Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability

Fish oils are important substances in the field of food and drug delivery. Due to their unstable double bonds, fishy taste, and poor water solubility, it is pivotal to investigate novel dosage forms for fish oils, such as encapsulated droplets. In this work, we primarily prepared gelatin-stabilized...

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Main Authors: Mengzhen Ding, Ting Zhang, Huan Zhang, Ningping Tao, Xichang Wang, Jian Zhong
Format: Article
Language:English
Published: Tsinghua University Press 2020-12-01
Series:Food Science and Human Wellness
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Online Access:http://www.sciencedirect.com/science/article/pii/S2213453020301361
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author Mengzhen Ding
Ting Zhang
Huan Zhang
Ningping Tao
Xichang Wang
Jian Zhong
author_facet Mengzhen Ding
Ting Zhang
Huan Zhang
Ningping Tao
Xichang Wang
Jian Zhong
author_sort Mengzhen Ding
collection DOAJ
description Fish oils are important substances in the field of food and drug delivery. Due to their unstable double bonds, fishy taste, and poor water solubility, it is pivotal to investigate novel dosage forms for fish oils, such as encapsulated droplets. In this work, we primarily prepared gelatin-stabilized fish oil-loaded traditional emulsions and investigated their emulsion forms, droplets, and storage stability under different preparation and storage conditions. Our results showed that higher gelatin solution pH, higher storage temperature in the range of 4–37 °C, and increased storage time induced the emulsion form switch from a liquid form to a redispersible gel form of the fish oil emulsion. The droplets had core-shell microstructures and a trimodal size distribution, which decreases linearly with increasing gelatin solution pH and homogenizing time, but decreases exponentially with increasing homogenizing speed. In addition, storage temperature showed a notably different effect on traditional emulsion storage. This work provides a fundamental knowledge for the formation, microstructure, and properties of gelatin-based traditional emulsions. It also provides a promising new application for fish oil-loaded emulsions in food beverages, soft candy, and other food products.
format Article
id doaj-art-76fd1b53056540aea3cde29f1a4e12d4
institution Kabale University
issn 2213-4530
language English
publishDate 2020-12-01
publisher Tsinghua University Press
record_format Article
series Food Science and Human Wellness
spelling doaj-art-76fd1b53056540aea3cde29f1a4e12d42025-02-03T04:07:04ZengTsinghua University PressFood Science and Human Wellness2213-45302020-12-0194320327Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stabilityMengzhen Ding0Ting Zhang1Huan Zhang2Ningping Tao3Xichang Wang4Jian Zhong5National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, ChinaNational R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, ChinaIowa State University, Ames Laboratory, Ames, IA 50011, USANational R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, ChinaNational R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, ChinaNational R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Integrated Scientific Research Base on Comprehensive Utilization Technology for By-Products of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China; Corresponding author.Fish oils are important substances in the field of food and drug delivery. Due to their unstable double bonds, fishy taste, and poor water solubility, it is pivotal to investigate novel dosage forms for fish oils, such as encapsulated droplets. In this work, we primarily prepared gelatin-stabilized fish oil-loaded traditional emulsions and investigated their emulsion forms, droplets, and storage stability under different preparation and storage conditions. Our results showed that higher gelatin solution pH, higher storage temperature in the range of 4–37 °C, and increased storage time induced the emulsion form switch from a liquid form to a redispersible gel form of the fish oil emulsion. The droplets had core-shell microstructures and a trimodal size distribution, which decreases linearly with increasing gelatin solution pH and homogenizing time, but decreases exponentially with increasing homogenizing speed. In addition, storage temperature showed a notably different effect on traditional emulsion storage. This work provides a fundamental knowledge for the formation, microstructure, and properties of gelatin-based traditional emulsions. It also provides a promising new application for fish oil-loaded emulsions in food beverages, soft candy, and other food products.http://www.sciencedirect.com/science/article/pii/S2213453020301361Emulsion formFish oilGelatinHomogenizing conditionspH
spellingShingle Mengzhen Ding
Ting Zhang
Huan Zhang
Ningping Tao
Xichang Wang
Jian Zhong
Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
Food Science and Human Wellness
Emulsion form
Fish oil
Gelatin
Homogenizing conditions
pH
title Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
title_full Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
title_fullStr Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
title_full_unstemmed Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
title_short Gelatin-stabilized traditional emulsions: Emulsion forms, droplets, and storage stability
title_sort gelatin stabilized traditional emulsions emulsion forms droplets and storage stability
topic Emulsion form
Fish oil
Gelatin
Homogenizing conditions
pH
url http://www.sciencedirect.com/science/article/pii/S2213453020301361
work_keys_str_mv AT mengzhending gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability
AT tingzhang gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability
AT huanzhang gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability
AT ningpingtao gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability
AT xichangwang gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability
AT jianzhong gelatinstabilizedtraditionalemulsionsemulsionformsdropletsandstoragestability