کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7620676 | 1494505 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of phenolics, betacyanins and antioxidant activities of the seed, leaf, sprout, flower and stalk extracts of three Amaranthus species
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کلمات کلیدی
ORACLC–ESI–MSAmaranthus cruentusAmaranthus caudatusBetacyaninACRAAETPTZCAEGAETFCUHPLCTPITPCFRAPTBCACAAAPHLC–MS - LC-MSAmaranthus - آمارانتوسBioactive non-nutrients - بیوماس غیر مواد مغذیFood analysis - تجزیه و تحلیل مواد غذاییFood composition - ترکیب مواد غذاییoxygen radical absorption capacity - ظرفیت جذب رادیکال رادیکالAntioxidant activity - فعالیت آنتیاکسیدانیPhenolic - فنولیTotal phenolic content - محتوای فنلی کلascorbic acid equivalent - معادل اسید اسکوربیکGallic acid equivalent - معادل اسید گالیکtrolox equivalent - معادل ترولوکسcatechin equivalent - معادل کاتچینTotal flavonoid content - مقدار کل فلاونوئیدAmaranthus hypochondriacus - هیپوخاندریاک آمارانتوسferric reducing antioxidant power - کاهش قدرت آنتی اکسیدان آهنUltra High Performance Liquid Chromatography - کروماتوگرافی مایع با کارایی فوق العاده بالا
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Hydrophilic extracts from different parts including leaves, stalks, seeds, flowers and sprouts of 3 Amaranthus species (Amaranthus hypochondriacus, Amaranthus caudatus and Amaranthus cruentus) were characterized for their phytochemical profiles including the phenolics and betacyanins by UHPLC and LC-ESI-MS, and their antioxidant activities by FRAP and ORAC assays. The main betacyanins in Amaranthus samples were identified to be amaranthine and isoamaranthine. Eleven phenolic compounds (gallic acid, protocatechuic acid, chlorogenic acid, gentistic acid, 2,4-dihydroxybenzoic acid, ferulic acid, salicylic acid, rutin, ellagic acid, kaempferol-3-rutinoside and quercetin) were identified in the extracts of different parts of Amaranthus. The total phenolic content (TPC) ranged from 1.04 to 14.94 mg GAE/g DW; the total flavonoid content (TFC) ranged from 0.27 to 11.40 mg CAE/g DW; while the total betalain content (TBC) ranged from 0.07 to 20.93 mg/100 g DW. FRAP values ranged from 0.63 to 62.21 μmol AAE/g DW and ORAC ranged from 30.67 to 451.37 μmol TE/g DW. The leaves of Amaranthus showed the highest TPC, TFC, TBC, FRAP and ORAC values; while the seeds and stalks the lowest. There was a strong correlation between TPC, TBC, TFC and the antioxidant activity. The result suggests that all parts of the Amaranthus plant can be a good source of antioxidants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Composition and Analysis - Volume 37, February 2015, Pages 75-81
Journal: Journal of Food Composition and Analysis - Volume 37, February 2015, Pages 75-81
نویسندگان
Hongyan Li, Zeyuan Deng, Ronghua Liu, Honghui Zhu, Jamie Draves, Massimo Marcone, Yong Sun, Rong Tsao,