Utilization of coffee pulp waste for rapid recovery of pectin and polyphenols for sustainable material recycle.
IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore
View Archive Info| Field | Value | |
| Relation |
http://ir.cftri.com/14794/
http://dx.doi.org/10.1016/j.wasman.2020.10.045 |
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| Title |
Utilization of coffee pulp waste for rapid recovery of pectin and
polyphenols for sustainable material recycle.
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| Creator |
Manasa, V.
Aparna, P. Anu Appaiah, K. A. |
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| Subject |
04 Coffee
07 Waste utilization |
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| Description |
Coffee pulp is one of the major underutilized byproduct of coffee processing in farm level. Disposal of this
agro-industrial waste has become one of the most challenging tasks for coffee planters. However, most of
the efforts are towards the management of coffee pulp as an effluent, and not-on re-use. The problem is
compounded due to the large volumes produced in diluted forms, which makes it expensive to reuse. The
preliminary proximate analysis of coffee pulp indicated it to be rich in pectin and polyphenols. The efficacy of various chemicals like ethanol, sulfuric acid, hydrochloric acid, nitric acid, ammonium oxalate and
metal salts for effective precipitation of pectin from coffee pulp was evaluated. HPLC characterization of
the extracted and concentrated polyphenols fractions was analyzed. The maximum extraction of pectin
was achieved by using metal salts and ethanol with 6.0% and 6.7% on wet weight basis respectively. The
equivalent weight of extracted pectin (1180.5 mg/g) was found to be higher than that of commercial pectin (724.8 mg/g). The methoxyl content of the commercial pectin and crude pectin were 9.3 and 5.6%
respectively. Gallic, vanillin, catechin, ethyl catechol, coumaric, Caffeic, and ferulic acid were the major
polyphenols as quantified by the HPLC. The polyphenol fraction showed a good antioxidant activity with
phosphomolybdate, FRAP, DPPH, and ABTS radicals respectively. The sustainable utilization of coffee pulp
as a source of pectin and polyphenols with good antioxidant activities could help to solve the problem of
waste generated in coffee processing in farm level.
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| Date |
2020
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| Type |
Article
PeerReviewed |
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| Format |
pdf
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| Language |
en
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| Identifier |
http://ir.cftri.com/14794/1/Waste%20Management%202021.pdf
Manasa, V. and Aparna, P. and Anu Appaiah, K. A. (2020) Utilization of coffee pulp waste for rapid recovery of pectin and polyphenols for sustainable material recycle. Waste Management, 120. pp. 762-771. ISSN 0956-053X |
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