کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8881920 1624952 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pulses of low intensity light as promising technology to delay postharvest senescence of broccoli
ترجمه فارسی عنوان
پالس های نور کم نور به عنوان تکنولوژی امیدوار کننده به تاخیر انداختن پس از تولد بروکلی
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Visible light irradiance may be a useful technology to delay postharvest senescence of green vegetables. In this work, we studied the effects of low-intensity white, red and far red light pulses on postharvest senescence of broccoli stored in the dark at 20 °C. Daily exposure for 2 h to 20-25 μmol m−2 s−1 of white light delayed yellowing and retained chloroplast components (chlorophyll and soluble proteins). The utilized light intensity was insufficient to re-initiated photosynthesis since total sugar content was lower than initials in irradiated florets. Light treatment resulted in a slower loss of sugars in comparison with the untreated samples, but was not affected by light quality. The effects of red light treatment on chlorophyll a and soluble protein degradation were similar to white light, and opposite to far red light. However, these treatments did not delay chlorophyll b degradation, suggesting that phytochromes could be involved in molecular mechanism of chlorophyll a and soluble protein degradation, but not of chlorophyll b.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Postharvest Biology and Technology - Volume 142, August 2018, Pages 107-114
نویسندگان
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