Openly accessible

Characterization of Phenolics in Rejected Kiwifruit and Their Antioxidant Potential

Zhu, C, Chou, O, Lee, FY, Wang, Z, Barrow, Colin, Dunshea, FR and Suleria, Hafiz 2021, Characterization of Phenolics in Rejected Kiwifruit and Their Antioxidant Potential, Processes, vol. 9, no. 5, pp. 1-24, doi: 10.3390/pr9050781.

Attached Files
Name Description MIMEType Size Downloads

Title Characterization of Phenolics in Rejected Kiwifruit and Their Antioxidant Potential
Author(s) Zhu, C
Chou, O
Lee, FY
Wang, Z
Barrow, ColinORCID iD for Barrow, Colin orcid.org/0000-0002-2153-7267
Dunshea, FR
Suleria, HafizORCID iD for Suleria, Hafiz orcid.org/0000-0002-2450-0830
Journal name Processes
Volume number 9
Issue number 5
Article ID 781
Start page 1
End page 24
Total pages 24
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2021
ISSN 2227-9717
Keyword(s) rejected kiwifruit
food waste
phenolic compounds
polyphenols
antioxidant potential
LC-ESI-QTOF-MS/MS
Summary Kiwifruit hold significant nutritional value and are a good source of antioxidants due to their diverse range of bioactive compounds. Kiwifruit waste is generated throughout the food supply chain, particularly during transportation and storage. Kiwifruit rejected from the retail market due to unfavorable appearance still possess potential economic value as kiwifruit are abundant in phenolic compounds. The present work studied the phenolic profile and antioxidant potential of rejected kiwifruit, including SunGold (Actinidia chinensis), Hayward (Actinidia deliciosa), and round organic Hayward (Actinidia deliciosa). Regarding phenolics estimation, SunGold possessed the highest TPC (0.72 ± 0.01 mg GAE/g), while Hayward exhibited the highest TFC (0.05 ± 0.09 mg QE/g). In antioxidant assays, SunGold showed the highest antioxidant activities in DPPH (0.31 ± 0.35 mg AAE/g), FRAP (0.48 ± 0.04 mg AAE/g), ABTS (0.69 ± 0.07 mg AAE/g), •OH-RSA (0.07 ± 0.03 mg AAE/g) assays, and FICA (0.19 ± 0.07 mg EDTA/g), whereas Hayward showed the highest RPA (0.09 ± 0.02 mg AAE/g) and TAC (0.57 ± 0.04 mg AAE/g). Separation and characterization of phenolics were conducted using LC-ESI-QTOF-MS/MS. A total of 97 phenolics were tentatively characterized from rejected SunGold (71 phenolics), Hayward (55 phenolics), and round organic Hayward (9 phenolics). Hydroxycinnamic acids and flavonols were the most common phenolics characterized in the three samples. The quantitative analysis was conducted by HPLC-PDA and found that chlorogenic acid (23.98 ± 0.95 mg/g), catechin (23.24 ± 1.16 mg/g), and quercetin (24.59 ± 1.23 mg/g) were the most abundant phenolics present in the rejected kiwifruit samples. The notable presence of phenolic compounds and their corresponding antioxidant capacities indicate the potential value of rescuing rejected kiwifruit for further utilization and commercial exploitation.
Language eng
DOI 10.3390/pr9050781
Indigenous content off
Field of Research 0904 Chemical Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30150741

Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in TR Web of Science
Scopus Citation Count Cited 2 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 35 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 10 May 2021, 08:18:43 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.