کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585419 | 1492038 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Postharvest changes in the phenolic profile of watercress induced by post-packaging irradiation and modified atmosphere packaging
ترجمه فارسی عنوان
تغییرات پس از زایمان در مشخصات فنل کوهنوردی ناشی از پرتودرمانی پس از بسته بندی و بسته بندی محیط اصلاح شده
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The effects of γ-ray irradiation and modified atmosphere packaging (MAP) on watercress (Nasturtium officinale R. Br.) phenolic compounds were evaluated after 7-day storage at 4â¯Â°C. Irradiation doses of 1, 2 and 5â¯kGy were tested, as well as vacuum-packaging and MAP enriched with 100% N2 and Ar. A non-irradiated, air-packaged control was included in all experiments. p-Coumaric acid was the most abundant compound in fresh watercress, followed by quercetin-3-O-sophoroside and isorhamnetin-O-hydroxyferuloylhexoside-O-hexoside. Four kaempferol glycoside derivatives were identified for the first time in this species. In general, flavonoids predominated over phenolic acids. Samples stored under vacuum and irradiated at 2â¯kGy revealed lower phenolic levels. Ar-enriched MAP and control conditions preserved the initial phenolic content. The 5â¯kGy dose also maintained concentrations of flavonoids and total phenolic compounds, but increased the phenolic acids content. Additionally, flavonoids were found strongly correlated to DPPH scavenging activity and β-carotene bleaching inhibition capacity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 254, 15 July 2018, Pages 70-77
Journal: Food Chemistry - Volume 254, 15 July 2018, Pages 70-77
نویسندگان
José Pinela, Lillian Barros, João C.M. Barreira, Ana Maria Carvalho, M. Beatriz P.P. Oliveira, Celestino Santos-Buelga, Isabel C.F.R. Ferreira,