ششمین همایش علمی کاربردی قارچ های خوراکی

آذر 1392

Main Phenolic Compounds of the Melanin Biosynthesis Pathway in Bruising-Tolerant and Bruising-Sensitive Button Mushroom (Agaricus bisporus) Strains

Abstract

Browning is one of the most common postharvest changes in button mushrooms, which often results in economic losses. Phenolic compounds, which are associated with browning, were extracted from the nonbruised and bruised skin tissue of various button mushrooms with a sulfite-containing solution and analyzed with UHPLC-PDA-MS. In total, 34 phenolic compounds were detected. Only small differences in the total phenolic content between bruising-tolerant and -sensitive strains were observed. The contents of γ-l-glutaminyl-4-hydroxybenzene (GHB) and γ-l-glutaminyl-3,4-dihydroxybenzene (GDHB) correlated with bruising sensitivity; for example, R² values of 0.85 and 0.98 were found for nonbruised brown strains, respectively. In nonbruised skin tissue of the strains with brown caps, the GHB and GDHB contents in sensitive strains were on average 20 and 15 times higher, respectively, than in tolerant strains. GHB and GDHB likely participate in the formation of brown GHB–melanin, which seemed to be the predominant pathway in bruising-related discoloration of button mushrooms.

http://pubs.acs.org/doi/abs/10.1021/jf4020558

مقاله 2013: پتانسیل استرین های وحشی اروپایی آگاریکوس یا قارچ دکمه ای دارویی برای تولید و کیفیت آن روی کمپوست ساخته شده بر اساس کاه گندم

Potential of European wild strains of Agaricus subrufescens for productivity and quality on wheat straw based compost

Abstract