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Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery: Towards a Zero Waste Mango Biorefinery

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Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery : Towards a Zero Waste Mango Biorefinery. / Matharu, Avtar S.; Houghton, Joseph A.; Lucas-Torres, Covadonga; Moreno, Andrés.

In: Green Chemistry, Vol. 18, No. 19, 07.10.2016, p. 5280-5287.

Research output: Contribution to journalArticle

Harvard

Matharu, AS, Houghton, JA, Lucas-Torres, C & Moreno, A 2016, 'Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery: Towards a Zero Waste Mango Biorefinery', Green Chemistry, vol. 18, no. 19, pp. 5280-5287. https://doi.org/10.1039/c6gc01178k

APA

Matharu, A. S., Houghton, J. A., Lucas-Torres, C., & Moreno, A. (2016). Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery: Towards a Zero Waste Mango Biorefinery. Green Chemistry, 18(19), 5280-5287. https://doi.org/10.1039/c6gc01178k

Vancouver

Matharu AS, Houghton JA, Lucas-Torres C, Moreno A. Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery: Towards a Zero Waste Mango Biorefinery. Green Chemistry. 2016 Oct 7;18(19):5280-5287. https://doi.org/10.1039/c6gc01178k

Author

Matharu, Avtar S. ; Houghton, Joseph A. ; Lucas-Torres, Covadonga ; Moreno, Andrés. / Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery : Towards a Zero Waste Mango Biorefinery. In: Green Chemistry. 2016 ; Vol. 18, No. 19. pp. 5280-5287.

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@article{7083ee14ff024eb9b869ba5b60c8327b,
title = "Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery: Towards a Zero Waste Mango Biorefinery",
abstract = "Mango is the second most consumed tropical fruit after banana and the by-products of mango processing (peel, kernel and seed) roughly comprise 35-60{\%} of the total fruit weight, thus representing a potentially high volume resource of exploitable biobased chemicals and materials. Herein, conversion and characterisation of waste mango peels from three different cultivars (Alphonso, Honey and Tommy Atkins) into pectin and porous cellulose using low temperature microwave-assisted acid-free hydrolytic conditions is reported. Microwave-assisted acid-free extraction yielded up to 11.63{\%} (dry weight basis) of pectin which was characterised by IR, NMR (both solution and solid phase) and TGA which showed close similarity to commercial (acid extracted) pectin. The degree of esterification of pectin was determined by 13C NMR (75.6-86.2{\%}) and titrimetry (79.3-87.7{\%}) and the pectin showed excellent gelling ability. The molecular weight as determined by GPC was in the range 14130 (Honey)-25540 (Tommy Atkins). Porosity measurements on the depectinated residue, i.e., residual cellulosic matter showed mesoporous characteristics: average pore diameter, 9.3 nm (Alphonso)-10.5 nm (Honey), however with poor surface area 16.3 m2 g-1 (Honey)-26.0 m2 g-1. Interestingly, a second microwave hydrothermal treatment on these residues retained mesoporosity whilst significantly increasing surface area (88.8 m2 g-1 (Honey)-124.0 m2 g-1 (Alphonso)) and pore volume by approximately six-fold. This is the first detailed combined study of microwave-assisted extraction to yield pectin and mesoporous cellulose towards a potential zero waste mango biorefinery.",
author = "Matharu, {Avtar S.} and Houghton, {Joseph A.} and Covadonga Lucas-Torres and Andr{\'e}s Moreno",
note = "{\circledC} RSC 2016. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details",
year = "2016",
month = "10",
day = "7",
doi = "10.1039/c6gc01178k",
language = "English",
volume = "18",
pages = "5280--5287",
journal = "Green Chemistry",
issn = "1463-9270",
publisher = "Royal Society of Chemistry",
number = "19",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery

T2 - Towards a Zero Waste Mango Biorefinery

AU - Matharu, Avtar S.

AU - Houghton, Joseph A.

AU - Lucas-Torres, Covadonga

AU - Moreno, Andrés

N1 - © RSC 2016. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

PY - 2016/10/7

Y1 - 2016/10/7

N2 - Mango is the second most consumed tropical fruit after banana and the by-products of mango processing (peel, kernel and seed) roughly comprise 35-60% of the total fruit weight, thus representing a potentially high volume resource of exploitable biobased chemicals and materials. Herein, conversion and characterisation of waste mango peels from three different cultivars (Alphonso, Honey and Tommy Atkins) into pectin and porous cellulose using low temperature microwave-assisted acid-free hydrolytic conditions is reported. Microwave-assisted acid-free extraction yielded up to 11.63% (dry weight basis) of pectin which was characterised by IR, NMR (both solution and solid phase) and TGA which showed close similarity to commercial (acid extracted) pectin. The degree of esterification of pectin was determined by 13C NMR (75.6-86.2%) and titrimetry (79.3-87.7%) and the pectin showed excellent gelling ability. The molecular weight as determined by GPC was in the range 14130 (Honey)-25540 (Tommy Atkins). Porosity measurements on the depectinated residue, i.e., residual cellulosic matter showed mesoporous characteristics: average pore diameter, 9.3 nm (Alphonso)-10.5 nm (Honey), however with poor surface area 16.3 m2 g-1 (Honey)-26.0 m2 g-1. Interestingly, a second microwave hydrothermal treatment on these residues retained mesoporosity whilst significantly increasing surface area (88.8 m2 g-1 (Honey)-124.0 m2 g-1 (Alphonso)) and pore volume by approximately six-fold. This is the first detailed combined study of microwave-assisted extraction to yield pectin and mesoporous cellulose towards a potential zero waste mango biorefinery.

AB - Mango is the second most consumed tropical fruit after banana and the by-products of mango processing (peel, kernel and seed) roughly comprise 35-60% of the total fruit weight, thus representing a potentially high volume resource of exploitable biobased chemicals and materials. Herein, conversion and characterisation of waste mango peels from three different cultivars (Alphonso, Honey and Tommy Atkins) into pectin and porous cellulose using low temperature microwave-assisted acid-free hydrolytic conditions is reported. Microwave-assisted acid-free extraction yielded up to 11.63% (dry weight basis) of pectin which was characterised by IR, NMR (both solution and solid phase) and TGA which showed close similarity to commercial (acid extracted) pectin. The degree of esterification of pectin was determined by 13C NMR (75.6-86.2%) and titrimetry (79.3-87.7%) and the pectin showed excellent gelling ability. The molecular weight as determined by GPC was in the range 14130 (Honey)-25540 (Tommy Atkins). Porosity measurements on the depectinated residue, i.e., residual cellulosic matter showed mesoporous characteristics: average pore diameter, 9.3 nm (Alphonso)-10.5 nm (Honey), however with poor surface area 16.3 m2 g-1 (Honey)-26.0 m2 g-1. Interestingly, a second microwave hydrothermal treatment on these residues retained mesoporosity whilst significantly increasing surface area (88.8 m2 g-1 (Honey)-124.0 m2 g-1 (Alphonso)) and pore volume by approximately six-fold. This is the first detailed combined study of microwave-assisted extraction to yield pectin and mesoporous cellulose towards a potential zero waste mango biorefinery.

UR - http://www.scopus.com/inward/record.url?scp=84989287944&partnerID=8YFLogxK

U2 - 10.1039/c6gc01178k

DO - 10.1039/c6gc01178k

M3 - Article

VL - 18

SP - 5280

EP - 5287

JO - Green Chemistry

JF - Green Chemistry

SN - 1463-9270

IS - 19

ER -