<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The work compares the levels of amino acids in canned <italic>Pleurotus ostreatus</italic> and <italic>Agaricus bisporus</italic> mushrooms. Compared with <italic>A. bisporus, P. ostreatus</italic> contained significantly lower levels of ash, total nitrogen and protein nitrogen (by 17-40%), but 12% more total carbohydrates. Protein nitrogen constituted 87% of the total nitrogen in <italic>A. bisporus</italic> and 72% in <italic>P. ostreatus</italic>. The conversion factor from total nitrogen to protein was 3.45 in <italic>A. bisporus</italic>, 15% lower than in <italic>P. ostreatus</italic>. In both species, glutamine was the most abundant endogenous amino acid while leucine was the most abundant exogenous amino acid. The least abundant endogenous and exogenous amino acids were respectively glycine, and methionine and cysteine. When the results were expressed in terms of per 100 g of fresh matter, <italic>P. ostreatus</italic> contained significantly higher levels of arginine, tyrosine and valine than <italic>A. bisporus</italic> (by 14-21%), but lower levels of alanine, asparagine, glutamine, glycine, cysteine and histidine (by 5-38%). In terms of per 100 g of protein, <italic>P. ostreatus</italic> contained significantly higher levels of alanine, arginine, glycine, isoleucine, leucine, phenylalanine, threonine, tyrosine and valine (by 9-40%) than <italic>A. bisporus</italic>, but lower levels of asparagine, glutamine, proline and cysteine (by 5-37%). Compared with the FAO/WHO reference protein patterns, no limiting amino acids were found in either species. The EAA (Essential Amino Acid) index values for canned <italic>P. ostreatus</italic> were 11% higher than for canned <italic>A. bisporus.</italic></p></abstract>

The work compares the levels of amino acids in canned Pleurotus ostreatus and Agaricus bisporus mushrooms. Compared with A. bisporus, P. ostreatus contained significantly lower levels of ash, total nitrogen and protein nitrogen (by 17-40%), but 12% more total carbohydrates. Protein nitrogen constituted 87% of the total nitrogen in A. bisporus and 72% in P. ostreatus. The conversion factor from total nitrogen to protein was 3.45 in A. bisporus, 15% lower than in P. ostreatus. In both species, glutamine was the most abundant endogenous amino acid while leucine was the most abundant exogenous amino acid. The least abundant endogenous and exogenous amino acids were respectively glycine, and methionine and cysteine. When the results were expressed in terms of per 100 g of fresh matter, P. ostreatus contained significantly higher levels of arginine, tyrosine and valine than A. bisporus (by 14-21%), but lower levels of alanine, asparagine, glutamine, glycine, cysteine and histidine (by 5-38%). In terms of per 100 g of protein, P. ostreatus contained significantly higher levels of alanine, arginine, glycine, isoleucine, leucine, phenylalanine, threonine, tyrosine and valine (by 9-40%) than A. bisporus, but lower levels of asparagine, glutamine, proline and cysteine (by 5-37%). Compared with the FAO/WHO reference protein patterns, no limiting amino acids were found in either species. The EAA (Essential Amino Acid) index values for canned P. ostreatus were 11% higher than for canned A. bisporus.

Comparison of Amino Acid Content in Canned <italic>Pleurotus Ostreatus</italic> and <italic>Agaricus Bisporus</italic> Mushrooms

Department of Raw Materials and Processing of Fruit and Vegetables, Agricultural University of Krakow, 122 Balicka Street, 30-149 Krakow, Poland

Journal of Fruit and Ornamental Plant Research

Comparison of Amino Acid Content in Canned  and  Mushrooms

The work compares the levels of amino acids in canned Pleurotus ostreatus and Agaricus bisporus mushrooms. Compared with A. bisporus, P. ostreatus contained...

Comparison of Amino Acid Content in Canned Pleurotus Ostreatus and Agaricus Bisporus Mushrooms

Pubblicato online: 12 ago 2011

Pagine: 107 - 115

DOI: https://doi.org/10.2478/v10032-011-0009-3

Parole chiave
amino acids, canning

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