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Abstract

Mango (Mangifera indica L.) seed comprises seed kernel (MSK) and husk (MSH) with compositions suitable for the production of multiple high-value products in integrated biorefineries. The integrated biorefineries consisting of unique combinations of sequential fractionation processes including extractions with organic solvents, hydrolysis using enzymes, and pretreatment under mild alkaline (AP) conditions enable the extraction of polyphenols, polysaccharides including starch, and hemicelluloses containing bioactive compounds, from the MSK in high yields and purity. Additional sequential combinations of AP, high shear homogenization, and organosolv produce mixed hemicellulose (xylan and xyloglucan)-, lignin-, and cellulose-rich residues with properties for cellulose nanocrystals (CNC) production, from MSH. The efficiency of the integrated biorefineries depends on the strategic selection of the process parameters and the optimization of these for high selectivity of a specific product at each step. Therefore, the desirable end-use attributes of the products being extracted and of the residues including yields, purity, and functionality are preserved and maximized at each step. The described integrated biorefineries would lead to the most efficient and effective utilization of both the MSK and MSH, which can increase the economic returns and environmental benefits. However, full economic and environmental impact assessments are necessary for full implementation and scaling up.

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Abbreviations

AA:

Antioxidant activity

AP:

Alkaline pretreatment

ASCN:

Acetic acid nanocellulose

CNC:

Cellulose nanocrystals

CNF:

Cellulose nanofibrils

Crl:

Crystallinity index

EH:

Enzymatic hydrolysis

FCNP:

Spherical formic acid nanocellulose

HPLC:

High-performance liquid chromatography

HSCN:

Homogenized acetic acid nanocellulose

HSHO:

High shear homogenization-assisted organosolv

MCC:

Microcrystalline cellulose

MCDA:

Multi-criteria decision approach

MSH:

Mango seed husks

MSK:

Mango seed kernels

Mw :

Molecular weight

OE:

Organosolv extraction

SCNP:

Sulfuric acid nanocellulose

TPC:

Total polyphenol content

XGN:

Xyloglucan

XLN:

Xylan

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Correspondence to Annie Chimphango .

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Bello, F., Chimphango, A. (2023). A Novel Mango (Mangifera indica L.) Seed Waste-Based Biorefinery Scheme. In: Pathak, P.D., Mandavgane, S.A. (eds) Biorefinery: A Sustainable Approach for the Production of Biomaterials, Biochemicals and Biofuels. Springer, Singapore. https://doi.org/10.1007/978-981-19-7481-6_12

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