تاثیر شرایط نگهداری بر رنگ و وزن خشک‌کرده زرشک بی‌دانه ایرانی بسته‌بندی شده در سه نوع فیلم بسته‌بندی

نویسندگان
1 گروه علوم و صنایع غذایی دانشگاه ارومیه
2 مهندسی تولید و ژنتیک گیاهی
چکیده
هدف از این پژوهش بررسی تاثیر شرایط متفاوت محیطی «رطوبت نسبی» ، «دما» و «نور» هر کدام در دو سطح (بالا و پایین) به مدت 120 روز تیمار بر تغییرات درصد اختلاف وزن و شاخص­های پارامترهای رنگ خشک کرده زرشک بود. تاثیر شرایط مذکور در قالب طرح آماری کاملاً تصادفی بر پایه فاکتوریل مورد ارزیابی قرار گرفت. پس از تنظیم درصد رطوبت زرشک خریداری شده، رنگ سنجی بر هر دو نوع نمونه انجام گرفت. سپس نمونه­ها به تفکیک درصد رطوبت در کیسه­های فیلم­های پلی­اتیلن با دانسیته پایین (LDPE)، پلی­اتیلن با دانسیته بالا (HDPE) و پلی­پروپیلن کست (CPP) در اوزان ۱۰۰ گرمی بسته­بندی و کد گذاری شدند و بر اساس کد مربوطه در شرایط متفاوت محیطی قرار گرفتند. بر اساس نتایج حاصل در نمونه­های بسته­بندی شده در تمامی فیلم­ها در شرایط «رطوبت نسبی بالا × دمای پایین × تاریکی» و «رطوبت نسبی بالا × دمای پایین × روشنایی» بعد از 120 روز نگهداری زاویه هیو و نسبت a/b حفظ شد. کمترین اختلاف وزنی در نمونه­های بسته­بندی شده در فیلم پلی اتیلنی با دانسیته بالا و پایین در شرایط مشابه مشاهده شد. همچنین در تمامی نمونه­های بسته­بندی شده در شرایط «رطوبت نسبی بالا × دمای پایین» کمترین زاویه هیو، کمترین شدت رنگ و بیشترین نسبت a/b مشاهده گردید و کمترین اختلاف وزنی در نمونه بسته­بندی شده در فیلم پلی­پروپیلن کست در این شرایط مشاهده شد.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Effect of storage conditions on color and weight of dried Iranian seedless barberry packaged in three types of packaging films

نویسندگان English

Khadeejeh Novini Bianlojeh 1
Mohsen Esmaiili 1
Iraj Bernosi 2
1 Department of Food Science and Technology, Faculty of Agriculture, Urmia University
2 Agricultural Faculty, Urmia University
چکیده English

The aim of this study was to evaluate the effect of storage conditions “relative humidity”, “temperature” and “light”, each one at two levels (high and low), on the weight and color of dried seedless barberry after 120 days' storage. The effect of conditions was statistically analyzed in a completely randomized design experiment based on factorial. After adjusting the moisture content barberry color were measured for both samples. The samples in weights of 100g in the bags made of low density polyethylene (LDPE), high density polyethylene (HDPE) and polypropylene cast (CPP) were packaged and coded. Then samples were placed in a given storage conditions. Based on the results, all the hue angle and a/b ratio have not changed in all the packaging samples of films in the condition of “high relative humidity, low temperature and darkness” and “high relative humidity, low temperature and brightness” after 120 days of storage. The lowest difference in weight was observed in both samples packaged in bags of LDPE and HDPE films, at the same conditions. Also, in all the packaging samples at the “high relative humidity × low temperature” state, the lowest hue angle, lowest chroma and highest a/b ratio were observed, whilst at the similar state, the lowest difference in weight in samples packaged in polypropylene cast film bags was observed.

کلیدواژه‌ها English

color
seedless barberry
Storage conditions
Packaging films
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