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author:

Zhang, Y.-G. (Zhang, Y.-G..) [1] | Kan, H. (Kan, H..) [2] | Chen, S.-X. (Chen, S.-X..) [3] | Thakur, K. (Thakur, K..) [4] | Wang, S. (Wang, S..) [5] | Zhang, J.-G. (Zhang, J.-G..) [6] | Shang, Y.-F. (Shang, Y.-F..) [7] | Wei, Z.-J. (Wei, Z.-J..) [8]

Indexed by:

Scopus

Abstract:

The phenols in Diaphragma juglandis fructus (DJF), walnut pellicle (WP), and flowers of Juglans regia (FJR) from walnut were extracted using three methods (methanolic condensation reflux extraction, ultrasonic wave extraction, and enzyme assisted-extraction), and phenolics and antioxidant capacities of different extractions were compared. Overall, 50 phenolics were identified by HPLC-MS/MS with 41 compounds in DJF, 32 in WP, and 29 in FJR. It was observed that tannins in WP was higher than those in DJF and FJR. As for PCA, more than 70% of the variance was explained with the obvious comparison between the phenolic constituents. The phenolics in walnut contributed to remarkable antioxidant effect, with the highest effect observed in WP. This study presents the analysis and comparison of the phenols can be further extended for the development of functional walnut instant foods. © 2020 Elsevier Ltd

Keyword:

(+)-catechin (PubChem: CID 9064); (epi)gallocatechin-(epi)catechin (PubChem: CID 176920); 7-hydroxy-methylcoumarin (PubChem: CID 15028257); Afzelin (PubChem: CID 5316673); Antioxidant; Azelaic acid (PubChem: CID 2266); Caffeic acid (PubChem: CID 689043); Chrysin (PubChem: CID 5281607); Coumaroylquinic acid (PubChem: CID 9945785); Diaphragma juglandis fructus; Ellagic acid (PubChem: CID 5281855); Flower of Juglans regia; Hydroxymandelic acid (PubChem: CID 328); Isoquercitrin (PubChem: CID 5280804); Luteolin (PubChem: CID 5280637); Methyl gallate (PubChem: CID 7428); Monogalloyl-glucose (PubChem: CID 71308210); Myricitrin (PubChem: CID 5281673); Naringin (PubChem: CID 442428); p-coumaric acid (PubChem: CID 637542); p-Hydroxybenzoic (PubChem: CID 15044216); Phenolic compounds; Protocatehuic acid (PubChem: CID 72); Quercetin (PubChem: CID 5280343); Quercitrin (PubChem: CID 5280459); Quinic acid (PubChem: CID 6508); Syringic acid (PubChem: CID 10742); Taxifolin (PubChem: CID 439533); Tetragalloyl-glucose (PubChem: CID 442692); Trigalloyl-glucose (PubChem: CID 90116889); Walnut pellicle

Community:

  • [ 1 ] [Zhang, Y.-G.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
  • [ 2 ] [Kan, H.]Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
  • [ 3 ] [Chen, S.-X.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
  • [ 4 ] [Thakur, K.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
  • [ 5 ] [Wang, S.]College of Biological Science and Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Zhang, J.-G.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
  • [ 7 ] [Shang, Y.-F.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
  • [ 8 ] [Wei, Z.-J.]School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China

Reprint 's Address:

  • [Shang, Y.-F.]School of Food and Biological Engineering, Hefei University of TechnologyChina

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Source :

Food Chemistry

ISSN: 0308-8146

Year: 2020

Volume: 321

7 . 5 1 4

JCR@2020

8 . 5 0 0

JCR@2023

ESI HC Threshold:116

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 66

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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