Effects of Variety and Pulsed Electric Field on the Quality of Fresh-Cut Apples
Abstract
:1. Introduction
2. Materials and Methods
2.1. Raw Materials
2.2. Sample Preparation
2.3. PEF Treatment
2.4. Browning Index (BI)
2.5. Weight Loss
2.6. Firmness
2.7. Titratable Acid (TA) Content
2.8. Total Phenol (TP) Content
2.9. Malondialdehyde (MDA) Content
2.10. PPO and POD Activity
2.11. Microbiological Analysis
2.12. Sensory Evaluation
2.13. Statistical Analysis
3. Results and Discussion
3.1. Variety Effects on the Storage Quality of Fresh-Cut Apples
3.2. Principal Component Analysis
Principal Components | Eigenvalue | Contribution Rate /% | Cumulative Contribution Rate /% |
---|---|---|---|
1 | 3.925 | 56.065 | 56.065 |
2 | 1.192 | 17.029 | 73.094 |
3 | 0.932 | 13.321 | 86.415 |
4 | 0.460 | 6.578 | 92.993 |
5 | 0.326 | 4.660 | 97.653 |
6 | 0.113 | 1.619 | 99.271 |
7 | 0.051 | 0.729 | 100.000 |
Index | Principal Component 1 | Principal Component 2 | ||
---|---|---|---|---|
Load Factor | Eigenvector | Load Factor | Eigenvector | |
Weight loss | −0.961 | −0.485 | 0.057 | 0.053 |
Browning index | −0.893 | −0.451 | 0.069 | 0.063 |
Storage time | −0.842 | −0.425 | −0.058 | −0.053 |
POD activity | −0.833 | −0.420 | 0.014 | 0.013 |
Firmness | 0.820 | 0.414 | −0.352 | −0.323 |
PPO activity | −0.271 | −0.137 | −0.804 | −0.737 |
Titratable acidity | 0.235 | 0.118 | 0.640 | 0.586 |
3.3. Effect of PEF Treatment on Physical Properties of Fresh-Cut Apples
3.4. Effect of PEF Treatment on Enzyme Activity and Nutrient Content of Fresh-Cut Apples
3.5. Microbial Analysis
3.6. Comprehensive Evaluation
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Li, Z.; Yang, H.; Fang, W.; Huang, X.; Shi, J.; Zou, X. Effects of Variety and Pulsed Electric Field on the Quality of Fresh-Cut Apples. Agriculture 2023, 13, 929. https://doi.org/10.3390/agriculture13050929
Li Z, Yang H, Fang W, Huang X, Shi J, Zou X. Effects of Variety and Pulsed Electric Field on the Quality of Fresh-Cut Apples. Agriculture. 2023; 13(5):929. https://doi.org/10.3390/agriculture13050929
Chicago/Turabian StyleLi, Zhihua, Hanli Yang, Wenbing Fang, Xiaowei Huang, Jiyong Shi, and Xiaobo Zou. 2023. "Effects of Variety and Pulsed Electric Field on the Quality of Fresh-Cut Apples" Agriculture 13, no. 5: 929. https://doi.org/10.3390/agriculture13050929