تاثیر دمای انبار و نیتریک اکسید بر کیفیت و انبارمانی آریل‌های انار نادری

نویسندگان
1 دانشجوی دکتری، فیزیولوژی و فناوری پس‎ازبرداشت، گروه علوم باغبانی، دانشگاه هرمزگان، بندرعباس، ایران.
2 استادیار، گروه علوم باغبانی، دانشگاه هرمزگان، بندرعباس، ایران.
3 استادیار، بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران.
4 استادیار، بخش تحقیقات علوم زراعی- باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران.
چکیده
مهمترین مشکلات آریل انار طی انبارمانی، نرم شدن، قهوه­ای شدن آنزیمی و آلودگی میکروبی است. برای رفع این مشکلات تیمار پس از برداشت نیتریک اکسید و انبار سرد بر آریل انار بررسی شد. بنابراین به­­منظور، ارزیابی اثر دمای انبار و غلظت­های مختلف نیتریک اکسید بر خصوصیات کیفی و انبارمانی آریل انار آزمایشی به­صورت فاکتوریل در قالب طرح کامل تصادفی با سه تکرار انجام شد. در این مطالعه، نیتریک اکسید در غلظت­های صفر، 5 و 10 میکرومول در لیتر استفاده شد. آریل­ها به­مدت 15 ثانیه در تیمار نیتریک اکسید غوطه­ور شده و پس از خشک شدن در دمای آزمایشگاه، درون ظروف پلی­اتیلنی بسته­بندی و به دماهای 2، 4 و 8 درجه سلسیوس منتقل شدند. برخی صفات کیفی، کمی و بیوشیمیایی نمونه­ها در طی زمان­های (صفر، 7، 14 و 21 روز) انبار مورد ارزیابی قرار گرفتند. نتایج تجزیه واریانس نشان داد تفاوت معنی­داری بین غلظت­های مختلف نیتریک اکسید و دماهای انبارمانی در اکثر صفات مورد ارزیابی وجود داشت. پس از 21 روز انبارمانی، آریل­های تیمار شده با نیتریک اکسید در غلظت 10 میکرومولار و نگهداری در دمای 8 درجه سلسیوس در مقایسه با شاهد در دمای 2 درجه سلسیوس دارای 50% کاهش وزن کمتر و 21% نشت یونی کمتری بوده و دارای ارزیابی حسی، مقدار آنتوسیانین، ترکیبات فنلی و ظرفیت آنتی­اکسیدانی مطلوبی بودند. در مجموع آریل­های تیمارشده با 10 میکرومول در لیتر نیتریک اکسید در دمای 8 درجه سلسیوس بالاترین کیفیت ظاهری و انبارمانی را داشتند.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Effects of storage temperature and nitric oxide on quality and storage life of Naderi pomegranate arils

نویسندگان English

Maryam Mandegari 1
Abdolmajid Mirzaalian Dastjerdi 2
Laleh Mosharaf 3
Maryam tatari 4
1 University of Hormozgan
2 University of Hormozgan
3 Esfahan Agricultural and Natural Resources Research and Education Center
4 Esfahan Agricultural and Natural Resources Research and Education Center
چکیده English

Softening, enzymatic browning and microbial activity are the most common problems of pomegranate arils during storage. In order to improve these problems, postharvest treatments of nitric oxide and cold storage were studied on pomegranate arils. Therefore, In order to evaluate the effect of temperature and different concentrations of nitric oxide on pomegranate arils, a factorial experiment was conducted based on a completely randomized design with three replications. In this study, nitric oxide was used at concentrations of 0, 5 and 10 µM/L as liquid solutions. The arils were dipped in solution for fifteen seconds and were packed by polyethylene containers after drying at room temperature. They were stored at cold temperatures (2, 4 and 8°C). The qualitative, quantitative and biochemical parameters were measured on days 0, 7, 14 and 21 of the storage period. The ANOVA results showed that the different concentrations of nitric oxide and storage temperatures caused significant differences among most of the evaluated parameters. The exposure of arils to nitric oxide at concentration of 10 µM/L and storage at 8°C caused them lower 50% weight loss and less 21% ion leakage, as well as higher marketability, anthocyanin content, total phenolic and antioxidant activity compared to arils of the control group storage at 2°C after 21 days. In general, arils treated with 10 µM/L of nitric oxide at 8°C showed the best apparent quality and storage life of pomegranate arils.

کلیدواژه‌ها English

Antioxidant activity
Anthocyanin
Nitric oxide
Pomegranate arils
Storage
Total phenolic
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