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In order to investigate the food nutrition and safety of potato, the objective of the present study is to quantify glycoalkaloids (α-chaconine and α-solanine) and phenolic compounds in three potato cultivars, namely, Russet Burbank, Atlantic, and Shepody, grown in Hebei, China, and these two classes of biologically active compounds in commercial dehydrated potato flakes were also investigated. The total glycoalkaloid levels in whole potatoes ranged from 4.72 mg/kg for Shepody potatoes to 34.45 mg/kg for Russet Burbank potatoes. The ratio of α-chaconine to α-solanine in whole potatoes ranged from 0.41 for Russet Burbank potatoes to 3.61 for Atlantic potatoes. The removal rate of total glycoalkaloids in Russet Burbank potatoes during dehydrated potato flake processing is 90.0%. Chlorogenic acid is the dominant phenolic compound in Russet Burbank potatoes. By contrast, Atlantic and Shepody potatoes contain considerable caffeic acid. The loss rate of phenolic compounds in Russet Burbank during dehydrated potato flake processing is 50.47%.


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Glycoalkaloids and phenolic compounds in three commercial potato cultivars grown in Hebei, China

Show Author's information Cheng-Yu Jina,b,1Hong Liuc,1Dan Xua,bFan-Kui Zenga( )Yu-Ci Zhaoa,bHai ZhangdGang Liua( )
Research & Development Center for Eco-material and Eco-Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
University of Chinese Academy of Sciences, Beijing 100049, China
CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Zhangjiakou Hongji Agriculture Science and Technology Development Co. Ltd, Zhangjiakou 076576, China

1 These authors contributed to the work equally and should be regarded as co-firstauthors.

Peer review under responsibility of KeAi Communications Co., Ltd.

Abstract

In order to investigate the food nutrition and safety of potato, the objective of the present study is to quantify glycoalkaloids (α-chaconine and α-solanine) and phenolic compounds in three potato cultivars, namely, Russet Burbank, Atlantic, and Shepody, grown in Hebei, China, and these two classes of biologically active compounds in commercial dehydrated potato flakes were also investigated. The total glycoalkaloid levels in whole potatoes ranged from 4.72 mg/kg for Shepody potatoes to 34.45 mg/kg for Russet Burbank potatoes. The ratio of α-chaconine to α-solanine in whole potatoes ranged from 0.41 for Russet Burbank potatoes to 3.61 for Atlantic potatoes. The removal rate of total glycoalkaloids in Russet Burbank potatoes during dehydrated potato flake processing is 90.0%. Chlorogenic acid is the dominant phenolic compound in Russet Burbank potatoes. By contrast, Atlantic and Shepody potatoes contain considerable caffeic acid. The loss rate of phenolic compounds in Russet Burbank during dehydrated potato flake processing is 50.47%.

Keywords: Phenolic compounds, Potato, Glycoalkaloids, Dehydrated potato flake

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Publication history

Received: 15 October 2017
Revised: 23 January 2018
Accepted: 17 February 2018
Published: 24 February 2018
Issue date: June 2018

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© 2018 “Society information”.

Acknowledgements

This work was supported by the China Agriculture Research System (CARS-10), the National Key Research and Development Plan (2016YFD0401302-02), the Science and Technology Major Project of Gansu Province (1602NKDJ022-1), the Natural Science Foundation of Gansu Province (1501RJZA004) and the Science and Technology Planing Project of Lanzhou (2016-3-123).

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This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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