Research output: Contribution to journal › Article › peer-review
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Journal | FARADAY DISCUSSIONS |
---|---|
Date | Accepted/In press - 7 Feb 2017 |
Date | E-pub ahead of print - 7 Feb 2017 |
Date | Published (current) - 2017 |
Volume | 202 |
Number of pages | 12 |
Pages (from-to) | 31-42 |
Early online date | 7/02/17 |
Original language | English |
Mango peel is the major by-product of mango processing, and compromises 7-24% of the total mango weight. In this study, pectin was extracted from mango peel waste by using subcritical water extraction (SWE) in the absence of mineral acid. A highest yield of 18.34% was achieved from the Kesar variety and the pectin was characterised using ATR-IR spectroscopy, TGA and 13C solid-state NMR spectroscopy to confirm the structure. The degree of esterification (DE) of the pectin was analysed with both titrimetry and 13C solid-state NMR spectroscopy, and a high DE (>70%) was observed for all three varieties (Keitt, Sindhri and Kesar). This is the first report on acid-free subcritical water extraction of pectin from mango peel, which provides a green route for the valorisation of mango peel waste and contributes to a source of biobased materials and chemicals for a sustainable 21st century.
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