Affiliation:
1. National Engineering Research Center of Seafood, College of Food Science and Technology Dalian Polytechnic University Dalian China
2. College of Biosystems Engineering and Food Science, National‐Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro‐Food Processing, Zhejiang R&D Center for Food Technology and Equipment Zhejiang University Hangzhou China
3. Fuli Institute of Food Science, Ningbo Research Institute Zhejiang University Hangzhou China
4. Innovation Center of Yangtze River Delta Zhejiang University Hangzhou China
Abstract
AbstractBACKGROUNDEpigallocatechin‐3‐gallate (EGCG) is well known for excellent chain‐breaking antioxidant capability. However, browning by oxidation and aggregation of EGCG is a non‐negligible defect that hinders its applications as an antioxidant in various foodstuffs. Therefore, how to eliminate or mitigate browning efficiently, while retaining functionalities as food additive is a challenge in the food industry.RESULTSOur results demonstrated that EGCG could be anchored within the internal cavity of γ‐cyclodextrin (γ‐CD) to form an inclusion structure, where hydrophobic interaction, hydrogen bonding, and π‐stacking were identified to be the primary drivers. The interplay between two molecules and the steric hindrance from γ‐CD could restrict the motion and aggregation of EGCG efficiently, thus alleviating the browning effect. In addition, the conformational adaption of EGCG within the inclusions would result in general decreases in hydrogen‐bond dissociation enthalpies for the pyrogallol‐type structure on the b ring, thus enhancing the antioxidant capability. In practical application, the nanoscale γ‐CD/EGCG inclusion complexes were validated preliminarily as efficient additives in the preservation of shrimp surimi, presenting significant effects on prolonging the shelf‐life of products.CONCLUSIONHere, nanoscale γ‐CD/EGCG inclusion complexes as alternatives to EGCG were tailored as food antioxidants for the preservation of shrimp surimi products, exerting antioxidant effects while mitigating the browning effects of EGCG on products. Through self‐assembly, EGCG would be anchored with the cavity of γ‐CD, which could regulate the release modes and restrict the aggregation of EGCG. This facile strategy has great potential in food preservation. © 2023 Society of Chemical Industry.
Subject
Nutrition and Dietetics,Agronomy and Crop Science,Food Science,Biotechnology
Reference53 articles.
1. Fact.MR.Surimi market: Surimi market to witness a proliferating rise in demand for processed surimi during 2021–2031.https://www.factmr.com/report/5014/surimi-market.
2. Full Utilization of Squid Meat and Its Processing By-products: Revisit
3. The process of heat-induced gelation in Litopenaeus vannamei
4. The relationship between water activity and fish spoilage during cold storage: a review;Abbas K;J Food Agric Environ,2009