One-pot production of Carboxymethyl Holocelluloses from mango and pineapple wastes optimized via design of experiments
The polysaccharide fraction of lignocellulosic biomass represents a promising resource for producing high value-added carbohydrate derivatives. This study aimed to develop a fast and sustainable one-pot process for synthesizing carboxymethyl holocellulose (CMHC) from pineapple crown (PACel) and mang...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
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| Series: | Carbohydrate Polymer Technologies and Applications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666893925001604 |
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| Summary: | The polysaccharide fraction of lignocellulosic biomass represents a promising resource for producing high value-added carbohydrate derivatives. This study aimed to develop a fast and sustainable one-pot process for synthesizing carboxymethyl holocellulose (CMHC) from pineapple crown (PACel) and mango seed tegument (MACel) abundant agro-food wastes, eliminating the need for polysaccharide separation. Holocellulose (cellulose and hemicellulose) was efficiently extracted using a mild acid/peroxide-alkali (APA) treatment, which preserved hemicellulose and generated highly reactive cellulose fractions detected by XRD. Carboxymethylation conditions were screened using a d-Optimal design of experiments, and the process was optimized via response surface methodology (RSM). Degree of substitution reached up to 1.63, with mass yields of up to 246.9% (w/w), surpassing literature values. Statistical models showed high accuracy (F > 36.36, p 〈 0.0001, R² 〉 0.9655). The proposed method offers higher reactivity, lower reagent consumption, and reduced processing time (2:15 h), demonstrating the feasibility of converting agro-waste holocelluloses into high quality water-soluble CMHC products. This research contributes to the efficient valorization of underutilized bioresources in an innovative, rapid, scalable and more environmentally friendly biorefinery process, producing a viable alternative polymer to commercial CMC, with potential applications in the food, cosmetic, pharmaceutical, and oil drilling fluids industries. |
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| ISSN: | 2666-8939 |