Bioactive peptides from Tenebrio molitor: physicochemical and antioxidant properties and antimicrobial capacity

Recent research has demonstrated the increasing interest in using insects for the extraction of bioactive compounds, particularly peptides. These compounds offer a spectrum of beneficial physiological effects. The aim of this study was to standardize a methodology for obtaining bioactive peptides fr...

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Published in:	Anais da Academia Brasileira de Ciências Vol. 96; no. suppl 1; p. e20231375
Main Authors:	Villanova, Jéssica Cristina V, Pretto, Alexandra, Penchel, Evander M, Serra, Sergio Domingos S, Lanes, Carlos Frederico C, Ribeiro, Vanessa B, Speroni, Caroline S, Bender, Ana Betine B, Ferrigolo, Fernanda R G
Format:	Journal Article
Language:	English
Published:	Brazil Academia Brasileira de Ciências 01-01-2024
Subjects:	Animals Anti-Infective Agents - analysis Anti-Infective Agents - chemistry Anti-Infective Agents - pharmacology Antioxidants - analysis Antioxidants - chemistry Antioxidants - pharmacology edible insects enzymatic hydrolysis functional ingredient mealworm Microbial Sensitivity Tests MULTIDISCIPLINARY SCIENCES Peptides - analysis Peptides - chemistry Peptides - isolation & purification Peptides - pharmacology Tenebrio - chemistry mealworm functional ingredient edible insects enzymatic hydrolysis
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Summary:	Recent research has demonstrated the increasing interest in using insects for the extraction of bioactive compounds, particularly peptides. These compounds offer a spectrum of beneficial physiological effects. The aim of this study was to standardize a methodology for obtaining bioactive peptides from Tenebrio molitor and evaluate its physicochemical characterization, antioxidant, and antimicrobial potential. Six assays were carried out to hydrolyse larvae protein, with variations in Alcalase concentration (0.04 to 0.08%) and reaction time (3 to 8 h). The results indicated that the process applied to defatted mealworm flour was effective in reducing lipids by 82.5%. Consequently, it was an observed increase of 38.4% in protein content. Additionally, an increase in glycogen content was found in defatted mealworm flour (177 µmol glucose g-1 sample) and peptides (152.81 µmol glucose g-1 sample). The degree of hydrolysis was higher in assays with longer hydrolysis durations (8.14 - 8.38%). The antioxidant capacity was 12 to 14% lower in assays with an incubation time of 8h. In this sense, the methodology proposed in the present study proved to be efficient in obtaining bioactive peptides from T. molitor.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1678-2690 1678-2690
DOI:	10.1590/0001-3765202320231375