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Bromelain extraction using single stage nanofiltration membrane process

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Abstract

Pineapple (Ananas Comosus) is a tropical fruit having exceptional juiciness, vibrant tropical flavor and immense health benefits. Pineapples are not only taken fresh but they have been commercialized in the canning industry. Morris cultivar is mostly supplied to the canning industry where only the flesh is utilized and the rest of the pineapple (50 wt%) such as the core, stem, peels and crown are discarded as wastes. In the extraction of bromelain which is a vital proteolytic enzyme the whole pineapple including its peels, core, stem and crown can be utilized. This enzyme is very valuable and considered as a food supplement with a wide range of therapeutic benefits. Thus, in this study, bromelain is extracted from the flesh, crown, stem, core and peel of pineapples using simple one stage hollow fiber nanofiltration membrane process. The different parts of the pineapple were crushed to extract the juice. The juice was then centrifuged and the supernatant was then passed through a nanofiltration membrane. Results revealed the retentates from the different pineapple parts contain high amounts of bromelain in descending order flesh > peel > core > crown > stem. The amount of bromelain activity increased after every process especially after freeze drying.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Abbreviations

BaCl2 :

Barium chloride

DNS:

3,5-Dinitrosalicylic acid

EDTA:

Ethylene diamine tetra acetic acid

HCl:

Hydrochloric acid

HNO3 :

Nitric acid

I2 :

Iodine

KI:

Potassium iodide

MD:

Maltodextrin

Na2HPO4 :

Anhydrous disodium phosphate

Na2O2 :

Sodium peroxide

NaOH:

Sodium hydroxide

PEG:

Polyethylene glycol

PES:

Polyether sulfone

TCA:

Trichloroacetic acid

ATPS:

Aqueous two-phase system

HF NF:

Hollow fiber nanofiltration

MWCO:

Molecular weight cut-off

TSS:

Total soluble solid

UV:

Ultra violet

Vis:

Visible

CDU:

Casein digestion unit

References

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Funding

This work was supported by Malaysian Pineapple Industry Board (MPIB) and UTM for grant research R.J130000.7646.4C152 “Extraction of Bromelain from Pineapple Pulp and Fruit using Membrane Filtration”.

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Authors and Affiliations

Authors

Contributions

EM: Collection of data, chemical analysis, manuscript writing. AI: Conceive the idea, overall guidance, statistical analysis, conducting experiment, manuscript writing. HY: Statistical analysis, manuscript writing.

Corresponding author

Correspondence to Ani Idris.

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The authors declare that they have no competing interests.

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Appendix

Appendix

See Figs. 6, 7, 8, 9, 10, 11 and see Tables 2, 3, 4.

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Misran, E., Idris, A. & Ya’akob, H. Bromelain extraction using single stage nanofiltration membrane process. J Food Sci Technol 60, 315–327 (2023). https://doi.org/10.1007/s13197-022-05618-7

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  • DOI: https://doi.org/10.1007/s13197-022-05618-7

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