اثر هگزانال، اسانس شمعدانی عطری - روغن کدوی تخمه کاغذی و فرمولاسیون حفظ تازگی میوه روی انبارمانی میوه انگور رقم بیدانه سفید

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران

2 دانش آموخته کارشناسی ارشد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران

3 استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران

چکیده

اثر هگزانال، اسانس شمعدانی عطری، روغن کدوی تخمه کاغذی و فرمولاسیون حفظ تازگی میوه بر کیفیت و انبارمانی میوه انگور رقم بیدانه سفید در انبار بررسی شد. تیمارها شامل 1) شاهد خشک، 2) شاهد تر (حلال اتانول 2/0 درصد مورد استفاده در تهیه تیمارها)، 3) هگزانال 02/0 درصد، 4) فرمولاسیون حفظ تازگی میوه و 5) ترکیب اسانس شمعدانی عطری (01/0 درصد) و روغن کدوی تخمه کاغذی (1/0 درصد) بودند. میوه‌ها پس از تیمار به انباری با دمای 1±0 درجه سانتی‌گراد و رطوبت نسبی 90-85 درصد منتقل شدند. در شروع انبار و هر 15 روز، برخی پارامترهای میوه ارزیابی شدند. نتایج نشان داد کمترین میزان مواد جامد محلول (59/25 درصد) در تیمار فرمولاسیون حفظ تازگی میوه مشاهده شد که اختلاف معنی‌داری با تیمارهای شاهد داشت. هیچ یک از تیمارها بر اسیدیته قابل تیتراسیون، پی اچ، محتوای فنل کل و کیفیت خوراکی میوه اثر معنی‌داری نداشتند. تیمارهای شاهد با داشتن بیشترین میزان پوسیدگی (70 درصد) و کاهش وزن (3/9 درصد) و کمترین میزان سفتی (3/201 نیوتن بر میلی متر مربع) نسبت به سایر تیمارها از کیفیت کمتری برخوردار بودند. به طور کلی مؤثرترین تیمار در حفظ خصوصیات پس از برداشت انگور، تیمار فرمولاسیون حفظ تازگی میوه با داشتن کمترین میزان کاهش وزن، پوسیدگی، فعالیت آنزیم پلی فنل اکسیداز و تغییر رنگ چوب خوشه و نیز داشتن بیشترین میزان سفتی بود که به نظر می‌رسد اثر هم‌افزای هگزانال، اسانس شمعدانی عطری و روغن کدوی تخمه کاغذی توانسته کیفیت میوه انگور رقم بیدانه سفید را در طول دوره 2 ماهه انبار حفظ نماید.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of hexanal, Pelargonium. essential oil-Cucurbita pepo oil and enhanced freshness formulation (EFF) on storage life of grape cv. Bidaneh sefid

نویسندگان [English]

  • Mohammad Sayyari 1
  • Maryam Shabanloo 2
  • Ali Azizi 3
1 Associate Professor, Department of Horticultural Sciences, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran
2 Former M.Sc. Student, Department of Horticultural Sciences, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran
3 Assistant Professor, Department of Horticultural Sciences, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran
چکیده [English]

The effects of hexanal and Pelargonium. essential oil (PEO)-Cucurbita pepo oil (CPO) on the quality and storability of grape cv. Bidaneh Sefid during cold storage was investigated. The treatments included 1) controls as untreated fruuits, 2) Wet controls (treated fruits with solvent (0.02% 0f Ethanol) that was used in preparation of treatments), 3) hexanal, 4) EFF and 5) combination of PEO and CPO. After treatments, the fruits were stored at 0 ± 1° C and 65-60% RH. At the beginning of the storage, and every 15 days, some parameters were evaluated. The results showed that none of treatments had not significant effect on titratable acidity, pH, total phenol content and fruit quality. The lowest increase in soluble solids (35.59 %) was observed in EFF treatment, which had a significant difference with control untreated fruits. Control fruits with the highest rate of rot (3.5 score) and weight loss (9.3 %) and the lowest firmness (201.3 N mm-2) had less quality than other treated fruits. Hexanal treatment was more successful in maintaining color indices a* and L* in comparison with other treatments. In general, the most effective treatment in preservation postharvest attributes of grape was EFF treatment with significant effects in reducing weight loss, activity of the polyphenol oxidase enzyme, fruits rot and color change of rakis, which seems that good synergistic effects of hexanal treatment, PEO and CPO has maintained quality of grapevine fruits cv. Bidaneh Sefid during 2 months of storage.

کلیدواژه‌ها [English]

  • Cold storage
  • Decay
  • Phenol content
  • Polyphenol oxidase enzyme activity
  • weight loss
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