Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides

This study conducted a systematic comparison of four drying methods (vacuum freeze-drying, spray drying, spray freeze-drying, and hot air drying) on abalone bioactive peptides, investigating their effects on physicochemical properties and nutritional composition. Scanning electron microscopy reveale...

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Main Authors: Qiting Li, Longxiang Li, Pufu Lai, Yingying Wei, Chunmei Lai, Yusha Liu, Mengjie Yang, Shaoxiong Zhou, Junchen Chen, Junzheng Sun
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/30/7/1516
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author Qiting Li
Longxiang Li
Pufu Lai
Yingying Wei
Chunmei Lai
Yusha Liu
Mengjie Yang
Shaoxiong Zhou
Junchen Chen
Junzheng Sun
author_facet Qiting Li
Longxiang Li
Pufu Lai
Yingying Wei
Chunmei Lai
Yusha Liu
Mengjie Yang
Shaoxiong Zhou
Junchen Chen
Junzheng Sun
author_sort Qiting Li
collection DOAJ
description This study conducted a systematic comparison of four drying methods (vacuum freeze-drying, spray drying, spray freeze-drying, and hot air drying) on abalone bioactive peptides, investigating their effects on physicochemical properties and nutritional composition. Scanning electron microscopy revealed distinct morphological characteristics: hot-air-dried samples showed compact structures with large particles, and vacuum-freeze-dried samples exhibited flaky morphology, while spray-freeze-dried and spray-dried samples demonstrated advantageous smaller particle sizes. Spray freeze-drying achieved superior emulsification capacity and fat absorption, significantly higher than hot air drying. The enhanced performance was attributed to increased exposure of hydrophobic amino acid residues and improved surface activity. Regarding nutritional composition, vacuum freeze-drying demonstrated optimal protein and total amino acid preservation, while spray freeze-drying showed the highest retention of Ca and Fe. Interestingly, hot air drying exhibited superior vitamin A retention, attributed to its fat-soluble nature and stability below 100 °C. The particle size reduction in spray-freeze-dried samples enhanced solvent–solute contact area, contributing to improved solubility and consequently superior foaming properties. These findings provide valuable insights into the relationship between drying methods and product characteristics, offering guidance for optimizing processing conditions in marine protein production.
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issn 1420-3049
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record_format Article
series Molecules
spelling doaj-art-2ad404c744dc4393af892e835fb7034b2025-08-20T03:08:57ZengMDPI AGMolecules1420-30492025-03-01307151610.3390/molecules30071516Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive PeptidesQiting Li0Longxiang Li1Pufu Lai2Yingying Wei3Chunmei Lai4Yusha Liu5Mengjie Yang6Shaoxiong Zhou7Junchen Chen8Junzheng Sun9College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaInstitute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, ChinaInstitute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, ChinaCollege of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaInstitute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, ChinaCollege of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaInstitute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, ChinaInstitute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, ChinaThis study conducted a systematic comparison of four drying methods (vacuum freeze-drying, spray drying, spray freeze-drying, and hot air drying) on abalone bioactive peptides, investigating their effects on physicochemical properties and nutritional composition. Scanning electron microscopy revealed distinct morphological characteristics: hot-air-dried samples showed compact structures with large particles, and vacuum-freeze-dried samples exhibited flaky morphology, while spray-freeze-dried and spray-dried samples demonstrated advantageous smaller particle sizes. Spray freeze-drying achieved superior emulsification capacity and fat absorption, significantly higher than hot air drying. The enhanced performance was attributed to increased exposure of hydrophobic amino acid residues and improved surface activity. Regarding nutritional composition, vacuum freeze-drying demonstrated optimal protein and total amino acid preservation, while spray freeze-drying showed the highest retention of Ca and Fe. Interestingly, hot air drying exhibited superior vitamin A retention, attributed to its fat-soluble nature and stability below 100 °C. The particle size reduction in spray-freeze-dried samples enhanced solvent–solute contact area, contributing to improved solubility and consequently superior foaming properties. These findings provide valuable insights into the relationship between drying methods and product characteristics, offering guidance for optimizing processing conditions in marine protein production.https://www.mdpi.com/1420-3049/30/7/1516bioactive peptideproteindriedphysical and chemical propertiesnutritional components
spellingShingle Qiting Li
Longxiang Li
Pufu Lai
Yingying Wei
Chunmei Lai
Yusha Liu
Mengjie Yang
Shaoxiong Zhou
Junchen Chen
Junzheng Sun
Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
Molecules
bioactive peptide
protein
dried
physical and chemical properties
nutritional components
title Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
title_full Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
title_fullStr Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
title_full_unstemmed Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
title_short Effects of Different Drying Methods on Physicochemical Properties and Nutritional Quality of Abalone Bioactive Peptides
title_sort effects of different drying methods on physicochemical properties and nutritional quality of abalone bioactive peptides
topic bioactive peptide
protein
dried
physical and chemical properties
nutritional components
url https://www.mdpi.com/1420-3049/30/7/1516
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