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Potential Functional Byproducts from Guava Purée Processing
Si Yi Lim1, Paik Yean Tham1, Hilary Yi Ler Lim1
1Dept. of Chemical Science, Faculty of Science, Univ. Tunku Abdul Rahman, Malaysia.
Journal of Food Science
|May 11, 2018
Summary
Guava processing byproducts (refiner, siever, decanter) show potential as sources of dietary fiber with antioxidant and prebiotic activities. Further study is needed for health applications and sustainable valorization.
Area of Science:
- Food Science and Technology
- Nutritional Biochemistry
- Agricultural Waste Valorization
Background:
- Guava processing generates significant waste, necessitating studies on its valorization.
- Understanding the composition and functionality of guava byproducts is crucial for their effective utilization.
Purpose of the Study:
- To investigate the chemical composition and functional properties of three guava processing byproducts: refiner, siever, and decanter.
- To assess their potential for health-promoting activities and as sources of valuable compounds.
Main Methods:
- Chemical analysis of lipid, protein, carbohydrates, and fiber content.
- Quantification of prebiotic activity score, water holding capacity (WHC), oil holding capacity (OHC), and cation exchange capacities.
- Assessment of bile acid binding, glucose dialysis retardation (GDR), antioxidant capacity (DPPH assay), and alpha-amylase inhibitory capacity (AIC).
Main Results:
- Refiner byproduct showed high lipid, protein, and phytate content with significant deoxycholic acid binding and prebiotic activity.
- Siever byproduct was rich in low molecular weight carbohydrates and tannins, exhibiting high chenodeoxycholic acid binding and DPPH radical scavenging capacity.
- Decanter byproduct, high in cellulose, demonstrated high cholic acid binding, GDR, AIC, and prebiotic activity.
Conclusions:
- Guava byproducts possess valuable physicochemical properties and functional activities, indicating potential for health-promoting applications.
- These byproducts can be valorized into marketable products, supporting sustainable business development for guava processors.
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