Volume 59, Issue 4 p. 2318-2326
Original article

Physico-chemical characteristics of flours obtained from raw, roasted and autoclaved Cucurbita, Passiflora and Annona seeds

Luis Artica Mallqui

Luis Artica Mallqui

Facultad de Ingeniería en Industrias Alimentarias, Universidad Nacional del Centro, Pje Borges 094, Urb Gonzales, El Tambo, Huancayo, Peru

Contribution: Conceptualization (equal), Formal analysis (equal), ​Investigation (equal), Methodology (equal), Writing - original draft (equal)

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Mery Baquerizo Canchumanya

Mery Baquerizo Canchumanya

Facultad de Ciencias Aplicadas, Universidad Nacional del Centro, Pje Borges 094, Urb Gonzales, El Tambo, Huancayo, Peru

Contribution: Formal analysis (equal), ​Investigation (equal), Methodology (equal), Writing - review & editing (equal)

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Hermes Rosales Papa

Hermes Rosales Papa

Facultad de Ingeniería en Industrias Alimentarias, Universidad Nacional del Centro, Pje Borges 094, Urb Gonzales, El Tambo, Huancayo, Peru

Contribution: Formal analysis (equal), ​Investigation (equal), Methodology (equal), Writing - review & editing (equal)

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Gilbert Rodríguez

Corresponding Author

Gilbert Rodríguez

Facultad de Ingeniería, Universidad Nacional del Santa, Urb. Bellamar s/n, Chimbote, Peru

Correspondent: E-mail: [email protected]

Contribution: Supervision (equal), Writing - review & editing (equal)

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Elza Aguirre

Elza Aguirre

Facultad de Ingeniería, Universidad Nacional del Santa, Urb. Bellamar s/n, Chimbote, Peru

Contribution: Supervision (equal), Writing - review & editing (equal)

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Alyssa Hidalgo

Alyssa Hidalgo

Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, via Celoria 2, 20133 Milan, Italy

Contribution: Project administration (equal), Supervision (equal), Writing - review & editing (equal)

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First published: 26 February 2024

Summary

Fruit seeds often have interesting nutritional characteristics as well as antinutrients, which may be inactivated by thermal processes. The aim of this work was to study the characteristics of flours obtained from raw, roasted or autoclaved (121 °C, 10 min) seeds of Cucurbita maxima, Cucurbita ficifolia, Passiflora ligularis, Annona cherimola and Annona muricata by analysing their chemical composition, protein in vitro digestibility, content of antinutrients (tannins, phytates and oxalates) and functional properties. All the flours presented high protein (15.3–36.7 g/100 g) and fat (22.7–41.8 g/100 g) contents. Roasting and autoclaving increased in vitro protein digestibility (from 45.6% to 57.8% and 72.1%, respectively) and decreased antinutrient content (from 100.3 to 75.6 and 82.0 mg tannins/100 g; from 158.1 to 137.8 and 104.0 mg phytates/100 g; from 19.6 to 12.8 and 13.3 mg oxalates/100 g, respectively). Water and oil absorption capacities increased, while emulsion and foaming capacities as well as bulk density decreased during thermal processing. The flours from autoclaved seeds showed improved nutritional and functional characteristics and could be considered as functional food ingredients for direct human consumption and/or in food mixtures. Future studies should be performed to evaluate the presence of allergens and other possible risk factors.

Conflict of interest

The authors declare no competing interests.

Peer review

The peer review history for this article is available at https://www.webofscience.com/api/gateway/wos/peer-review/10.1111/ijfs.16959.

Data availability statement

Not applicable.