Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes

The predation and burrowing activity of invasive green crabs have had detrimental effects on important marine resources and habitats. Our objective is to develop bioactive hydrolysates by enzymatic proteolysis of underutilized green crab. Mechanically separated mince was hydrolyzed with Alcalase, Pr...

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Main Authors: Bouhee Kang, Denise I. Skonberg, Angela D. Myracle
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/9/3/258
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author Bouhee Kang
Denise I. Skonberg
Angela D. Myracle
author_facet Bouhee Kang
Denise I. Skonberg
Angela D. Myracle
author_sort Bouhee Kang
collection DOAJ
description The predation and burrowing activity of invasive green crabs have had detrimental effects on important marine resources and habitats. Our objective is to develop bioactive hydrolysates by enzymatic proteolysis of underutilized green crab. Mechanically separated mince was hydrolyzed with Alcalase, Protamex, Flavourzyme, and Papain (1%) for 60 min. Subsequently, the hydrolysates were introduced to a simulated gastrointestinal digestion model. Selected samples were fractionated by ultrafiltration, and their anti-hyperglycemic effects including &#945;-glucosidase, &#945;-amylase, and dipeptidyl peptidase-IV (DPP-IV) inhibitory activities and glucagon-like 1 (GLP-1) secretory activity were evaluated. The Protamex treatment showed the highest &#945;-glucosidase inhibitory activity (IC<sub>50</sub> 1.38 &#177; 0.19 mg/mL) compared to other enzyme treatments and the crab mince control, and its &#945;-amylase inhibitory activity (IC<sub>50</sub> 11.02 &#177; 0.69 mg/mL) was lower than its &#945;-glucosidase inhibitory activity. Its GLP-1 secretory activity was approximately four times higher than the positive control (10 mM glutamine). The &lt;3 kD fraction contributed significantly to the anti-hyperglycemic activity of Protamex-derived hydrolysates, and this activity was stable after simulated digestion. Our results suggest that green crab hydrolysates obtained by Protamex treatment have the potential for type 2 diabetes management and could be incorporated in food products as a health-promoting ingredient.
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spelling doaj.art-c8a199a6e3ff41a8a32d605a972a80052022-12-22T00:07:10ZengMDPI AGFoods2304-81582020-02-019325810.3390/foods9030258foods9030258Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available EnzymesBouhee Kang0Denise I. Skonberg1Angela D. Myracle2School of Food and Agriculture, University of Maine, 5735 Hitchner Hall, Orono, ME 04469, USASchool of Food and Agriculture, University of Maine, 5735 Hitchner Hall, Orono, ME 04469, USASchool of Food and Agriculture, University of Maine, 5763 Rogers Hall, Orono, ME 04469, USAThe predation and burrowing activity of invasive green crabs have had detrimental effects on important marine resources and habitats. Our objective is to develop bioactive hydrolysates by enzymatic proteolysis of underutilized green crab. Mechanically separated mince was hydrolyzed with Alcalase, Protamex, Flavourzyme, and Papain (1%) for 60 min. Subsequently, the hydrolysates were introduced to a simulated gastrointestinal digestion model. Selected samples were fractionated by ultrafiltration, and their anti-hyperglycemic effects including &#945;-glucosidase, &#945;-amylase, and dipeptidyl peptidase-IV (DPP-IV) inhibitory activities and glucagon-like 1 (GLP-1) secretory activity were evaluated. The Protamex treatment showed the highest &#945;-glucosidase inhibitory activity (IC<sub>50</sub> 1.38 &#177; 0.19 mg/mL) compared to other enzyme treatments and the crab mince control, and its &#945;-amylase inhibitory activity (IC<sub>50</sub> 11.02 &#177; 0.69 mg/mL) was lower than its &#945;-glucosidase inhibitory activity. Its GLP-1 secretory activity was approximately four times higher than the positive control (10 mM glutamine). The &lt;3 kD fraction contributed significantly to the anti-hyperglycemic activity of Protamex-derived hydrolysates, and this activity was stable after simulated digestion. Our results suggest that green crab hydrolysates obtained by Protamex treatment have the potential for type 2 diabetes management and could be incorporated in food products as a health-promoting ingredient.https://www.mdpi.com/2304-8158/9/3/258green crabprotein hydrolysatesenzymatic hydrolysistype 2 diabetesanti-hyperglycemia
spellingShingle Bouhee Kang
Denise I. Skonberg
Angela D. Myracle
Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
Foods
green crab
protein hydrolysates
enzymatic hydrolysis
type 2 diabetes
anti-hyperglycemia
title Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
title_full Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
title_fullStr Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
title_full_unstemmed Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
title_short Anti-Hyperglycemic Effects of Green Crab Hydrolysates Derived by Commercially Available Enzymes
title_sort anti hyperglycemic effects of green crab hydrolysates derived by commercially available enzymes
topic green crab
protein hydrolysates
enzymatic hydrolysis
type 2 diabetes
anti-hyperglycemia
url https://www.mdpi.com/2304-8158/9/3/258
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AT deniseiskonberg antihyperglycemiceffectsofgreencrabhydrolysatesderivedbycommerciallyavailableenzymes
AT angeladmyracle antihyperglycemiceffectsofgreencrabhydrolysatesderivedbycommerciallyavailableenzymes