Pectin is a natural structural polymer that is extensively used in food industry, medicinal and pharmaceutical fields. Considering their potential applications, in this work, microwave-assisted and conventional extraction were evaluated to extract pectin from orange peel by acid hydrolysis using citric acid as extractant. For conventional extraction, temperatures higher than 60°C and long extraction times were necessary to obtained pectin yields of 9.0%. Under convention conditions of extraction, the degree of esterification of pectin was 55.0%. The extraction procedure assisted by microwave was optimized using an experimental design of 3 factors and 2 levels, analyzing the effect of operational variables influence in the pectin yield. The optimization of pectin extraction condition showed that temperature of 55°C, extraction time of 6 min, and solid/liquid ratio of 0.02 mg/mL, are necessary to obtained pectin yields of 25.0%. Under the optimal extraction condition, the degree of esterification of pectin was about 75%. According to the ANOVA analysis, time was the factor that more influence had on yields of pectin. These results showed that microwave-assisted procedure allows obtaining pectin with suitable properties from orange peel over mild operation conditions.
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Valorization of orange peel as a source of pectin
Published:
14 November 2021
by MDPI
in The 25th International Electronic Conference on Synthetic Organic Chemistry
session Bioorganic, Medicinal and Natural Products Chemistry
Abstract:
Keywords: pectin; valorization; extraction
Comments on this paper
Michael Velez
2 December 2021
Thank you for sharing this valuable research paper about the valorization of orange peel as a source of pectin. In this academic research paper, I have learned some great information about this topic. As a student, I really like this academic paper, I hope it will be an inspiration to make my academic research paper. Recently I got this resource https://onlineplagiarismchecker.net/blog/what-is-plagiarism where I know about how we can write plagiarism-free academic assignments, As well as it will help to enhance my writing skills. Anyway, I appreciate the editor for publishing this academic research with us.
anna brown
2 December 2021
Hi, I think many plants have pectin, the peel of citrus fruits such as oranges is particularly rich in pectin. which constitutes approximately 40–45% of the total bulk of the processed citrus fruit, is a good source for the extraction of pectin. Appreciated for this good paper with some valuable information.