Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae

A comparative characterization of proteins from three edible insects&#8212;<i>Tenebrio molitor</i> (mealworm) larvae, <i>Gryllus bimaculatus</i> (cricket), and <i>Bombyx mori</i> (silkworm) pupae&#8212;was performed in this study. Proteins were extracted f...

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Main Authors: Sungwon Yoon, Nathan A. K. Wong, Minki Chae, Joong-Hyuck Auh
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/8/11/563
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author Sungwon Yoon
Nathan A. K. Wong
Minki Chae
Joong-Hyuck Auh
author_facet Sungwon Yoon
Nathan A. K. Wong
Minki Chae
Joong-Hyuck Auh
author_sort Sungwon Yoon
collection DOAJ
description A comparative characterization of proteins from three edible insects&#8212;<i>Tenebrio molitor</i> (mealworm) larvae, <i>Gryllus bimaculatus</i> (cricket), and <i>Bombyx mori</i> (silkworm) pupae&#8212;was performed in this study. Proteins were extracted from edible insects and their hydrolysates were prepared through enzymatic hydrolysis with commercial enzymes (Flavourzyme: 12%; Alcalase: 3%). Solubility was significantly higher following enzymatic hydrolysis, while foamability was lower compared to those of the protein control. Angiotensin-converting enzyme was significantly inhibited after enzymatic hydrolysis, especially following Alcalase treatment, with IC<sub>50</sub> values of 0.047, 0.066, and 0.065 mg/mL for <i>G. bimaculatus</i>, <i>T. molitor</i> larvae, and <i>B. mori</i> pupae, respectively. Moreover, the Alcalase-treated group of <i>B. mori</i> pupae and the <i>T. molitor</i> larvae group treated with a mixture of enzymes showed the effective inhibition of &#945;-glucosidase activity. The anti-inflammatory activity of the insect hydrolysates was assessed via nitric oxide production from macrophages, and <i>B. mori</i> pupae samples exhibited significant activity regardless of the method of hydrolysis. These results indicate the functional properties of protein and hydrolysates from three species of edible insects, which may be useful in their future exploitation.
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spelling doaj.art-38cac1e0fb8744f79956f188fcd539b22022-12-22T01:54:07ZengMDPI AGFoods2304-81582019-11-0181156310.3390/foods8110563foods8110563Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm PupaeSungwon Yoon0Nathan A. K. Wong1Minki Chae2Joong-Hyuck Auh3Department of Food Science and Technology, Chung-Ang University, Anseong 17546, KoreaDepartment of Food Science and Technology, Chung-Ang University, Anseong 17546, KoreaDepartment of Food Science and Technology, Chung-Ang University, Anseong 17546, KoreaDepartment of Food Science and Technology, Chung-Ang University, Anseong 17546, KoreaA comparative characterization of proteins from three edible insects&#8212;<i>Tenebrio molitor</i> (mealworm) larvae, <i>Gryllus bimaculatus</i> (cricket), and <i>Bombyx mori</i> (silkworm) pupae&#8212;was performed in this study. Proteins were extracted from edible insects and their hydrolysates were prepared through enzymatic hydrolysis with commercial enzymes (Flavourzyme: 12%; Alcalase: 3%). Solubility was significantly higher following enzymatic hydrolysis, while foamability was lower compared to those of the protein control. Angiotensin-converting enzyme was significantly inhibited after enzymatic hydrolysis, especially following Alcalase treatment, with IC<sub>50</sub> values of 0.047, 0.066, and 0.065 mg/mL for <i>G. bimaculatus</i>, <i>T. molitor</i> larvae, and <i>B. mori</i> pupae, respectively. Moreover, the Alcalase-treated group of <i>B. mori</i> pupae and the <i>T. molitor</i> larvae group treated with a mixture of enzymes showed the effective inhibition of &#945;-glucosidase activity. The anti-inflammatory activity of the insect hydrolysates was assessed via nitric oxide production from macrophages, and <i>B. mori</i> pupae samples exhibited significant activity regardless of the method of hydrolysis. These results indicate the functional properties of protein and hydrolysates from three species of edible insects, which may be useful in their future exploitation.https://www.mdpi.com/2304-8158/8/11/563protein hydrolysatesmealwormcricketsilkworm pupae
spellingShingle Sungwon Yoon
Nathan A. K. Wong
Minki Chae
Joong-Hyuck Auh
Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
Foods
protein hydrolysates
mealworm
cricket
silkworm pupae
title Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
title_full Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
title_fullStr Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
title_full_unstemmed Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
title_short Comparative Characterization of Protein Hydrolysates from Three Edible Insects: Mealworm Larvae, Adult Crickets, and Silkworm Pupae
title_sort comparative characterization of protein hydrolysates from three edible insects mealworm larvae adult crickets and silkworm pupae
topic protein hydrolysates
mealworm
cricket
silkworm pupae
url https://www.mdpi.com/2304-8158/8/11/563
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AT nathanakwong comparativecharacterizationofproteinhydrolysatesfromthreeedibleinsectsmealwormlarvaeadultcricketsandsilkwormpupae
AT minkichae comparativecharacterizationofproteinhydrolysatesfromthreeedibleinsectsmealwormlarvaeadultcricketsandsilkwormpupae
AT joonghyuckauh comparativecharacterizationofproteinhydrolysatesfromthreeedibleinsectsmealwormlarvaeadultcricketsandsilkwormpupae