 1.0, which makes soy equivalent to animal proteins in quality and higher than other plant proteins.
	www.talksoy.com /Health/tProtein.htm (716 words)

	Il Database del World Nutrition Center - database (Site not responding. Last check: 2007-10-16)
		The reason BV is outdated is do to the fact that it has been found to produce inaccurate results, these results are inaccurate because the basis of the BV system is founded on tests done on animals (6).
		PDCAAS measures both amino acid content and digestibility of the source tested.
		PDCAAS is calculated by dividing the amount of each essential AA in test protein by amount in reference protein according to the standard FAO/WHO two- to five-year-old amino acid pattern.
	www.wnc2.net /kb/question.php?qstId=69 (1325 words)

	AOAC International \| Publications \| Journal of AOAC INTERNATIONAL (JAOAC) (Site not responding. Last check: 2007-10-16)
		PDCAAS is now widely used as a routine assay for protein quality evaluation, replacing the more traditional biological methods [e.g., measurement of the Protein Efficiency Ratio (PER) in rats].
		PDCAAS is based on comparison of the essential amino acid content of a test protein with that of a reference essential amino acid pattern and a correction for differences in protein digestibility as determined using a rat assay.
		Although PDCAAS is a rapid and useful method, it often shows discrepancies when compared to PER values.
	www.aoac.org /pubs/New_Journal/2005/May_June_05/protein_digest.htm (154 words)

	Protein Digestibility Corrected Amino Acid Score PDCAAS
		The PDCAAS is calculated by multiplying the lowest uncorrected amino acid score by the food protein's digestibility.
		The PDCAAS for a food protein is equal to the lowest score for a single indispensable amino acid (or amino acid pair).
		The FDA gave two reasons for adopting the PDCAAS over PER.
	www.solae.com /performancenutrition/highqualityprotein/pdcaas.jsp?printer=true (713 words)

	Max Muscle Sports & Fitness
		PDCAAS uses the amino acid requirements of 2- to 5-year-old children as a standard, because their amino acid requirements meet or exceed that of adults.
		These types of tests are great for determining the probability that something will yield a particular result, but should not be the method used for deter-mining the actual amounts or percentages we humans should consume.
		I like both of these methods because the BV is a derived calculation based on total nitrogen retention of a particular protein, while the PDCAAS relies on the actual needs of amino acids in humans, rather than rodents.
	www.maxmuscle.com /index.cfm?fa=article&doc_id=342&subcat=basic_nutrition (1198 words)

	The Protein Digestibility-Corrected Amino Acid Score Method Overestimates Quality of Proteins Containing ... (Site not responding. Last check: 2007-10-16)
		(PDCAAS of 63-71% vs. RPER and RNPR of 3-44%).
		PDCAAS of heated fl beans was higher than that of raw fl
		The PDCAAS of test protein sources were compared with RNPR or RPER values, an estimate of biological utilization of proteins
	www.nutrition.org /cgi/content/full/127/5/758 (5424 words)

	17E-2 Predicting overall protein quality from in vitro data using a non-linear model (Site not responding. Last check: 2007-10-16)
		The objective of this study was to extend previous use of PDCAAS and AAACAAS values derived from studies in swine to predict overall protein nutritional quality in terms of the saturation kinetics model that relates protein intake to subject response
		PDCAAS for Dmax and D24 and AAACAAS for A24 were calculated.
		Linear relationships between in vitro PDCAAS (Dmax, D24) and SK n and K.5 values determined in swine were found.
	ift.confex.com /ift/2004/techprogram/paper_25997.htm (383 words)

	MLO Health Supplements (Site not responding. Last check: 2007-10-16)
		The wonderful high protein of MLO solves or exceeds the governments the standard United States for the protein of the quality as it fixes by his corrected account digestibilidad of the amino acid of the protein (PDCAAS) of 100%.
		The vegetal protein of MLO solves or exceeds the standard the government of the United States for the labeled protein of of the quality as it fixes by the corrected account digestibilidad of the amino acid of the protein (PDCAAS) of 100%.
		The corrected account digestibilidad of the amino acid of the protein now is the standard of the government of the United States to determine the quality of the protein.
	www.gemini-research.co.uk /950-MLO.html (421 words)

	Davisco Foods - BiPRO®, Protein Quality Measurement
		This method, known as protein digestibility corrected amino acid score (PDCAAS) is an internationally recognized method.
		According to this method, an ideal protein that meets all the essential amino acid requirements of human body will have a value of 1.0.
		PDCAAS values of greater than 1.0 indicate a high digestibility and a high ratio of amino acid profile in
	www.daviscofoods.com /BiPRO/ProteinQuality.cfm (338 words)

	Protein Powders Explained
		PDCAAS was developed by the Food and Agriculture Organization (FAO) to compare the quality of different proteins based on amino acid requirements necessary for humans.
		Corrections for digestibility of protein are applied to give a protein-quality rating such that's much closer to reality for human metabolism.
		The PDCAAS is based on the amino acid needs of children ages 2-5, since this is the group that needs the greatest amount of amino acid consumption.
	www.british-bodybuilding.co.uk /Protein_Powders.shtml (662 words)

	Teamedup's Homepage
		The PDCAAS is the main measure used by those establishing the protein values listed on food labels.
		As the words of its name suggest, the PDCAAS takes into account the digestibility of a protein as well as its amino acid balance.
		To obtain the PDCAAS, the food is first given a score based on its amino acid balance.
	www.geocities.com /HotSprings/1053/proreq.htm (1029 words)

	Soya still like Whey ? (Site not responding. Last check: 2007-10-16)
		The PDCAAS index is the only one of its kind adopted by the FDA (1993).
		The beauty of PDCAAS is that it takes a protein's digestibility, its essential amino acid profile, and its ability to supply those amino acids in amounts to meet human needs into account.
		In short, PDCAAS is the method recommended by the Food and Agricultural Organization/World Health Organization.
	www.rumblesupplies.com /matters/stories/soy.html (1055 words)

	Nat' Academies Press, Dietary Reference Intakes: Guiding Principles for Nutrition Labeling and Fortification (2003)
		However the factors would become important when evaluating an individual food’s contribution to protein intake—especially in circumstances where the diet lacks variety and is relatively low in energy content (e.g., when meal replacement drinks and bars are used in supplemental feeding or weight-management programs).
		Because of the complexities associated with evaluating the contribution of protein to a health-promoting diet, the committee suggests a thorough evaluation of the regulatory and nutritional implications of the use of PDCAAs in this context.
		In general, the criterion for a “free” content claim is the lower limit of analytical accuracy for a given nutrient, the criterion for a “low” content claim is about 5 percent of the DV, and the criterion for a “reduced” content claim is at least 25 percent less than the reference food.
	www.nap.edu /books/0309091438/html/117.html (748 words)

	Supplement Central Community Forum - View Single Post - Types of whey protein (Site not responding. Last check: 2007-10-16)
		According to the PDCAAS scale, whey is not necessarily the best protein.
		In 1989, soy protein was put to the test to see how it stacked up against other proteins on a scale of protein quality.
		Soy was tested along with egg white, casein (derivative of milk protein), beef, and a variety of beans to determine their PDCAAS rating.
	www.supplementcentral.com /forums/showpost.php?p=29681&postcount=5 (1421 words)

	The Protein Digestibility-Corrected Amino Acid Score -- Schaafsma 130 (7): 1865 -- Journal of Nutrition (Site not responding. Last check: 2007-10-16)
		PDCAAS values higher than 100% are not accepted as such but
		These issues are discussed later; it is concluded that it is
		Thus, truncated PDCAAS values do not provide information about the
	www.nutrition.org /cgi/content/full/130/7/1865S (1778 words)

	FAQs
		PDCAAS (Protein Digestibility Corrected Amino Acid Score) is a measurement of protein quality.
		The PDCAAS of a protein is based on the amino acid profile of the protein compared to human amino acid requirements, and adjusted for protein digestibility.
		Isolated Soy Protein has a PDCAAS of 1.0, the highest PDCAAS value a protein can have.
	www.proplusprotein.com /proplusw.nsf/pages/faqs (596 words)

	Regulation No R. 1055 of 2002 Annexure 1 (Site not responding. Last check: 2007-10-16)
		The protein digestibility-corrected amino acid score (PDCAAS) of a foodstuff is determined according to the methods described in sections 5.4.1.
		The food’s protein content, usually calculated using the factor 6,25 [or specific AOAC factor listed in Table 6 of Annex 4], multiplied by the nitrogen (N) content of the food as determined by the AOAC method of analysis (AOAC, 1984).
		The Department recognizes that a data base on digestibility values could be of assistance in implementing the PDCAAS method, and in reducing the expense of implementing this new methodology by eliminating the need for a bioassay.
	www.doh.gov.za /docs/regulations/2002/reg1055annex.html (3207 words)

	Protein Information (Site not responding. Last check: 2007-10-16)
		This measure may still be considered incomplete, since human diets, except in times of famine, almost never contain only one kind of protein - however, calculating the PDCAAS of a diet solely based on the PDCAAS of the individual consituents is impossible.
		BeanWhite bean protein (and that of many other pulses) has a PDCAAS of 0.6 to 0.7, limited by methionine, and contains more than enough lysine.
		It has been claimed that, since vegetarianismstrict vegetarians do not consume "complete" (PDCAAS 1.0) animal-derived proteins such as egg, milk, meat and fish, they must perform this kind of ''protein combining'' on a daily base to avoid suffering from protein deficiency.
	www.echostatic.com /Protein.html (2234 words)

	Iron Curtain Labs in the News
		One facet that distinguishes MRPs from each other is the type and ratio of protein utilized in the formula.
		The protein source as measured by the Protein Digestibility Corrected Amino Acid Score (PDCAAS) should be of high quality such as Whey, Egg, Casein, or Supro (Soy).
		The PDCAAS is a measurement of protein quality, bioavailability, and retention.
	www.ironcurtainlabs.com /news/news_15012000.html (1178 words)

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