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Biovalorization of mango byproduct through enzymatic extraction of dietary fiber

  • Trends in Environmental and Industrial Biotechnology
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Abstract

Mango is considered one of the most important tropical fruits worldwide in terms of its consumption and consumer acceptability. Its processing generates huge quantities of mango byproducts, which is often discarded unscrupulously into the environment and, therefore, needs effective waste management practices. The extraction of mango peels’ dietary fiber using enzymatic method can be a useful valorization strategy for management of mango by-products. In the present investigation, dietary fiber (soluble and insoluble fraction) was extracted by enzymatic hydrolysis using α-amylase, protease, and amyloglucosidase. Highest yield of dietary fiber (67.5%, w/w) was obtained at 60 °C temperature using recommended enzyme concentrations including α-amylase (40 µL), protease (110 µL), and amyloglucosidase (200 µL) after a treatment time of 60 min. SEM analysis indicated the increased porosity of dietary fiber samples caused due to the hydrolytic effect of enzymes on its surface structure, whereas FTIR analysis confirmed the functional groups present in dietary fiber. The coexistence of crystalline and amorphous nature of polymers present in soluble and insoluble fractions of dietary fiber was assessed by XRD analysis. Further, the analysis of functional properties including WHC, OHC, and SC revealed the suitability of using extracted mango peel’s dietary fiber in the food systems.

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Acknowledgements

The infrastructural support provided by Sant Longowal Institute of Engineering and Technology (SLIET), for carrying out the research is acknowledged.

Funding

The research project was funded by ASEAN India Science & Technology Development Fund (AISTDF), Science & Engineering Research Board, Department of Science & Technology (SERB-DST) under Grant No. CRD/2019/000141.

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All authors contributed to the study conception and design. Investigation, methodology, writing- original draft, and formal analysis were done by BK. Conceptualization, writing — review and editing, supervision, and project administration were done by PSP. Interpretation of data and cosupervision of the investigation were done by AT. All authors read and approved the final manuscript.

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Correspondence to Parmjit Singh Panesar.

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Responsible Editor: Ta Yeong Wu

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Kaur, B., Panesar, P.S. & Thakur, A. Biovalorization of mango byproduct through enzymatic extraction of dietary fiber. Environ Sci Pollut Res (2023). https://doi.org/10.1007/s11356-023-31450-3

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  • DOI: https://doi.org/10.1007/s11356-023-31450-3

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