Possible physiological mechanism of exogenous vitamin E influencing shelf life, physicochemical quality, and microorganism of fresh-cut water chestnuts
Haixia Ye, Jinmin Wen, Shiyun Wang, Ying Zhang, Bingbing Wu, Siwei Liu and Xinru Chen contributed equally to this study and can be considered co-first authors.
Abstract
Prolonging shelf life of fresh-cut water chestnuts (FCWC) by vitamin E (vit E) was investigated. Browning degree, decay degree, and edible quality (EQ) of FCWC were evaluated as evaluation indexes of shelf life. Meanwhile, total soluble solids concentration, titratable acid (TA) concentration, ascorbic acid (AA) concentration, hardness, ethylene concentration, polyphenol oxidase (PPO) activity, peroxidase (POD) activity, total phenols (TP) concentration, counts of thermophilic bacteria, yeasts, and molds colonies were analyzed. Shelf life of FCWC could be prolonged for 4 days by soaking them in 0.04% (v v−1) vit E anhydrous ethanol (1% [v v−1]) solution for 30 min. Vit E probably inhibited the increasing of PPO and POD activities, and the declining of TP concentration and hardness. Vit E had little effect on counts of thermophilic bacteria, yeasts, and molds colonies of FCWC. These results indicated that vit E could prolong shelf life of FCWC.
Novelty impact statement
- Vitamin E (vit E) extents shelf life of fresh-cut water chestnuts for 4 days.
- Vit E inhibits browning by reacting with oxygen or by reducing polyphenol oxidase and peroxidase activities.
- Vit E has no effect on total soluble solids, titratable acid, ascorbic acid, and ethylene concentration.
CONFLICT OF INTERESTS
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
AUTHOR CONTRIBUTIONS
Haixia Ye: Formal analysis. Shiyun Wang: Formal analysis. Jinmin Wen: Formal analysis. Ying Zhang: Formal analysis. Bingbing Wu: Formal analysis. Siwei Liu: Formal analysis. Xinru Chen: Formal analysis. Yongqian Xiao: Formal analysis. Chengtao Wang: Funding acquisition; project administration; supervision. Jianjun Hou: Funding acquisition; project administration; supervision. Ming Ni: Data curation; resources; validation; visualization. Xian Xia: Funding acquisition; investigation; writing – review and editing. Yulin Li: Conceptualization; funding acquisition; methodology; project administration; supervision; writing – review and editing.
Open Research
DATA AVAILABILITY STATEMENT
All data are available.