Journal
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
Volume 59, Issue 4, Pages 1588-1597Publisher
SPRINGER INDIA
DOI: 10.1007/s13197-021-05170-w
Keywords
Apricot; Ultrasonic; Calcium; Pectin; Storage
Categories
Funding
- Fundamental Research Funds for the Central Nonprofit Research Institution of CAF Project [CAFYBB2017ZA004-4]
- Key Scientific Research in Henan Colleges and University [20A550011]
- Fundamental Research Funds for the Central Non-profit Research Institution of CAF [CAFYBB2018GB001]
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The study found that after calcium and ultrasonic treatment, the firmness of apricot fruit increased while juice yield and water-soluble pectin content decreased. Both treatments effectively reduced the activity of certain enzymes. Calcium treatment was more effective than ultrasonic treatment in delaying postharvest softening of apricot fruit.
This study was conducted to examine the effects of calcium treatment (2%, 20 min) and ultrasonic treatment (400 W, 20 min) on postharvest apricot fruit during storage. The results showed that after calcium and ultrasonic treatment, compared with the control, the firmness of apricot fruit increased by 41.53% and 3.83% at 16 d, but juice yield and water-soluble pectin (WSP) content decreased by 8.26% and 3.55%, 28.57% and 4.08%, respectively. Both calcium and ultrasonic treatment were more effective in reducing polygalacturonase (PG), beta-Galactosidase (beta-Gal), pectin methylesterase (PME), polyphenol oxidase (PPO) and peroxidase (POD) activity. Moreover, fruit firmness was significantly negatively correlated with juice yield, WSP and PPO, and positively correlated with PG and beta-Gal, PPO and POD. In contrast, calcium treatment was more effective than ultrasonic treatment in delaying postharvest softening of apricot.
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