بررسی خواص فیزیکوشیمیائی پوشش نانو امولسیون اسانس آویشن شیرازی بر ماندگاری قارچ خوراکی دکمه‌ای (Agaricus bisporus)

نویسندگان
1 ریاست دانشکده تولید گیاهی
2 کارشناس آزمایشگاه مرکزی
3 معاونت آموزشی دانشگاه گلستان
4 دانشجو
چکیده
چکیده

استفاده از پوشش خوراکی برای حفاظت از مواد غذایی در سال­های اخیر افزایش چشم‌گیری داشته است. در این پژوهش کلاهک رسیده قارچ دکمه­ایAgaricus bisporus با ماده کربوکسی متیل سلولز 1 درصد و نانو امولسیون آویشن شیرازی (Zataria multiflora) در سه غلظت 200، 300 و 400 میلی گرم بر لیتر پوشش داده و در دمای 8 درجه سلسیوس به­مدت دو هفته نگه­داری شدند. طی این مدت افت وزن، مواد جامد محلول، استحکام بافت و رنگ بررسی شدند. نتایج بدست آمده نشان داد افت وزن در تیمارهای دارای پوشش نانو امولسیون اسانس آویشن شیرازی نسبت به شاهد تفاوت معنی­داری دارند، به‌طوری­ که با افزایش غلظت نانو امولسیون آویشن شیرازی وزن کلاهک­ها افت کمتری داشتند. از طرفی میزان ازدست دادن رطوبت در کلاهک­ها از روند افت وزن تبعیت می­کند. بنابراین پوشش­دهی می­تواند سبب به تاخیر افتادن خشک شدن و چروکیدگی در کلاهک ­گردد. هم­چنین با افزایش غلظت نانو امولسیون آویشن شیرازی استحکام بافت نسبت به شاهد افزایش یافت و بهترین غلظت 300 و 400 میلی­گرم بر لیتر می­باشد. مواد جامد محلول در آب نیز تا روز هفتم افزایش یافته و در پایان دوره ماندگاری کاهش نشان داد که کمترین آن در غلظت 400 میلی گرم بر لیتر بوده است. مطابق نتایج مناسب­ترین مقادیر برای دو پارامترL* وΔE* در غلظت 400 میلی گرم بر لیتر از نانواسانس تعیین گردید.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Investigation of the Physical and Chemical Properties of Zataria multiflora Essential oil Nano Emulsions on the Preservation of Agaricus Bispporus Button Mushroom

نویسندگان English

esmaeil Razavi 1
Minoo Rastegae 2
pouneh ebrahimi 3
shahryar Rezaee 4
1 Director of the Department of Plant Production
2 Central laboratory expert
3 Educational Assistant
4 Student
چکیده English

Abstract

The use of edible coatings to protect food has increased dramatically in recent years. In this study, the pileus of button mushroom Agaricus bisporus was coated with 1% carboxymethyl cellulose and essential oil nanoemulsion of Zataria multiflora at three concentrations of 200, 300 and 400 mg/l and stored at 8 ° C for 2 weeks. Then weight loss, brix, texture strength and solution color were investigated. Button mushroom coated with essential oil nano-emulsion showed a significant difference in weight loss from that of control. The results showed that Increasing the concentration of nanoemulsion reduced the weight loss of the pileus. Also, the amount of moisture loss in the pileus is similar to the trend of weight loss. Therefore, the nano-emulsion coating reduced the drying process in the pileus. Tissue strength was increased with increasing concentrations of nano-emulsion oils compared to control , and the best concentration was 300 and 400 mg/l. The brix was increased until the seventh day and decreased at the end of the durability period , with the lowest concentration at 400 mg/l. Also, two parameters L and ΔE were suitable at 400 mg/l of nanoemulsion oil concentration.


کلیدواژه‌ها English

Carboxymethylcellulose
Zataria multiflora
Button mushroom Agaricus bisporus
Nanoemulsion
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