Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel
Sweetpotato (SP) is one of the world's most important, versatile, and underexploited foods. However, the quality and nutritional composition of sweetpotato roots (SPRs) can rapidly deteriorate under adverse postharvest conditions. Improving the postharvest quality and storability of SP is essen...
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Elsevier
2025-06-01
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| Series: | Carbohydrate Polymer Technologies and Applications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666893925001239 |
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| author | Ragab Abouzeid Peyman Sadeghi David H. Picha Qinglin Wu |
| author_facet | Ragab Abouzeid Peyman Sadeghi David H. Picha Qinglin Wu |
| author_sort | Ragab Abouzeid |
| collection | DOAJ |
| description | Sweetpotato (SP) is one of the world's most important, versatile, and underexploited foods. However, the quality and nutritional composition of sweetpotato roots (SPRs) can rapidly deteriorate under adverse postharvest conditions. Improving the postharvest quality and storability of SP is essential. This study focuses on extracting and characterizing cellulose nanomaterials (CNMs), pectin, and phenolic compounds from sweetpotato peel (SPP) as components for bio-based coatings using an eco-friendly approach. SPP was found to contain cellulose (40.23 %), lignin (19.12 %), hemicellulose (10.81 %), and pectin (19.84 %). Anthocyanin extracts exhibited pH-sensitive color changes and antioxidant activity. The extracted CNMs displayed high crystallinity (85 %), particularly for cellulose nanocrystals. Rheological studies revealed that CNMs and pectin suspensions exhibited shear-thinning and viscoelastic properties, making them suitable for coatings. The total phenolic content and antioxidant activity were 7.3 and 6.8 mg gallic acid equivalent/g, respectively. Ethanol extraction showed higher antioxidant efficiency (22.8 mg Trolox equivalents/g). Nanocoatings containing CNMs, pectin, phenolic compounds, and essential oils reduced respiration rates by up to 72 % and minimized weight loss by 51 % compared to uncoated controls. This work demonstrates the potential of valorizing SPP for sustainable coatings to extend SPR's shelf-life and quality. |
| format | Article |
| id | doaj-art-d68b87a4b5f1468fa1fa8e5c36d1f2f4 |
| institution | Kabale University |
| issn | 2666-8939 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Carbohydrate Polymer Technologies and Applications |
| spelling | doaj-art-d68b87a4b5f1468fa1fa8e5c36d1f2f42025-08-20T03:45:10ZengElsevierCarbohydrate Polymer Technologies and Applications2666-89392025-06-011010078510.1016/j.carpta.2025.100785Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peelRagab Abouzeid0Peyman Sadeghi1David H. Picha2Qinglin Wu3School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA, 70803, United StatesSchool of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA, 70803, United StatesSchool of Plant, Environmental and Soil Sciences, Louisiana State University AgCenter, Baton Rouge, LA 70803, United StatesSchool of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA, 70803, United States; Corresponding author.Sweetpotato (SP) is one of the world's most important, versatile, and underexploited foods. However, the quality and nutritional composition of sweetpotato roots (SPRs) can rapidly deteriorate under adverse postharvest conditions. Improving the postharvest quality and storability of SP is essential. This study focuses on extracting and characterizing cellulose nanomaterials (CNMs), pectin, and phenolic compounds from sweetpotato peel (SPP) as components for bio-based coatings using an eco-friendly approach. SPP was found to contain cellulose (40.23 %), lignin (19.12 %), hemicellulose (10.81 %), and pectin (19.84 %). Anthocyanin extracts exhibited pH-sensitive color changes and antioxidant activity. The extracted CNMs displayed high crystallinity (85 %), particularly for cellulose nanocrystals. Rheological studies revealed that CNMs and pectin suspensions exhibited shear-thinning and viscoelastic properties, making them suitable for coatings. The total phenolic content and antioxidant activity were 7.3 and 6.8 mg gallic acid equivalent/g, respectively. Ethanol extraction showed higher antioxidant efficiency (22.8 mg Trolox equivalents/g). Nanocoatings containing CNMs, pectin, phenolic compounds, and essential oils reduced respiration rates by up to 72 % and minimized weight loss by 51 % compared to uncoated controls. This work demonstrates the potential of valorizing SPP for sustainable coatings to extend SPR's shelf-life and quality.http://www.sciencedirect.com/science/article/pii/S2666893925001239SweetpotatoPeelCellulose nanomaterialsPectinAntioxidantWaste valorization |
| spellingShingle | Ragab Abouzeid Peyman Sadeghi David H. Picha Qinglin Wu Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel Carbohydrate Polymer Technologies and Applications Sweetpotato Peel Cellulose nanomaterials Pectin Antioxidant Waste valorization |
| title | Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| title_full | Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| title_fullStr | Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| title_full_unstemmed | Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| title_short | Sustainable nanocoatings for agricultural produce: A biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| title_sort | sustainable nanocoatings for agricultural produce a biodegradable approach using cellulose nanomaterials and pectin from sweet potato peel |
| topic | Sweetpotato Peel Cellulose nanomaterials Pectin Antioxidant Waste valorization |
| url | http://www.sciencedirect.com/science/article/pii/S2666893925001239 |
| work_keys_str_mv | AT ragababouzeid sustainablenanocoatingsforagriculturalproduceabiodegradableapproachusingcellulosenanomaterialsandpectinfromsweetpotatopeel AT peymansadeghi sustainablenanocoatingsforagriculturalproduceabiodegradableapproachusingcellulosenanomaterialsandpectinfromsweetpotatopeel AT davidhpicha sustainablenanocoatingsforagriculturalproduceabiodegradableapproachusingcellulosenanomaterialsandpectinfromsweetpotatopeel AT qinglinwu sustainablenanocoatingsforagriculturalproduceabiodegradableapproachusingcellulosenanomaterialsandpectinfromsweetpotatopeel |