Effects of Freeze-Drying on Antioxidants in Tropical Fruits
Author Information
Author(s): Shofian Norshahida Mohamad, Hamid Azizah Abdul, Osman Azizah, Saari Nazamid, Anwar Farooq, Dek Mohd Sabri Pak, Hairuddin Muhammad Redzuan
Primary Institution: Universiti Putra Malaysia
Hypothesis
The study aims to evaluate the impact of freeze-drying on the antioxidant compounds and activity of selected tropical fruits.
Conclusion
Freeze-drying can preserve ascorbic acid in tropical fruits but may alter other antioxidant components and their activity.
Supporting Evidence
- Fresh starfruit had the highest total phenolic compounds compared to other fruits.
- Freeze-drying significantly affected the antioxidant activity of fresh fruits.
- Fresh mango and starfruit exhibited higher antioxidant activity than freeze-dried samples.
- Freeze-drying retained ascorbic acid levels in papaya better than in other fruits.
- β-Carotene levels were significantly reduced in freeze-dried mango and watermelon.
Takeaway
This study looks at how freeze-drying affects the good stuff in fruits that helps keep us healthy, like vitamins and antioxidants.
Methodology
The study involved measuring total phenolic compounds, ascorbic acid, and β-carotene in fresh and freeze-dried samples of five tropical fruits.
Limitations
The study does not explore the long-term effects of freeze-drying on antioxidant properties over extended storage periods.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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