Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>

Lately, additional attention is being placed on edible insects, since they constitute an excellent, cost-efficient source of proteins with a low ecological footprint. <i>Tenebrio molitor</i> was the first insect that was considered edible by EFSA in 2021. This species can replace convent...

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Main Authors: Konstantina Kotsou, Theodoros Chatzimitakos, Vassilis Athanasiadis, Eleni Bozinou, Christina Adamaki-Sotiraki, Christos I. Rumbos, Christos G. Athanassiou, Stavros I. Lalas
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/4/783
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author Konstantina Kotsou
Theodoros Chatzimitakos
Vassilis Athanasiadis
Eleni Bozinou
Christina Adamaki-Sotiraki
Christos I. Rumbos
Christos G. Athanassiou
Stavros I. Lalas
author_facet Konstantina Kotsou
Theodoros Chatzimitakos
Vassilis Athanasiadis
Eleni Bozinou
Christina Adamaki-Sotiraki
Christos I. Rumbos
Christos G. Athanassiou
Stavros I. Lalas
author_sort Konstantina Kotsou
collection DOAJ
description Lately, additional attention is being placed on edible insects, since they constitute an excellent, cost-efficient source of proteins with a low ecological footprint. <i>Tenebrio molitor</i> was the first insect that was considered edible by EFSA in 2021. This species can replace conventional protein sources and thus, it has the potential to be used in many different food products. In the present study, a food by-product that is commonly produced (i.e., albedo orange peel waste) was used as a feed additive for <i>T. molitor</i> larvae, in an effort to further improve the circular economy and enhance the nutritional value of the insects. To this end, bran, which is commonly used as feed for <i>T. molitor</i> larvae, was fortified with the albedo orange peel waste (up to 25% <i>w</i>/<i>w</i>). Larval performance, in terms of larval survival and growth, as well as the larval nutritional value, i.e., the content of protein, fat, carbohydrates, ash, carotenoids, vitamins A and C, and polyphenols, was evaluated. Based on the results, the increase in the percentage of orange peel albedos in <i>T. molitor</i> feed resulted in a subsequent increase in the content of larvae in carotenoids and vitamin A up to 198%, in vitamin C up to 46%, and an increase in the protein and ash content up to 32% and 26.5%, respectively. Therefore, the use of albedo orange peel waste for feeding of <i>T. molitor</i> larvae is highly recommended, since it results in larvae with enhanced nutritional value and at the same time, the utilization of this feeding substrate further lowers the cost of insect farming.
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spelling doaj.art-7fc046112a1642d295ac48783744f0e22023-11-16T20:30:28ZengMDPI AGFoods2304-81582023-02-0112478310.3390/foods12040783Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>Konstantina Kotsou0Theodoros Chatzimitakos1Vassilis Athanasiadis2Eleni Bozinou3Christina Adamaki-Sotiraki4Christos I. Rumbos5Christos G. Athanassiou6Stavros I. Lalas7Department of Food Science and Nutrition, University of Thessaly, Terma N. Temponera Str., 43100 Karditsa, GreeceDepartment of Food Science and Nutrition, University of Thessaly, Terma N. Temponera Str., 43100 Karditsa, GreeceDepartment of Food Science and Nutrition, University of Thessaly, Terma N. Temponera Str., 43100 Karditsa, GreeceDepartment of Food Science and Nutrition, University of Thessaly, Terma N. Temponera Str., 43100 Karditsa, GreeceLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Phytokou Str., 38446 Volos, GreeceLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Phytokou Str., 38446 Volos, GreeceLaboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Phytokou Str., 38446 Volos, GreeceDepartment of Food Science and Nutrition, University of Thessaly, Terma N. Temponera Str., 43100 Karditsa, GreeceLately, additional attention is being placed on edible insects, since they constitute an excellent, cost-efficient source of proteins with a low ecological footprint. <i>Tenebrio molitor</i> was the first insect that was considered edible by EFSA in 2021. This species can replace conventional protein sources and thus, it has the potential to be used in many different food products. In the present study, a food by-product that is commonly produced (i.e., albedo orange peel waste) was used as a feed additive for <i>T. molitor</i> larvae, in an effort to further improve the circular economy and enhance the nutritional value of the insects. To this end, bran, which is commonly used as feed for <i>T. molitor</i> larvae, was fortified with the albedo orange peel waste (up to 25% <i>w</i>/<i>w</i>). Larval performance, in terms of larval survival and growth, as well as the larval nutritional value, i.e., the content of protein, fat, carbohydrates, ash, carotenoids, vitamins A and C, and polyphenols, was evaluated. Based on the results, the increase in the percentage of orange peel albedos in <i>T. molitor</i> feed resulted in a subsequent increase in the content of larvae in carotenoids and vitamin A up to 198%, in vitamin C up to 46%, and an increase in the protein and ash content up to 32% and 26.5%, respectively. Therefore, the use of albedo orange peel waste for feeding of <i>T. molitor</i> larvae is highly recommended, since it results in larvae with enhanced nutritional value and at the same time, the utilization of this feeding substrate further lowers the cost of insect farming.https://www.mdpi.com/2304-8158/12/4/783edible insects<i>Tenebrio molitor</i>orange albedoproximate compositioncarotenoidsvitamin A
spellingShingle Konstantina Kotsou
Theodoros Chatzimitakos
Vassilis Athanasiadis
Eleni Bozinou
Christina Adamaki-Sotiraki
Christos I. Rumbos
Christos G. Athanassiou
Stavros I. Lalas
Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
Foods
edible insects
<i>Tenebrio molitor</i>
orange albedo
proximate composition
carotenoids
vitamin A
title Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
title_full Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
title_fullStr Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
title_full_unstemmed Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
title_short Waste Orange Peels as a Feed Additive for the Enhancement of the Nutritional Value of <i>Tenebrio molitor</i>
title_sort waste orange peels as a feed additive for the enhancement of the nutritional value of i tenebrio molitor i
topic edible insects
<i>Tenebrio molitor</i>
orange albedo
proximate composition
carotenoids
vitamin A
url https://www.mdpi.com/2304-8158/12/4/783
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