Determination of nutritional values of mealworm (Tenebrio molitor L.) larvae fed with turmeric (novel food product)

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dc.contributor.authorBala, Deniz Aktaran
dc.contributor.authorAltunatmaz, Sema Sandikci
dc.contributor.authorAksu, Filiz
dc.contributor.authorDogan, Cansu Celik
dc.contributor.authorAkyazi, Ibrahim
dc.contributor.authorAltiner, Dilek Dulger
dc.contributor.authorAhmed, Isam A. Mohamed
dc.date.accessioned2026-07-01T11:39:26Z
dc.date.available2026-07-01T11:39:26Z
dc.date.issued2026
dc.departmentDüzce Üniversitesi
dc.description.abstractThis study evaluated the nutritional and functional potential of powder obtained from mealworm (Tenebrio molitor L.) larvae fed turmeric (Curcuma longa) for human consumption. Proximate composition, phenolic fractions (free/bound/total), antioxidant capacity, and bioavailability after in-vitro digestion were examined in control (Tm-C) and turmeric-fed group (Tm-T) samples. Phenolics were reported as mg GAE/100 g using the Folin-Ciocalteu method, antioxidant activities were reported as mu mol Trolox/g using ABTS center dot+, CUPRAC, and DPPH center dot tests; bioavailability was calculated using a two-phase digestion model including pepsin and pancreatin/bile. In the Tm-T group, moisture was 61.77%, protein 24.04%, and fat 6.84%, while in the Tm-C group, these percentages were 64.38, 21.61, and 9.04%, respectively. The dominant fraction of phenolic compounds was bound phenolics, ranging from 623.97-830.73 mg GAE/100 g, while free phenolics ranged from 106.25-157.35 mg GAE/100 g. After in vitro digestion, bioavailable phenolics increased to 801.47 mg GAE/100 g in Tm-T, exceeding the 637.76 mg GAE/100 g value in Tm-C. Antioxidant bioavailability was determined as 49.41 mu mol Trolox/g in Tm-T and 41.76 mu mol Trolox/g in Tm-C using the ABTS method. In the amino acid profile, the mean of the total amount of essential amino acids was 5.99 g/100 g, with lysine (1.25 g/100 g) and leucine (1.38 g/100 g) being prominent. Amino acids were determined by LC-MS/MS and the essential profile was found to be balanced. Consequently, turmeric-supplemented feeding improves the protein quality of larval powder and the phenolic/antioxidant potential released during digestion, supporting the use of edible insects as carriers of functional components in terms of food innovation.
dc.identifier.doi10.3389/fnut.2026.1812226
dc.identifier.issn2296-861X
dc.identifier.orcid0000-0001-8694-0658
dc.identifier.pmid42058707
dc.identifier.scopus2-s2.0-105041522244
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://doi.org/10.3389/fnut.2026.1812226
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23280
dc.identifier.volume13
dc.identifier.wosWOS:001751027300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherFrontiers Media Sa
dc.relation.ispartofFrontiers in Nutrition
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260623
dc.subject[Keyword Not Available]
dc.titleDetermination of nutritional values of mealworm (Tenebrio molitor L.) larvae fed with turmeric (novel food product)
dc.typeArticle

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