Presentation Information
[P02-185]Sustainable food packaging: bacterial cellulose films enriched with citrus peel pectin and marigold lutein for blueberry preservation
○Chiu-Mei Kuo1, Shao-Qian Huang1 (1. Department of Chemical Engineering, Chung Yuan Christian University (Taiwan))
Keywords:
bacterial cellulose,citrus peel pectin,marigold lutein,sustainable packaging,fruit preservation
[Purpose]
This study aimed to develop a bacterial cellulose-citrus peel pectin-marigold lutein (BC-CP-ML) composite packaging film, which uses bacterial cellulose (BC) as a base material and is mixed with pectin extracted from citrus peel (CP) and lutein extracted from marigold (ML), to evaluate its preservation effect on blueberries.
[Method]
100 g BC wet film was mixed with 1 g/L citrus peel pectin and 4 g/L marigold lutein (1:12, w:w) and homogenized at 7,600 rpm for 10 mins. Then, the BC-CP-ML composite packaging film was prepared by solution casting. The blueberry preservation test was conducted at 25℃, and the preservation effect was evaluated using indicators such as the blueberries’ weight loss, soluble solids, pH, titratable acidity, anthocyanin content, total bacterial count, and color difference (ΔE).
[Results]
Under 25℃ storage conditions, the weight loss, pH, total bacterial count, and ΔE of blueberries packaged with BC-CP-ML composite film on day 8 were 2.2%, 3.8, 2.5 Log CFU/g, and 3.1, respectively, which were 3.8-, 1.1-, 1.6-, and 4.1-fold lower than the unpackaged control group. The soluble solids, titratable acid, and anthocyanin contents were 12.8 °brix, 0.9%, and 85.5 mg/100g, respectively, which were 1.3-, 1.8-, and 1.3-fold higher than the unpackaged control group. These results indicate that the BC-CP-ML composite film exhibits superior water and gas barrier properties and antioxidant effects, reduces the respiration rate and metabolic activity of blueberries, minimizes the loss of moisture, anthocyanins, and bloom, delays the deterioration of blueberry quality, and enhances preservation.
[Consideration]
BC-CP-ML composite film effectively enhances fruit preservation and demonstrates its potential for sustainable packaging. Compared to traditional plastics, this composite film is not only environmentally friendly but also provides functional protection for fruit. However, further investigation is needed to explore its cost-effectiveness and the limits of its shelf-life extension in large-scale production.
[Conclusion]
BC-CP-ML composite film is a promising food packaging material that can effectively extend the shelf life of blueberries while also being environmentally sustainable and functional.
This study aimed to develop a bacterial cellulose-citrus peel pectin-marigold lutein (BC-CP-ML) composite packaging film, which uses bacterial cellulose (BC) as a base material and is mixed with pectin extracted from citrus peel (CP) and lutein extracted from marigold (ML), to evaluate its preservation effect on blueberries.
[Method]
100 g BC wet film was mixed with 1 g/L citrus peel pectin and 4 g/L marigold lutein (1:12, w:w) and homogenized at 7,600 rpm for 10 mins. Then, the BC-CP-ML composite packaging film was prepared by solution casting. The blueberry preservation test was conducted at 25℃, and the preservation effect was evaluated using indicators such as the blueberries’ weight loss, soluble solids, pH, titratable acidity, anthocyanin content, total bacterial count, and color difference (ΔE).
[Results]
Under 25℃ storage conditions, the weight loss, pH, total bacterial count, and ΔE of blueberries packaged with BC-CP-ML composite film on day 8 were 2.2%, 3.8, 2.5 Log CFU/g, and 3.1, respectively, which were 3.8-, 1.1-, 1.6-, and 4.1-fold lower than the unpackaged control group. The soluble solids, titratable acid, and anthocyanin contents were 12.8 °brix, 0.9%, and 85.5 mg/100g, respectively, which were 1.3-, 1.8-, and 1.3-fold higher than the unpackaged control group. These results indicate that the BC-CP-ML composite film exhibits superior water and gas barrier properties and antioxidant effects, reduces the respiration rate and metabolic activity of blueberries, minimizes the loss of moisture, anthocyanins, and bloom, delays the deterioration of blueberry quality, and enhances preservation.
[Consideration]
BC-CP-ML composite film effectively enhances fruit preservation and demonstrates its potential for sustainable packaging. Compared to traditional plastics, this composite film is not only environmentally friendly but also provides functional protection for fruit. However, further investigation is needed to explore its cost-effectiveness and the limits of its shelf-life extension in large-scale production.
[Conclusion]
BC-CP-ML composite film is a promising food packaging material that can effectively extend the shelf life of blueberries while also being environmentally sustainable and functional.
Comment
To browse or post comments, you must log in.Log in