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Koyama R, Ishibashi M, Fukuda I, Okino A, Osawa R, Uno Y. Pre- and Post-Harvest Conditions Affect Polyphenol Content in Strawberry (Fragaria × ananassa). PLANTS 2022; 11:plants11172220. [PMID: 36079602 PMCID: PMC9460031 DOI: 10.3390/plants11172220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/15/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022]
Abstract
The strawberry fruit contains abundant polyphenols, such as anthocyanins, flavan-3-ol, and ellagitannin. Polyphenol enrichment improves the quality of strawberries and leads to a better understanding of the polyphenol induction process. We measured the total polyphenol content of strawberry fruits under different growth conditions, developmental stages, and treatment conditions during pre-harvest and post-harvest periods. High fruit polyphenol content was observed in cold treatment, which was selected for further analysis and optimization. A transcriptome analysis of cold-treated fruits suggested that the candidate components of polyphenols may exist in the phenylpropanoid pathway. Coverage with a porous film bag excluded the effects of drought stress and produced polyphenol-rich strawberry fruits without affecting quality or quantity. The degree of stress was assessed using known stress indicators. A rapid accumulation of abscisic acid was followed by an increase in superoxide dismutase and DPPH (2,2-Diphenyl-1-picrylhydrazyl) activity, suggesting that the strawberry fruits responded to cold stress immediately, reaching the climax at around 6 days, a trend consistent with that of polyphenol content. These findings enhance our understanding of the mechanism of post-harvest polyphenol accumulation and the value of strawberries as a functional food.
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Affiliation(s)
- Ryohei Koyama
- Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Misaki Ishibashi
- Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Itsuko Fukuda
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
- Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Akitoshi Okino
- FIRST, Tokyo Institute of Technology, J2-32, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Ro Osawa
- Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
- Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Yuichi Uno
- Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
- Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
- Correspondence:
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Kosugi T, Toyoizumi T, Ohba S, Hamabe N, Kamiya M, Nakajima T. Evaluation of DPPH activity, H-ORAC, antioxidant capacity and total polyphenol content in agricultural products of Shizuoka Prefecture. J JPN SOC FOOD SCI 2022. [DOI: 10.3136/nskkk.69.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Toru Kosugi
- Shizuoka Prefectural Research Institute of Agriculture and Forestry
| | | | - Seiji Ohba
- Shizuoka Prefectural Research Institute of Agriculture and Forestry
| | - Naoya Hamabe
- Izu Agricultural Center, Shizuoka Prefectural Research Institute of Agriculture and Forestry
| | - Michiaki Kamiya
- Shizuoka Prefectural Research Institute of Agriculture and Forestry
| | - Teruko Nakajima
- Shizuoka Prefectural Research Institute of Agriculture and Forestry
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