Incorporation of Spirulina Extract in Pectin Edible Coating for Use as Antimicrobial Agent for Some Fruits | ||
| Egyptian Journal of Food Science | ||
| Volume 52, Issue 2, November 2024, Pages 203-216 PDF (1.19 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejfs.2024.325647.1198 | ||
| Authors | ||
| Abeer Mohamed Fathei Elbaz* 1; Amgad Ahmed El-kady2; Ammar Al-Farga3 | ||
| 1food packaging and engineering -Food technology institute-ARC -Egypt | ||
| 2Food engineering and Food Packaging Dept., Food Tech., Res., Institute, Agric., Res., Center, Giza, Egypt. | ||
| 3Department of Biochemistry, College of Jeddah, Jed2Biochemistry Department, Faculty of Science, University of Jeddah, Jeddah 21577, Saudi Arabiadah, Saudia Arabia | ||
| Abstract | ||
| Abstract Our work aimed to investigate the incorporation of spirulina extract (which was extracted by different solvents) in edible pectin solution to produce eco-friendly edible coating materials. Ethanolic Spirulina extract (SE) showed the highest yield (17.5%), phenolic content (19.55 mg GAE/g), total carotenoids (5.54 mg/g) and antioxidant activity (78.26%). The dried SE showed the highest inhibition zone for all tested microbial strains at concentration of 350 and 500 mg/ml. Incorporation of dried SE in pectin coating solution at concentration of 200 mg/ml led to curb the bacterial growth and increased the inhibition rate of E. coli 0517-H7; and S. aureus. Guava and Apple slices samples coated with pectin solution containing 1% SE showed lower total bacterial count, also weight loss was reduced from 11.5% to 0.4% at Guava fruit, and apple slices from 7.8% to 2.5% during 24 days at cold storage. Infected fruits were decreased over a period of storage. Rate of firmness loss was reduced from (-13.9 to -5.05 gf/d) for Guava fruit and from (-9.1 to -1.05 gf/d) for apple slices which coated with 1% SE with pectin film solution during storage. Key words: Spirulina, pectin coating, Guava, Apple, microbial quality, Sensory attributes. | ||
| Keywords | ||
| Guava; Apple; Sensory attributes | ||
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