بررسی کارایی ملاتونین در حفظ خصوصیات کیفی، فیتوشیمیایی و افزایش عمر انباری میوه تمشک ‏‎(Rubus ulmifolius subsp. sanctus)‎

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

2 استادیار، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

3 استادیار، دانشکده داروسازی، دانشگاه علوم پزشکی تهران، تهران، ایران

4 دانشیار، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

چکیده

امروزه تلاش­های زیادی در سطح جهان برای یافتن روش­های جایگزین در کنترل ضایعات پس از برداشت محصولات باغبانی صورت می‌گیرد. در پژوهش حاضر اثر غلظت­های مختلف ملاتونین (001/0­، 01/0 و 1/0 میلی­مولار) بر افزایش عمر انباری تمشک مورد بررسی قرار گرفت. میوه­ها پس از 5 دقیقه غوطه­وری در سردخانه­ای با دمای 1±4 درجه­سلسیوس و رطوبت نسبی 95-90 درصد به مدت 9 روز نگهداری شدند. نتایج نشان داد که بالاترین میزان pH و TSS در تیمار شاهد روز نهم و TA در تیمار 001/0 میلی­مولار در روز سوم مشاهده شد که مقادیر آن­ها به ترتیب برابر با 63/3، 62/0 میلی­گرم اسیدسیتریک در 100 میلی­لیتر آب میوه و 31/16 درجه بریکس بود. بیشترین میزان فنل و فلاونوئید کل به ترتیب با مقادیر 37/25 میلی­گرم اسیدگالیک در 100 میلی­لیتر آب میوه در غلطت 001/0 میلی مولار ملاتونین و 60/9 میلی­گرم کوئرستین در 100 میلی لیتر آب میوه در غلظت 1/0 میلی مولار ملاتونین در روز سوم مشاهده شد. همچنین نتایج تجزیه به عامل داده­ها نیز موید این امر بود که دو عامل PC1 (64 درصد) و PC2 (8/14 درصد) بیشترین نقش را در دسته­بندی تیمارها داشته­اند. به طور کلی نتایج این پژوهش نشان داد که تیمار 001/0 میلی­مولار ملاتونین می­تواند، به عنوان یک ترکیب طبیعی سازگار با محیط زیست و انسان ضمن حفظ ارزش تغذیه‌ای تمشک برداشت شده، به افزایش عمر انباری و کاهش ضایعات آن کمک کند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of melatonin efficacy in maintaining qualitative, phytochemical properties ‎and increasing storage life of raspberry fruit (Rubus ulmifolius subsp. Sanctus)‎

نویسندگان [English]

  • Shirin Rahmanzadeh Ishkeh 1
  • Habib Shirzad 2
  • Zahra Tofighi 3
  • Mohammad Fattahi 4
1 Ph. D. Candidate, Faculty of Agriculture, Urmia University, Urmia, Iran
2 Assistant Professor, Faculty of Agriculture, Urmia University, Urmia, Iran
3 Assistant Professor, Faculty of Pharmacy, Tehran University, Tehran, Iran
4 Associate Professor, Faculty of Agriculture, Urmia University, Urmia, Iran
چکیده [English]

Nowadays, many efforts are being in the worldwide to find alternative methods for controlling postharvest horticultural waste. In the present study, the effect of different concentrations of melatonin (000.001, 0.01 and 0.1 mM) on increasing the storage life of raspberries was investigated. After 5 min immersion, the fruits were maintained in a cold storage with a 4±1 °C 90-95%RH for 9 days. The results showed that the highest level of pH and TSS were observed in the control treatment on the ninth day and TA in the treatment of 0.001 mmol on the third days of storage with mean 3.64 and 0.62 mg citric acid/100 ml fruit Juice and 16.31 ̊brix, respectively. The highest levels of total phenol and flavonoids content were observed with 25.37 mg GAE/ 100 ml juice and 9.60 mg QE/ 100 ml juice on the third day storage, respectively. The results of data factor analysis also confirmed that the two factors PC1 (64%) and PC2 (14.8%) had the most role in the classification of treatments. In general, the results of this study showed that treatment with 0.001 mM melatonin, as a natural compound compatible with the environment and humans, in addition to the maintaining the nutritional values of the harvested raspberry it,s can increased storage life and reduced waste of fruits.

کلیدواژه‌ها [English]

  • Correlation coefficient
  • factor degradation
  • flavonoid
  • growth regulator
  • phenol‎

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سابقه مقاله

  • تاریخ دریافت: 09 دی 1399
  • تاریخ بازنگری: 07 اردیبهشت 1400
  • تاریخ پذیرش: 24 خرداد 1400

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