Jaqueline Auer , Hanna Eriksson Röhnisch , Sarah Heupl , Marina Marinea , Mathias Johansson , Marie Alminger , Galia Zamaratskaia , Anders Högberg , Maud Langton
{"title":"转谷氨酰胺酶和超声预处理对豌豆蛋白乳凝胶结构和消化率的影响","authors":"Jaqueline Auer , Hanna Eriksson Röhnisch , Sarah Heupl , Marina Marinea , Mathias Johansson , Marie Alminger , Galia Zamaratskaia , Anders Högberg , Maud Langton","doi":"10.1016/j.foodhyd.2025.111620","DOIUrl":null,"url":null,"abstract":"<div><div>This study examines the effects of ultrasound and transglutaminase pre-treatments on the structure, rheological properties, and digestibility of emulsion gels made from pea protein isolate and concentrate. Pre-treatments enhanced the elasticity and deformation resistance of gels made from pea protein isolate, with the combination of both treatments yielding the highest storage modulus. In contrast, emulsion gels from pea protein concentrate showed a more complex response, with untreated samples exhibiting higher storage modulus. These differences reflect variations in gelation behaviour between isolates and concentrates, likely due to differences in composition and extraction processes. Protein digestibility, assessed using the o-phthalaldehyde assay, showed significant differences between pre-treatments, but the impact was less pronounced compared to the difference between gels made from isolate and concentrate. Gels made from pea protein isolate had a hydrolysis degree of 77 %, while those from pea protein concentrate had 48 %, with this difference mainly attributed to the higher amounts of starch and fiber in the concentrate, which affected both the gel structure and digestibility. Nuclear magnetic resonance-based metabolomics revealed lower glucose release in transglutaminase-treated gels made from pea protein concentrate and lower glycine release from ultrasound and transglutaminase-treated gels made from pea protein isolate during gastric digestion. However, no significant differences were observed after intestinal digestion, indicating no major limitations in nutrient release due to processing. Overall, these findings highlight the role of protein source and processing methods in influencing rheological properties and nutrient bioavailability in protein systems.</div></div>","PeriodicalId":320,"journal":{"name":"Food Hydrocolloids","volume":"169 ","pages":"Article 111620"},"PeriodicalIF":11.0000,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effect of transglutaminase and ultrasound pre-treatment on the structure and digestibility of pea protein emulsion gels\",\"authors\":\"Jaqueline Auer , Hanna Eriksson Röhnisch , Sarah Heupl , Marina Marinea , Mathias Johansson , Marie Alminger , Galia Zamaratskaia , Anders Högberg , Maud Langton\",\"doi\":\"10.1016/j.foodhyd.2025.111620\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study examines the effects of ultrasound and transglutaminase pre-treatments on the structure, rheological properties, and digestibility of emulsion gels made from pea protein isolate and concentrate. Pre-treatments enhanced the elasticity and deformation resistance of gels made from pea protein isolate, with the combination of both treatments yielding the highest storage modulus. In contrast, emulsion gels from pea protein concentrate showed a more complex response, with untreated samples exhibiting higher storage modulus. These differences reflect variations in gelation behaviour between isolates and concentrates, likely due to differences in composition and extraction processes. Protein digestibility, assessed using the o-phthalaldehyde assay, showed significant differences between pre-treatments, but the impact was less pronounced compared to the difference between gels made from isolate and concentrate. Gels made from pea protein isolate had a hydrolysis degree of 77 %, while those from pea protein concentrate had 48 %, with this difference mainly attributed to the higher amounts of starch and fiber in the concentrate, which affected both the gel structure and digestibility. Nuclear magnetic resonance-based metabolomics revealed lower glucose release in transglutaminase-treated gels made from pea protein concentrate and lower glycine release from ultrasound and transglutaminase-treated gels made from pea protein isolate during gastric digestion. However, no significant differences were observed after intestinal digestion, indicating no major limitations in nutrient release due to processing. Overall, these findings highlight the role of protein source and processing methods in influencing rheological properties and nutrient bioavailability in protein systems.</div></div>\",\"PeriodicalId\":320,\"journal\":{\"name\":\"Food Hydrocolloids\",\"volume\":\"169 \",\"pages\":\"Article 111620\"},\"PeriodicalIF\":11.0000,\"publicationDate\":\"2025-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Food Hydrocolloids\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0268005X25005806\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Hydrocolloids","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0268005X25005806","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
The effect of transglutaminase and ultrasound pre-treatment on the structure and digestibility of pea protein emulsion gels
This study examines the effects of ultrasound and transglutaminase pre-treatments on the structure, rheological properties, and digestibility of emulsion gels made from pea protein isolate and concentrate. Pre-treatments enhanced the elasticity and deformation resistance of gels made from pea protein isolate, with the combination of both treatments yielding the highest storage modulus. In contrast, emulsion gels from pea protein concentrate showed a more complex response, with untreated samples exhibiting higher storage modulus. These differences reflect variations in gelation behaviour between isolates and concentrates, likely due to differences in composition and extraction processes. Protein digestibility, assessed using the o-phthalaldehyde assay, showed significant differences between pre-treatments, but the impact was less pronounced compared to the difference between gels made from isolate and concentrate. Gels made from pea protein isolate had a hydrolysis degree of 77 %, while those from pea protein concentrate had 48 %, with this difference mainly attributed to the higher amounts of starch and fiber in the concentrate, which affected both the gel structure and digestibility. Nuclear magnetic resonance-based metabolomics revealed lower glucose release in transglutaminase-treated gels made from pea protein concentrate and lower glycine release from ultrasound and transglutaminase-treated gels made from pea protein isolate during gastric digestion. However, no significant differences were observed after intestinal digestion, indicating no major limitations in nutrient release due to processing. Overall, these findings highlight the role of protein source and processing methods in influencing rheological properties and nutrient bioavailability in protein systems.
期刊介绍:
Food Hydrocolloids publishes original and innovative research focused on the characterization, functional properties, and applications of hydrocolloid materials used in food products. These hydrocolloids, defined as polysaccharides and proteins of commercial importance, are added to control aspects such as texture, stability, rheology, and sensory properties. The research's primary emphasis should be on the hydrocolloids themselves, with thorough descriptions of their source, nature, and physicochemical characteristics. Manuscripts are expected to clearly outline specific aims and objectives, include a fundamental discussion of research findings at the molecular level, and address the significance of the results. Studies on hydrocolloids in complex formulations should concentrate on their overall properties and mechanisms of action, while simple formulation development studies may not be considered for publication.
The main areas of interest are:
-Chemical and physicochemical characterisation
Thermal properties including glass transitions and conformational changes-
Rheological properties including viscosity, viscoelastic properties and gelation behaviour-
The influence on organoleptic properties-
Interfacial properties including stabilisation of dispersions, emulsions and foams-
Film forming properties with application to edible films and active packaging-
Encapsulation and controlled release of active compounds-
The influence on health including their role as dietary fibre-
Manipulation of hydrocolloid structure and functionality through chemical, biochemical and physical processes-
New hydrocolloids and hydrocolloid sources of commercial potential.
The Journal also publishes Review articles that provide an overview of the latest developments in topics of specific interest to researchers in this field of activity.