Functional Foods from Marine

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Foods of Marine Origin".

Deadline for manuscript submissions: closed (30 November 2024) | Viewed by 1998

Special Issue Editors


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Guest Editor
School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
Interests: processing; nutrition and functional activity in aquatic products; bioactive substances in aquatic products

E-Mail Website
Guest Editor
School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
Interests: aquatic product; seafood; marine products; endogenous enzymes and inhibitors; by-product usage; storage; quality change; quality control
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Special Issue Information

Dear Colleagues,

The ocean, a vast and mysterious realm, harbors treasures that extend beyond its azure waves. Within its depths lie vital food and nutrition resources for humanity. Marine foods, sustainable and environmentally friendly, provide high-quality protein, essential for human consumption. Research reveals that diets rich in marine foods correlate with a reduced risk of chronic diseases. These oceanic delights are not only low in calories but also brim with functional compounds. Among these bioactive substances are bioactive peptides, terpenes, polyketides, alkaloids, unsaturated fatty acids, polysaccharides, vitamins, and minerals. These elements have demonstrated positive health effects. Papers on the isolation, purification, structure identification, absorption, and activity mechanism of functional active substances in marine foods are also welcomed.

Dr. Zhenyu Wang
Dr. Liming Sun
Guest Editors

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Keywords

  • marine bioresources
  • fish
  • shellfish
  • seaweed
  • health benefit
  • separation science and mechanism of biological activity

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Published Papers (1 paper)

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Research

19 pages, 8539 KiB  
Article
Optimization of the Preparation Process and Ameliorative Efficacy in Osteoporotic Rats of Peptide–Calcium Chelates from Skipjack Tuna (Katsuwonus pelamis) Meat
by Wan-Zhen Yan, Jiao Wang, Yu-Mei Wang, Yu-Hui Zeng, Chang-Feng Chi and Bin Wang
Foods 2024, 13(17), 2778; https://doi.org/10.3390/foods13172778 - 30 Aug 2024
Cited by 17 | Viewed by 1592
Abstract
This study aimed to establish the preparation process of peptide–calcium chelates (TMP-Ca) using skipjack tuna meat and investigate the function and mechanism of TMP-Ca in an osteoporosis model of rats. The results indicated that trypsin is more suitable for preparing the Ca-chelating hydrolysates [...] Read more.
This study aimed to establish the preparation process of peptide–calcium chelates (TMP-Ca) using skipjack tuna meat and investigate the function and mechanism of TMP-Ca in an osteoporosis model of rats. The results indicated that trypsin is more suitable for preparing the Ca-chelating hydrolysates of tuna meat, and the optimal hydrolysis conditions were derived as follows: digestion time 4 h, material–liquid ratio 1:10, and enzyme dose 3%. The conditions for chelating Ca with tuna meat hydrolysate were optimized to be chelation time 50 min, temperature 50 °C, pH 8.0, and a peptide–Ca ratio 1:10. The prepared hydrolysate was subjected to ultrafiltration, and the fraction (TMP) (MW <1 kDa) showed the highest Ca chelation rate (51.27 ± 1.42%) and was made into the peptide–Ca chelates (TMP-Ca). In osteoporotic rats, TMP-Ca significantly improved the decrease in ovarian indexes caused by retinoic acid. It also elevated serum Ca, phosphorus, and bone turnover indexes, increased the number of bone trabeculae, and improved bone microstructure. In addition, we confirmed that TMP-Ca could regulate the OPG/TRAF6 pathway to reduce osteoclast differentiation, inhibit bone resorption, and promote bone formation. Therefore, TMP-Ca could significantly ameliorate osteoporosis, and this study provides a functional component for the preparation of healthcare products using skipjack tuna meat to treat osteoporosis. Full article
(This article belongs to the Special Issue Functional Foods from Marine)
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