نوع مقاله : علمی پژوهشی - باغبانی

نویسندگان

1 دانشجوی کارشناسی ارشد، بخش باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

2 دانشیار، بخش باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

3 دانش آموخته دکتری باغبانی، بخش باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

چکیده

در این تحقیق به بررسی اثر اسیدمالیک در طی دوره پس از برداشت در میوه‏های آلبالو رقم مجارستانی پرداخته شده است. میوه‌های آلبالو از یک باغ تجاری در شهر ماهان کرمان در سال 1401 انتخاب و بعد از تیمار با اسیدمالیک 0، 2 و 4 درصد تیمار برداشت و در دمای 1 درجه سانتی­گراد با رطوبت نسبی 85 درصد برای مدت 16 روز ذخیره شدند. صفاتی مانند صدمه سرمازدگی، میزان پراکسید هیدروژن، پراکسیداسیون لیپیدها، نشت یونی، ظرفیت آنتی ‏اکسیدانی و آنزیم‏های آنتی‏ اکسیدان شامل پراکسیداز، کاتالاز، سوپراکسیددیسموتاز، آسکوربات پراکسیداز اندازه‏ گیری شدند. نتایج نشان دادند که کاربرد اسیدمالیک با هر دو غلظت و درتمامی فواصل مورد مطالعه منجر به کاهش میزان خسارت سرمازدگی، پراکسیدهیدروژن، پراکسیداسیون لیپیدها، نشت یونی نسبت به نمونه‏ های شاهد گردید. از طرفی، در میوه ‏های تیمار شده با اسیدمالیک ظرفیت آنتی‏اکسیدانی و فعالیت آنزیم‏های آنتی‏اکسیدان شامل پراکسیداز، کاتالاز، سوپراکسیددیسموتاز، آسکوربات پراکسیداز نیز افزایش یافت. به عنوان نتیجه‏ گیری کلی، اسید مالیک با غلظت 4 درصد در تمامی فواصل مورد مطالعه، اثرات معنی‏ داری در سطح آماری 5 درصد بر بهبود فعالیت‏های آنتی‏اکسیدانی میوه‏ های آلبالو در طی دوره انبارمانی داشته است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Postharvest quality maintenance and improvement of antioxidant capacity of sour cherry fruits by malic acid treatment

نویسندگان [English]

  • Mahla Sanati 1
  • Zahra Pakkish 2
  • Soheila Mohammadrezakhani 3

1 Master student, Department of Horticulture, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

2 Associate Professor, Department of Horticulture, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

3 Ph.D. Graduate of Horticulture, Department of Horticulture, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

چکیده [English]

Introduction
Fruits are one of the most valuable horticultural products that play an important role in providing of human nutrition and health. This group of agricultural products are perishable due to high content of water, high respiration and transpiration rate, hence, most of them are short life products. In present study, malic acid with different concentrations were used as treatments to protect cell membranes, maintain quality and increase shelf life during the postharvest period in sour cherry fruits.
 
Materials and Methods
Sour cherry fruits were selected from a commercial orchard in Mahan city of kerman in 2021 years, after treatment with 0, 2 and 4% malic acid and stored at 1°C with 85% relative humidity for 16 days. Traits such as chilling injury, hydrogen peroxide, lipid peroxidation, ion leakage, antioxidant capacity and antioxidant enzymes including peroxidase, catalase, superoxide dismutase, ascorbate peroxidase were measured.
 
Results and Discussion
The results showed that the application of malic acid with both concentrations of 2 and 4% and in all studied intervals led to a decrease in chilling injury, hydrogen peroxide, lipid peroxidation, and ion leakage compared to the control samples. On the other hand, in fruits treated with malic acid, the antioxidant capacity and activity of antioxidant enzymes including peroxidase, catalase, superoxide dismutase, and ascorbate peroxidase increased.
 
Conclusion
As a general conclusion, malic acid with a concentration of 4% in all studied intervals had significant effects at a statistical level of 5% on improving the antioxidant activities of cherry fruits during the storage period.
 

کلیدواژه‌ها [English]

  • Chilling injury
  • Free radicals
  • Treatment
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